Petroleum Science >2022, lssue 4: - DOI: https://doi.org/10.1016/j.petsci.2022.04.005.
Catalytic oxidation of pentanethiol on basic nitrogen doped carbon hollow spheres derived from waste tires Open Access
文章信息
作者：Jing Luo, Wen-Feng Zhang, Yan-Chen Wei, Ji-Xing Liu, Chao Wang, Yi-Ru Zou, Hai-Tao Ju, Li-Ping Mu, Yan-Hong Chao, Hong-Bing Ji, Wen-Shuai Zhu
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引用方式：Jing Luo, Wen-Feng Zhang, Yan-Chen Wei, Ji-Xing Liu, Chao Wang, Yi-Ru Zou, Hai-Tao Ju, Li-Ping Mu, Yan-Hong Chao, Hong-Bing Ji, Wen-Shuai Zhu, Catalytic oxidation of pentanethiol on basic nitrogen doped carbon hollow spheres derived from waste tires, Petroleum Science, Volume 19, Issue 4, 2022, Pages 1888-1896, https://doi.org/10.1016/j.petsci.2022.04.005.
文章摘要
Abstract: A series of basic nitrogen doped carbon hollow spheres (p-N-C) catalysts derived from waste tires were prepared by a green, facile and environmental “leavening” strategy for the catalytic oxidation of pentanethiol. Compared to pristine carbon, the p-N-C has a higher surface curvature conducive to the enrichment of substrates, leading to an excellent catalytic performance. This increased surface curvature of p-N-C was fabricated on the synergistic effect of two foaming agents ((NH4)2C2O4 and NaHCO3), and the released gas also endows the spherical shell of p-N-C with a hierarchical porous structure, promoting the accessibility of active sites with pentanethiol. Pyridine-like and pyrrolic-like nitrogen atoms were investigated as reactive sites on the p-N-C to accelerate the electron transfer from sulfur to active surface oxygen and enhance the adsorption/oxidation process. As a result, the optimal p-N-C catalyst exhibits superior adsorption and oxidation performance (99.9%) of pentanethiol, outperforming the “unleavened” catalyst (20.8%). This work offers a new avenue for the fabrication of highly efficient materials for the desulfurization of fuel.
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Keywords: Carbon hollow spheres; Nitrogen-doping; Waste tires; Leavening strategy; Pentanethiol