Figshare最新文献

筛选

英文中文

Selective Production of Aromatics Directly from CarbonnDioxide Hydrogenation 直接由二氧化碳加氢选择性生产芳烃

Figshare Pub Date : 2019-04-02 DOI: 10.1021/acscatal.9b00640.s001

Xu Cui (261214), Peng Gao (35465), Shenggang Li (1400269), Chengguang Yang (1847002), Ziyu Liu (2566468), Hui Wang (30400), Liangshu Zhong (1897363), Yuhan Sun (299077)

{"title":"Selective Production of Aromatics Directly from CarbonnDioxide Hydrogenation","authors":"Xu Cui (261214), Peng Gao (35465), Shenggang Li (1400269), Chengguang Yang (1847002), Ziyu Liu (2566468), Hui Wang (30400), Liangshu Zhong (1897363), Yuhan Sun (299077)","doi":"10.1021/acscatal.9b00640.s001","DOIUrl":"https://doi.org/10.1021/acscatal.9b00640.s001","url":null,"abstract":"Conversionnof carbon dioxide (CO2) to fuels and chemicalsnwith the help of renewable hydrogen (H2) is a very attractivenapproach to reduce CO2 emissions and replace dwindlingnfossil fuels. However, it is still a great challenge to synthesizenaromatics directly from CO2 hydrogenation, because CO2 is thermodynamically very stable, and the aromatics are highlynunsaturated products with complex structures. Here, we demonstratenthat the combination of the sodium-modified spinel oxide ZnFeOx, which alone shows excellentnperformance for CO2 hydrogenation to olefins, and hierarchicalnnanocrystalline HZSM-5 aggregates can realize a highly efficient synthesisnof aromatics directly from CO2 and H2. The maximumnof aromatics selectivity was up to 75.6% among all hydrocarbons atn41.2% CO2 conversion. Additionally, the selectivity towardnCO and CH4 is usually less than 20% over this catalystnsystem. The suitable amount of the residual sodium, hierarchical porenstructure, and appropriate density of Brønsted acid sites endownthe composite catalyst with an outstanding aromatics yield and highncatalytic stability.","PeriodicalId":523131,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0