Pairwise semi-hydrogenation of alkyne to cis -alkene on platinum-tin intermetallic compounds

Year: 2020

Type: article

Abstract: The molecular basis for the high cis-alkene selectivity over intermetallic PtSn for alkyne semi-hydrogenation is demonstrated. Unlike the universal assumption that the bimetallic surface is saturated with atomic hydrogen, molecular hydrogen has a higher barrier for dissociative adsorption on intermetallic PtSn due to the deficiency of Pt three-fold sites. The resulting molecular behavior of adsorbed hydrogen on intermetallic PtSn nanoparticles leads to pairwise-hydrogenation of three alkynes to the corresponding cis-alkenes, satisfying both high stereoselectivity and high chemoselectivity.

Source: Nanoscale

DOI: 10.1039/d0nr00920b

Authors: Yuchen Pei, Minda Chen, Xiaoliang Zhong, Tommy Yunpu Zhao, Maria-Jose Ferrer, Raghu V. Maligal-Ganesh, Tao Ma, Biying Zhang, Zhiyuan Qi, Lin Zhou, Clifford R. Bowers, Cong Liu, Wenyu Huang

Institutions: Iowa State University, Huazhong University of Science and Technology, University of Florida, United States Department of Energy, Ames National Laboratory, Argonne National Laboratory

Language: English

Topic: Nanomaterials for catalytic reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Science Foundation, U.S. Department of Energy, National High Magnetic Field Laboratory, Office of Science, Division of Materials Research, Division of Chemistry, Basic Energy Sciences, High Magnetic Field Laboratory, Chinese Academy of Sciences, Argonne National Laboratory, State of Florida

OpenAlex ID: W3013401143