1
|
Cheng Q, Yao X, Ou L, Hu Z, Zheng L, Li G, Morlanes N, Cerrillo JL, Castaño P, Li X, Gascon J, Han Y. Highly Efficient and Stable Methane Dry Reforming Enabled by a Single-Site Cationic Ni Catalyst. J Am Chem Soc 2023; 145:25109-25119. [PMID: 37947830 DOI: 10.1021/jacs.3c04581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Zeolite-supported nickel (Ni) catalysts have been extensively studied for the dry reforming of methane (DRM). It is generally believed that prior to or during the reaction, Ni is reduced to a metallic state to act as the catalytic site. Here, we employed a ligand-protected synthesis method to achieve a high degree of Ni incorporation into the framework of the MFI zeolite. The incorporated Ni species retained their cationic nature during the DRM reaction carried out at 600 °C, exhibiting higher apparent catalytic activity and significantly greater catalytic stability in comparison to supported metallic Ni particles at the same loading. From theoretical and experimental evidence, we conclude that the incorporation of Ni into the zeolite framework leads to the formation of metal-oxygen (Niδ+-O(2-ξ)-) pairs, which serve as catalytic active sites, promoting the dissociation of C-H bonds in CH4 through a mechanism distinct from that of metallic Ni. The conversion of CH4 on cationic Ni single sites follows the CHx oxidation pathway, which is characterized by the rapid transformation of partial cracking intermediates CHx*, effectively inhibiting coke formation. The presence of the CHx oxidation pathway was experimentally validated by identifying the reaction intermediates. These new mechanistic insights elucidate the exceptional performance of the developed Ni-MFI catalyst and offer guidance for designing more efficient and stable Ni-based DRM catalysts.
Collapse
Affiliation(s)
- Qingpeng Cheng
- Physical Sciences and Engineering Division, Advanced Membranes and Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Xueli Yao
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Lifeng Ou
- School of Physics, Nankai University, Tianjin 300071, China
| | - Zhenpeng Hu
- School of Physics, Nankai University, Tianjin 300071, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Guanxing Li
- Physical Sciences and Engineering Division, Advanced Membranes and Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Natalia Morlanes
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | | | - Pedro Castaño
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Xingang Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, China
| | - Jorge Gascon
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Yu Han
- Physical Sciences and Engineering Division, Advanced Membranes and Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- KAUST, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
- Electron Microscopy Center, South China University of Technology, Guangzhou 510640, China
- School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
2
|
Nippes RP, Macruz PD, Scaliante MHNO, Cardozo-Filho L. Fischer–Tropsch synthesis using cobalt catalysts supported on graphene materials: a systematic review. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-05006-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
|
3
|
Zhang H, Dong A, Liu B, Chen J, Xu Y, Liu X. Hydrogen spillover effects in the Fischer–Tropsch reaction over carbon nanotube supported cobalt catalysts. Catal Sci Technol 2023. [DOI: 10.1039/d3cy00014a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Support (CNTs) surface defect-induced hydrogen spillover significantly impacted the catalytic activity (turnover frequency, TOF) and methane selectivity evolution in cobalt-based Fischer–Tropsch synthesis.
Collapse
Affiliation(s)
- Heng Zhang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Anliang Dong
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Jie Chen
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Yuebing Xu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| | - Xiaohao Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China
| |
Collapse
|
4
|
Han S, Chen WT, Gao ZT, Guan H, Li ZM, Tao DJ. Mechanochemical-Assisted Synthesis of Nitrogen-Doped Carbon Supported Cobalt Catalysts for Efficient and Selective Hydrogenation of Furfural. Catal Letters 2022. [DOI: 10.1007/s10562-022-04042-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|