Chen Zuofeng, Concepcion Javier J, Song Na, Meyer Thomas J
Department of Chemistry, Tongji University, Shanghai 200092, PR China.
Chem Commun (Camb). 2014 Jul 28;50(59):8053-6. doi: 10.1039/c4cc04071f.
Rates of electrocatalytic water oxidation to oxygen by Ru(II) polypyridyl complexes are enhanced by added NaCl. Observations based on the single-site catalyst Ru(II)(Mebimpy)(bpy)(OH2) (Mebimpy is 2,6-bis(1-methylbenzimidazol-2-yl)pyridine; bpy is 2,2'-bipyridine) at pH 7.0 in a phosphate buffer suggest a mechanism involving initial oxidation of the catalyst to Ru(V)(O)(3+) followed by Cl(-) oxidation to HOCl. Once formed, HOCl is oxidized to O2.
添加氯化钠可提高钌（II）多吡啶配合物将电催化水氧化为氧气的速率。在pH值为7.0的磷酸盐缓冲液中，基于单中心催化剂[Ru（II）（Mebimpy）（bpy）（OH2）]（2+）（Mebimpy为2,6-双（1-甲基苯并咪唑-2-基）吡啶；bpy为2,2'-联吡啶）的观察结果表明，其机理涉及催化剂先氧化为Ru（V）（O）（3+），然后Cl（-）氧化为HOCl。一旦形成，HOCl被氧化为O2。
