01764nas a2200241 4500008004100000022001400041245010800055210006900163260006800232300001400300490000700314520087600321653003501197653003001232653001501262100001601277700001801293700001701311700002101328700002801349700002301377856012201400 2005 eng d a0021-899500aAromatic polyimides from m-phenylene diamines containing pendant groups: synthesis and characterization0 aAromatic polyimides from mphenylene diamines containing pendant  a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcAUG a1377-13840 v973 a

Two diamine monomers, 4-[4-(1-methyl-1-phenyl)phenoxy]-1,3-(diamino benzene and 4-{-[(4-methylphenyl)sulfonyl]phenoxy}-1,3-diamino benzene, were synthesized, and both diamines were polycondensed with three commercial dianhydrides to obtain aromatic polyimides containing pendant groups. The polyimides were characterized by solubility tests, viscosity measurements, IR, H-1-NMR, and C-13- NMR spectroscopy, x-ray diffraction studies, and thermogravimetric analysis. The polymides had inherent viscosities of 0.33-0.58 dL/g in m-cresol at 30 +/- 0.1 degrees C. All the polyimides were amorphous and were soluble in solvents such as NNdimethylacetamide, N-methyl-2-pyrrolidone, N,N-dimethylformamide, and in-cresol. Thermogravimetric analysis of the polymides indicated no weight loss below 410 degrees C under a nitrogen atmosphere. (c) 2005 Wiley Periodicals, Inc.

10aheteroatom-containing polymers10aHigh performance polymers10apolyimides1 aPal, R., R.1 aPatil, P., S.1 aDere, R., T.1 aSalunkhe, M., M.1 aMaldar, Noormahamad, N.1 aWadgaonkar, P., P. uhttps://library.ncl.res.in/content/aromatic-polyimides-m-phenylene-diamines-containing-pendant-groups-synthesis-and-100931nas a2200181 4500008004100000022001400041245010300055210006900158260007300227300001200300490000700312520021700319100002700536700001800563700002200581700002200603856012400625 2005 eng d a0959-943600aFacile oxidation of flavanones to flavones using [hydroxy(tosyloxy)iodo]benzene in an ionic liquid0 aFacile oxidation of flavanones to flavones using hydroxytosyloxy aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY a100-1010 v153 a

A method for the oxidation of flavationes to flavones has been developed using [hydroxy(tosyloxy)iodo] benzene (HTIB) in the room-temperature ionic liquid 1,3-di-n-butylimidazolium bromide ([bbim]Br-+(-)).

1 aMuthukrishnan, Murugan1 aPatil, P., S.1 aMore, Shivaji, V.1 aJoshi, Ramesh, A. uhttps://library.ncl.res.in/content/facile-oxidation-flavanones-flavones-using-hydroxytosyloxyiodobenzene-ionic-liquid-102406nas a2200265 4500008004100000022001400041245016100055210006900216260006900285300001200354490000700366520141600373653001701789653002101806653002701827653001301854100002301867700002301890700001801913700001701931700002001948700002001968700002401988856012802012 2005 eng d a0925-963500aGradual transitions in morphology of diamond films grown by using N-2 admixtures of CH4+H-2 gas in a hot filament assisted chemical vapour deposition system0 aGradual transitions in morphology of diamond films grown by usin aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcFEB a232-2420 v143 a

A study of the evolution of morphology of diamond films grown as a function of N-2 gas additions to the CH4+H-2 precursor in an HF-CVD system is presented. With the increase of admixture of N2 fraction, in contrast to earlier studies, the morphology was observed first to gradually change from {111}-faceted crystallites texture to that of an intermediate cubo-octahedral crystallite texture and then gradually but finally to transform completely into that of {100}-faceted crystallites. The threshold nitrogen concentration, [N-2](thr), required to bring about the said transition in morphology was much larger than it was reported previously. Moreover, the morphology transition required a larger [N-2](thr) when a large fraction of methane was employed. Further additions of nitrogen, that just exceeded the [N-2](thr), resulted in growth of films containing slightly bigger {100}-multi-layered grains or isolated planar {100}-platelets. For extremely large nitrogen additions, the growth of nanocrystalline or amorphous carbon films was observed. The N-2 additions more than 50 vol.% did not yield any deposition. Raman scattering and photoluminescence measurements were used respectively for characterizing the quality and nitrogen doping in the films. These results are attributed to the possible catalytic role of atomic nitrogen at the growing surface. (C) 2005 Elsevier B.V. All rights reserved.

10adiamond film10ahot filament CVD10amorphology transitions10anitrogen1 aKshirsagar, S., T.1 aKshirsagar, R., B.1 aPatil, P., S.1 aKulkarni, A.1 aMandate, A., B.1 aGaikwad, A., B.1 aGokhale, Suresh, P. uhttps://library.ncl.res.in/content/gradual-transitions-morphology-diamond-films-grown-using-n-2-admixtures-ch4h-2-gas-hot-101965nas a2200253 4500008004100000022001400041245011400055210006900169260009800238300001200336490000700348520099500355653000601350653005601356653002801412653001401440653002001454100001601474700001801490700002101508700002801529700002301557856013101580 2005 eng d a0959-810300aSynthesis and characterization of aromatic polyamides containing an s-triazine ring with thiophenoxy linkages0 aSynthesis and characterization of aromatic polyamides containing aTHE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLANDbJOHN WILEY & SONS LTDcMAR a569-5750 v543 a

A series of aromatic polyamides containing an s-triazine ring with thiophenoxy linkages was synthesized from two new diacids, namely 2,4-bis-(4-carboxyphenoxy)-6-thiophenoxy-s-triazine and 2,4-bis-(3-carboxyphenoxy)-6-thiophenoxy-s-triazine, and commercially available aromatic diamines by using Yamazaki's phosphorylation reaction. The polyamides were obtained in good yields and were characterized by solubility tests, viscosity measurements, FTIR, H-1 and C-13 NMR spectroscopy, X-ray diffraction studies and thermogravimetric analysis. The polyamides were found to have inherent viscosities in the range of 0.35 to 0.56 dl g(-1) in N,N-dimethylacetamide (DMAc) at 30 +/- 0.1 degreesC. All the polyamides were readily soluble in solvents such as DMAc, N-methyl-2-pyrrolidone (NMP), N,N-dimethylformamide (DMF) and m-cresol. Thermogravimetric analysis of the polyamides indicated no weight loss below 345 degreesC under a nitrogen atmosphere. (C) 2004 Society of Chemical Industry.

10a210a4-bis-(3/4-carboxyphenoxy)-6-thiophenoxy-s-triazine10adirect polycondensation10apolyamide10as-triazine ring1 aPal, R., R.1 aPatil, P., S.1 aSalunkhe, M., M.1 aMaldar, Noormahamad, N.1 aWadgaonkar, P., P. uhttps://library.ncl.res.in/content/synthesis-and-characterization-aromatic-polyamides-containing-s-triazine-ring-thiophenoxy-000997nas a2200205 4500008004100000022001400041245006200055210004800117260008100165300001600246490000700262520028700269100002600556700001800582700001900600700002600619700002600645700002600671856009400697 2006 eng d a1600-536800a3-(2,4-Dichlorophenyl)-1-(4-methoxyphenyl)prop-2-en-1-one0 a324Dichlorophenyl14methoxyphenylprop2en1one a9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLANDbBLACKWELL PUBLISHINGcNOV aO4773-O47740 v623 a

In the title compound, C16H12Cl2O2, the dihedral angle between the benzene rings is 28.63 (6)degrees. The crystal structure is stabilized by intermolecular C-H center dot center dot center dot O hydrogen bonds and by short Cl center dot center dot center dot Cl interactions.

1 aRosli, Mohd, Mustaqim1 aPatil, P., S.1 aFun, Hoong-Kun1 aRazak, Ibrahim, Abdul1 aPuranik, Vedavati, G.1 aDharmaprakash, S., M. uhttps://library.ncl.res.in/content/3-24-dichlorophenyl-1-4-methoxyphenylprop-2-en-1-one-000979nas a2200205 4500008004100000022001400041245005800055210004400113260008100157300001600238490000700254520028000261100001800541700002600559700001900585700002600604700002600630700002600656856009100682 2006 eng d a1600-536800a3-(3-bromophenyl)-1-(4-methoxyphenyl)-prop-2-en-1-one0 a33bromophenyl14methoxyphenylprop2en1one a9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLANDbBLACKWELL PUBLISHINGcNOV aO4798-O47990 v623 a

In the title compound, C16H13BrO2, the dihedral angle between the aromatic rings is 41.34 (6)degrees. The molecules (via two C-H center dot center dot center dot O intermolecular interactions) form chains along the a axis that stack into layers parallel to the b axis.

1 aPatil, P., S.1 aRosli, Mohd, Mustaqim1 aFun, Hoong-Kun1 aRazak, Ibrahim, Abdul1 aPuranik, Vedavati, G.1 aDharmaprakash, S., M. uhttps://library.ncl.res.in/content/3-3-bromophenyl-1-4-methoxyphenyl-prop-2-en-1-one-002013nas a2200229 4500008004100000022001400041245011800055210006900173260010600242300001400348490000700362520110200369653002301471653003101494653001101525653003101536100002401567700001801591700001801609700002601627856013001653 2012 eng d a0025-540800aNovel microwave assisted sol-gel synthesis (MW-SGS) and electrochromic performance of petal like h-WO3 thin films0 aNovel microwave assisted solgel synthesis MWSGS and electrochrom aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUL a1787-17930 v473 a

Use of domestic microwave oven is first time employed for chemical deposition of nanocrystalline hexagonal WO3 (h-WO3) thin films. Low cost precursors like sodium tungstate, hydrochloric acid, oxalic acid and potassium sulfate signifies cost effectiveness of this thin film fabrication route. Scanning electron microscopy images reveal formation of petal like nanodisks. A number of analytical techniques were used to characterize the WO3 petal like nanodisks, including X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX). X-ray photoelectron spectroscopy, FT-IR spectroscopy, Raman scattering spectroscopy, UV-visible spectrophotometry and cyclic voltammetry (CV). The X-ray photoelectron spectroscopic studies revealed 2.89 O/W atomic ratio. The electrical transport studies on WO3 thin films show semiconducting behavior with n-type semiconductivity. The value of determined coloration efficiency is 57.90 cm(2)/C. The mechanism of Li+ intercalation and deinercalation in h-WO3 matrix is proposed for enhanced electrochromism. (C) 2012 Elsevier Ltd. All rights reserved.

10aChemical synthesis10aElectrochemical properties10aOxides10aphotoelectron spectroscopy1 aKharade, Rohini, R.1 aPatil, K., R.1 aPatil, P., S.1 aBhosale, Popatrao, N. uhttps://library.ncl.res.in/content/novel-microwave-assisted-sol-gel-synthesis-mw-sgs-and-electrochromic-performance-petal-h-002387nas a2200265 4500008004100000022001400041245012100055210006900176260000900245300001100254490000800265520152600273653001701799653001801816653000801834100002201842700001801864700001901882700002401901700001801925700001801943700001601961700001801977856012601995 2020 eng d a0924-424700a2-D to 3-D conversion of WO3 nanostructures using structure directing agent for enhanced NO2 gas sensing performance0 a2D to 3D conversion of WO3 nanostructures using structure direct cAPR  a1118820 v3043 a

An exotic 3-D tungsten oxide (WO3) microflower was synthesized via low-cost and environmental-friendly hydrothermal strategy. The effect of structure-directing agent on the formation of 3-D microflowers from a 2-D nanosheets of WO3 and its gas sensing behavior are investigated. The assynthesized WO3 powder was used in morphological, structural and phase studies by X-ray diffraction (XRD), scanning electron microscopy (SEM), FT-Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The WO3 samples were found to be polycrystalline with monoclinic crystal structure. The SEM micrographs revealed the formation of 3-D microflowers made up of two-dimensional (2-D) multi-directional dendritic nanoplates. The potassium hydroxide (KOH) acts as a structure-directing agent in the formation of 3-D microflowers of WO3 sample. To further understand the formation of 3-D microflowers of WO3 sample, concentration-dependent experiments were carried out by varying KOH concentration and the formation mechanism was investigated. The synthesized WO3 microstructures were subjected to detailed gas sensing tests for different gases at an optimized temperature. A selective, sensitive gas response was obtained for WO3 gas sensor. The lower detection limit is about 1 ppm at 150 degrees C working temperature for an optimized WO3 gas sensor. The gas sensing results indicate that the 3-D microflower-like WO3 nanostructures are highly promising for applications as gas sensors. (C) 2020 Published by Elsevier B.V.

10aMicroflowers10aNO2 detection10aWO31 aBeknalkar, S., A.1 aPatil, V., L.1 aHarale, N., S.1 aSuryawanshi, M., P.1 aPatil, A., P.1 aPatil, V., B.1 aKim, J., H.1 aPatil, P., S. uhttps://library.ncl.res.in/content/2-d-3-d-conversion-wo3-nanostructures-using-structure-directing-agent-enhanced-no2-gas02321nas a2200277 4500008004100000022001400041245012700055210006900182260000900251300001100260490000800271520138700279653001901666653002801685653003101713653002001744653002901764653001501793653001001808100002201818700001701840700001901857700001701876700001801893856013201911 2021 eng d a0925-838800aConstruction of IrO2@Mn3O4 core-shell heterostructured nanocomposites for high performance symmetric supercapacitor device0 aConstruction of IrO2Mn3O4 coreshell heterostructured nanocomposi cDEC  a1613280 v8873 aIn the present work, we have designed and synthesized nanocomposite of IrO2@Mn3O4 with two-step simple and scalable chemical routes. In this route, nanofibers of IrO2 were synthesized by a single nozzle electrospinning technique onto which Mn3O4 was overlaid by a simple SILAR route. The ratio of Mn3O4 and IrO2 was varied by varying the SILAR cycles onto electrospun IrO2 thin film as 20, 40, 60, and 80 cycles. The structural, morphological, and energy storage performance of IrO2@Mn3O4 composite elec-trodes were investigated. A 2 V kinetic potential with a rectangular-shaped cyclic voltammogram was observed for the IrO2@Mn3O4 electrodes. Moreover, the specific capacitance of 1027 F/g at 1 mA/cm(2) was observed for the optimized electrode which is superior as compared with other electrodes. The opti-mized electrode showed better current and voltage than the individual compounds which might be due to the synergic effect of IrO2 and Mn3O4. Finally, a PVA-LiClO4 gel electrolyte-based solid-state IrO2@ Mn3O4//IrO2@Mn3O4 symmetric device was fabricated. The symmetric device possessed an energy density of 81 Wh/kg with a power delivery of 714 W/kg which was capable to light up a green LED. Hence, the 2D transition metal oxides laminated on 1D metal oxides with high conductivity can be promising electrodes for future research. (C) 2021 Elsevier B.V. All rights reserved.10aAnd nanoflakes10aCharge storage kinetics10aElectrochemical properties10aelectrospinning10aIrO2@Mn3O4 nanocomposite10ananofibers10aSILAR1 aBeknalkar, S., A.1 aTeli, A., M.1 aHarale, N., S.1 aShin, J., C.1 aPatil, P., S. uhttps://library.ncl.res.in/content/construction-iro2mn3o4-core-shell-heterostructured-nanocomposites-high-performance-symmetric02169nas a2200253 4500008004100000022001400041245013500055210006900190260000900259300001100268490000800279520127900287653002401566653003601590653002901626100002201655700001701677700001901694700001801713700001801731700001701749700001801766856013101784 2021 eng d a0169-433200aFabrication of high energy density supercapacitor device based on hollow iridium oxide nanofibers by single nozzle electrospinning0 aFabrication of high energy density supercapacitor device based o cAPR  a1491020 v5463 a

Herein, we have synthesized iridium oxide (IrO2) nanofibers using electrospinning technique and optimization of annealing temperature is undertaken in order to obtain high quality IrO2 nanofibers. The annealing temperature is varied as 200, 300, 400 and 500 degrees C. The synthesized material has hollow nanofibrous morphology with average diameter similar to 45 nm. The formed nanofibers are amorphous in nature. The X-ray Photoelectron Spectroscopy (XPS) result revealed that synthesized iridium is in +4 oxidation state. The electrochemical performance of IrO2 electrodes showed 2 V potential window in three electrode system using 1 M Sodium sulphate (Na2SO4) aqueous electrolyte. The maximum specific capacitance is obtained for sample annealed at 400 degrees C (705F/g at 1 mA/cm(2)) which is due to the well-developed morphology with complete removal of polymer content. Moreover, a novel solid state symmetric IrO2/IrO2 supercapacitor with a high operating voltage of 2 V is built. The symmetric supercapacitor exhibits an energy density of 59 Wh/kg at a power density of 714 W/kg and an excellent cycling stability. These results demonstrate the potentialities of using IrO2 for symmetric supercapacitor for building high energy and power density devices.

10aAqueous electrolyte10aHollow iridium oxide nanofibers10aSymmetric supercapacitor1 aBeknalkar, S., A.1 aTeli, A., M.1 aHarale, N., S.1 aPatil, D., S.1 aPawar, S., A.1 aShin, J., C.1 aPatil, P., S. uhttps://library.ncl.res.in/content/fabrication-high-energy-density-supercapacitor-device-based-hollow-iridium-oxide-nanofibers01997nas a2200277 4500008004100000022001400041245015300055210006900208260000900277300001600286490000700302520105300309653002001362653002801382653001501410653001001425653003301435100002201468700001701490700001901507700001801526700001801544700001701562700001801579856012201597 2021 eng d a0272-884200aHierarchical ITO nanofibers coated Mn3O(4) nanoplates core-shell nanocomposites for high performance all-solid-state symmetric supercapacitor device0 aHierarchical ITO nanofibers coated Mn3O4 nanoplates coreshell na cNOV  a29771-297850 v473 aWe have made a first attempt to build a novel Tin doped indium oxide@Manganese oxide (ITO@Mn3O4) nanocomposite electrode to overcome the detriments of Mn3O4 such as low conductivity and small potential window. Herein, we have synthesized the ITO@Mn3O4 nanocomposite by growing Mn3O4 nanoplates over ITO nanofibers synthesized by electrospinning technique. Benefitted from, the high conductivity and negative operating potential window of ITO exceptionally increased in the electrochemical performance of ITO@Mn3O4 was observed. The specific capacitance of optimized ITO@Mn3O4 nanocomposite reached up to 823 F/g at 1 mA/ cm2 in a wide potential window of 2 V using Na2SO4 electrolyte. To determine the practical feasibility an ITO@Mn3O4//ITO@Mn3O4 all-solid-state symmetric device was developed, which operated very well in a 2.2 V voltage window. It was found to deliver a maximum energy density of 88 Wh/kg and a power density of 550 W/ kg. This novel composite inferred the significance of using simple design to build a high-performance device.10aelectrospinning10aITO@Mn3O4 nanocomposite10aPVA-LiClO410aSILAR10aSolid-state symmetric device1 aBeknalkar, S., A.1 aTeli, A., M.1 aHarale, N., S.1 aPawar, K., K.1 aPatil, D., S.1 aShin, J., C.1 aPatil, P., S. uhttps://library.ncl.res.in/content/hierarchical-ito-nanofibers-coated-mn3o4-nanoplates-core-shell-nanocomposites-high15484nas a2200205 45000080041000002450110000412100069001512600008002203000012002284900007002405201477800247100002215025700001715047700001915064700001815083700001815101700001715119700001815136856012415154 2021 eng d00aSupercapacitive performance of SILAR grown Mn3O4 nanoclusters: effect of cationic precursor concentration0 aSupercapacitive performance of SILAR grown Mn3O4 nanoclusters ef cAUG a145-1580 v723 a

Herein, we have investigated the effect of cationic precursor (manganese chloride tetrahydrate) concentration on the electrochemical performance of successive ionic layer adsorption and reaction (SILAR)-deposited Mn3O4 thin films. The concentration of the cationic precursor was varied from 0.05 to 0.15 M, and its effect on physicochemical and electrochemical properties was studied. X-ray diffraction and X-ray photoelectron spectroscopy analyses confirmed that Mn3O4 has a tetragonal structure with Mn2+ and Mn3+ oxidation states. SEM micrographs revealed that nanoclusters of Mn3O4 with an average size of ~200 nm were formed. Moreover, transmission electron microscopy analysis revealed that these nanoclusters were formed from tiny square nanoplates with a size of ~40 nm. Electrochemical studies of the synthesized Mn3O4 thin films were recorded in a three-electrode system, which suggests that 0.1 M cationic precursor concentration has a good electrochemical signature with a specific capacitance of 470 F/g at 1 mA/cm2 current density in 1 M Na2SO4 aqueous electrolyte. The cyclic stability offered was appreciable, with capacitive retention of 75% up to 10,000 CV cycles scanned at 100 mV/s. The charge storage kinetics of the SILAR-grown Mn3O4 thin film were investigated. With systematic study we concluded that, the molarity of the cationic precursor plays a vital role in the porosity and microstructure which drastically affects the electrochemical performance.

1 aBeknalkar, S., A.1 aTeli, A., M.1 aHarale, N., S.1 aPatil, D., S.1 aSutar, J., R.1 aShin, J., C.1 aPatil, P., S. uhttps://library.ncl.res.in/content/supercapacitive-performance-silar-grown-mn3o4-nanoclusters-effect-cationic-precursor