Dimensionally stable NiFe@Co/Ti nanoporous electrodes by reactive deposition for water electrolysis
|dc.contributor.author||Jiang, San Ping|
|dc.identifier.citation||Yao, S. and Wang, C. and Li, M. and Cheng, Y. and Xing, W. and Jiang, S.P. 2017. Dimensionally stable Ni-Fe@Co/Ti nanoporous electrodes by reactive deposition for water electrolysis. International Journal of Hydrogen Energy. 42 (10): pp. 7143-7150.|
The development of efficient and dimensionally stable electrode plates is of a significant challenge for the oxygen evolution reaction in the industrial water electrolysis process. In this work, structurally stable electrode plates are developed based on the nanostructured Ni-Fe catalysts on highly porous and dimensionally stable Co reactive deposited on Ti substrates, Ni-Fe@Co/Ti. SEM analysis shows the hierarchically structured micro- and nano-porous structure of the Co electrode on Ti substrates by reactive deposition route. The surface area of the reactive deposited Co is 3 times larger than that of the conventional electrodeposited Co electrode, providing highly porous and stable base for the subsequent deposition of Ni-Fe electrocatalysts. The as-prepared Ni-Fe@Co/Ti electrode exhibits high catalytic activity towards oxygen evolution in alkaline solutions, achieving an onset potential of as low as 1.44 V (η = 210 mV) and delivering a current of 10 mA cm−2 at an overpotential of 0.26 V. Most importantly, the electrode shows excellent stability with negligible degradation under the discharge current density at 100 mA cm−2 for 100 h, demonstrating the practical applicability of the Ni-Fe@Co/Ti nanostructured electrodes for industrial scale water electrolysis.
|dc.title||Dimensionally stable NiFe@Co/Ti nanoporous electrodes by reactive deposition for water electrolysis|
|dcterms.source.title||International Journal of Hydrogen Energy|
|curtin.department||Fuels and Energy Technology Institute|
|curtin.accessStatus||Fulltext not available|
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