02031nas a2200241   4500008004100000022001400041245016300055210006900218260007300287300001200360490000800372520113200380653001101512653001701523653000801540653001701548653001401565100002601579700001601605700001901621700001801640856013101658       2006                        eng d  a1381-116900aCobalt-containing hexagonal mesoporous molecular sieves (Co-HMS): Synthesis, characterization and catalytic activity in the oxidation reaction of ethylbenzene0 aCobaltcontaining hexagonal mesoporous molecular sieves CoHMS Syn  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAUG  a123-1300 v2553 a<p>Cobalt-containing hexagonal mesoporous materials (Co-HMS and Co/HMS) with different cobalt content were synthesized for the first time by direct hydrothermal and post-synthesis (grafting) method. The materials were characterized in detail by X-ray diffraction, BET surface area, N-2 sorption isotherms, SEM, TEM, UV-vis and XPS techniques. Powder X-ray diffraction pattern, N2 adsorption-desorption analysis and TEM analysis show the presence of hexagonal mesoporous structure, having Type W isotherms and reveals the typical wormhole-like morphology. Spectroscopic techniques like UV-vis and XPS reveal cobalt in +2 oxidation state and tetrahedrally coordinated. Liquid phase oxidation of ethylbenzene using TBHP (70 wt%) as an oxidant shows that the catalysts are highly active, under solvent free conditions as well as under lower cobalt concentrations. Leaching studies performed by hot filtration experiments show that the cobalt catalysts prepared by hydrothermal methods are stable, while the grafted catalysts show the leaching of cobalt under the reaction conditions. (c) 2006 Elsevier B.V. All rights reserved.</p>10aCo-HMS10aethylbenzene10aHMS10ahydrothermal10aOxidation1 aBhoware, Shrikant, S.1 aShylesh, S.1 aKamble, K., R.1 aSingh, A., P.  uhttps://library.ncl.res.in/content/cobalt-containing-hexagonal-mesoporous-molecular-sieves-co-hms-synthesis-characterization-001749nas a2200289   4500008004100000022001400041245012700055210006900182260007100251300001400322490000600336520071700342653002101059653002001080653003101100653002101131653001701152100001801169700001601187700002001203700002101223700001701244700002201261700001901283700002501302856013201327       2009                        eng d  a1944-824400aEnhanced conversion efficiency in dye-sensitized solar cells based on hydrothermally synthesized TiO2-MWCNT nanocomposites0 aEnhanced conversion efficiency in dyesensitized solar cells base  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcSEP  a2030-20350 v13 a<p>A 50 % enhancement in the conversion efficiency (4.9-7.37 %) is realized in dye-sensitized solar cells Using hydrothermally synthesized TiO2-multiwalled carbon nanotube (MWCNT) nanocomposites as compared to hydrothermally synthesized TiO2 without MWCNT and Degussa P25. Several characterizations have been employed to reveal the nature of the modification imparted to the MWCNTs under hydrothermal processing conditions and the resulting TiO2-MWCNT conjugation through -COOH groups. Efficient charge transfer In the nanocomposite and efficient electron transport by MWCNT (significantly higher Incident-photon-to-current conversion efficiency) are suggested to be the possible reasons for the enhancement.</p>10aCarbon nanotubes10acharge transfer10aDye-sensitized solar cells10aHybrid composite10ahydrothermal1 aMuduli, Subas1 aLee, Wonjoo1 aDhas, Vivek, V.1 aMujawar, Sarfraj1 aDubey, Megha1 aVijayamohanan, K.1 aHan, Sung-Hwan1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/enhanced-conversion-efficiency-dye-sensitized-solar-cells-based-hydrothermally-synthesized-001697nas a2200301   4500008004100000022001400041245011600055210006900171260009500240300001400335490000600349520063200355653003100987653001301018653001701031653001401048653001401062100002001076700001801096700002201114700001401136700002501150700002101175700002001196700002301216700002901239856012701268       2009                        eng d  a1533-488000aNon-templated hydrothermal growth of anisotropic magnetite nanostructures using hexamine as the directing agent0 aNontemplated hydrothermal growth of anisotropic magnetite nanost  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScOCT  a5823-58280 v93 a<p>Anisotropic growth of magnetite (Fe(3)O(4)) nanoparticles is achieved in a hydrothermal growth process using hexamine to play a dual role of oxide forming and directing agent. The samples are characterized by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, squid magnetometry, ferromagnetic resonance technique, diffuse reflectance spectroscopy and Mossbauer spectroscopy, which collectively establish the formation of Fe(3)O(4) phase. Anisotropic structures such as nanorods and nanotubules are revealed and these are shown to exhibit good humidity sensing properties.</p>10aAnisotropic Nanostructures10aHexamine10ahydrothermal10amagnetite10aMossbauer1 aBhagwat, S., V.1 aJouen, Samuel1 aKundaliya, D., C.1 aSingh, H.1 aJagadale, Tushar, C.1 aAthawale, A., A.1 aLofland, S., E.1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/non-templated-hydrothermal-growth-anisotropic-magnetite-nanostructures-using-hexamine-002190nas a2200277   4500008004100000022001400041245009100055210006900146260009200215300001200307490000600319520125600325653001601581653001801597653001201615653001301627653001701640100001801657700001801675700001901693700002401712700001801736700002001754700001801774856012001792       2011                        eng d  a1936-661200aControlling stoichiometry in low temperature synthesis of La0.7Sr0.3MnO3 nanoparticles0 aControlling stoichiometry in low temperature synthesis of La07Sr  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScFEB  a424-4300 v43 a<p>Nanoparticles of complex oxides (&lt;20 nm) are desirable for several applications in view of the diverse range of physical properties of such oxides. However the simultaneous presence of multiple cation precursors makes the corresponding chemical synthesis non-trivial with possible intermediate evolution of secondary phases. Such phases could react at high temperatures to form the desired stoichiometry, but this process is diffusion limited and can lead to larger particles. In this work we examine the role of three different reaction and growth controlling additives, namely dextran, citric acid and hexamine, on the synthesis of the well known colossal magneto-resistive (CMR) manganite La0.7Sr0.3MnO3. We demonstrate that phase evolutions differ significantly in the three cases, and the physical properties of the products also differ dramatically. Only dextran is shown to yield the desired phase with faceted nanoparticles at as low a temperature as 600 degrees C. A high saturation moment of similar to 47 emu/gm is realized at 10 K with a good square hysteresis loop. In 650 degrees C annealed sample, room temperature magnetization of similar to 15 emu/gm was obtained, which brings the nanoparticles in the applicability domain.</p>10aCitric acid10aComplex Oxide10aDextran10aHexamine10ahydrothermal1 aAzarifar, Ali1 aYadav, P., A.1 aChawla, A., K.1 aJog, Jyoti, Prakash1 aPatil, S., I.1 aChandra, Ramesh1 aOgale, S., B.  uhttps://library.ncl.res.in/content/controlling-stoichiometry-low-temperature-synthesis-la07sr03mno3-nanoparticles-001886nas a2200253   4500008004100000022001400041245008200055210006900137260010600206300001400312490000700326520094000333653003101273653004301304653001701347100002001364700001801384700002401402700002001426700002301446700002001469700002901489856011401518       2011                        eng d  a0038-092X00aEnhanced DSSC performance with high surface area thin anatase TiO2 nanoleaves0 aEnhanced DSSC performance with high surface area thin anatase Ti  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUN  a1213-12190 v853 a<p>Thin anatase TiO2 nanoleaves (NLs) with high surface area (similar to 93 m(2)/g) are synthesized by hydrothermal route and dye-sensitized solar cells (DSSC) made using such NLs are compared with those made with hydro-thermally synthesized TiO2 nanoparticles and the Degussa P25 powder. The NLs-based DSSCs show increment of 16% and 24% in the total conversion efficiency over the cells made with NPs and P25 respectively. Interestingly, the highest increment in the conversion efficiency (similar to 35%) is achieved for cells made using a 50:50 (wt/wt) mixture of NLs and NPs. In this case the dye loading is found to be &gt;50% higher than the case of NP films. Moreover the DC resistance of diffusion of I-3(-) in electrolyte (as revealed by the electrochemical impedance spectroscopy) is substantially lower than the NP film case, other cell parameters being nominally comparable. (C) 2011 Elsevier Ltd. All rights reserved.</p>10aDye-sensitized solar cells10aElectrochemical impedance spectroscopy10ahydrothermal1 aDhas, Vivek, V.1 aMuduli, Subas1 aAgarkar, Shruti, A.1 aRana, Abhimanyu1 aHannoyer, Beatrice1 aBanerjee, Rahul1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/enhanced-dssc-performance-high-surface-area-thin-anatase-tio2-nanoleaves-002494nas a2200277   4500008004100000022001400041245011500055210006900170260010600239300001600345490000700361520148700368653001501855653001201870653002401882653001701906653001901923100002401942700002201966700001801988700002302006700002102029700001802050700001702068856013102085       2011                        eng d  a0360-319900aSurfactant tunable hierarchical nanostructures of CdIn2S4 and their photohydrogen production under solar light0 aSurfactant tunable hierarchical nanostructures of CdIn2S4 and th  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcSEP  a11628-116390 v363 a<p>The hierarchical nanostructures of CdIn2S4 were selectively prepared through hydrothermal process in the presence of different surfactants. Structural study demonstrated existence of cubic spinel structure and micro structural study shown a pretty marigold flower like morphology without any surfactant. The effect of surfactants on the morphology and microstructure of CdIn2S4 has been studied by using Polyvinyl pyrrolidone (PVP) and Cetyltrimethyl ammonium bromide (CTAB) as a surfactants. The CdIn2S4 bipyramids with length of 0.7-1 mu m have been obtained using PVP. Interestingly, the nanopetals (thin and transparent) of CdIn2S4 are self assembled into hollow spheres in the presence of CTAB. Considering the importance of these unique nanostructures, the growth mechanism has also been proposed. The optical properties demonstrated the band gap in the range of 2.12-2.29 eV which is well within the visible region. In this contest, photocatalytic activity for hydrogen production using the above nanostructures under visible light was also demonstrated. The prima-fascia observations shows that the bipyramidal CdIn2S4 exhibit excellent photocatalytic activity for hydrogen production (3238 mu molh(-1)) than other nanostructures. Being a nanostructured semiconductor chalcogenide with a good stability will also have potential applications in solar cells and LED. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.</p>10aBipyramids10aCdIn2S410aHydrogen generation10ahydrothermal10aSelf-assembled1 aBhirud, Ashwini, P.1 aChaudhari, Nilima1 aNikam, Latesh1 aSonawane, Ravindra1 aPatil, Kashinath1 aBaeg, Jin-Ook1 aKale, Bharat  uhttps://library.ncl.res.in/content/surfactant-tunable-hierarchical-nanostructures-cdin2s4-and-their-photohydrogen-production-001264nas a2200217   4500008004100000022001400041245005800055210005800113260007400171300001400245490000700259520054300266653001700809653001800826653003000844100002000874700001400894700002700908700001900935856009200954       2011                        eng d  a1388-076400aSynthesis and optical studies of GdCrO3 nanoparticles0 aSynthesis and optical studies of GdCrO3 nanoparticles  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcMAR  a1019-10270 v133 a<p>{Here we report for the first time, a detailed synthesis mechanism of GdCrO3 nanoparticles using a surfactant-less hydrothermal method. We also report a detailed study of their structural and optical properties. The selected area electron diffraction and powder X-ray diffraction studies of GdCrO3 nanoparticles show pure phase and excellent crystallinity with average particle size around 50-60 nm. The structural analysis indicates a distorted perovskite crystal structure with lattice parameter values of a = 5.3099 +/- A 0.0022</p>10ahydrothermal10aNanoparticles10aRare earth orthochromites1 aJaiswal, Adhish1 aDas, Raja1 aAdyanthaya, Suguna, D.1 aPoddar, Pankaj  uhttps://library.ncl.res.in/content/synthesis-and-optical-studies-gdcro3-nanoparticles-001836nas a2200277   4500008004100000022001400041245009400055210006900149260010600218300001400324490000700338520084400345653001701189653000701206653003101213653002101244653001701265100001801282700002001300700002001320700002201340700002501362700001701387700002901404856012501433       2012                        eng d  a0038-092X00aTiO2-Au plasmonic nanocomposite for enhanced dye-sensitized solar cell (DSSC) performance0 aTiO2Au plasmonic nanocomposite for enhanced dyesensitized solar   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcMAY  a1428-14340 v863 a<p>Anatase TiO2 nanoparticles dressed with gold nanoparticles were synthesized by hydrothermal process by using mixed precursor and controlled conditions. Diffused Reflectance Spectra (DRS) reveal that in addition to the expected TiO2 interband absorption below 360 nm gold surface plasmon feature occurs near 564 nm. It is shown that the dye sensitized solar cells made using TiO2-Au plasmonic nanocomposite yield superior performance with conversion efficiency (CE) of similar to 6% (no light harvesting), current density (J(SC)) of similar to 13.2 mA/cm(2), open circuit voltage (V-oc) of similar to 0.74 V and fill factor (FF) 0.61; considerably better than that with only TiO2 nanoparticles (CE similar to 5%, J(SC) similar to 12.6 mA/cm(2), V-oc similar to 0.70 V, FF similar to 0.56). (C) 2012 Elsevier Ltd. All rights reserved.</p>10aAnatase TiO210aAu10aDye-sensitized solar cells10aHybrid composite10ahydrothermal1 aMuduli, Subas1 aGame, Onkar, S.1 aDhas, Vivek, V.1 aVijayamohanan, K.1 aBogle, Kashinath, A.1 aValanoor, N.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/tio2-au-plasmonic-nanocomposite-enhanced-dye-sensitized-solar-cell-dssc-performance-001888nas a2200265   4500008004100000022001400041245008700055210006900142260007100211300001600282490000600298520096500304653003001269653002301299653002001322653001701342653002001359653001701379100002001396700002101416700002601437700001801463700002501481856011601506       2014                        eng d  a1944-824400aHollow Co0.85Se nanowire array on carbon fiber paper for high rate pseudocapacitor0 aHollow Co085Se nanowire array on carbon fiber paper for high rat  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcNOV  a18844-188520 v63 a<p>A supercapacitor electrode is fabricated with Co0.85Se hollow nanowires (HNW) array, which is synthesized by wet chemical hydrothermal selenization of initially grown cobalt hydroxyl carbonate nanowires on conductive CFP. The dense self-organized morphology of Co0.85Se HNWs is revealed by scanning/transmission electron microscopy. The as-synthesized Co0.85Se HNWs possess high pseudocapacitive property with high capacitance retention and high durability. The areal capacitance value is seen to vary from 929.5 to 600 mF cm(-2) (60% retention) as the current density is increased from 1 to 15 mA cm(-2), an increase of a factor of 15. Based on mass loading, this corresponds to a very high gravimetric capacitance of 674 (for 2 mA cm(-2) or 1.48 Ag-1) and 444 Fg(1-) (for 15 mA cm(-2) or 11 A g(-1)) in a full-cell configuration with the Co0.85Se HNWs as cathode and activated carbon as anode (asymmetric configuration) promising results are obtained.</p>10aasymmetric supercapacitor10acarbon fiber paper10acobalt selenide10ahydrothermal10apseudocapacitor10aselenization1 aBanerjee, Abhik1 aBhatnagar, Sumit1 aUpadhyay, Kush, Kumar1 aYadav, Prasad1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/hollow-co085se-nanowire-array-carbon-fiber-paper-high-rate-pseudocapacitor-001534nas a2200253   4500008004100000022001400041245011700055210006900172260007100241300001400312490000600326520059000332653001900922653002200941653001700963653002500980653002201005100002901027700002201056700002301078700002501101700002301126856013101149       2016                        eng d  a1944-824400aGlucose-derived porous carbon-coated silicon nanowires as efficient electrodes for aqueous micro-supercapacitors0 aGlucosederived porous carboncoated silicon nanowires as efficien  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a4298-43020 v83 a<p>In this study, we report on carbon coating of vertically aligned silicon nanowire (SiNWs) arrays via a simple hydrothermal process using glucose as carbon precursor. Using this process, a thin carbon layer is uniformly deposited on the SiNWs. Under optimized conditions, the coated SiNWs electrode showed better electrochemical energy storage capacity as well as exceptional stability in aqueous system as compared to uncoated SiNWs. The as-measured capacitance reached 25.64 mF/cm(2) with a good stability up to 25000 charging/discharging cycles in 1 M Na2SO4 aqueous solution.</p>10acarbon coating10aglucose precursor10ahydrothermal10amicrosupercapacitors10asilicon nanowires1 aDevarapalli, Rami, Reddy1 aSzunerits, Sabine1 aCoffinier, Yannick1 aShelke, Manjusha, V.1 aBoukherroub, Rabah  uhttps://library.ncl.res.in/content/glucose-derived-porous-carbon-coated-silicon-nanowires-efficient-electrodes-aqueous-micro-002204nas a2200253   4500008004100000022001400041245009300055210006900148260000800217300001400225490000600239520137800245653002601623653002401649653001701673653000801690653000801698100002201706700002801728700002401756700002401780700002301804856012301827       2017                        eng d  a2365-654900aEnhanced field emission characteristics of a 3D hierarchical Hfo2-Zno heteroarchitecture0 aEnhanced field emission characteristics of a 3D hierarchical Hfo  cMAR  a2305-23100 v23 a<p>Three dimensional (3D) HfO2-ZnO heteroarchitecture comprised of thin coating of HfO2 on self assembled 3D ZnO urchins with pointed apex has been synthesized using hydrothermal route followed by Pulsed Laser Deposition (PLD). The as-synthesized HfO2-ZnO heteroarchitecture was characterized using XRD, SEM, EDS, and (HR) TEM, in order to reveal its structural, morphological, and chemical properties. The HfO2-ZnO heteroarchitecture emitter exhibits superior field emission (FE) behaviour in contrast to the pristine ZnO urchins, demonstrated by delivery of high emission current density of similar to 885 mA/cm2 at an applied field of similar to 3.35 V/mm, against similar to 383 mA/cm(2) at an applied field of similar to 4.32 V/mu m for the pristine ZnO urchins emitter. Interestingly, the HfO2-ZnO heteroarchitecture emitter exhibits excellent emission current stability characterized with fewer fluctuations, owing to very good ion-bombardment resistance offered by the HfO2 coating. Furthermore, the heteroarchitecture thus obtained facilitates tailoring of the morphology with high aspect ratio and modulation of electronic properties as well, thereby enhancing the FE behaviour. Despite HfO2 being wide band gap and high-k material, the HfO2-ZnO heteroarchitecture exhibits potential as promising candidate for fabrication of high current density cold cathode</p>10a3D heteroarchitecture10aField Emission (FE)10ahydrothermal10aPLD10aTEM1 aShisode, Raju, T.1 aSuryawanshi, Sachin, R.1 aMistari, Chetan, D.1 aLate, Dattatray, J.1 aMore, Mahendra, A.  uhttps://library.ncl.res.in/content/enhanced-field-emission-characteristics-3d-hierarchical-hfo2-zno-heteroarchitecture02565nas a2200265   4500008004100000022001400041245010600055210006900161260000800230300001400238490000700252520168100259653002001940653001901960653003401979653001702013653001802030653001702048100002002065700002002085700001402105700001902119700002902138856013202167       2020                        eng d  a1947-293500aNonenzymatic glucose detection in human serum using Ni nanoparticles decorated reduced graphene oxide0 aNonenzymatic glucose detection in human serum using Ni nanoparti  cAUG  a1125-11360 v123 a<p>Reduced Graphene oxide (RGO) decorated with Ni nanoparticles (NiNPs) composites, have been successfully synthesized using a simple hydrothermal method and possessing excellent electrocatalytic activity towards glucose oxidation. The morphological and structural features of RGO-Ni nanocomposites were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS). From TEM, we observed that NiNPs were anchored on RGO sheets. Cyclic Voltammetric (CV) study revealed that the electrocatalytic activity of RGO-Ni nanocomposite with 20% Ni loading (RGONi-20) towards glucose oxidation is better than that shown by bare Glassy Carbon Electrode (GCE), RGO, bare NiNPs, RGONi10 and RGONi-30. The prepared nanocomposites exhibited fast electrocatalytic response (&lt;5 s) towards glucose oxidation. Amperometric study indicates that the present glucose sensor have exhibited excellent performance by offering a lowest detection limit as 5.1 mu M, with linier range from 2 to 5000 mu M and high sensitivity of 896.67 mu A mM(-1) cm(-2). Interference from different anticipatable electroactive substances such as ascorbic acid (AA), uric acid (UA) and dopamine (DA) is not observed. Furthermore, the application of the as prepared sensor was successfully demonstrated for the detection of glucose in human serum and results were comparable to presently used nonenzymatic technique. RGONi-20 nanocomposite electrode holds great promise for the development of biosensors and other electrochemical devices.</p>
10aElectrochemical10aGlucose Sensor10aGraphene-Nickel Nanoparticles10ahydrothermal10aNanocomposite10aNonenzymatic1 aWaichal, Rupali1 aBhirud, Ashwini1 aFouad, H.1 aGosavi, Suresh1 aAshokkumar, Muthupandian  uhttps://library.ncl.res.in/content/nonenzymatic-glucose-detection-human-serum-using-ni-nanoparticles-decorated-reduced-graphene02832nas a2200265   4500008004100000022001400041245012000055210006900175260000900244300001400253490000600267520190400273653002502177653001802202653001702220653003102237653003002268653002102298100002102319700002302340700003002363700001702393700002402410856013202434       2021                        eng d  a2574-096200aZinc-air batteries catalyzed using Co3O4 nanorod-supported N-doped entangled graphene for oxygen reduction reaction0 aZincair batteries catalyzed using Co3O4 nanorodsupported Ndoped   cMAY   a4570-45800 v43 a<p>The work reported here deals with the development of an efficient non-platinum electrocatalyst for electrochemical oxygen reduction reaction (ORR) through a sequential pathway involving hydrothermal treatment followed by freeze-drying to build the desired structural architecture of the catalyst. The designed catalyst (Co3O4/nitrogen-doped entangled porous 3D graphene (NEGF)), which contains Co3O4 nanorods anchored on the surface of three-dimensional (3D)-structured N-doped graphene, was found to display higher ORR activity during single-electrode testing and demonstrate a Zn-air battery (ZAB) system. Under the hydrothermal treatment at 180 degrees C, in the presence of ammonia, nitrogen was doped into the carbon framework of graphene, which subsequently formed a self-assembled entangled 3D structure of graphene after freeze-drying. The hydrothermal treatment and freeze-drying processes were found to play vital roles in tuning the morphological and structural features of the catalyst. The doped nitrogen, apart from its favorable contribution toward ORR, helped facilitate efficient dispersion of oxide nanorods on graphene. Co3O4/NEGF displayed remarkable ORR activity in 0.1 M KOH solution, as evident from the 60 mV onset potential shift compared to the state-of-the-art Pt/C catalyst and the Tafel slope value of 74 mV dec(-1) vs 68 mV dec(-1) for Pt/C. The ZAB fabricated by employing Co3O4/NEGF as the cathode catalyst was found to be an efficient competitor for the system based on the Pt/C cathode. This high performance has been credited to the controlled interplay of the governing factors such as the interfacial interactions leading to the efficient dispersion of metal oxide nanorods, increased catalyst surface area, the cooperative effect arising from the defects present in the N-doped porous 3D graphene, and the synergetic interactions operating in the system.</p>10acobalt-oxide nanorod10afreeze-drying10ahydrothermal10aN-doped entangled graphene10aoxygen reduction reaction10azinc-air battery1 aManna, Narugopal1 aSingh, Santosh, K.1 aKharabe, Geeta, Pandurang1 aTorris, Arun1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/zinc-air-batteries-catalyzed-using-co3o4-nanorod-supported-n-doped-entangled-graphene-oxygen01925nas a2200265   4500008004100000022001400041245009300055210006900148260000800217300001400225490000700239520108500246653001701331653001701348653002101365653001901386100001901405700001701424700002201441700001901463700001801482700001701500700002401517856011801541       2022                        eng d  a1380-222400aSponge microflowers of NiCo2O4: a versatile material for high performance supercapacitor0 aSponge microflowers of NiCo2O4 a versatile material for high per  cAUG  a1239-12520 v293 a<p>
	We report the development of well optimised NiCo2O4 microflowers for high performance supercapacitor application. The efforts were made to optimise the electrode material by tuning the synthetic as well as electrolyte concentration parameters such as (i) hydrothermal reaction temperature, (ii) hydrothermal reaction time, (iii) sintering temperature, and (iv) electrolyte concentration. The physico-chemical and supercapacitive properties were analysed using TGA, XRD, SEM/TEM/HRTEM, XPS, BET, and electrochemical measurements. The well optimised electrode material was obtained at 150 degrees C hydrothermal reaction temperature, 12 h of hydrothermal reaction time, 300 degrees C sintering temperature, and 3 M KOH electrolyte concentration. The optimised sample displayed high specific -capacitance (1478 F/g), -energy density (16.5 Wh/kg), and -power density (248 W/kg). The specific capacitance can be retained to 97.61% after 1000 cycles. The developed NiCo2O4 microflower structures are well optimised and offer great promise for future industrial applications.</p>
10ahydrothermal10aMicroflowers10aNickel cobaltite10asupercapacitor1 aGhadage, Ambar1 aKodam, Pavan1 aNadargi, Digambar1 aShinde, K., P.1 aMulla, Imtiaz1 aPark, J., S.1 aSuryavanshi, Sharad  uhttps://library.ncl.res.in/content/sponge-microflowers-nico2o4-versatile-material-high-performance-supercapacitor02447nas a2200277   4500008004100000022001400041245009600055210006900151260000900220300001100229490000800240520159300248653002101841653001701862653001501879653001901894653000801913653000801921100001701929700002101946700002101967700001901988700001702007700001902024856012602043       2025                        eng d  a0009-261400aSynergistic MoS2@MWCNT nanocomposites for high-efficiency catalysis and energy applications0 aSynergistic MoS2MWCNT nanocomposites for highefficiency catalysi  cNOV   a1424170 v8793 a<p>
	The MoS2-MWCNT composite heterojunction for its potential as an electrocatalyst and energy storage material. The composite demonstrated remarkable electrochemical performance, achieving a specific capacitance of 263 F/g, an energy density of 16.89 Wh/kg, and a power density of 478 W/kg. Using CV profiles, we analyzed the charge storage mechanism and found that the anodic and cathodic processes had b values of 0.48 and 0.45, respectively, indicating diffusion-controlled behavior. Diffusion coefficients of 6.44 x 10(-7) cm(2)/s (anodic) and 11.32 x 10(-7) cm(2)/s (cathodic) confirmed this mechanism. In the constructed device using MoS2-MWCNT and activated carbon (AC), we observed a specific capacitance of 18.71 F/g, an energy density of 5.09 Wh/kg, and a power density of 833 W/kg. After stability, testing, electrochemical impedance spectroscopy (EIS) revealed a slight increase in series resistance, rising from 2.33 Omega to 2.49 Omega. The MoS2-MWCNT composite also exhibited excellent electro catalytic performance. For the hydrogen evolution reaction (HER), it achieved an over potential of 0.221 V and a Tafel slope of 0.321 V/dec. After stability testing, we measured Rs and Rct values of 4.86 Omega and 2.57 Omega, respectively. For the oxygen evolution reaction (OER), the composite showed an over potential of 597 mV and a Tafel slope of 0.285 V/dec, with post-stability Rs and Rct values of 5.63 Omega and 5.57 Omega, respectively. These findings highlight the versatility of the MoS2-MWCNT composite for applications in energy storage and water splitting.</p>
10aelectrocatalysis10ahydrothermal10aMoS2-MWCNT10asupercapacitor10aTEM10aXPS1 aAuti, P., S.1 aKanawade, R., V.1 aAlshehri, S., A.1 aWarule, S., S.1 aShin, D., K.1 aYewale, M., A.  uhttps://library.ncl.res.in/content/synergistic-mos2mwcnt-nanocomposites-high-efficiency-catalysis-and-energy-applications