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Production of Hydrogen by Steam Reforming of Ethanol over Pd-Promoted Ni/SiO2 Catalyst

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Abstract

This study investigated the influence of palladium on the catalytic performance of Ni/SiO2 obtained by incipient wetness impregnation method. Ni/SiO2 and Pd–Ni/SiO2 catalysts were tested in the steam reforming of ethanol for hydrogen production. X-ray diffraction, X-ray fluorescence spectroscopy, N2 adsorption–desorption, temperature programmed reduction with hydrogen (H2-TPR) and X-ray photoelectron spectroscopy were used to characterize the catalysts in detail. The incorporation of small amount of palladium into Ni/SiO2 catalyst shifts the reduction of Ni species towards lower temperatures. All catalysts displayed total ethanol conversion and high H2 selectivity (~ 60%) above 500 °C. Compared to other Ni-based catalysts reported in the recent literature, the catalysts here investigated show promising potential for further application in the hydrogen production by ethanol steam reforming, but CO selectivity should be decreased for fuel cell applications.

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Production of hydrogen by steam reforming of ethanol over Pd-promoted Ni/SiO2 catalyst

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Acknowledgements

The authors gratefully thank CNPq (Conselho Nacional de Desenvolvimento Científico) and FAPERJ (Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro) for financial support; RECAT/UFF (Laboratório de Cinética, Catálise e Reatores Químicos da Universidade Federal Fluminense) for XPS analysis; and Jeiveison G.S.S. Maia for the thermodynamics calculations.

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  1. School of Chemistry—Federal University of Rio de Janeiro, P.O. BOX 68542, Rio de Janeiro, 21941-909, Brazil

    Carlos Alberto Chagas & Robinson Luciano Manfro

  2. Chemical Engineering Program of COPPE—Federal University of Rio de Janeiro, P.O. BOX 68502, Rio de Janeiro, 21941-914, Brazil

    Fabio Souza Toniolo

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  1. Carlos Alberto Chagas
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Chagas, C.A., Manfro, R.L. & Toniolo, F.S. Production of Hydrogen by Steam Reforming of Ethanol over Pd-Promoted Ni/SiO2 Catalyst. Catal Lett 150, 3424–3436 (2020). https://doi.org/10.1007/s10562-020-03257-1

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