Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 42, Pages 13800-13804Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201803977
Keywords
heterogeneous catalysis; hydrogenation; Lewis pairs; metal-free catalysis; nanocarbons
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Funding
- NSFC of China [21473223]
- Talents Innovation Project of Dalian [2016RD04]
- NSFC [21522310, 21473244]
- NSF of Hubei [2018CFA009]
- Key Research Program of Frontier Sciences CAS [QYZDB-SSW-SLH026]
- Max Planck Society
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Designing heterogeneous metal-free catalysts for hydrogenation is a long-standing challenge in catalysis. Nanodiamond-based carbon materials were prepared that are surface-doped with electron-rich nitrogen and electron-deficient boron. The two heteroatoms are directly bonded to each other to form unquenched Lewis pairs with infinite pi-electron donation from the surrounding graphitic structure. Remarkably, these Lewis pairs can split H-2 to form H+/H- pairs, which subsequently serve as the active species for hydrogenation of different substrates. This unprecedented finding sheds light on the uptake of H-2 across carbon-based materials and suggests that dual Lewis acidity-basicity on the carbon surface may be used to heterogeneously activate a variety of small molecules.
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