Journal
NEW JOURNAL OF CHEMISTRY
Volume 46, Issue 17, Pages 8138-8143Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nj05866e
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Funding
- Open Program of Tianjin Key Laboratory of Green Chemical Engineering Process Engineering [GCEPE20190102]
- Hebei Provincial Department of Science and Technology [216Z1403G]
- National Natural Science Foundation of China [21978208]
- Natural Science Foundation of Hebei Province [B2019201341]
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CeO2-promoted Co-N-C hybrids were prepared using the strategy of solid solution construction and exhibited satisfactory performance and stability in catalytic reactions, with improved resistance to sulfur poisoning.
A series of CeO2-promoted Co-N-C hybrids were prepared by the strategy of solid solution construction, systematically characterized, and applied in the catalytic deoxygenation of sulfoxide with H-2 successfully. According to the research findings, the activity of the hybrids was closely correlated with the content of CeO2, and the Ce-O-Co solid solution observed in the CoCe/N-C hybrids was conducive to the Co species dispersion. Among all the hybrids, the catalyst with the appropriate CeO2 content (CoCe3/N-C) presented satisfactory performance in the above reaction, and attained 99.67% yield of methyl phenyl sulfoxide. Recycling experiments showed that the hybrid exhibited excellent stability and resistance to sulfur poisoning compared with the commercial Pd/C catalyst. Obviously, this work provides a novel strategy for the construction of transition metal and nitrogen co-doped carbon (M-N-C) catalysts with high metal utilization and high stability, while also improving the resistance to sulfur poisoning of metal catalysts.
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