Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 37, Pages 15849-15854Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202004125
Keywords
cobalt; dehydrogenation; energy; nanoparticles; single-atom catalysts
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Funding
- China Scholarship Council [201806025040]
- National Natural Science Foundation of China [21906004]
- BMBF
- European Research Council (EU project) [670986]
- French National Research Agency as part of the Investissements dAvenir program [ANR10EQPX45]
- European Research Council (ERC) [670986] Funding Source: European Research Council (ERC)
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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(II)N(x)centers as active sites. The optimal low-cost catalyst is a promising candidate for liquid H(2)generation.
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