Shaoqing Chen, Hui-Min Yan, Jochi Tseng, Shijie Ge, Xia Li, Lin Xie, Zian Xu, Pengfei Liu, Chongxuan Liu, Jie Zeng, Yang-Gang Wang, Hsing-Lin Wang
Tuning the active site structure of metal-nitrogen-carbon electrocatalysts has recently attracted increasing interest. Herein, we report a bottom-up synthesis strategy in which atomically regulated N-doped polycyclic aromatic hydrocarbons (N-PAHs) of N x C42- x ( x = 1, 2, 3, 4) were used as ligands to allow tuning of the active site's structures of M-N x and establish correlations between the structures and electrocatalytic properties. Based on the synthesis process, detailed characterization, and DFT calculation results, active structures of N x -Fe1 -N x in Fe1 -N x /RGO catalysts were constructed...
April 18, 2024: Journal of the American Chemical Society