Yingna Chang

2D Covalent Organic Frameworks: Organic Electrode Materials for Aqueous Batteries Two-dimensional covalent organic frameworks (2D COFs) have swiftly gained prominence as versatile organic electrode materials for aqueous batteries, driven by their insoluble skeletons, one-dimensional (1D) porous structures, and exceptional structural tunability.

Topotactic N-doped carbon for efficient oxygen reduction reaction A topotactic molecular doping strategy is developed via in-situ coupling the dechlorinated carbon with ringed heterocyclic molecules at mild conditions. Specifically, pyridine and pyrrole-converted carbon obtain pyridinic N to pyrrolic N ratios of 1.82 and 0.13, respectively. The Npyri-C shows much advanced activity and kinetics for oxygen reduction over the Npyrr-C sample.

A biomimetic MoFe-NC for efficient N2 electroreduction to NH3† Yingna Chang,a Jiawei Li,a Yuxiang Zuo,a Jindi Wang,a Kefan Song,a Yu Liu,a Rong Xing*a and Guoxin Zhang *b Abstract A binary Mo/Fe-nitrogen-carbon material (MoFe-NC) catalyst was synthesized following the concept of biological nitrogen fixation. The MoFe-NC catalyst demonstrated a maximum N2 reduction faradaic efficiency of 39.9% and a NH3 yield rate of 28.5 μg mgcat−1 h−1 under ambient conditions.