纳米棒
光催化
酰亚胺
材料科学
甲烷化
化学工程
人工光合作用
氮化碳
吸附
催化作用
纳米技术
化学
有机化学
高分子化学
工程类
作者
Jiaming Wu,Keyan Li,Bing Zhou,Rui Li,Siyang Yan,Jiaxu Liu,Hainan Shi,Chunshan Song,Xinwen Guo
出处
期刊:Angewandte Chemie
[Wiley]
日期:2024-12-03
卷期号:64 (10): e202421263-e202421263
被引量:17
标识
DOI:10.1002/anie.202421263
摘要
Abstract Poly(heptazine imide) (PHI), one of the crystalline or long‐range ordered allotropes of polymeric carbon nitride, is a promising polymeric photocatalyst; however, preparation of highly crystalline PHI remains a challenge. Herein, through a bottom‐up strategy involving repair of structural defects and increase of specific surface area of melon precursor, we prepared PHI nanorods with dramatically improved long‐range order. The resulting PHI exhibited a shift of product selectivity in CO 2 photoreduction from CO to CH 4 with a high methanation activity in contrast to the pristine PHI with relatively low long‐range order. The improvement of long‐range order for PHI remarkably enhanced the separation efficiency and transfer kinetics of photogenerated charges as well as the adsorption for *CO intermediate. This study revealed the relationship between the precursor structure and PHI crystal growth in ionothermal synthesis, and also showcased the great potential of highly crystalline PHI in artificial photosynthesis.
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