@article{Lin2022, 
author = {Xuanni Lin and Lei Shi and Feng Liu and Changcheng Jiang and Junjie Mao and Chuangang Hu and Dong Liu},
title = {Large-scale production of holey carbon nanosheets implanted with atomically dispersed Fe sites for boosting oxygen reduction electrocatalysis},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {3},
pages = {1926-1933},
keywords = {fuel cells, oxygen reduction reaction, scalable synthesis, mechanochemical approach, atomically dispersed Fe sites},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3816-y},
doi = {10.1007/s12274-021-3816-y},
abstract = {Atomically dispersed metals stabilized by nitrogen elements in carbon skeleton hold great promise as alternatives for Pt-based catalysts towards oxygen reduction reaction in proton exchange membrane fuel cells. However, their widespread commercial applications are limited by complicated synthetic procedures for mass production. Herein, we are proposing a simple, green mechanochemical approach to synthesize zeolitic imidazolate frameworks precursors for the production of atomically dispersed “Fe-N4” sites in holey carbon nanosheets on a large scale. The thin porous carbon nanosheets (PCNs) with atomically dispersed “Fe-N4” moieties can be prepared in hectogram scale by directly pyrolysis of salt-sealed Fe-based zeolitic imidazolate framework-8 (Fe-ZIF-8@NaCl) precursors. The PCNs possess large specific surface area, abundant lamellar edges and rich “Fe-N4” active sites, and show superior catalytic activity towards oxygen reduction reaction in an acid electrolyte. This work provides a promising approach to cost-effective production of atomically dispersed transition metal catalysts on large scale for practical applications.}
}