Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid

Xiang Li; Annette Enrica Surkus; Jabor Rabeah; Muhammad Anwar; Sarim Dastigir; Henrik Junge; Angelika Brückner; Matthias Beller

doi:10.1002/anie.202004125

Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid

Xiang Li, Annette Enrica Surkus, Jabor Rabeah, Muhammad Anwar, Sarim Dastigir, Henrik Junge, Angelika Brückner, Matthias Beller^*

^*Corresponding author for this work

QEERI - Energy Center

Research output: Contribution to journal › Article › peer-review

196 Citations (Scopus)

Abstract

Metal–organic framework (MOF)-derived Co-N-C catalysts with isolated single cobalt atoms have been synthesized and compared with cobalt nanoparticles for formic acid dehydrogenation. The atomically dispersed Co-N-C catalyst achieves superior activity, better acid resistance, and improved long-term stability compared with nanoparticles synthesized by a similar route. High-angle annular dark-field–scanning transmission electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance, and X-ray absorption fine structure characterizations reveal the formation of Co^IIN_x centers as active sites. The optimal low-cost catalyst is a promising candidate for liquid H₂ generation.

Original language	English
Pages (from-to)	15849-15854
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	59
Issue number	37
DOIs	https://doi.org/10.1002/anie.202004125
Publication status	Published - 7 Sept 2020

Keywords

cobalt
dehydrogenation
energy
nanoparticles
single-atom catalysts

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10.1002/anie.202004125

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title = "Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid",

abstract = "Metal–organic framework (MOF)-derived Co-N-C catalysts with isolated single cobalt atoms have been synthesized and compared with cobalt nanoparticles for formic acid dehydrogenation. The atomically dispersed Co-N-C catalyst achieves superior activity, better acid resistance, and improved long-term stability compared with nanoparticles synthesized by a similar route. High-angle annular dark-field–scanning transmission electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance, and X-ray absorption fine structure characterizations reveal the formation of CoIINx centers as active sites. The optimal low-cost catalyst is a promising candidate for liquid H2 generation.",

keywords = "cobalt, dehydrogenation, energy, nanoparticles, single-atom catalysts",

author = "Xiang Li and Surkus, {Annette Enrica} and Jabor Rabeah and Muhammad Anwar and Sarim Dastigir and Henrik Junge and Angelika Br{\"u}ckner and Matthias Beller",

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T1 - Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid

AU - Li, Xiang

AU - Surkus, Annette Enrica

AU - Rabeah, Jabor

AU - Anwar, Muhammad

AU - Dastigir, Sarim

AU - Junge, Henrik

AU - Brückner, Angelika

AU - Beller, Matthias

PY - 2020/9/7

Y1 - 2020/9/7

N2 - Metal–organic framework (MOF)-derived Co-N-C catalysts with isolated single cobalt atoms have been synthesized and compared with cobalt nanoparticles for formic acid dehydrogenation. The atomically dispersed Co-N-C catalyst achieves superior activity, better acid resistance, and improved long-term stability compared with nanoparticles synthesized by a similar route. High-angle annular dark-field–scanning transmission electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance, and X-ray absorption fine structure characterizations reveal the formation of CoIINx centers as active sites. The optimal low-cost catalyst is a promising candidate for liquid H2 generation.

AB - Metal–organic framework (MOF)-derived Co-N-C catalysts with isolated single cobalt atoms have been synthesized and compared with cobalt nanoparticles for formic acid dehydrogenation. The atomically dispersed Co-N-C catalyst achieves superior activity, better acid resistance, and improved long-term stability compared with nanoparticles synthesized by a similar route. High-angle annular dark-field–scanning transmission electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance, and X-ray absorption fine structure characterizations reveal the formation of CoIINx centers as active sites. The optimal low-cost catalyst is a promising candidate for liquid H2 generation.

KW - cobalt

KW - dehydrogenation

KW - energy

KW - nanoparticles

KW - single-atom catalysts

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Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid

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