01980nas a2200241   4500008004100000022001400041245013400055210006900189260000800258300001400266490000600280520109300286653002101379653002501400653002901425653002201454653002801476100002801504700003001532700002901562700002501591856012201616       2018                        eng d  a2365-654900aNi(OH)(2)-Fe2O3/CNOs ternary nanocomposite designed as an anode with complementary properties for high-performance li-ion battery0 aNiOH2Fe2O3CNOs ternary nanocomposite designed as an anode with c  cFEB  a2286-22920 v33 a<p>Synthesis of the new ternary hybrid composite with excellent electrochemical performances for Li-ion battery is demonstrated. The ternary hybrid composite of Ni(OH)(2)-Fe2O3/Carbon Nano Onions (NFOC) is synthesized by using two-step solution phase method delivers a high reversible discharge capacity of 928 mAhg(-1) at 50 mAg(-1) and 673 mAhg(-1) at a higher current density of 1000 mAg(-1) with excellent rate performance. Additionally, it shows to have stable cycle life up to 1000 cycles with 96% capacity retention and more than 99% of coulombic efficiency. The synergetic effect between Ni(OH)(2), Fe2O3 and carbon nano onions (CNOs) as well as the unique feature of heterostructures are responsible for the improved electrochemical performance of the battery. The reversible reaction of Fe2O3 and Ni(OH)(2) with Li, maintains its long cycle life with higher reversible discharge capacity and CNOs improve the efficient electronic transfer, accommodate substantial volume expansion and maintain the structural integrity of the material during lithiation-delithiation process.</p>10aHeterostructures10aLong cycle stability10aSuperior rate capability10aTernary Composite10aTransition metal oxides1 aDwivedi, Pravin, Kumari1 aMuniraj, Vedi, Kuyil Azha1 aDevarapalli, Rami, Reddy1 aShelke, Manjusha, V.  uhttps://library.ncl.res.in/content/nioh2-fe2o3cnos-ternary-nanocomposite-designed-anode-complementary-properties-high02322nas a2200229   4500008004100000022001400041245009800055210006900153260000800222300001200230520153600242653001001778653001901788653002101807653001301828653002701841100002501868700002501893700002301918700002401941856012701965       2019                        eng d  a1862-630000aRealization of efficient field emitter based on reduced graphene oxide-Bi2S3 heterostructures0 aRealization of efficient field emitter based on reduced graphene  cJUL  a19001213 a<p>Herein, Bi2S3 nanorods and reduced graphene oxide (rGO)-Bi2S3 heterostructures are synthesized using a simple hydrothermal method. The structural, morphological, chemical, and elemental analysis of as-synthesized materials is performed using X-ray diffraction (XRD), Raman spectroscopy, field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Field emission (FE) studies are carried out on both pristine Bi2S3 nanorods and rGO-Bi2S3 heterostructure samples at a base pressure of approximate to 1 x 10(-8) mbar. The results show that the rGO-Bi2S3 heterostructure emitter has superior FE performance compared to pristine Bi2S3 emitters in terms of the turn-on field (2.6 V mu m(-1) at 10 mu A cm(-2)) and threshold field (4.0 V mu m(-1) at 100 mu A cm(-2)) along with a high emission current density of approximate to 1464 mu A cm(-2) at an applied electric field of 7.0 V mu m(-1). The rGO-Bi2S3 heterostructure emitter exhibits very good emission current stability, tested for more than 3 h duration, characterized by standard deviation values approximate to 2.84 and 4.06, corresponding to preset values 12 and 100 mu A. This study implies that one-step hydrothermal route can be efficiently used to synthesize organic-inorganic heterostructures that possess unique morphology. Furthermore, the synthesized rGO-Bi2S3 heterostructure emitter shows potential as an electron source for practical application in vacuum microelectronic devices.</p>
10aBi2S310afield emission10aHeterostructures10aNanorods10aReduced graphene oxide1 aGote, Gorkshnath, H.1 aBhopale, Somnath, R.1 aMore, Mahendra, A.1 aLate, Dattatray, J.  uhttps://library.ncl.res.in/content/realization-efficient-field-emitter-based-reduced-graphene-oxide-bi2s3-heterostructures