聚苯胺负载镍铁氧化物中催化剂与载体的相互作用以提高可充电锌空气电池的析氧活性

Catalyst-Support Interaction in Polyaniline-Supported NiFe Oxide to Boost Oxygen Evolution Activities for Rechargeable Zn-Air Batteries.

作者信息

Zou Xiaohong, Lu Qian, Tang Mingcong, Wu Jie, Zhang Kouer, Li Wenzhi, Hu Yunxia, Xu Xiaomin, Zhang Xiao, Shao Zongping, An Liang

机构信息

Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, People's Republic of China.

Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Technology, Nanjing University of Information Science and Technology, Nanjing, 210044, People's Republic of China.

出版信息

Nanomicro Lett. 2024 Sep 21;17(1):6. doi: 10.1007/s40820-024-01511-4.

DOI:10.1007/s40820-024-01511-4

PMID:39304540

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11415562/

Abstract

Catalyst-support interaction plays a crucial role in improving the catalytic activity of oxygen evolution reaction (OER). Here we modulate the catalyst-support interaction in polyaniline-supported NiFe oxide (NiFe oxide/PANI) with a robust hetero-interface, which significantly improves oxygen evolution activities with an overpotential of 270 mV at 10 mA cm and specific activity of 2.08 mA cm at overpotential of 300 mV, 3.84-fold that of NiFe oxide. It is revealed that the catalyst-support interaction between NiFe oxide and PANI support enhances the Ni-O covalency via the interfacial Ni-N bond, thus promoting the charge and mass transfer on NiFe oxide. Considering the excellent activity and stability, rechargeable Zn-air batteries with optimum NiFe oxide/PANI are assembled, delivering a low charge voltage of 1.95 V to cycle for 400 h at 10 mA cm. The regulation of the effect of catalyst-support interaction on catalytic activity provides new possibilities for the future design of highly efficient OER catalysts.

摘要

催化剂-载体相互作用在提高析氧反应（OER）的催化活性中起着至关重要的作用。在此，我们通过一个坚固的异质界面来调节聚苯胺负载的镍铁氧化物（NiFe氧化物/PANI）中的催化剂-载体相互作用，这显著提高了析氧活性，在10 mA cm时过电位为270 mV，在300 mV过电位下比活性为2.08 mA cm，是NiFe氧化物的3.84倍。结果表明，NiFe氧化物与PANI载体之间的催化剂-载体相互作用通过界面Ni-N键增强了Ni-O共价性，从而促进了NiFe氧化物上的电荷和质量转移。考虑到其优异的活性和稳定性，组装了具有最佳NiFe氧化物/PANI的可充电锌空气电池，在10 mA cm下以1.95 V的低充电电压循环400 h。调节催化剂-载体相互作用对催化活性的影响为未来高效OER催化剂的设计提供了新的可能性。