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 for- mula [Zn0.667Al0.306Ir0.027(OH)2]Cl0.333·0.6H2O, in which iridium is homogeneously distributed into the octahedral sites of bru- cite-type sheets, was prepared and tested as a heterogeneous water oxidation catalyst, using NaIO4 as a sacrificial oxidant. This HTlc showed excellent performance in terms of turnover frequency (up to 113min 1), turnover number (>11900), sta- bility and recyclability.
A Ternary Zn−Al−Ir Hydrotalcite-Like Compound Exhibiting High Efficiency and Recyclability as a Water Oxidation Catalyst
FAGIOLARI, LUCIA;SCAFURI, ANTONIO;COSTANTINO, FERDINANDO;VIVANI, Riccardo;NOCCHETTI, Morena;MACCHIONI, Alceo
2016
Abstract
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 for- mula [Zn0.667Al0.306Ir0.027(OH)2]Cl0.333·0.6H2O, in which iridium is homogeneously distributed into the octahedral sites of bru- cite-type sheets, was prepared and tested as a heterogeneous water oxidation catalyst, using NaIO4 as a sacrificial oxidant. This HTlc showed excellent performance in terms of turnover frequency (up to 113min 1), turnover number (>11900), sta- bility and recyclability.File in questo prodotto:
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