Fast decomposition of Li_(2)CO_(3)/C actuated by singleatom catalysts for Li-CO_(2) batteries
作者机构：School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China
基 金：supported by the National Natural Science Foundation of China (52034011) the Key R&D Program of Shaanxi (2019ZDLGY04-05) the National Natural Science Foundation of Shaanxi (2020JQ-189, 2019JLM-29 and 2019JLZ-01) the Fundamental Research Funds for the Central Universities (G2020KY05129) the Research Fund of the State Key Laboratory of Solidification Processing (NPU),China (2020-BJ-03 and 2019-TS-06)
出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)
年 卷 期：2021年第64卷第9期
页 码：2139-2147页
摘 要：Lithium carbon dioxide(Li-CO_(2))batteries deliver a theoretical energy density of 1876 W h kg^(-1) in terms of effective utilization of greenhouse *** battery system is considered to be an encouraging electrochemical energy storage device and a promising alternative to Li-ion ***,the main drawback of Li-CO_(2) batteries is their accumulative discharge product of Li_(2)CO_(3)/C,which leads to large overpotential and poor cycling ***,specific and efficient catalysts must be explored to enhance the decomposition of Li_(2)CO_(3)/***-atom catalysts(SACs)are regarded as promising heterogeneous catalysts owing to their maximized utilization of metal atoms and strong interfacial electronic ***,single-metal atoms of Fe,Co,and Ni uniformly anchored on N-doped reduced graphene oxide(rGO),designated as Fe_(1)/N-rGO,Co1/N-rGO,and Ni_(1)/N-r GO,respectively,are designed and fabricated to investigate their catalytic activity toward the decomposition of Li_(2)CO_(3)/*** them,Fe_(1)/N-rGO delivers a high discharge capacity of 16,835 mA h g^(-1) at 100 mA g^(-1) and maintains stability for more than 170 cycles with a discharge voltage of 2.30 V at 400 mA g^(-1).Therefore,this catalysts are overwhelmingly superior to other *** work reveals the advances of SACs in Li-CO_(2) batteries and offers an effective method for realizing high-performance Li-CO_(2) batteries.
主 题 词：Li-CO_(2)batteries single-atom catalysts Li_(2)CO_(3)/C interfacial electronic interaction M-N-C bonds
学科分类：0808[工学-自动化类] 081705[081705] 08[工学] 0817[工学-轻工类]
核心收录：
D O I：10.1007/s40843-020-1638-6
馆 藏 号：203103166...
