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Solid acid additives as recoverable promoters for the direct synthesis of hydrogen peroxide

Lewis, Richard, Edwards, Jennifer ORCID:, Freakley, Simon and Hutchings, Graham ORCID: 2017. Solid acid additives as recoverable promoters for the direct synthesis of hydrogen peroxide. Industrial & Engineering Chemistry Research 56 (45) , pp. 13287-13293. 10.1021/acs.iecr.7b01800

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The effectiveness of Cs-exchanged phosphotungstic acid as a recoverable solid acid additive for the direct synthesis of hydrogen peroxide (H2O2) using an Au-Pd / TiO2 catalyst is investigated and compared to the promotion effect of common oxides and non-halo acids. A clear improvement in catalytic activity towards H2O2 synthesis is reported when utilising Cs-containing heteropolyacids in addition to a standard H2O2 synthesising catalyst. The effect of Cs content on the promotion of H2O2 formation is investigated and the feasibility of a reusable heterogeneous additive has been explored revealing that the presence of the acid additive not only stabilises the H2O2 that is produced but also increases the H2O2 synthesis rate.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: American Chemical Society
ISSN: 0888-5885
Date of First Compliant Deposit: 18 July 2017
Date of Acceptance: 29 June 2017
Last Modified: 06 Nov 2023 17:14

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