The direct synthesis of hydrogen peroxide from H2 and O2 using Pd–Ga and Pd–In catalysts

Sheng Wang; Richard J. Lewis; Dmitry E. Doronkin; David J. Morgan; Jan-Dierk Grunwaldt; Graham J. Hutchings; Silke Behrens

doi:10.1039/C9CY02210D

The direct synthesis of hydrogen peroxide from H₂ and O₂ using Pd–Ga and Pd–In catalysts†

Sheng Wang,^ab Richard J. Lewis,

^c Dmitry E. Doronkin,^ad David J. Morgan,

^c Jan-Dierk Grunwaldt,^ad Graham J. Hutchings

*^c and Silke Behrens

*^ab

Author affiliations

* Corresponding authors

^a Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
E-mail: Silke.Behrens@kit.eu

^b Institute of Inorganic Chemistry, Ruprecht-Karls University Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany

^c Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, UK
E-mail: Hutch@Cardiff.ac.uk

^d Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of technology (KIT), Engesserstr. 20, 76131 Karlsruhe, Germany

Abstract

The direct synthesis of hydrogen peroxide is investigated using PdGa/TiO₂ and PdIn/TiO₂ catalysts prepared by an acid-washed sol-immobilisation procedure, which allows for good control of particle size. The introduction of both Ga and In into a supported Pd catalyst leads to significantly reduced rates of H₂O₂ degradation in comparison to the monometallic counterpart. Detailed characterisation reveals that this enhancement is a result of selectively tuning the ratio of Pd oxidation states.

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DOI: https://doi.org/10.1039/C9CY02210D
Article type: Paper
Submitted: 31 Oct 2019
Accepted: 09 Jan 2020
First published: 25 Feb 2020
This article is Open Access

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Catal. Sci. Technol., 2020,10, 1925-1932

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The direct synthesis of hydrogen peroxide from H₂ and O₂ using Pd–Ga and Pd–In catalysts

S. Wang, R. J. Lewis, D. E. Doronkin, D. J. Morgan, J. Grunwaldt, G. J. Hutchings and S. Behrens, Catal. Sci. Technol., 2020, 10, 1925 DOI: 10.1039/C9CY02210D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Catalysis Science & Technology

The direct synthesis of hydrogen peroxide from H₂ and O₂ using Pd–Ga and Pd–In catalysts†

Abstract

Supplementary files

Article information

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The direct synthesis of hydrogen peroxide from H₂ and O₂ using Pd–Ga and Pd–In catalysts

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