使用鞍形扭曲卟啉作为光催化剂对氧气进行高效光催化质子耦合电子转移还原。
Efficient photocatalytic proton-coupled electron-transfer reduction of O using a saddle-distorted porphyrin as a photocatalyst.
作者信息
Aoki Emi, Suzuki Wataru, Kotani Hiroaki, Ishizuka Tomoya, Sakai Hayato, Hasobe Taku, Kojima Takahiko
机构信息
Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba and CREST (JST), 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan.
出版信息
Chem Commun (Camb). 2019 Apr 23;55(34):4925-4928. doi: 10.1039/c9cc01547g.
Photocatalytic O2 reduction reactions proceeded to produce H2O2 using a diprotonated saddle-distorted dodecaphenylporphyrin as a photocatalyst. The quantum yield (12%), the turnover number (3000 for 6 h), and the turnover frequency (500 h-1) are achieved in photocatalytic systems based on free-base porphyrins for the first time. The photocatalytic reaction mechanism has been revealed by ns-laser flash photolysis and kinetic analysis.
使用双质子化鞍形扭曲十二苯基卟啉作为光催化剂，光催化氧气还原反应进行以产生过氧化氢。基于游离碱卟啉的光催化体系首次实现了量子产率（12%）、周转数（6小时内为3000）和周转频率（500 h-1）。通过纳秒激光闪光光解和动力学分析揭示了光催化反应机理。
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