Single-site catalyst promoters accelerate metal-catalyzed nitroarene hydrogenation

Liang Wang, Erjia Guan, Jian Zhang, Junhao Yang, Yihan Zhu, Yu Han, Ming Yang, Cheng Cen, Gang Fu (), Bruce C. Gates () and Feng-Shou Xiao ()
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Liang Wang: Zhejiang University
Erjia Guan: University of California
Jian Zhang: Zhejiang University
Junhao Yang: Chinese Academy of Science
Yihan Zhu: King Abdullah University of Science and Technology
Yu Han: King Abdullah University of Science and Technology
Ming Yang: West Virginia University
Cheng Cen: West Virginia University
Gang Fu: Xiamen University
Bruce C. Gates: University of California
Feng-Shou Xiao: Zhejiang University

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Atomically dispersed supported metal catalysts are drawing wide attention because of the opportunities they offer for new catalytic properties combined with efficient use of the metals. We extend this class of materials to catalysts that incorporate atomically dispersed metal atoms as promoters. The catalysts are used for the challenging nitroarene hydrogenation and found to have both high activity and selectivity. The promoters are single-site Sn on TiO2 supports that incorporate metal nanoparticle catalysts. Represented as M/Sn-TiO2 (M = Au, Ru, Pt, Ni), these catalysts decidedly outperform the unpromoted supported metals, even for hydrogenation of nitroarenes substituted with various reducible groups. The high activity and selectivity of these catalysts result from the creation of oxygen vacancies on the TiO2 surface by single-site Sn, which leads to efficient, selective activation of the nitro group coupled with a reaction involving hydrogen atoms activated on metal nanoparticles.

Date: 2018
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DOI: 10.1038/s41467-018-03810-y

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