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

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.

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-superior01813nas a2200265 4500008004100000022001400041245014000055210006900195260000800264490000700272520083900279653002701118653001001145653003001155653003701185100002501222700003501247700002001282700002601302700002301328700001901351700002201370700002501392856013001417 2023 eng d a2194-428800aTi3C2Tx-Nb2Mo3O14 composite as novel anode to realize high power density combined with high stability in a hybrid lithium-ion capacitor0 aTi3C2TxNb2Mo3O14 composite as novel anode to realize high power  cDEC0 v113 a

Lithium-ion capacitors (LICs), with their higher energy density at high power capability, stand out as the future generation of energy-storage devices. Herein, the nanocomposite of Ti3C2Tx MXene with Nb2Mo3O14 is prepared by a one-step hydrothermal method and studied as an electrode material for LIC. The asfabricated composite MXene niobium molybdenum oxide (MXNMO) achieves a high reversible capacity of 205 mAh g(-1) at 100 mA g(-1) current density with outstanding cyclability. Further, asymmetric LIC full-cell device composed of MXNMO anode with supercapacitor grade activated carbon as a cathode delivers an energy density of 37.8 Wh kg(-1) (0.25 A g(-1)) and a higher power density of 4244 W kg(-1) (5 A g(-1)) along with the excellent durability showing 85% capacitance retention over 4000 cycles at 0.5 A g(-1).

10alithium-ion capacitors10aMXene10aniobium molybdenum oxides10apseudocapacitive anode materials1 aPawar, Meenakshi, D.1 aThripuranthaka, Marulasiddappa1 aPatrike, Apurva1 aDeshmukh, Ashvini, B.1 aChaturvedi, Vikash1 aKrishnan, Arun1 aShivade, Rajkiran1 aShelke, Manjusha, V. uhttps://library.ncl.res.in/content/ti3c2tx-nb2mo3o14-composite-novel-anode-realize-high-power-density-combined-high-stability02025nas 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

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.

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-voltage02305nas a2200349 4500008004100000022001400041245011900055210006900174260000900243490000700252520118800259653000901447653002301456653001301479653002601492653002001518100001701538700002201555700002201577700001901599700001801618700001801636700002801654700002401682700002101706700002001727700002001747700001701767700002501784700001801809856012801827 2025 eng d a1613-681000aZincke-derived viologen covalent organic framework as a high-performance cathode for aqueous zinc-iodine batteries0 aZinckederived viologen covalent organic framework as a highperfo cDEC 0 v213 a

Aqueous zinc-iodine (Zn-I2) batteries are among the most promising energy storage technologies, offering high energy density, low cost, and intrinsic safety. However, their practical deployment is hindered by the polyiodide shuttle effect, leading to rapid capacity fading and poor cycling performance. This work demonstrates the application of a crystalline viologen-based covalent organic framework (TAB-DNP-BP COF), synthesized via a one-pot Zincke reaction, as an efficient iodine host material. The cationic backbone of the TAB-DNP-BP COF effectively confines iodine (I2) species and electrostatically traps polyiodides, suppressing their migration and protecting the zinc anode. Zinc-iodine batteries assembled with an I2-enriched TAB-DNP-BP COF (TAB-DNP-BP COF@I2) cathode deliver a high specific capacity of 337 mAh g-1 at 0.5 C, surpassing the performance of most reported COF-, MOF-, and cage-based systems, while exhibiting excellent cycling stability over 5000 cycles. This work highlights the potential of ionic COFs for stabilizing iodine chemistry and offers a promising strategy toward the development of high-performance, durable aqueous Zn-I2 batteries.

10aiCOF10aiodine confinement10aviologen10azinc-iodine batteries10aZincke reaction1 aDas, Gobinda1 aShivade, Rajkiran1 aPandey, Priyanshi1 aVarghese, Sabu1 aRajput, Nitul1 aMatouk, Zineb1 aMartinez, Jose, Ignacio1 aStraubinger, Rainer1 aBenyettou, Farah1 aGandara, Felipe1 aOlson, Mark, A.1 aAouad, Samer1 aShelke, Manjusha, V.1 aTrabolsi, Ali uhttps://library.ncl.res.in/content/zincke-derived-viologen-covalent-organic-framework-high-performance-cathode-aqueous-zinc