联系我们
意见反馈

关注公众号

获得最新科研资讯

简历详情
谢在来
  邮箱   xiezl@fzu.edu.cn 
论文

Surface Chemistry and Catalytic Reactivity of Borocarbonitride in Oxidative Dehydrogenation of Propane

AbstractBorocarbonitride (BCN) materials are newly developed oxidative dehydrogenation catalysts that can efficiently convert alkanes to alkenes. However, BCN materials tend to form bulky B2O3 due to over‐oxidation at the high reaction temperature, resulting in significant deactivation. Here, we report a series of super stable BCN nanosheets for the oxidative dehydrogenation of propane (ODHP) reaction. The catalytic performance of the BCN nanosheets can be easily regulated by changing the guanine dosage. The control experiment and structural characterization indicate that the introduction of a suitable amount of carbon could prevent the formation of excessive B2O3 from BCN materials and maintain the 2D skeleton at a high temperature of 520 °C. The best‐performing catalyst BCN exhibits 81.9 % selectivity towards olefins with a stable propane conversion of 35.8 %, and the propene productivity reaches 16.2 mmol h−1 g−1, which is much better than hexagonal BN (h‐BN) catalysts. Density functional theory calculation results show that the presence of dispersed rather than aggregated carbon atoms can significantly affect the electronic microenvironment of h‐BN, thereby boosting the catalytic activity of BCN.

期刊: Angewandte Chemie  2023
作者: Guangming Wang,Shunhua Chen,Qiwei Duan,Fenfei Wei,Sen Lin,Zailai Xie
DOI:10.1002/ange.202307470

Guanosine-derived atomically dispersed Cu-N3-C sites for efficient electroreduction of carbon dioxide

期刊: Journal of Colloid and Interface Science  2023
作者: Shuo Chen,Miao Xia,Xuefei Zhang,Lisun Pei,Zijia Li,Xin Ge,Mei-Jin Lin,Wei Zhang,Zailai Xie
DOI:10.1016/j.jcis.2023.05.100

A generalized approach to adjust the catalytic activity of borocarbonitride for alkane oxidative dehydrogenation reactions

期刊: Journal of Catalysis  2022
作者: Xuefei Zhang,Xueya Dai,Kuang-Hsu Wu,Bingjian Su,Jinming Chen,Wei Qi,Zailai Xie
DOI:10.1016/j.jcat.2021.11.036

Role of carbon quantum dots on Nickel titanate to promote water oxidation reaction under visible light illumination

期刊: Journal of Colloid and Interface Science  2022
作者: Long Wang,Pingru Cai,Zuozhen Liu,Zailai Xie,Yuanxing Fang
DOI:10.1016/j.jcis.2021.08.196

New insight into structural transformations of borocarbonitride in oxidative dehydrogenation of propane

期刊: Applied Catalysis A: General  2021
作者: Guangming Wang,Xuefei Zhang,Yao Yan,Xing Huang,Zailai Xie
DOI:10.1016/j.apcata.2021.118402

主页访问量:52