Cobalt Single-Atom Catalysts with High Stability for Selective Dehydrogenation of Formic Acid |
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| Authors: | Dr Xiang Li Dr Annette-Enrica Surkus Dr Jabor Rabeah Dr Muhammad Anwar Dr Sarim Dastigir Dr Henrik Junge Prof Dr Angelika Brückner Prof Dr Matthias Beller |
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| Institution: | 1. School of Space and Environment, Beihang University, Beijing, 100191 P. R. China;2. Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059 Rostock, Germany;3. Qatar Environment & Energy Research Institute, Researchery, Education City, 34110 Doha, Qatar |
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| 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. |
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| Keywords: | cobalt dehydrogenation energy nanoparticles single-atom catalysts |
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