Improvements in hydrogen production from methane dry reforming on filament-shaped mesoporous alumina-supported cobalt nanocatalyst. (13th July 2021)

• Record Type: Journal Article
• Authors: 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; Vo, Dai-Viet N.
• Is Part Of: International journal of hydrogen energy. Volume 46:Number 48(2021)
• Page Start: 24781
• Page End: 24790
• Publication Date: 2021-07-13
• Subjects: Mesoporous alumina -- Cobalt catalyst -- Hydrogen -- Syngas -- Methane dry reforming; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.06.142
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The mesoporous gamma-alumina (γ-Al2 O3 ) synthesized via evaporation-induced self-assembly method (EISA) using inorganic salt, Al(NO3 )3 ·9H2 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-Al2 O3 support possessed filament-shaped morphology with surface area of 173.4 m 2 g −1 and cobalt nanoparticles were successfully dispersed on support with small crystallite size of 7.8 nm. The stability of 10%Co/Al2 O3 was evident for CH4 and CO2 conversions at 1023 and 1073 K. CH4 conversion could reach to 76.2% while 81.6% was observed for CO2 conversion at 1073 K. Although graphitic and amorphous carbons were unavoidably formed on used catalyst, 10%Co/Al2 O3 exhibited an outstanding performance comparable to noble metals with the desired ratio of H2 /CO for downstream Fischer-Tropsch process. Graphical abstract: Image 1 Highlights: Filament-shaped Al2 O3 was synthesized by evaporation-induced self-assembly method. 10%Co/Al2 O3 exhibited a comparable activity to noble catalysts. H2 /CO ratio from methane dry reforming was obtained from 0.6 to 0.9.