贵金属
阴极
材料科学
电池(电)
金属
纳米技术
光电子学
化学工程
无机化学
电气工程
热力学
冶金
化学
工程类
功率(物理)
物理
作者
Chang Guo,Fuli Zhang,Han Xiao,Lipeng Zhang,Qian Hou,Lele Gong,Jincheng Wang,Zhenhai Xia,Jianhua Hao,Keyu Xie
标识
DOI:10.1002/adma.202302325
摘要
Abstract To date, the effect of noble metal (NM) electronic structures on CO 2 reaction activity remains unknown, and explicit screening criteria are still lacking for designing highly efficient catalysts in CO 2 ‐breathing batteries. Herein, by preferentially considering the decomposition of key intermediate Li 2 CO 3 , an intrinsic descriptor constituted of the orbital states and the electronegativity for predicting high‐performance cathode material are discovered. As a demonstration, a series of graphene‐supported noble metals (NM@G) as cathodes are fabricated via a fast laser scribing technique. Consistent with the preliminary prediction, Pd@G exhibits an ultralow overpotential (0.41 V), along with superior cycling performance up to 1400 h. Moreover, the overall thermodynamic reaction pathways on NM@G confirm the reliability of the established intrinsic descriptor. This basic finding of the relationship between the electronic properties of noble metal cathodes and the performance of Li‐CO 2 batteries provides a novel avenue for designing remarkably efficient cathode materials for metal‐CO 2 batteries.
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