01760nas a2200229   4500008004100000022001400041245007600055210006900131260007300200300001400273490000700287520096700294653001801261653001101279653001901290653001201309100002501321700002401346700002801370700002201398856011001420       2008                        eng d  a0167-577X00aFacile synthesis and gas sensing properties of nanotriangular tin oxide0 aFacile synthesis and gas sensing properties of nanotriangular ti  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcNOV  a4328-43310 v623 a<p>In the present study we report a simple and convenient chemical route using pentaerythritol as a structure-directing agent for the synthesis of crystalline nanotriangular SnO2. We propose the scheme for the formation of nanotriangular structures wherein the preliminary spherical nanocrystallites are formed due to the low surface energy associated with them. These spherical nanocrystallites grow into the various linear intermediate shapes like Y, bi and tripods, which finally lead to the triangles, pyramids and bipyramids. Such variation in the structure occurs due to the structure directing pentaerythritol. These polycrystalline SnO2 nanomaterials with structural peculiarities were tested for the gas sensing characteristics. Their response towards ethanol vapor, H-2 and LPG were investigated. It was found to exhibit high response towards ethanol vapors at the operating temperature of 250 degrees C. (C) 2008 Elsevier B.V. All rights reserved.</p>10aNanomaterials10aOxides10aSemiconductors10asensors1 aDeshmukh, Rupali, G.1 aBadadhe, Satish, S.1 aVaishampayan, Mukta, V.1 aMulla, Imtiaz, S.  uhttps://library.ncl.res.in/content/facile-synthesis-and-gas-sensing-properties-nanotriangular-tin-oxide-002353nas a2200241   4500008004100000022001400041245009800055210006900153260000900222300001100231490000800242520156000250653002101810653002001831653001901851653001801870653000801888100002401896700001801920700002401938700002301962856012601985       2022                        eng d  a0925-838800aFacile synthesis of nanocomposites of CNF-Sn and C-Sn microspheres: Prospective field emitter0 aFacile synthesis of nanocomposites of CNFSn and CSn microspheres  cJUN   a1643180 v9073 a<p>
	We report synthesis of Carbon nanofibers (CNFs) and hybrid nanocomposites namely, CNF-Sn and C-Sn microspheres using simple electrospinning technique, followed by annealing in controlled atmosphere. The as-prepared materials were characterized using X-raydiffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), Ultra-violet photoelectron spectroscopy (UPS), and Raman spectroscopy to reveal their physico-chemical properties. As carbon family members are potential materials for field emission (FE) based applications, owing to their high aspect ratio FE characteristics of the synthesized materials were explored at base pressure of 1 x 10(-8) mbar. Interestingly, the hybrid nanocomposite CNF-Sn and C-Sn emitters showed improved FE behavior (with the turn-on field of 3.4 and 1.36 V/mu m, respectively) in contrast to the pristine CNFs emitter (turn-on field of 5.4 V/mu m). Furthermore, the maximum emission current density is substantially enhanced, 7.75 and 4.6 mA/cm(2) for CNF-Sn and C-Sn emitters, respectively. The improvement in the FE behavior of nanocomposite emitters is attributed to the combined effect of morphology and modulation of electronic properties at the interface of nanocomposites. The results confirm that FE characteristics of pristine nanostructures can be greatly improved upon formation of their nanocomposites and this approach can be extended to other nanostructures for improving their multi-functionalities. (c) 2022 Elsevier B.V. All rights reserved.</p>
10acarbon nanofiber10aelectrospinning10afield emission10aNanocomposite10aTin1 aBadadhe, Satish, S.1 aYadav, Poonam1 aSuryawanshi, Sachin1 aMore, Mahendra, A.  uhttps://library.ncl.res.in/content/facile-synthesis-nanocomposites-cnf-sn-and-c-sn-microspheres-prospective-field-emitter