Issue 18, 2024

Graphene nanoribbons/Ru as efficient cathodic catalysts for high-performance rechargeable Li–CO2 batteries

Abstract

Li–CO2 batteries have emerged as a potential candidate for next-generation energy storage devices due to their impressive theoretical energy density and potential for CO2 capture. However, the practical application of these batteries faces a challenge due to the sluggish CO2 reduction reaction kinetics and Li2CO3 decomposition at the cathode. Herein, graphene nanoribbons decorated with Ru nanoparticles (GNR/Ru) as cathode catalysts are reported, where dispersed Ru nanoparticles on conductive graphene networks are effective in catalyzing CO2 reduction and Li2CO3 decomposition. As a result, the cathode using GNR/Ru catalysts demonstrates a high discharge capacity of 11 470 mA h g−1 at 100 mA g−1 and exhibits excellent long-term stability (more than 1240 hours) with a low overpotential of 1.34 V at a fixed capacity of 500 mA h g−1. This study provides new insights for exploring high-performance cathodic catalysts.

Graphical abstract: Graphene nanoribbons/Ru as efficient cathodic catalysts for high-performance rechargeable Li–CO2 batteries

Supplementary files

Article information

Article type
Paper
Submitted
31 Jan 2024
Accepted
26 Mar 2024
First published
26 Mar 2024

J. Mater. Chem. A, 2024,12, 10713-10725

Graphene nanoribbons/Ru as efficient cathodic catalysts for high-performance rechargeable Li–CO2 batteries

X. Ye, W. Liu, Y. Lu, X. Zheng, Y. Bi, M. Zheng, L. Han, B. Liu, Y. Ning, S. H. M. Jafri, X. Zhao, S. He, S. Zhang and H. Li, J. Mater. Chem. A, 2024, 12, 10713 DOI: 10.1039/D4TA00716F

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