Journal article
Highly dispersed and disordered nickel-iron layered hydroxides and sulphides: Robust and high-activity water oxidation catalysts
M Chatti, AM Glushenkov, T Gengenbach, GP Knowles, TC Mendes, AV Ellis, L Spiccia, RK Hocking, AN Simonov
Sustainable Energy and Fuels | ROYAL SOC CHEMISTRY | Published : 2018
DOI: 10.1039/c8se00129d
Abstract
The present work introduces a rapid low-temperature microwave-assisted synthesis of nickel(iron) layered hydroxides and sulphides that exhibit robust catalytic activity for electrooxidation of alkaline water-the most feasible source of electrons for any renewable fuel synthesis. The procedures require not more than an hour to complete at 120-150 °C with quantitative yields of: (i) few-atomic-layers thick porous sheets of Ni 0.75 Fe 0.25 (OH) 2+x with surface area A BET = 149 m 2 g -1 , and (ii) interconnected Ni 0.75 Fe 0.25 S 2+y particles of few nanometers in size covered with a thin oxide/hydroxide layer having A BET = 87 m 2 g -1 . These and other morphological and structural features of..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
The authors acknowledge the use of facilities within the Monash X-ray Platform (funded by Australian Research Council grant LE130100072) and Monash Centre for Electron Microscopy (Monash University), the Australian Synchrotron for providing access to the XAS beam-line (project ID M12592), Dr B. Johannessen, Dr P. Kappen and Dr C. Glover for the support in XAS experiments, and Dr K. Nairn for proofreading the manuscript. Transmission electron microscopy was carried out at the Bio21 Advanced Microscopy Facility (the University of Melbourne). Funding of this work by the Australian Research Council through the ARC Centre of Excellence for Electromaterials Science (CE140100012) is gratefully appreciated.