Synergistic recycling and conversion of spent Li-ion battery leachate into highly efficient oxygen evolution catalysts

Chen, Zhijie1; Zou, Wensong1; Zheng, Renji1; Wei, Wenfei1; Wei, Wei2; Ni, Bing-Jie2; Chen, Hong1

2021-07-01

10.1039/d1gc01578h

GREEN CHEMISTRY   影响因子和分区

1463-9262

1463-9270

Converting spent Li-ion batteries (LIBs) into highly efficient energy conversion catalysts in a facile manner is a win-win strategy in addressing the metal resources shortage and clean energy problems. Herein, we employed a one-pot boriding strategy to turn the spent LiNiCoMnO2 batteries into magnetic mixed metallic borides (NiCoMnBs) for efficient oxygen evolution reaction (OER). A metal ion recovery rate of 99.91%, 99.92%, and 99.84% has been achieved for Ni, Co and Mn, respectively. The optimized catalyst demonstrates a highly competitive OER activity, and only an overpotential of 372 mV is required to drive the high current density of 500 mA cm(-2), surpassing many other Ni, Co, Mn mono-, bi- or tri-metallic OER catalysts as well as the commercial RuO2 catalyst. Detailed mechanism studies suggest that the superior OER performance is mainly ascribed to B etching induced in situ generation of the core@shell structured tri-metal borides@(oxy)hydroxides nanostructures during the water oxidation process. Fast charge-transfer kinetics and the hierarchical amorphous/nanocrystalline structure with rich catalytic active sites are also aiding the high activity. The boriding strategy reported here can be further applied to synergistically recycle and regenerate efficient electroactive materials from other metal-rich wastes for achieving a sustainable energy future.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[61875119,21777045] ; Australian Research Council (ARC) Future Fellowship[FT160100195] ; Foundation of Shenzhen Science, Technology and Innovation Commission (SSTIC)["JCYJ20190809144409460","JCYJ20200109141625078"] ; Natural Science Funds for Distinguished Young Scholar of Guangdong Province, China[2020B151502094]

Chemistry ; Science & Technology - Other Topics

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology

WOS:000683072800001

ROYAL SOC CHEMISTRY

20213710878287

Borides ; Boriding ; Catalysts ; Charge transfer ; Charging (batteries) ; Conversion efficiency ; Electronic Waste ; Etching ; Lithium compounds ; Manganese compounds ; Metal ions ; Metal recovery ; Metals ; Nickel compounds ; Oxygen ; Recycling ; Ruthenium compounds

Industrial Wastes:452.3 ; Energy Conversion Issues:525.5 ; Metallurgy:531.1 ; Heat Treatment Processes:537.1 ; Secondary Batteries:702.1.2 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen Key Lab Interfacial Sci & Engn Mat SKLIS, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
2.Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Sydney, NSW 2007, Australia

Chen, Zhijie,Zou, Wensong,Zheng, Renji,et al. Synergistic recycling and conversion of spent Li-ion battery leachate into highly efficient oxygen evolution catalysts[J]. GREEN CHEMISTRY,2021,23:6538-6547.

Chen, Zhijie.,Zou, Wensong.,Zheng, Renji.,Wei, Wenfei.,Wei, Wei.,...&Chen, Hong.(2021).Synergistic recycling and conversion of spent Li-ion battery leachate into highly efficient oxygen evolution catalysts.GREEN CHEMISTRY,23,6538-6547.

Chen, Zhijie,et al."Synergistic recycling and conversion of spent Li-ion battery leachate into highly efficient oxygen evolution catalysts".GREEN CHEMISTRY 23(2021):6538-6547.