Enhanced catalyst selectivity in the direct synthesis of H2O2 through Pt incorporation into TiO2 supported AuPd catalysts. Issue 14 (2nd July 2020)

• Record Type: Journal Article
• Authors: Gong, Xiaoxiao; Lewis, Richard J.; Zhou, Song; Morgan, David J.; Davies, Thomas E.; Liu, Xi; Kiely, Christopher J.; Zong, Baoning; Hutchings, Graham J.
• Is Part Of: Catalysis science & technology. Volume 10:Issue 14(2020)
• Page Start: 4635
• Page End: 4644
• Publication Date: 2020-07-02
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d0cy01079k
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : The introduction of low levels of Pt dopant into AuPd nanoparticles supported on TiO2 significantly enhances their catalytic performance for the direct synthesis of H2 O2 . Abstract : The introduction of small quantities of Pt into supported AuPd nanoparticles is found to result in enhanced catalytic efficiency in the direct synthesis of H2 O2 . This is attributed to a combination of superior H2 O2 synthesis rates, as determined through calculation of initial rates of reaction, and an inhibition of H2 O2 degradation pathways, achieved through the modification of Pd oxidation states. Through gas replacement experiments we demonstrate that it is possible to reach concentrations of H2 O2 approaching those produced during initial stages of the current industrial means of H2 O2 production.