@article{Du2024, 
author = {Yue Du and Wenxue Chen and Zhiyi Zhong and Zhixian Shi and Yulin Zhang and Xuanning Chen and Yisi Liu and Dongbin Xiong and Lina Zhou and Zhenhui Liu and Mingbo Zheng},
title = {A high-performance electrocatalyst for oxygen reduction derived from copolymer-anchored polyoxometalates},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {6},
pages = {5197-5205},
keywords = {oxygen reduction reaction, Zn-air battery, W3N4-WP heterojunctions, copolymer-anchored polyoxometalates},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6459-y},
doi = {10.1007/s12274-024-6459-y},
abstract = {The development and synthesis of cathode electrocatalysts with high activity and durable stability for metal-air batteries is an important challenge in the area of electrocatalysis. Herein, we introduce a novel in-situ nitriding and phosphating strategy for producing W3N4 and WP from phosphotungstic acid (HPW)-polyaniline-phytic acid-Fe3+ organic–inorganic hybrid material. The final material has a three-dimensional porous framework with W3N4-WP heterostructures embedded in the carbon matrix (W3N4-WP@NPC). As-made materials exhibit exceptional electrocatalytic performance for the oxygen reduction reaction (ORR), with a diffusion-limiting current density of 6.9 mA·cm−2 and a half-wave potential of 0.82 V. As a Zn-air primary cathode, the W3N4-WP@NPC assembled battery can provide a relatively high peak power density (194.2 mW·cm−2). As a Zn-air secondary air-cathode, it has great cycling stability over 500 h. This work provides a simple and efficient method for rationally designing high-performance air cathodes from copolymer-anchored polyoxometalates.}
}