NSRRC Activity Report 2022

Chemical Science 025 facilitates direct electron transfer, while GONRs with nanopores offer a high surface area to store a large number of ions, thus enhancing the double-layer capacitance. As a result, the NP-MWCNT@GONR exhibits a considerably higher capacity, rate performance, energy density, and power density as a cathode material in a Zn-ion liquid electrolyte than the MWCNT and MWCNT@GONR. The NP-MWCNT@GONR in 3 M Zn(CF 3 SO 3 ) liquid electrolyte exhibited a high energy density of 90.09 Wh kg −1 at 95 W kg −1 and high power density of 19 kW kg −1 at 30.55 Wh kg −1 , with the capacity Fig. 1 : (b) Synthesis of the NP-MWCNT@GONR. [Reproduced from Ref. 10] Fig. 2 : In situ TXM images of the Zn foil anode at 5 A g −1 in (a) NP-MWCNT@GONR//Zn with a liquid electrolyte, (b) NP-MWCNT@GONR//Zn@NP- MWCNT@GONR with a liquid electrolyte, and (c) NP-MWCNT@GONR//Zn gel electrolyte before and after 10 cycles. In situ TXM images of dendrite growth on the Zn foil at 1 A g −1 in the (d) liquid and (e) gel electrolytes. [Reproduced from Ref. 10]