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-high02818nas a2200265   4500008004100000022001400041245018000055210006900235260000900304300001600313490000700329520179300336653002502129653002102154653002002175653004002195653002202235100003002257700002802287700003202315700002202347700002302369700002802392856013202420       2019                        eng d  a1944-824400aHigh-energy flexible supercapacitor-synergistic effects of polyhydroquinone and RuO2 center dot xH(2)O with microsized, few-layered, self-supportive exfoliated-graphite sheets0 aHighenergy flexible supercapacitorsynergistic effects of polyhyd  cMAY   a18349-183600 v113 a<p>An effective and straightforward route for tailoring the self-supporting, exfoliated flexible graphite substrate (E-FGS) using electrochemical anodization is proposed. E-FGS has essential features of highly exfoliated, few-layered, two-dimensional graphite sheets with the size of several tens of micrometers, interconnected along the axis of the substrate surface. The novel hierarchical porous structural morphology of E-FGS enables large active sites for efficient electrolyte ion and charge transport when used as electrode material for a supercapacitor. In order to effectively utilize this promising E-FGS electrode for energy storage purpose, a ternary composite is further synthesized with pseudocapacitive polyhydroquinone (PHQ) and hydrous RuO2 (hRO). hRO is synthesized via a sol-gel route, while electropolymerization is utilized for the electrodeposition of PHQ over E-FGS. Ultimately, the fabricated self-supporting E-FGS-based flexible supercapacitor is capable of delivering areal specific capacitance values as high as 378 mF cm(-2) at a current density of 1 mA cm(-2). Addition of the pseudocapacitive component to the E-FGS texture leads to similar to 10 times increase of the electrochemical charge storage capability. The imposition of mechanical forces to this flexible supercapacitor device results in trivial changes in electrochemical properties and is still capable of retaining 91% of the initial specific capacitance after 10 000 cycles. Alongside, the fabricated symmetrical solid-state flexible device exhibited a high energy density of 8.4 mu Wh cm(-2). The excellent performance along with the ease of synthesis and fabrication process of the flexible solid-state supercapacitor device using PHQ/hRO/E-FGS holds promise for large-scale production.</p>
10agraphite exfoliation10apolyhydroquinone10aruthenium oxide10asolid-state flexible supercapacitor10aTernary Composite1 aMuniraj, Vedi, Kuyil Azha1 aDwivedi, Pravin, Kumari1 aTamhane, Parikshit, Shivaji1 aSzunerits, Sabine1 aBoukherroub, Rabah1 aShelke, Manjusha, Vilas  uhttps://library.ncl.res.in/content/high-energy-flexible-supercapacitor-synergistic-effects-polyhydroquinone-and-ruo2-center-dot