CO2 Hydrogenation over Oxide-Supported PtCo Catalysts: The Role of the Oxide Support in Determining the Product Selectivity

Shyam Kattel; Weiting Yu; Xiaofang Yang; Binhang Yan; Yanqiang Huang; Weiming Wan; Ping Liu; Jingguang G Chen

doi:10.1002/anie.201601661

CO2 Hydrogenation over Oxide-Supported PtCo Catalysts: The Role of the Oxide Support in Determining the Product Selectivity

Angew Chem Int Ed Engl. 2016 Jul 4;55(28):7968-73. doi: 10.1002/anie.201601661. Epub 2016 May 9.

Authors

Shyam Kattel¹, Weiting Yu², Xiaofang Yang¹, Binhang Yan¹, Yanqiang Huang³, Weiming Wan², Ping Liu⁴, Jingguang G Chen^{5

6}

Affiliations

¹ Chemistry Department, Brookhaven National Laboratory, 2 Center St., Upton, NY, 11973, USA.
² Department of Chemical Engineering, Columbia University, 1500 W. 120th St., New York, NY, 10027, USA.
³ Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, China.
⁴ Chemistry Department, Brookhaven National Laboratory, 2 Center St., Upton, NY, 11973, USA. pingliu3@bnl.gov.
⁵ Chemistry Department, Brookhaven National Laboratory, 2 Center St., Upton, NY, 11973, USA. jgchen@columbia.edu.
⁶ Department of Chemical Engineering, Columbia University, 1500 W. 120th St., New York, NY, 10027, USA. jgchen@columbia.edu.

PMID: 27159088
DOI: 10.1002/anie.201601661

Abstract

By simply changing the oxide support, the selectivity of a metal-oxide catalysts can be tuned. For the CO2 hydrogenation over PtCo bimetallic catalysts supported on different reducible oxides (CeO2 , ZrO2 , and TiO2 ), replacing a TiO2 support by CeO2 or ZrO2 selectively strengthens the binding of C,O-bound and O-bound species at the PtCo-oxide interface, leading to a different product selectivity. These results reveal mechanistic insights into how the catalytic performance of metal-oxide catalysts can be fine-tuned.

Keywords: bimetallic catalysts; carbon dioxide; heterogeneous catalysis; hydrogenation; supported catalysts.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.