journal article·2021-10-08Open access

Wood Carbon Based Single-Atom Catalyst for Rechargeable Zn–Air Batteries

Linxin Zhong, Chengyu Jiang, Mengting Zheng, Xinwen Peng, Tongchao Liu, Shibo Xi, Xiao Chi, Qinghua Zhang, Lin Gu, Shanqing Zhang, Ge Shi, Lei Zhang, Kunze Wu, Zehong Chen, Tingzhen Li, Mouad Dahbi, Jones Alami, Khalil Amine, Jun Lu

ACS Energy Letters· Volume 6· Issue 10

Abstract

Low-cost and efficient oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) bifunctional electrocatalysts are vital for the applications of rechargeable Zn–air batteries (ZABs). Given the high catalytic activity of single-atom catalysts (SACs), preparing SACs on a large scale for ZABs is desirable but remains challenging. Herein, in situ formation of single-atom Fe–N–C catalysts on plate wood-based porous carbon is achieved via a facile Lewis acid pretreatment and carbonization process. Lewis acid FeCl3 pretreatment on the cell wall of wood not only produces abundant microchannels but also successfully introduces atomically dispersed Fe–N active species into the hierarchical structure. Such uniformly dispersive SACs on the hierarchical structure enhance the ORR/OER performance and durability. A ZAB using the catalyst in the cathode shows a high power density (70.2 mW cm–2, at quasi solid state) and long-term stability. This work provides a new path for the large-scale preparation of high-performance SACs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, People’s Republic of China

Centre for Clean Environment and Energy and Griffith School of Environment, Griffith University, Gold Coast, Queensland 4222, Australia

Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States

Institute of Chemical and Engineering Sciences, A*STAR, Fusionopolis Way, #20-10, Connexis North Tower, 138632, Singapore

Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, 117543, Singapore

Songshan Lake Materials Laboratory, Dongguan, Guandong 523808, People’s Republic of China

Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco

Material Science and Engineering, Stanford University, Stanford, California 94305 United States

Funding

China Postdoctoral Science Foundation · National Natural Science Foundation of China · State Key Laboratory of Pulp and Paper Engineering, South China University of Technology · Guangzhou Science and Technology Funds

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