Anchoring Cu<sub>1</sub> species over nanodiamond-graphene for semi-hydrogenation of acetylene.
basic_science · Level V
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- Record sourced from PubMed, PMID 31570716.
- Also identified by DOI 10.1038/s41467-019-12460-7 and PMC identifier 6768864.
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Abstract
The design of cheap, non-toxic, and earth-abundant transition metal catalysts for selective hydrogenation of alkynes remains a challenge in both industry and academia. Here, we report a new atomically dispersed copper (Cu) catalyst supported on a defective nanodiamond-graphene (ND@G), which exhibits excellent catalytic performance for the selective conversion of acetylene to ethylene, i.e., with high conversion (95%), high selectivity (98%), and good stability (for more than 60 h). The unique structural feature of the Cu atoms anchored over graphene through Cu-C bonds ensures the effective activation of acetylene and easy desorption of ethylene, which is the key for the outstanding activity and selectivity of the catalyst.