共轭体系
生产(经济)
化学
制氢
光合作用
生化工程
氢
纳米技术
环境科学
材料科学
工程类
生物化学
有机化学
聚合物
经济
宏观经济学
作者
Can Yang,Beatriz Chiyin,Linzhu Zhang,Sen Lin,Saman Ghasimi,Katharina Landfester,Kai A. I. Zhang,Xinchen Wang
标识
DOI:10.1002/anie.201603532
摘要
Abstract The search for metal‐free organic photocatalysts for H 2 production from water using visible light remains a key challenge. Reported herein is a molecular structural design of pure organic photocatalysts, derived from conjugated polybenzothiadiazoles, for photocatalytic H 2 evolution using visible light. By alternating the substitution position of the electron‐withdrawing benzothiadizole unit on the phenyl unit as a comonomer, various polymers with either one‐ or three‐dimensional structures were synthesized and the effect of the molecular structure on their catalytic activity was investigated. Photocatalytic H 2 evolution efficiencies up to 116 μmol h −1 were observed by employing the linear polymer based on a phenyl‐benzothiadiazole alternating main chain, with an apparent quantum yield (AQY) of 4.01 % at 420 nm using triethanolamine as the sacrificial agent.
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