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Zhang W, Zhao H, Song H, Chou L. Unbounding the Future: Designing NiAl-Based Catalysts for Dry Reforming of Methane. Chem Asian J 2024; 19:e202400503. [PMID: 38842469 DOI: 10.1002/asia.202400503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
Dry reforming of methane (DRM), the catalytic conversion of CH4 and CO2 into syngas (H2+CO), is an important process closely correlated to the environment and chemical industry. NiAl-based catalysts have been reported to exhibit excellent activity, low cost, and environmental friendliness. At the same time, the rapid deactivation caused by carbon deposition, Ni sintering, and phase transformation exerts great challenges for its large-scale applications. This review summarizes the recent advances in NiAl-based catalysts for DRM, particularly focusing on the strategies to construct efficient and stable NiAl-based catalysts. Firstly, the thermodynamics and elementary steps of DRM, including the activation of reactants and coke formation and elimination, are summarized. The roles of Al2O3 and its mixed oxides as the support, and the influences of the promoters employed in NiAl-based catalysts over the DRM performance, are then illustrated. Finally, the design of anti-coking and anti-sintering NiAl-based catalysts for DRM is suggested as feasible and promising by tailoring the structure and states of Ni and the modification of Al-based supports including small Ni size, high Ni dispersion, proper basicity, strong metal-support interaction (SMSI), active oxygen species as well as high phase stability.
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Affiliation(s)
- Wenzheng Zhang
- Wenzheng Zhang, Huahua Zhao, Huanling Song, Lingjun Chou, State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
- Wenzheng Zhang, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huahua Zhao
- Wenzheng Zhang, Huahua Zhao, Huanling Song, Lingjun Chou, State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
| | - Huanling Song
- Wenzheng Zhang, Huahua Zhao, Huanling Song, Lingjun Chou, State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
| | - Lingjun Chou
- Wenzheng Zhang, Huahua Zhao, Huanling Song, Lingjun Chou, State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
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Zang Y, Zhang Z, Qu J, Gao F, Gu J, Wei T, Lin X. K-guided selective regulation mechanism for CO 2 hydrogenation over Ni/CeO 2 catalyst. J Colloid Interface Sci 2024; 658:167-178. [PMID: 38100973 DOI: 10.1016/j.jcis.2023.12.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/01/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Regulating the selectivity between CO and CH4 during CO2 hydrogenation is a challenging research topic. Previous research has indicated that potassium (K) modification can adjust the product selectivity by regulating the adsorption strength of formate/CO* intermediates. Going beyond the regulation mechanism described above, this study proposes a K-guided selectivity control method based on the regulation of key intermediates HCO*/H3CO* for Ni catalysts supported on reducible carrier CeO2. By incorporating K, the CO selectivity of CO2 hydrogenation shifts from around 25.4% for Ni/CeO2 to approximately 93.8% for Ni/CeO2-K. This can be attributed to K modification causes electron aggregation in the bonding regions of HCO* and H3CO* intermediates, thus enhancing their adsorption strength. Consequently, the reaction pathway from HCO*/H3CO* to CH4 is limited, favoring the decomposition of formates to CO products. Moreover, the addition of K leads to a moderate decrease in CO2 conversion from 55.2% to 48.6%, which still surpasses values reported in most other studies. This reduction is associated with a decline in reducible Ni species and oxygen vacancy concentration in Ni/CeO2-K. As a result, the adsorption capacity for CO2 and H2 reduces, ultimately reducing CO2 hydrogenation activity.
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Affiliation(s)
- Yunhao Zang
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China
| | - Ziyi Zhang
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China
| | - Jiangying Qu
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China.
| | - Feng Gao
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China.
| | - Jianfeng Gu
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China
| | - Taipeng Wei
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China
| | - Xuetan Lin
- Dongguan Key Laboratory of Low-Carbon Recycling and Utilization, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, PR China
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Bian H, Gani TZH, Liu J, Hondo E, Lim KH, Zhang T, Li D, Liu SF, Yan J, Kawi S. Ni nanoparticles supported on Al 2O 3 + La 2O 3 yolk-shell catalyst for photo-assisted thermal decomposition of methane. J Colloid Interface Sci 2023; 643:151-161. [PMID: 37058890 DOI: 10.1016/j.jcis.2023.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/16/2023]
Abstract
Catalytic methane decomposition (CMD) has emerged as an appealing technology for large-scale production of H2 and carbon nanostructures from natural gas. As the CMD process is mildly endothermic, the application of concentrated renewable energy sources such as solar energy under a low-temperature regime could potentially represent a promising approach towards CMD process operation. Herein, Ni/Al2O3-La2O3 yolk-shell catalysts are fabricated using a straightforward single-step hydrothermal approach and tested for their performance in photothermal CMD. We show that the morphology of the resulting materials, dispersion and reducibility of Ni nanoparticles, and nature of metal-support interactions can be tuned by addition of varying amounts of La. Notably, the addition of an optimal amount of La (Ni/Al-20La) improved the H2 yield and catalyst stability relative to the base Ni/Al2O3 material, while also favoring base growth of carbon nanofibers. Additionally, we show for the first time a photothermal effect in CMD, whereby the introduction of 3 suns light irradiation at a constant bulk temperature of 500 °C reversibly increased the H2 yield of catalyst by about 1.2 times relative to the rate in the dark, accompanied by a decrease in apparent activation energy from 41.6 kJ mol-1 to 32.5 kJ mol-1. The light irradiation further suppressed undesirable CO co-production at low temperatures. Our work reveals photothermal catalysis as a promising route for CMD while providing an insightful understanding of the roles of modifier in enriching methane activation sites on Al2O3-based catalysts.
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Affiliation(s)
- Hui Bian
- School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Terry Z H Gani
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Jiaolong Liu
- School of Physics, Xidian University, Xian 710071, P.R. China
| | - Emmerson Hondo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Kang Hui Lim
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Tianxi Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore
| | - Deng Li
- School of Materials Science and Engineering, Shaanxi Engineering Lab for Advanced Energy Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Shengzhong Frank Liu
- School of Materials Science and Engineering, Shaanxi Engineering Lab for Advanced Energy Technology, Shaanxi Normal University, Xi'an 710119, China; Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junqing Yan
- School of Materials Science and Engineering, Shaanxi Engineering Lab for Advanced Energy Technology, Shaanxi Normal University, Xi'an 710119, China.
| | - Sibudjing Kawi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore.
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Jin G, Li K, Zhang L, Luo Y, Chen D, He D. In situ observation of the promoting effect of H2S on the formation of efficient MoS2 catalyst for CH4/CO2 reforming. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zhang X, Deng J, Lan T, Shen Y, Qu W, Zhong Q, Zhang D. Coking- and Sintering-Resistant Ni Nanocatalysts Confined by Active BN Edges for Methane Dry Reforming. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25439-25447. [PMID: 35604327 DOI: 10.1021/acsami.2c04149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Methane dry reforming (MDR) has attracted significant attention for effectively consuming greenhouse gases and producing valuable syngas. The development of coking- and sintering-resistant catalysts is still a challenge. Herein, highly active Ni nanocatalysts confined by the active edges of boron nitride have been originally developed, and the coking- and sintering-resistant MDR mechanism has also been unraveled. The active edges of boron nitride consisted of boundary BOx species interact with Ni nanoparticles (NPs), which can contribute to the activation of both CH4 and CO2. The etching of BN is restrained under the buffer of boundary BOx species. Operando spectra reveal that the formation and conversion of active bicarbonate species is accelerated by the boundary BOx species. The complete decomposition of CH4 is suppressed, and thus the coke formation is restricted. The functional groups of active BN edges are confirmed to stabilize the Ni NPs and facilitate the MDR reaction. This work provides a novel approach for the development of coking- and sintering-resistant catalysts for MDR.
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Affiliation(s)
- Xiaoyu Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Jiang Deng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Tianwei Lan
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Yongjie Shen
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Wenqiang Qu
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Qingdong Zhong
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, College of Sciences, Shanghai University, 200444 Shanghai, China
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