Materials 2013, 6(6), 2229-2239; doi:10.3390/ma6062229
Article

Hydrogen Production by Steam Reforming of Ethanol over Nickel Catalysts Supported on Sol Gel Made Alumina: Influence of Calcination Temperature on Supports

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Received: 31 January 2013; in revised form: 7 April 2013 / Accepted: 28 April 2013 / Published: 30 May 2013
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.
Abstract: Selecting a proper support in the catalyst system plays an important role in hydrogen production via ethanol steam reforming. In this study, sol gel made alumina supports prepared for nickel (Ni) catalysts were calcined at different temperatures. A series of (Ni/AlS.G.) catalysts were synthesized by an impregnation procedure. The influence of varying the calcination temperature of the sol gel made supports on catalyst activity was tested in ethanol reforming reaction. The characteristics of the sol gel alumina supports and Ni catalysts were affected by the calcination temperature of the supports. The structure of the sol gel made alumina supports was transformed in the order of γ → (γ + θ) → θ-alumina as the calcination temperature of the supports increased from 600 °C to 1000 °C. Both hydrogen yield and ethanol conversion presented a volcano-shaped behavior with maximum values of 4.3 mol/mol ethanol fed and 99.5%, respectively. The optimum values were exhibited over Ni/AlS.G800 (Ni catalyst supported on sol gel made alumina calcined at 800 °C). The high performance of the Ni/AlS.G800 catalyst may be attributed to the strong interaction of Ni species and sol gel made alumina which lead to high nickel dispersion and small particle size.
Keywords: ethanol reforming; hydrogen production; sol gel alumina; nickel catalyst
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MDPI and ACS Style

Yaakob, Z.; Bshish, A.; Ebshish, A.; Tasirin, S.M.; Alhasan, F.H. Hydrogen Production by Steam Reforming of Ethanol over Nickel Catalysts Supported on Sol Gel Made Alumina: Influence of Calcination Temperature on Supports. Materials 2013, 6, 2229-2239.

AMA Style

Yaakob Z, Bshish A, Ebshish A, Tasirin SM, Alhasan FH. Hydrogen Production by Steam Reforming of Ethanol over Nickel Catalysts Supported on Sol Gel Made Alumina: Influence of Calcination Temperature on Supports. Materials. 2013; 6(6):2229-2239.

Chicago/Turabian Style

Yaakob, Zahira; Bshish, Ahmed; Ebshish, Ali; Tasirin, Siti M.; Alhasan, Fatah H. 2013. "Hydrogen Production by Steam Reforming of Ethanol over Nickel Catalysts Supported on Sol Gel Made Alumina: Influence of Calcination Temperature on Supports." Materials 6, no. 6: 2229-2239.

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