Protonation effect on catalytic water oxidation activity of a mononuclear Ru catalyst containing a free pyridine unit
发表时间：2019-11-04
点击次数：
- 论文类型：
- 期刊论文
- 第一作者：
- Liu, Zhao
- 通讯作者：
- Gao, Yan(dr.gaoyan@dlut.edu.cn)
- 合写作者：
- Gao, Yan,Wang, Jing,Yao, Ya'nan,Wei, Yu,Chen, Xuyang
- 发表时间：
- 2018-09-01
- 发表刊物：
- Journal of Energy Chemistry
- 文献类型：
- J
- 卷号：
- 27
- 期号：
- 5
- 页面范围：
- 1402-1408
- ISSN号：
- 20954956
- 摘要：
- Two efficient single-site Ru water oxidation catalysts [Ru(bda)(pic)(Ln)] (bda = 2,2 ?bipyridine-6,6 ?dicarboxylic acid, pic = picoline, L1 = 4,5-bipyridine-2,7-di-tert-butyl-9,9-dimethylxanthene, L2 = 4-pyridine-5-phenyl-2,7-di-tert-butyl-9,9-dimethylxanthene) were only synthesized containing different xanthene ligands at the axial site. These complexes have been thoroughly characterized by spectroscopic (UV–vis, NMR) and electrochemical (CV and DPV) techniques. Kinetic analysis proved that the mechanism of water oxidation comprises the water nucleophilic attack process on high-valence ruthenium species. It is found that the catalyst 1 displayed higher activity than catalyst 2 on water oxidation, caused by the protonation of the axial ligand L1 with a free pyridine. © 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- 是否译文：
- 否
