MOF-derived carbon-containing Fe doped porous CoP nanosheets towards hydrogen evolution reaction and hydrodesulfurization. (28th September 2021)

• Record Type: Journal Article
• Authors: Wen, Chen; Chen, Ligang; Xie, Yating; Bai, Jingying; Liang, Xin
• Is Part Of: International journal of hydrogen energy. Volume 46:Number 67(2021)
• Page Start: 33420
• Page End: 33428
• Publication Date: 2021-09-28
• Subjects: Transition metal phosphide -- Nanosheet -- Hydrogen evolution reaction -- Hydrodesulfurization; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2021.07.180
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In order to explore the effect of Fe doped CoP nanosheets on both hydrogen evolution reaction (HER) and hydrodesulfurization (HDS), FeCoP/C nanosheets have been successfully synthesized by the solvothermal process with Fe doped ZIF-67/C for the growth of FeCo-hydroxides nanosheets, as well as a following low-temperature phosphorization process. The performance evaluation results show that the FeCoP/C nanosheet exhibits an excellent acidic HER performance and an ordinary HDS performance compared to CoP/C and FeP/C catalysts. Experimental characterization and density functional theory results show that the high HER activity of the FeCoP/C nanosheet can be attributed to the fact that the nanosheet structure facilitates the exposure of active sites and the doped Fe atoms make CoP have a suitable hydrogen adsorption energy, while the ordinary HDS activity of the FeCoP/C nanosheet can be attributed to the fact that the doped Fe atoms can inhibit the cleavage of C–S bonds by CoP. Graphical abstract: Image 1 Highlights: FeCoP/C nanosheet is synthesized by hydrothermal and phosphating treatment of ZIF-67. FeCoP/C nanosheet exhibits an excellent acidic HER and ordinary HDS performance. FeCoP/C nanosheet has a high ECSA and suitable hydrogen adsorption energy. The ordinary HDS performance is due to the normal activation energy for the C–S bond.