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The direct synthesis of hydrogen peroxide from H2 and O2 using Pd-Ga and Pd-In catalysts
被引:34
|作者:
Wang, Sheng
[1
,2
]
Lewis, Richard J.
[3
]
Doronkin, Dmitry E.
[1
,4
]
Morgan, David J.
[3
]
Grunwaldt, Jan-Dierk
[1
,4
]
Hutchings, Graham J.
[3
]
Behrens, Silke
[1
,2
]
机构:
[1] KIT, Inst Catalysis Res & Technol IKFT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
[2] Heidelberg Univ, Inst Inorgan Chem, Neuenheimer Feld 270, D-69120 Heidelberg, Germany
[3] Cardiff Univ, Cardiff Catalysis Inst, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales
[4] KIT, Inst Chem Technol & Polymer Chem ITCP, Engesserstr 20, D-76131 Karlsruhe, Germany
关键词:
EFFICIENT EPOXIDATION;
SELECTIVE OXIDATION;
H2O2;
PALLADIUM;
NANOPARTICLES;
GOLD;
SULFOXIDES;
SULFIDES;
SULFONES;
D O I:
10.1039/c9cy02210d
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 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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页码:1925 / 1932
页数:8
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