{"title":"预处理条件对金属-有机骨架负载型钴催化剂结构和催化性能的影响","authors":"Jia-qiang SUN , Shen-ke ZHENG , Jian-gang CHEN","doi":"10.1016/S1872-5813(23)60352-4","DOIUrl":null,"url":null,"abstract":"<div><p>Supported cobalt catalysts (Co@C-ZnZrO<sub>2</sub> and Co/ZnZrO<sub>2</sub>) were prepared through a metal-organic frameworks (MOFs)-mediated synthesis strategy. The influence of MOFs pyrolysis on the structure and Fischer-Tropsch synthesis performance of supported cobalt catalysts was investigated. The crystalline phase and microstructure of supported cobalt catalysts were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), N<sub>2</sub> adsorption-desorption and X-ray photoelectron spectroscopy (XPS). The Co/ZnZrO<sub>2</sub> showed the CO conversion of 18.1% and the C<sub>5+</sub> selectivity of 77.4%, whereas the Co@C-ZnZrO<sub>2</sub> exhibited the CO conversion of 8.5% and the C<sub>5+</sub> selectivity of 35.2%. The excellent CO conversion for Co/ZnZrO<sub>2</sub> was attributed to the more exposure of active Co sites. Meanwhile, the activity of Co sites on Co@C-ZnZrO<sub>2</sub> catalyst was restricted by the carbon layer, suppressing the adsorption and activation of syngas on Co sites.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"51 9","pages":"Pages 1291-1297"},"PeriodicalIF":0.0000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of pretreatment conditions on the structure and catalytic performance of supported cobalt catalysts derived from metal-organic frameworks\",\"authors\":\"Jia-qiang SUN , Shen-ke ZHENG , Jian-gang CHEN\",\"doi\":\"10.1016/S1872-5813(23)60352-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Supported cobalt catalysts (Co@C-ZnZrO<sub>2</sub> and Co/ZnZrO<sub>2</sub>) were prepared through a metal-organic frameworks (MOFs)-mediated synthesis strategy. The influence of MOFs pyrolysis on the structure and Fischer-Tropsch synthesis performance of supported cobalt catalysts was investigated. The crystalline phase and microstructure of supported cobalt catalysts were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), N<sub>2</sub> adsorption-desorption and X-ray photoelectron spectroscopy (XPS). The Co/ZnZrO<sub>2</sub> showed the CO conversion of 18.1% and the C<sub>5+</sub> selectivity of 77.4%, whereas the Co@C-ZnZrO<sub>2</sub> exhibited the CO conversion of 8.5% and the C<sub>5+</sub> selectivity of 35.2%. The excellent CO conversion for Co/ZnZrO<sub>2</sub> was attributed to the more exposure of active Co sites. Meanwhile, the activity of Co sites on Co@C-ZnZrO<sub>2</sub> catalyst was restricted by the carbon layer, suppressing the adsorption and activation of syngas on Co sites.</p></div>\",\"PeriodicalId\":15956,\"journal\":{\"name\":\"燃料化学学报\",\"volume\":\"51 9\",\"pages\":\"Pages 1291-1297\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"燃料化学学报\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1872581323603524\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Energy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"燃料化学学报","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1872581323603524","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Energy","Score":null,"Total":0}
Influence of pretreatment conditions on the structure and catalytic performance of supported cobalt catalysts derived from metal-organic frameworks
Supported cobalt catalysts (Co@C-ZnZrO2 and Co/ZnZrO2) were prepared through a metal-organic frameworks (MOFs)-mediated synthesis strategy. The influence of MOFs pyrolysis on the structure and Fischer-Tropsch synthesis performance of supported cobalt catalysts was investigated. The crystalline phase and microstructure of supported cobalt catalysts were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), N2 adsorption-desorption and X-ray photoelectron spectroscopy (XPS). The Co/ZnZrO2 showed the CO conversion of 18.1% and the C5+ selectivity of 77.4%, whereas the Co@C-ZnZrO2 exhibited the CO conversion of 8.5% and the C5+ selectivity of 35.2%. The excellent CO conversion for Co/ZnZrO2 was attributed to the more exposure of active Co sites. Meanwhile, the activity of Co sites on Co@C-ZnZrO2 catalyst was restricted by the carbon layer, suppressing the adsorption and activation of syngas on Co sites.
期刊介绍：
Journal of Fuel Chemistry and Technology (Ranliao Huaxue Xuebao) is a Chinese Academy of Sciences(CAS) journal started in 1956, sponsored by the Chinese Chemical Society and the Institute of Coal Chemistry, Chinese Academy of Sciences(CAS). The journal is published bimonthly by Science Press in China and widely distributed in about 20 countries. Journal of Fuel Chemistry and Technology publishes reports of both basic and applied research in the chemistry and chemical engineering of many energy sources, including that involved in the nature, processing and utilization of coal, petroleum, oil shale, natural gas, biomass and synfuels, as well as related subjects of increasing interest such as C1 chemistry, pollutions control and new catalytic materials. Types of publications include original research articles, short communications, research notes and reviews. Both domestic and international contributors are welcome. Manuscripts written in Chinese or English will be accepted. Additional English titles, abstracts and key words should be included in Chinese manuscripts. All manuscripts are subject to critical review by the editorial committee, which is composed of about 10 foreign and 50 Chinese experts in fuel science. Journal of Fuel Chemistry and Technology has been a source of primary research work in fuel chemistry as a Chinese core scientific periodical.
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