Enabling alcohol as a hydrogen carrier using metal–organic framework-stabilized Ir–Sc bifunctional catalytic sites

Jing Wang; Huichong Liu; Jiawei Chen; Lingyun Cao; Cheng Wang

doi:10.1039/D2CC01114J

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Enabling alcohol as a hydrogen carrier using metal–organic framework-stabilized Ir–Sc bifunctional catalytic sites†

Jing Wang,^a Huichong Liu,^a Jiawei Chen,^a Lingyun Cao*^b and Cheng Wang

*^a

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* Corresponding authors

^a iChem, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
E-mail: wangchengxmu@xmu.edu.cn

^b Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, P. R. China

Abstract

Alcohols are attractive portable chemical carriers of hydrogen thanks to their reversible dehydrogenation, but the hydrogen release reaction is thermodynamically unfavorable. Coupling the alcohol dehydrogenation to acetal formation can shift the reaction thermodynamics for hydrogen production. Here, we stabilized Ir³⁺ and Sc³⁺ in a metal–organic framework (MOF) for tandem catalysis. The Ir³⁺ center bearing an α-hydroxybipyridine ligand catalyzes alcohol dehydrogenation, and the Sc³⁺ Lewis acid site catalyzes acetal formation that allows further dehydrogenation to form esters. The bifunctional UiO-bpyOH–IrCp–Sc catalyst effectively converts ethylene glycol to ester and H₂ without producing CO.

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Article information

DOI: https://doi.org/10.1039/D2CC01114J
Article type: Communication
Submitted: 23 Feb 2022
Accepted: 20 Apr 2022
First published: 25 Apr 2022

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Chem. Commun., 2022,58, 5857-5860

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Enabling alcohol as a hydrogen carrier using metal–organic framework-stabilized Ir–Sc bifunctional catalytic sites

J. Wang, H. Liu, J. Chen, L. Cao and C. Wang, Chem. Commun., 2022, 58, 5857 DOI: 10.1039/D2CC01114J

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Chemical Communications

Enabling alcohol as a hydrogen carrier using metal–organic framework-stabilized Ir–Sc bifunctional catalytic sites†

Abstract

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Enabling alcohol as a hydrogen carrier using metal–organic framework-stabilized Ir–Sc bifunctional catalytic sites

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