Rational Design of Nanostructured Metal/C Interface in 3D Self‐Supporting Cellulose Carbon Aerogel Facilitating High‐Performance Li‐CO2 Batteries

• DOI: 10.1002/aenm.202103681
• Publication Date: 2022-04-12T02:25:05Z
• Authors: Limin Liu; Yanyang Qin; Ke Wang; Heng Mao; Hu Wu; Wei Yu; Dongyang Zhang; Hongyang Zhao; Hairong Wang; Jiuhong Wang; Chunhui Xiao; Yaqiong Su; Shujiang Ding
• Keywords: Carbon fibers; Rational design

Abstract The sluggish kinetics of CO 2 reduction and evolution reaction (CRR CER) on the Li–CO battery cathode seriously hindered its practical application. Rational design Ru/C interface is expected to simultaneously decrease free energy barrier intermediate species create a favorable electronic structure, effectively promoting catalytic CRR CER. Herein, 3D self‐supporting cellulose carbon aerogel (CCA) with well‐defined interfaces (Ru@CCA) synthesized as an advanced ‐breathing for batteries. results show that efficiency significantly improves 80% high discharge capacity 10.71 mA h cm −2 at 20 µA , excellent cyclic stability 421 cycles 100 . These outstanding performances are highly competitive compared state‐of‐art cathodes. In addition, unique strategy applied other non‐noble metal@CCA cathodes, which confirms advantages constructing nanostructure metal/C improving This fundamental understanding structure–performance relationship provides new inspiration designing efficient catalysts