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Highly Dispersed Nickel Nanoparticles on Hierarchically Ordered Macroporous Al2O3 and Its Catalytic Performance for Steam Reforming of 1-Methyl Naphthalene. Catalysts 2022. [DOI: 10.3390/catal12121542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
In this study, we investigate the effect of a hierarchically ordered macroporous structure of alumina support on the steam reforming of 1-methyl naphthalene with mesoporous alumina-supported nickel and potassium (xK/Ni–MeAl), and macroporous alumina-supported nickel and potassium (xK/Ni–MaAl) catalysts. Hierarchically ordered macroporosity in Al2O3 supports plays an important role in maintaining the high Ni dispersion through multiple interactions in Ni–K over AlO4 tetrahedra in alumina. This, in turn, improves the catalytic performance of steam reforming, including high gas yields, turnover frequency for hydrogen production, and 1-methyl naphthalene conversion. At high K content, the Ni active sites over xK/Ni–MeAl catalysts significantly decrease, resulting in almost zero steam reforming rate in the reaction test. Conversely, the potassium–alumina interaction in xK/Ni–MaAl catalysts not only diminishes the formation of the inactive nickel aluminate phase but also maintains the highly dispersed Ni active sites, resulting in a high steam reforming rate.
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Do LT, Shin EW. Reinforcement of steam oxidative cracking of 1-methyl naphthalene by the synergistic combination of hydrogenation and oxidation over nickel-containing mixed oxide catalysts. J Catal 2019. [DOI: 10.1016/j.jcat.2019.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yao D, Wang D, Jin L, Li Y, Yang H, Wang T, Hu H. Preparation of Ce-Mn/Fe 2
O 3
Catalysts for Steam Catalytic Cracking of Coal Tar. ChemistrySelect 2018. [DOI: 10.1002/slct.201802845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Demeng Yao
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Dechao Wang
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Lijun Jin
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Yang Li
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - He Yang
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Tingting Wang
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
| | - Haoquan Hu
- State Key Laboratory of Fine Chemistry; Institute of Coal Chemical Engineering; School of Chemical Engineering; Dalian University of Technology; Dalian 116024 China
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