Impregnation of KOAc on PdAu/SiO2 causes Pd-acetate formation and metal restructuring

Author:

Jacobs Hunter P.1ORCID,Elias Welman C.1,Heck Kimberly N.1,Dean David P.2,Dodson Justin J.3,Zhang Wenqing1,Arredondo Jacob H.1,Breckner Christian J.2ORCID,Hong Kiheon4,Botello Christopher R.1,Chen Laiyuan3,Mueller Sean G.3,Alexander Steven R.3,Miller Jeffrey T.2,Wong Michael S.1456ORCID

Affiliation:

1. Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, 6100 Main Street, Houston, Texas, 77005, USA

2. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana, 47907, USA

3. Celanese Corporation, 9502 Bayport Blvd., Pasadena, TX, 77507, USA

4. Department of Civil and Environmental Engineering, Rice University, USA

5. Department of Materials Science and NanoEngineering, Rice University, USA

6. Department of Chemistry, Rice University, USA

Abstract

During catalyst preparation, the simple wet impregnation of KOAc on bimetallic PdAu/SiO2 catalysts forms various Pd-acetate complexes, particularly at increasing concentrations of KOAc and AcOH, causing Pd leaching and metal restructuring.

Funder

American Chemical Society Petroleum Research Fund

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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