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Catalysts 2015, 5(4), 1721-1736; doi:10.3390/catal5041721

Significantly Improved Catalytic Performance of Ni-Based MgO Catalyst in Steam Reforming of Phenol by Inducing Mesostructure

College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
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Author to whom correspondence should be addressed.
Academic Editor: Keith Hohn
Received: 6 September 2015 / Accepted: 13 October 2015 / Published: 16 October 2015
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Abstract

A Ni/meso-MgO catalyst with high surface area and small Ni nanoparticles was synthesized and investigated for hydrogen production by steam reforming of phenol for the first time. Compared to conventional Ni/MgO, the Ni/meso-MgO catalyst showed higher catalytic activity and stability. X-ray Diffraction, N2 adsorption, hydrogen temperature programmed reduction, transmission electron microscopy and thermal gravimetry results indicated that the Ni/meso-MgO catalyst had higher surface area than Ni/MgO and Ni particles of Ni/meso-MgO were narrowly distributed in the range of 5~6 nm with an average size of 5.3 nm, while Ni particles of Ni/MgO were in the range of 6~10 nm with an average size of 7.92 nm. The small and uniform Ni nanoparticles in Ni/meso-MgO were attributed to the high surface area and the confinement effect of the mesoporous structure of meso-MgO, which could effectively limit the growth of the active metal and stabilize Ni particles during the procedure of NiO reduction. The mesoporous structure of Ni/meso-MgO also played an important role in suppressing Ni nanoparticle sintering and carbon deposition during the steam reforming of phenol reaction. View Full-Text
Keywords: mesoporous MgO; Ni/MgO catalyst; confinement effect; steam reforming of phenol; hydrogen production mesoporous MgO; Ni/MgO catalyst; confinement effect; steam reforming of phenol; hydrogen production
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MDPI and ACS Style

Yang, X.; Wang, Y.; Wang, Y. Significantly Improved Catalytic Performance of Ni-Based MgO Catalyst in Steam Reforming of Phenol by Inducing Mesostructure. Catalysts 2015, 5, 1721-1736.

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