Demonstration of Enhanced Piezo-Catalysis for Hydrogen Generation and Water Treatment at the Ferroelectric Curie Temperature

Journal article


Thuy Phuong, PT, Zhang, Y, Gathercole, N, Khanbareh, H, Hoang Duy, NP, Zhou, X, Zhang, D, Zhou, K, Dunn, S and Bowen, C (2020). Demonstration of Enhanced Piezo-Catalysis for Hydrogen Generation and Water Treatment at the Ferroelectric Curie Temperature. iScience. 23 (5), pp. 101095-101095. https://doi.org/10.1016/j.isci.2020.101095
AuthorsThuy Phuong, PT, Zhang, Y, Gathercole, N, Khanbareh, H, Hoang Duy, NP, Zhou, X, Zhang, D, Zhou, K, Dunn, S and Bowen, C
Abstract

© 2020 The Author(s) Hydrogen can contribute significantly to the energy mix of the near future, as it is an attractive replacement for fossil fuels due to its high energy density and low greenhouse gas emission. A fascinating approach is to use the polarization change of a ferroelectric due to an applied stress or temperature change to achieve piezo- or pyro-catalysis for both H2 generation and wastewater treatment. We exploit low Curie temperature (Tc) ferroelectrics for polarization-driven electrochemical reactions, where the large changes in polarization and high activity of a ferroelectric near its Tc provides a novel avenue for such materials. We present experimental evidence for enhanced water splitting and rhodamine B degradation via piezo-catalysis by ultrasonic excitation at its Tc. Such work provides an effective strategy for water splitting/treatment systems that employ low Tc ferroelectrics under the action of mechanical stress or/and thermal fluctuations.

Year2020
JournaliScience
Journal citation23 (5), pp. 101095-101095
PublisherElsevier BV
ISSN2589-0042
Digital Object Identifier (DOI)https://doi.org/10.1016/j.isci.2020.101095
Publication dates
Print22 May 2020
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Deposited27 Aug 2020
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Controlled
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Open
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