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Hydrogen production through glycerol steam reforming over the NiCexAl catalysts

Author

Listed:
  • Jing, Fangli
  • Liu, Shuangfei
  • Wang, Rong
  • Li, Xinyi
  • Yan, Zhao
  • Luo, Shizhong
  • Chu, Wei

Abstract

A series of NiCexAl (x = 0.1, 0.3, 0.5, 0.7 and 0.9) mixed metal oxides catalysts was synthesized through decomposing the corresponding layered double hydroxides (LDH) precursors, and then characterized by TG, XRD, N2 adsorption/desorption, XPS, H2-TPR, H2-TPD etc. techniques. The results showed that the introduction of Ce could efficiently restrict the agglomeration of Ni species. The generated Ni–Ce–O solid solution could create the oxygen vacancies and enhance the oxygen mobility which further improved the properties of active sites including Ni dispersion and surface area, and suppressed coke deposition. The Ni2+ species was reduced by Ce3+ under the reaction conditions to give the metallic Ni as active sites in catalyzing steam reforming of glycerol for the production of hydrogen. The best catalytic performance was obtained over the sample NiCe0.7Al which exhibited the better Ni dispersion and larger surface, and lower quantity of deposited coke by establishing the correlations. The reaction was more selective to hydrogen thanks to the enhancement of water gas shift reaction and suppression of CO methanation reaction.

Suggested Citation

  • Jing, Fangli & Liu, Shuangfei & Wang, Rong & Li, Xinyi & Yan, Zhao & Luo, Shizhong & Chu, Wei, 2020. "Hydrogen production through glycerol steam reforming over the NiCexAl catalysts," Renewable Energy, Elsevier, vol. 158(C), pages 192-201.
    • Handle: RePEc:eee:renene:v:158:y:2020:i:c:p:192-201
    DOI: 10.1016/j.renene.2020.05.044
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    Cited by:

    1. Singh, Piyush Pratap & Jaswal, Anurag & Nirmalkar, Neelkanth & Mondal, Tarak, 2023. "Synergistic effect of transition metals substitution on the catalytic activity of LaNi0.5M0.5O3 (M = Co, Cu, and Fe) perovskite catalyst for steam reforming of simulated bio-oil for green hydrogen pro," Renewable Energy, Elsevier, vol. 207(C), pages 575-587.
    2. Ruocco, Concetta & Palma, Vincenzo & Cortese, Marta & Martino, Marco, 2022. "Stability of bimetallic Ni/CeO2–SiO2 catalysts during fuel grade bioethanol reforming in a fluidized bed reactor," Renewable Energy, Elsevier, vol. 182(C), pages 913-922.

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