Hydrogen Production by Steam Reforming of Ethanol over Nickel Catalysts Supported on Sol Gel Made Alumina: Influence of Calcination Temperature on Supports
Abstract
:1. Introduction
2. Experimental Section
2.1. Catalyst Preparation
2.2. Catalyst Characterization
- = Metal dispersion
- = Chemisorption volume (mol g−1)
- = Stoichiometry factor = 1
- = Supported metal atomic weight
- = Supported metal weight, wt %
- = Metal surface area (per g catalyst)
- = Supported metal cross section area = 0.0649 nm atom−1
- = Mean particle diameter (nm)
- = Supported metal density
2.3. Catalyst Performance Test
3. Results and Discussion
3.1. Support Physical Properties
Catalyst name | BET (m2/g) a | Pore volume(cm3/g) b | Pore diameter(nm) c |
---|---|---|---|
AlS.G.600 | 292 | 0.81 | 7.91 |
AlS.G.700 | 230 | 0.67 | 8.46 |
AlS.G.800 | 214 | 0.60 | 9.06 |
AlS.G.900 | 92 | 0.27 | 9.10 |
AlS.G.1000 | 19 | 0.07 | 10.18 |
3.2. Effect of Calcination Temperature on the Structure of the Supports and Supported Ni Catalysts
3.3. Metal–Support Interaction
3.4. Hydrogen Chemisorption Measurements
Catalyst name | Amount of H2 uptake (μmol g−1) | Nickel dispersion (%) * | Nickel surface area (m2 g−1) * | Mean particle diameter (nm) |
---|---|---|---|---|
Ni/AlS.G.600 | 45 | 4.40 | 1.75 | 22.9 |
Ni/AlS.G.700 | 254 | 24.8 | 9.90 | 4.1 |
Ni/AlS.G.800 | 566 | 55.4 | 22.1 | 1.8 |
Ni/AlS.G.900 | 489 | 47.8 | 19.1 | 2.1 |
Ni/AlS.G.1000 | 310 | 30.3 | 12.1 | 3.3 |
3.5. Steam Reforming of Ethanol over the Supported Ni Catalysts
Catalyst name | Amount of carbon deposition (wt %) |
---|---|
Ni/AlS.G.600 | 0.26 |
Ni/AlS.G.700 | 0.20 |
Ni/AlS.G.800 | 0.14 |
Ni/AlS.G.900 | 0.11 |
Ni/AlS.G.1000 | 0.68 |
4. Conclusions
Acknowledgments
References
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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. https://doi.org/10.3390/ma6062229
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. https://doi.org/10.3390/ma6062229
Chicago/Turabian StyleYaakob, Zahira, Ahmed Bshish, Ali Ebshish, Siti Masrinda Tasirin, and Fatah H. Alhasan. 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. https://doi.org/10.3390/ma6062229