Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 31, Issue 12, Pages 9481-9485Publisher
SPRINGER
DOI: 10.1007/s10854-020-03488-3
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- King Mongkut's Institute of Technology Ladkrabang, Thailand
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CuAlO2 has received a wealth of interdependent research associated with hydrogen-based catalysis in the chemical industry. Herein, Fe-doped CuAlO2 is demonstrated to reduce the redox temperature for delafossite CuAlO2. Time-resolved X-ray absorption spectroscopy and hydrogen temperature-programmed reduction were used to characterize the redox properties, respectively. Delafossite CuAlO2, with and without Fe doping at 10 at% (CuAl0.9Fe0.1O2), was synthesized via a one-step solid-state reaction method. The results demonstrate that the redox temperature can be reduced by similar to 60 K for the 10 at% Fe-doped catalyst. The findings of this contribution offer a new approach to circumvent the high temperatures associated with the redox processes, and furthermore, offer a design basis for the development of new catalyst systems with enhanced regeneration abilities.
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