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Catalysts 2013, 3(2), 563-583; doi:10.3390/catal3020563
Article

Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems

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Received: 9 April 2013; in revised form: 22 May 2013 / Accepted: 30 May 2013 / Published: 5 June 2013
(This article belongs to the Special Issue New Trends in Gold Catalysts)
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Abstract: Steam reforming of light hydrocarbons provides a promising method for hydrogen production. Ni-based catalysts are so far the best and the most commonly used catalysts for steam reforming because of their acceptably high activity and significantly lower cost in comparison with alternative precious metal-based catalysts. However, nickel catalysts are susceptible to deactivation from the deposition of carbon, even when operating at steam-to-carbon ratios predicted to be thermodynamically outside of the carbon-forming regime. Reactivity and deactivation by carbon formation can be tuned by modifying Ni surfaces with a second metal, such as Au through alloy formation. In the present review, we summarize the very recent progress in the design, synthesis, and characterization of supported bimetallic Ni-based catalysts for steam reforming. The progress in the modification of Ni with noble metals (such as Au and Ag) is discussed in terms of preparation, characterization and pretreatment methods. Moreover, the comparison with the effects of other metals (such as Sn, Cu, Co, Mo, Fe, Gd and B) is addressed. The differences of catalytic activity, thermal stability and carbon species between bimetallic and monometallic Ni-based catalysts are also briefly shown.
Keywords: hydrocarbons steam reforming; nickel; gold; bimetallic; surface alloy; support modification hydrocarbons steam reforming; nickel; gold; bimetallic; surface alloy; support modification
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wu, H.; La Parola, V.; Pantaleo, G.; Puleo, F.; Venezia, A.M.; Liotta, L.F. Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems. Catalysts 2013, 3, 563-583.

AMA Style

Wu H, La Parola V, Pantaleo G, Puleo F, Venezia AM, Liotta LF. Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems. Catalysts. 2013; 3(2):563-583.

Chicago/Turabian Style

Wu, Hongjing; La Parola, Valeria; Pantaleo, Giuseppe; Puleo, Fabrizio; Venezia, Anna M.; Liotta, Leonarda F. 2013. "Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems." Catalysts 3, no. 2: 563-583.


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