期刊
RSC ADVANCES
卷 5, 期 9, 页码 6259-6264出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra09269d
关键词
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资金
- National Natural Science Foundation of China [21103045, 1210040, 1103312]
- Fundamental Research Funds for the Central Universities
In this study, Co-N-C supported on silica spheres is prepared through heat-treatment of supported metalloporphyrin in an N-2 atmosphere. The catalytic performance of the catalysts for ethylbenzene oxidation is investigated and these catalysts are characterized by techniques such as BET, FT-IR, UV-vis, TEM and XPS. In comparison with other catalysts such as supported cobalt porphyrin and unsupported cobalt porphyrin, Co-N-C supported on silica spheres shows much higher catalytic activity for ethylbenzene oxidation (15.7%) and selectivity to acetophenone (76.5%). In addition, the catalyst can retain its high catalytic activity after several reuses. The results show that the high catalytic performance of the catalyst may be attributed to the formation of Co-N-4-C sites during the heat-treatment and supported Co-N-C catalysts may be beneficial to yield more Co-N-4-C sites.
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