High selectivity of CO2 hydrogenation to CO by controlling the valence state of nickel using perovskite

Baohuai Zhao; Binhang Yan; Zhao Jiang; Siyu Yao; Zongyuan Liu; Qiyuan Wu; Rui Ran; Sanjaya D. Senanayake; Duan Weng; Jingguang G. Chen

doi:10.1039/C8CC03829E

High selectivity of CO₂ hydrogenation to CO by controlling the valence state of nickel using perovskite†

Baohuai Zhao,‡^ab Binhang Yan,‡^bc Zhao Jiang,^d Siyu Yao,^b Zongyuan Liu,

^b Qiyuan Wu,

^e Rui Ran,*^a Sanjaya D. Senanayake,

^b Duan Weng^a and Jingguang G. Chen

*^bd

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
E-mail: ranr@tsinghua.edu.cn

^b Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, USA

^c Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

^d Department of Chemical Engineering, Columbia University, New York, New York 10027, USA
E-mail: jgchen@columbia.edu

^e Department of Material Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, USA

Abstract

The selectivity of CO₂ hydrogenation can be significantly tuned by controlling the valence state of nickel using lanthanum–iron–nickel perovskites. Nickel with higher valence states weakens the binding of CO and increases the activation barrier for further CO hydrogenation, leading to a higher CO selectivity than the metallic nickel.

Chemical Communications

High selectivity of CO₂ hydrogenation to CO by controlling the valence state of nickel using perovskite†

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High selectivity of CO₂ hydrogenation to CO by controlling the valence state of nickel using perovskite

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