Local Polarity Engineering via Unsaturated Cu–N 3 Sites for Enhanced Iodine Redox Chemistry in Zinc‐Iodine Batteries
Beijing University of Chemical Technology
Abstract
Abstract Rational engineering of the local microenvironment in catalytic host materials is pivotal for high‐performance zinc‐iodine batteries, as it governs iodine species adsorption, accelerates redox kinetics, and suppresses polyiodides shuttling. Herein, we propose a local polarity engineering strategy by incorporating unsaturated Cu–N 3 sites into carbon matrix to construct polarized microenvironments and promote iodine redox chemistry. Combined theoretical and experimental analyses reveal that the unsaturated coordination of Cu atoms induces intrinsic local polarity, which enhances charge redistribution, lowers the activation barrier of the I 2 /I − redox reaction, and strengthens electronic coupling with…
Citation impact
- FWCI
- 24.91
- Percentile
- 99%
- References
- 42
Authors
9- YMYangjun Ma
Beijing University of Chemical Technology
- XMXiangtong MengCorresponding
Beijing University of Chemical Technology
- XWXiaoying Wang
Beijing University of Chemical Technology
- YDYadong Du
Beijing University of Chemical Technology
- JQJun Qi
Beijing University of Chemical Technology
Topics & keywords
- Redox
- Polarity (international relations)
- Catalysis
- Rational design
- Electrode
- Electrochemistry
- Carbon fibers
- Cathode