02024nas a2200181   4500008004100000022001400041245015500055210006900210260000900279300001600288490000700304520131500311100002201626700002201648700002201670700002101692856012901713       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  uhttp://library.ncl.res.in/content/carbon-nanotube-wrapped-na3v2po42f3-cathode-dual-cation-electrolyte-enhancing-high-voltage01921nas a2200205   4500008004100000022001400041245010700055210006900162260000900231300001100240490000800251520117900259653003301438653002801471653002101499100002601520700002201546700002501568856012201593       2025                        eng d  a0378-775300aEnhanced oxygen electrocatalysis in zinc-air batteries via a bifunctional bimetallic organic framework0 aEnhanced oxygen electrocatalysis in zincair batteries via a bifu  cDEC   a2384650 v6593 a<p>
	An efficient bifunctional oxygen electrocatalyst, a nickel-iron metal organic framework (NF-MOF) grown within three-dimensional (3D) nitrogen doped porous carbon (NPC) collectively referred as NF-MOF@NPC, is developed as high performance electrocatalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The synergistic effect of bimetallic active sites coupled with conductive nitrogen doped porous carbon matrix, provides chemical stability, abundant active sites, enhanced electron transfer, and improve catalytic activity. NFMOF@NPC exhibits OER onset potential of 1.60 V at current density of 10 mA cm- 2 with Tafel slope of 126 mV dec- 1 and ORR half wave potential of 0.81 V with electron transfer number of 3.91. A zinc-air battery fabricated using NF-MOF@NPC shows peak power density of 102 mW cm-2 and specific capacity of 741 mAh g-Z 1n. It also exhibits remarkable cycling stability for 120 h at current density of 10 mA cm- 2 highlighting its promise as alternative for conventional platinum on carbon (Pt/C) and ruthenium dioxide (RuO2) electrocatalysts demonstrating its potential for next generation energy storage devices.</p>
10aBifunctional Electrocatalyst10aRotating disk electrode10azinc-air battery1 aShivade, Rajkiran, D.1 aPandey, Priyanshi1 aShelke, Manjusha, V.  uhttp://library.ncl.res.in/content/enhanced-oxygen-electrocatalysis-zinc-air-batteries-bifunctional-bimetallic-organic