Direct synthesis of hydrogen peroxide in water at ambient temperature

Crole, David Alexander, Freakley, Simon J., Edwards, Jennifer Kelly ORCID: https://orcid.org/0000-0003-4089-2827 and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 2016. Direct synthesis of hydrogen peroxide in water at ambient temperature. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472 (2190) , 20160156. 10.1098/rspa.2016.0156

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Abstract

The direct synthesis of hydrogen peroxide (H2O2) from hydrogen and oxygen has been studied using an Au–Pd/TiO2 catalyst. The aim of this study is to understand the balance of synthesis and sequential degradation reactions using an aqueous, stabilizer-free solvent at ambient temperature. The effects of the reaction conditions on the productivity of H2O2 formation and the undesirable hydrogenation and decomposition reactions are investigated. Reaction temperature, solvent composition and reaction time have been studied and indicate that when using water as the solvent the H2O2 decomposition reaction is the predominant degradation pathway, which provides new challenges for catalyst design, which has previously focused on minimizing the subsequent hydrogenation reaction. This is of importance for the application of this catalytic approach for water purification.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Royal Society
ISSN:	1364-5021
Funders:	Selden Research Limited and Cardiff University
Date of First Compliant Deposit:	11 August 2016
Date of Acceptance:	26 May 2016
Last Modified:	08 Nov 2024 15:45
URI:	https://orca.cardiff.ac.uk/id/eprint/93741

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