دورية أكاديمية
Carbon Materials Based on Sulfur-containing Petroleum Coke and Their Application as Anode Materials for Bunsen Reaction Products
| العنوان: | Carbon Materials Based on Sulfur-containing Petroleum Coke and Their Application as Anode Materials for Bunsen Reaction Products |
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| المؤلفون: | Jiawei WANG, Weiren BAO, Liping CHANG, Hui WANG, Ke ZHANG, Xiaoling LI |
| المصدر: | Taiyuan Ligong Daxue xuebao, Vol 53, Iss 2, Pp 207-214 (2022) |
| بيانات النشر: | Editorial Office of Journal of Taiyuan University of Technology, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Chemical engineering LCC:Materials of engineering and construction. Mechanics of materials LCC:Technology |
| مصطلحات موضوعية: | electrolysis, carbon materials, activation, doping, iodide, Chemical engineering, TP155-156, Materials of engineering and construction. Mechanics of materials, TA401-492, Technology |
| الوصف: | Four kinds of petroleum coke with different sulfur content were used as raw materials to prepare sulfur and nitrogen co-doped carbon materials by potassium hydroxide activation. The microstructure, graphitization degree, pore size structure, and surface element state of the prepared materials were characterized and analyzed. Four carbon-based materials prepared by petroleum cokes with different sulfur content were applied as HI (1 mol/L) +H2SO4 (0.5 mol/L) solution electrolytic anode materials. The electrochemical properties of their electrocatalytic I- oxidation to I2/I3- were investigated. The electrochemical properties of the materials, such as cyclic voltammetry, linear scanning, and AC impedance, were studied. Combined with the characterization results, the effect of nitrogen and sulfur doping on catalytic oxiding of I- was discussed. It was concluded that pyridine nitrogen could be used as the catalytic active center. Meanwhile, S in graphitic plane network structure could induce polarization of adjacent C and N atoms, and a new electrocatalytically active center is formed. More mesoporous pores contribute to the dissolution and diffusion of I3- ions from electrode surface into solution. The carbon material prepared with sulfur content of 4.6% has the highest pyridine-N content, and the larger average pore size is conducive to the diffusion of I3- ions, so the corresponding electrochemical activity is optimum. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Chinese |
| تدمد: | 1007-9432 54138965 |
| Relation: | https://tyutjournal.tyut.edu.cn/englishpaper/show-1690.html; https://doaj.org/toc/1007-9432 |
| DOI: | 10.16355/j.cnki.issn1007-9432tyut.2022.02.003 |
| URL الوصول: | https://doaj.org/article/eda0ae4c43c541389650de4e7ff1453c |
| رقم الأكسشن: | edsdoj.0ae4c43c541389650de4e7ff1453c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10079432 54138965 |
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| DOI: | 10.16355/j.cnki.issn1007-9432tyut.2022.02.003 |