02037nas a2200229   4500008004100000022001400041245013100055210006900186260000800255490000700263520119300270653003701463653001201500653002001512653002701532100002301559700002101582700002301603700002201626700002801648856013101676       2023                        eng d  a1861-472800aCarbon encapsulated NiCo2S4 nanoparticles with enhanced surface mediated charge storage for superior ultracapacitor electrodes0 aCarbon encapsulated NiCo2S4 nanoparticles with enhanced surface   cAPR0 v183 a<p>
	Three different compositions of NiCo2S4 (NCS) materials were prepared using three solvents, named NCS HTDI (hydrothermal in DI water), NCS STEG (solvothermal in ethylene glycol), and a novel carbon-encapsulated NCS STFA (solvothermal in formamide). The structural and morphological properties of the prepared NCS HTDI, NCS STEG, and NCS HTDI materials were analyzed using various physical characterization techniques. As prepared, NCS materials were tested as an electrode for supercapacitor (SC) application using a 3-electrode system in a basic electrolyte (3 M KOH). NCS HTDI exhibits a specific capacitance of 2536 F g(-1), NCS STEG shows 1355 F g(-1), and NCS STFA shows 1178 F g(-1) at an input current density of 1 A g(-1). The SBN-PSC material is utilized as a counter electrode in the NCS STFA || SBN-PSC-based asymmetric SC device. The device exhibits exceptionally superior electrochemical performance with a specific capacitance of 172 F g(-1) at 10 A g(-1) input current density and 97% capacity retention after 5000 cycles in a voltage window of 1.6 V. The results confirm the superiority of NCS STFA||SBN-PSC deviceas an excellent high-energy and high-power SC.</p>
10aAsymmetric supercapacitor device10aNiCo2S410apseudocapacitor10aSurface charge storage1 aChaturvedi, Vikash1 aPawar, Meenakshi1 aThripuranthaka, M.1 aShivade, Rajkiran1 aShelke, Manjusha, V. V.  uhttps://library.ncl.res.in/content/carbon-encapsulated-nico2s4-nanoparticles-enhanced-surface-mediated-charge-storage-superior02025nas a2200181   4500008004100000022001400041245015500055210006900210260000900279300001600288490000700304520131500311100002201626700002201648700002201670700002101692856013001713       2025                        eng d  a2040-336400aA carbon nanotube wrapped Na3V2(PO4)2F3 cathode with a dual cation electrolyte: enhancing high-voltage stability and cyclability in zinc-ion batteries0 acarbon nanotube wrapped Na3V2PO42F3 cathode with a dual cation e  cNOV   a25631-256420 v173 a<p>
	Aqueous zinc-ion batteries (ZIBs) offer several compelling advantages as a safer and sustainable energy storage system. Polyanion-based cathodes, characterized by their comparatively higher voltage and structural stability, are promising for ZIBs. However, challenges hinder their practical applications, such as inferior rate capability and limited cycling stability. In this study, we constructed a carbon nanotube wrapped Na3V2(PO4)2F3 (NVPF-CNT) cathode integrated with a highly concentrated dual cation electrolyte (DCE) to enhance the electrochemical performance of ZIBs by enabling a synergistic Na+ and Zn2+ co-insertion mechanism. The DCE effectively regulates the solvation structure, stabilizes the solid electrolyte interface (SEI), minimizes free water molecules, thereby widening the electrochemical window and reducing the side reactions, and inhibits cathode dissolution. Consequently, the CNT-wrapped NVPF cathode exhibits an initial reversible capacity of 131.3 mAh g-1 at 0.05 A g-1, and retains 84% of its capacity over 500 cycles at 1 A g-1, with a nominal voltage of similar to 1.5 V. This approach offers valuable insights into the potential of CNT-wrapped NVPF cathodes in combination with a DCE while providing a comprehensive framework for advancing high-performance ZIBs.</p>
1 aPandey, Priyanshi1 aShivade, Rajkiran1 aDeshmukh, Ashvini1 aShelke, Manjusha  uhttps://library.ncl.res.in/content/carbon-nanotube-wrapped-na3v2po42f3-cathode-dual-cation-electrolyte-enhancing-high-voltage