Fagiolari Lucia, Scafuri Antonio, Costantino Ferdinando, Vivani Riccardo, Nocchetti Morena, Macchioni Alceo
Department of Chemistry, Biology and Biotechnology and CIRCC, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy.
Department of Pharmaceutical Sciences and CEMIN, University of Perugia, Via Fabretti 48, 06123, Perugia, Italy.
Chempluschem. 2016 Oct;81(10):1060-1063. doi: 10.1002/cplu.201600087.
Herein it is shown that hydrotalcite-like compounds (HTlcs), doped with a suitably reactive metal, can efficiently act as water oxidation catalysts. As a case study, a ternary HTlc of formula [Zn Al Ir (OH) ]Cl ⋅0.6 H O, in which iridium is homogeneously distributed into the octahedral sites of brucite-type sheets, was prepared and tested as a heterogeneous water oxidation catalyst, using NaIO as a sacrificial oxidant. This HTlc showed excellent performance in terms of turnover frequency (up to 113 min ), turnover number (>11 900), stability and recyclability.
本文表明，掺杂适当活性金属的类水滑石化合物（HTlcs）可有效充当水氧化催化剂。作为一个案例研究，制备了化学式为[Zn Al Ir (OH) ]Cl ⋅0.6 H O的三元HTlc，其中铱均匀分布在水镁石型片层的八面体位置，并使用NaIO作为牺牲氧化剂，将其作为多相水氧化催化剂进行测试。该HTlc在周转频率（高达113 min ）、周转数（>11 900）、稳定性和可回收性方面表现出优异的性能。
