Methane decomposition to produce pure hydrogen and carbon nano materials over FeM catalysts

被引：0
|
作者：
Qian J. [1 ]
Chen T. [1 ]
Liu D. [1 ]
Zhou L. [1 ]
机构：
[1] School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 11期
关键词：
Carbon nano materials; Catalyst; Decomposition; Hydrogen production; Methane;
D O I：
10.16085/j.issn.1000-6613.2020-2226
中图分类号：
学科分类号：
摘要：
A series of FexMy (M=Mo, Cu, W) bimetallic catalysts were prepared by the fusion method using iron, molybdenum, copper and tungsten nitrate as raw materials. Fe15M1 (M=Mo, Cu, W) bimetallic catalysts were synthesized to investigate their catalytic decomposition of methane (CDM) activity. Results indicated that the catalytic activity of Fe15Mo1 was much higher than that of Fe15Cu1 and Fe15W1. The physical characteristics, structural composition, reduction characteristics and the graphitization of by-product carbon nano materials (CNMs) were characterized by means of specific surface area (BET), X‑ray powder diffraction (XRD), H2 temperature programmed reduction (H2-TPR) and Raman spectra, respectively. Then, the effects of Mo doping and calcination temperature on the methane conversion and carbon yield over the FexMoy catalysts for CDM were further investigated. It was found that, the Fe1Mo1 catalyst had the best catalytic activity and stability, and its carbon yield (6gC/gcat) was higher than that of pure Fe (4.35gC/gcat). XRD and X-ray photoelectron spectroscopy (XPS) results showed that Fe2(MoO4)3 phase was formed in Fe1Mo1, which increased the catalytic activity and stability. Transmission electron microscope (TEM) results indicated that the deposited CNMs over the spent Fe1Mo1 catalyst were bamboo-like carbon nano tubes. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：6102 / 6112
页数：10
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  • [1] IBRAHIM A A, AL-FATESH A S, KHAN W U, Et al., Influence of support type and metal loading in methane decomposition over iron catalyst for hydrogen production, Journal of the Chinese Chemical Society, 62, 7, pp. 592-599, (2015)
  • [2] WANG Di, HU Yan, GAO Weimin, Et al., Progress of methane catalytic decomposition for hydrogen and carbon nanomaterials production, Chemical Industry and Engineering Progress, 37, S1, pp. 80-93, (2018)
  • [3] PENG Qiao, The preparation of methane cracking catalyst for hydrogen production and its performance and simulation studies, (2016)
  • [4] AL-FATESH A S, IBRAHIM A A, ALSHAREKH A M, Et al., Methane decomposition over strontium promoted iron catalyst: effect of different ratio of Al/Si support on hydrogen yield, Chemical Engineering Communications, 207, 8, pp. 1148-1156, (2020)
  • [5] PUDUKUDY M, YAAKOB Z, JIA Q M, Et al., Catalytic decomposition of methane over rare earth metal (Ce and La) oxides supported iron catalysts, Applied Surface Science, 467, 468, pp. 236-248, (2019)
  • [6] GENG S, HAN Z, HU Y, Et al., Methane decomposition kinetics over Fe<sub>2</sub>O<sub>3</sub> catalyst in micro fluidized bed reaction analyzer, Industrial & Engineering Chemistry Research, 57, 25, pp. 8413-8423, (2018)
  • [7] KARAISMAILOGLU M, FIGEN H E, BAYKARA S Z., Hydrogen production by catalytic methane decomposition over yttria doped nickel based catalysts, International Journal of Hydrogen Energy, 44, 20, pp. 9922-9929, (2019)
  • [8] UPHAM D C, AGARWAL V, KHECHFE A, Et al., Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon, Science, 358, 6365, pp. 917-921, (2017)
  • [9] ASHIK U P M, WAN DAUD W M A, ABBAS H F., Production of greenhouse gas free hydrogen by thermocatalytic decomposition of methane-A review, Renewable and Sustainable Energy Reviews, 44, pp. 221-256, (2015)
  • [10] QIAN J X, CHEN T W, ENAKONDA L R, Et al., Methane decomposition to pure hydrogen and carbon nano materials: state-of-the-art and future perspectives, International Journal of Hydrogen Energy, 45, 32, pp. 15721-15743, (2020)
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