2024年6月19日，Elsevier 旗下top期刊《Applied Catalysis B: Environment and Energy》（影响因子：22.1）在线发表了云南师范大学物理与电子信息学院朱挺教授与华中科技大学夏宝玉教授的最新研究成果《Inbuilt photoelectric field of heterostructured cobalt/iron oxides promotes oxygen electrocatalysis for high-energy-efficiency zinc-air batteries》。云南师范大学物理与电子信息学院为第一作者单位，云南师范大学物理与电子信息学院朱挺教授与华中科技大学化学与化工学院夏宝玉教授为共同通讯作者。据悉，这是云南师范大学以第一单位在《Applied Catalysis B: Environment and Energy》前上发表的第一篇研究成果。

https://www.sciencedirect.com/science/article/pii/S0926337324006295

ABSTRACT

The practical application of zinc-air batteries (ZABs) is limited by the large overpotentials generated by the sluggish kinetics of oxygen electrocatalysis at air electrodes. To address this challenge, we report a photocathode composed of Fe2O3/Co3O4 mixed metal oxides for photo-assisted rechargeable ZABs. Owing to the formation of Fe2O3/Co3O4 heterostructures with abundant oxygen vacancies (Vox), the air electrode exhibited a high surface photovoltage (SPV) of 220 mV based on the contact potential difference (CPD) recorded before and after light irradiation, corresponding to a very high specific SPV of 44 kV m-1. Consequently, the photo-rechargeable ZABs incorporating this Fe2O3/Co3O4 air photocathode exhibit a low charge potential of 1.6 V under light irradiation. Furthermore, these ZABs demonstrate a remarkable increase in energy efficiency, from 64% to 78%, coupled with a high specific capacity of 712.3 mAh g-1 and excellent stability over a span of 60 hours. This achievement underscores the potential for harnessing light energy in the next generation of ZABs, suggesting the promise of a brighter future for energy storage technologies.

扩展阅读：

云师大朱挺教授在top期刊《ACS Sustainable Chem. Eng.》上合作发表最新研究成果

朱挺-云南师范大学物理与电子信息学院