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A Ternary Zn−Al−Ir Hydrotalcite‐Like Compound Exhibiting High Efficiency and Recyclability as a Water Oxidation Catalyst
Author(s) -
Fagiolari Lucia,
Scafuri Antonio,
Costantino Ferdinando,
Vivani Riccardo,
Nocchetti Morena,
Macchioni Alceo
Publication year - 2016
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201600087
Subject(s) - hydrotalcite , catalysis , iridium , ternary operation , brucite , chemistry , turnover number , zinc , inorganic chemistry , layered double hydroxides , metal , nuclear chemistry , materials science , organic chemistry , magnesium , computer science , programming language
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 0.667 Al 0.306 Ir 0.027 (OH) 2 ]Cl 0.333 ⋅ 0.6 H 2 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 4 as a sacrificial oxidant. This HTlc showed excellent performance in terms of turnover frequency (up to 113 min −1 ), turnover number (>11 900), stability and recyclability.