02056nas a2200241   4500008004100000022001400041245014000055210006900195260000800264300001400272490000600286520118400292653003001476653002401506653001901530653002001549100002101569700002901590700001801619700002401637700002601661856012701687       2019                        eng d  a2168-048500aFacile production of mesoporous WO3-rGO hybrids for high-performance supercapacitor electrodes: an experimental and computational study0 aFacile production of mesoporous WO3rGO hybrids for highperforman  cJAN  a2350-23590 v73 a<p>This work explored a promising supercapacitor electrode material (WO3-rGO hybrids) synthesized via a simplistic one-pot hydrothermal synthesis route. Various analytical studies (X-ray diffraction study, Raman spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller analysis) were employed in furtherance to explore the structural, morphological, compositional, and surface areal properties of the prepared materials. The enhancement in electrochemical supercapacitive properties were evaluated from pure hexagonal phase WO3 to the various hybrids, depending on the concentration of GO introduced into it, using cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy. The WG-80 composite revealed the high rise in capacitance value of 801.6 F/g overcoming the individual capacitance of rGO (71.11 F/g) and WO3 (94.22 F/g) at a current density of 4 A/g with good cycling stability (75.7%) over 5000 cycles. We have presented quantum capacitance from ab initio calculations and provided theoretical explanation from the orbital interactions.</p>10aDensity functional theory10aHydrothermal method10asupercapacitor10aWO3-rGO hybrids1 aSamal, Rutuparna1 aChakraborty, Brahmananda1 aSaxena, Manav1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/facile-production-mesoporous-wo3-rgo-hybrids-high-performance-supercapacitor-electrodes02119nas a2200289   4500008004100000245006900041210006800110260000800178300001400186490000600200520126400206653001101470653001401481653002101495653001501516653001401531653001301545100001801558700002201576700002201598700001901620700002601639700001801665700002301683700002301706856010001729       2021                        eng d00aCo-decorated tellurium nanotubes for energy storage applications0 aCodecorated tellurium nanotubes for energy storage applications  cSEP  a9008-90210 v43 aThis paper explicitly discusses the synthesis of Co-decorated Te nanotubes (NTs) using Te NTs as the sacrificial template and the evaluation of their electrochemical performance. First, one-dimensional (1D) Te NTs were synthesized and characterized by spectroscopic and microscopic tools such as UV-visible spectroscopy, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray spectroscopy analyses. The as-prepared hexagonal Te NTs (h-Te NTs) possess diameters of about 35 +/- 5 nm and lengths of about 500 +/- 50 nm and were used for the synthesis of Co-decorated Te NTs. The 1D nanostructure with excellent conductivity enables the material to show excellent electrochemical performance. The asymmetric assembly of the CoTe-2//AC electrode material displayed a high specific capacitance of 147 F g(-1) (specific capacity, 162 C g(-1) at a current density of 2 A g(-1) in 4 M KOH electrolyte. In addition to that, the assembly of CoTe-2//AC achieved an excellent energy density of 51.1 W h kg(-1) at a power density of 2294 W kg(-1) and confirmed the as-synthesized Co-decorated Te NTs to be an excellent electrode material.10acobalt10ananotubes10apseudocapacitors10asurfactant10aTellurium10atemplate1 aBhol, Prangya1 aSwain, Swarnalata1 aJena, Satyaranjan1 aBhatte, Kushal1 aRout, Chandra, Sekhar1 aSaxena, Manav1 aJadhav, Arvind, H.1 aSamal, Akshaya, K.  uhttps://library.ncl.res.in/content/co-decorated-tellurium-nanotubes-energy-storage-applications