Catalytic hydrogenation of CO2 to light olefins by using K-doped FeCx catalysts derived from the Fe-chitosan complex

Bo Yan Chen, Galina Dobele, Ance Plavniece, Aleksandrs Volperts, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus, Chi Liang Chen, Yu Chuan Lin

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

K-doped FeCx catalysts derived from the carbothermal reduction of the Fe-chitosan complex were investigated and tested in the hydrogenation of CO2 to light olefins (C2-6=). Catalyst characterization, including bulk composition, porosity, crystallinity, Fe coordination, morphology, surface property, and basicity, was conducted. The physicochemical properties of tested catalysts were correlated with their performances. The mechanistic study discovered that bidentate carbonates, monodentate carbonate, bicarbonate, and formate species were intermediates involved in C2-6= synthesis. The yield of C2-6= was found to be dependent on the composition of the carbide phases of K-doped FeCx catalysts. The most active catalyst, i.e., FeK@CS-(0.5)-py, showed the most promising space-time yield of C2-6= (13.7 μmolC2-6=/gFe/s).

原文English
頁(從 - 到)4276-4286
頁數11
期刊International Journal of Hydrogen Energy
48
發行號11
DOIs
出版狀態Published - 2023 2月 5

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 燃料技術
  • 凝聚態物理學
  • 能源工程與電力技術

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