文献类型：期刊文献

英文题名：Recycling Spent Ternary Cathodes to Oxygen Evolution Catalysts for Pure Water Anion-Exchange Membrane Electrolysis

作者：Zhang, Liyue[1,2];Xu, Qiucheng[2,3];Wen, Shuting[1];Zhang, Haoxuan[1];Chen, Ling[1];Jiang, Hao[1];Li, Chunzhong[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Key Lab Ultrafine Mat, Sch Mat Sci & Engn,Minist Educ, Shanghai 200237, Peoples R China;[2]Ecole Polytech Fed Lausanne EPFL, Inst Chem Sci & Engn, Lab Inorgan Synth & Catalysis, CH-1015 Lausanne, Switzerland;[3]Tech Univ Denmark, Dept Phys, Sect Surface Phys & Catalysis SurfCat, DK-2800 Lyngby, Denmark

年份：2024

卷号：18

期号：33

起止页码：22454

外文期刊名：ACS NANO

收录：;EI(收录号：20243316882543);WOS:【SCI-EXPANDED(收录号:WOS:001289880800001)】；

基金：This work was supported by the National Natural Science Foundation of China (22208102) and the Fundamental Research Funds for the Central Universities. Thanks to Chao Wei for the discussion on the S-number. Thanks to Chaofan Wang for training on the Raman spectrometer.

语种：英文

外文关键词：water electrolysis; anion-exchange membrane; OER; LIBs recycle; spent ternary cathode

摘要：Recycling spent lithium-ion batteries (LIBs) to efficient water-splitting electrocatalysts is a promising and sustainable technology route for green hydrogen production by renewables. In this work, a fluorinated ternary metal oxide (F-TMO) derived from spent LIBs was successfully converted to a robust water oxidation catalyst for pure water electrolysis by utilizing an anion-exchange membrane. The optimized catalyst delivered a high current density of 3.0 A cm(-2) at only 2.56 V and a durability of >300 h at 0.5 A cm(-2), surpassing the noble-metal IrO2 catalyst. Such excellent performance benefits from an artificially endowed interface layer on the F-TMO, which renders the exposure of active metal (oxy)hydroxide sites with a stabilized configuration during pure water operation. Compared to other metal oxides (i.e., NiO, Co3O4, MnO2), F-TMO possesses a higher stability number of 2.4 x 10(6), indicating its strong potential for industrial applications. This work provides a feasible way of recycling waste LIBs to valuable electrocatalysts.