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The Direct Synthesis of Hydrogen Peroxide Using Platinum‐Promoted Gold–Palladium Catalysts
Author(s) -
Edwards Jennifer K.,
Pritchard James,
Lu Li,
Piccinini Marco,
Shaw Greg,
Carley Albert F.,
Morgan David J.,
Kiely Christopher J.,
Hutchings Graham J.
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201308067
Subject(s) - hydrogen peroxide , catalysis , selectivity , palladium , platinum , ternary operation , chemistry , decomposition , metal , inorganic chemistry , chemical engineering , organic chemistry , computer science , engineering , programming language
The direct synthesis of hydrogen peroxide offers a potentially green route to the production of this important commodity chemical. Early studies showed that Pd is a suitable catalyst, but recent work indicated that the addition of Au enhances the activity and selectivity significantly. The addition of a third metal using impregnation as a facile preparation method was thus investigated. The addition of a small amount of Pt to a CeO 2 ‐supported AuPd (weight ratio of 1:1) catalyst significantly enhanced the activity in the direct synthesis of H 2 O 2 and decreased the non‐desired over‐hydrogenation and decomposition reactions. The addition of Pt to the AuPd nanoparticles influenced the surface composition, thus leading to the marked effects that were observed on the catalytic formation of hydrogen peroxide. In addition, an experimental approach that can help to identify the optimal nominal ternary alloy compositions for this reaction is demonstrated.