The Direct Synthesis of Hydrogen Peroxide over AuPd Nanoparticles: An Investigation into Metal Loading

被引：23
作者：
Brehm, Joseph [1 ]
Lewis, Richard J. [1 ]
Morgan, David J. [1 ,2 ]
Davies, Thomas E. [1 ]
Hutchings, Graham J. [1 ]
机构：
[1] Cardiff Univ, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales
[2] Res Complex Harwell RCaH, HarwellXPS, Didcot OX11 OFA, Oxon, England
来源：
CATALYSIS LETTERS | 2022年 / 152卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Gold; Palladium; Hydrogen peroxide; Green chemistry;
D O I：
10.1007/s10562-021-03632-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The direct synthesis of H2O2 from molecular H-2 and O-2 over AuPd catalysts, supported on TiO2 and prepared via an excess chloride co-impregnation procedure is investigated. The role of Au:Pd ratio on the catalytic activity towards H2O2 formation and its subsequent degradation is evaluated under conditions that have previously been found to be optimal for the formation of H2O2. The combination of relatively small nanoparticles, of mixed Pd-oxidation state is shown to correlate with enhanced catalytic performance. Subsequently, a detailed study of catalytic activity towards H2O2 synthesis as a function of AuPd loading was conducted, with a direct correlation between catalytic activity and metal loading observed. [GRAPHICS] .
引用
收藏
页码：254 / 262
页数：9
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