1. Improvements in hydrogen production from methane dry reforming on filament-shaped mesoporous alumina-supported cobalt nanocatalyst.
- Author
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Tran, Ngoc Thang, Le Minh Pham, Thong, Nguyen, Trinh Duy, Van Cuong, Nguyen, Siang, Tan Ji, Phuong, Pham T.T., Jalil, A.A., Truong, Quang Duc, Abidin, Sumaiya Zainal, Hagos, Ftwi Y., Nanda, Sonil, and Vo, Dai-Viet N.
- Subjects
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STEAM reforming , *HYDROGEN production , *CATALYST supports , *METHANE , *PRECIOUS metals , *CARBON dioxide , *FISCHER-Tropsch process , *COBALT - Abstract
The mesoporous gamma-alumina (γ-Al 2 O 3) synthesized via evaporation-induced self-assembly method (EISA) using inorganic salt, Al(NO 3) 3 ·9H 2 O precursor and water-ethanol solvent mixture was implemented as a support for Co catalyst in methane dry reforming at 973–1073 K under 1 atm. The γ-Al 2 O 3 support possessed filament-shaped morphology with surface area of 173.4 m2 g−1 and cobalt nanoparticles were successfully dispersed on support with small crystallite size of 7.8 nm. The stability of 10%Co/Al 2 O 3 was evident for CH 4 and CO 2 conversions at 1023 and 1073 K. CH 4 conversion could reach to 76.2% while 81.6% was observed for CO 2 conversion at 1073 K. Although graphitic and amorphous carbons were unavoidably formed on used catalyst, 10%Co/Al 2 O 3 exhibited an outstanding performance comparable to noble metals with the desired ratio of H 2 /CO for downstream Fischer-Tropsch process. [Display omitted] • Filament-shaped Al 2 O 3 was synthesized by evaporation-induced self-assembly method. • 10%Co/Al 2 O 3 exhibited a comparable activity to noble catalysts. • H 2 /CO ratio from methane dry reforming was obtained from 0.6 to 0.9. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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