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Li Y, Xu CQ, Chen C, Zhang Y, Liu S, Zhuang Z, Zhang Y, Zhang Q, Li Z, Chen Z, Zheng L, Cheong WC, Wu K, Jiang G, Xiao H, Lian C, Wang D, Peng Q, Li J, Li Y. Carbon-Boosted and Nitrogen-Stabilized Isolated Single-Atom Sites for Direct Dehydrogenation of Lower Alkanes. J Am Chem Soc 2024. [PMID: 39031766 DOI: 10.1021/jacs.4c03048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Lower olefins are widely used in the chemical industry as basic carbon-based feedstocks. Here, we report the catalytic system featuring isolated single-atom sites of iridium (Ir1) that can function within the entire temperature range of 300-600 °C and transform alkanes with conversions close to thermodynamics-dictated levels. The high turnover frequency values of the Ir1 system are comparable to those of homogeneous catalytic reactions. Experimental data and theoretical calculations both indicate that Ir1 is the primary catalytic site, while the coordinating C and N atoms help to enhance the activity and stability, respectively; all three kinds of elements cooperatively contribute to the high performance of this novel active site. We have further immobilized this catalyst on particulate Al2O3, and we found that the resulting composite system under mimicked industrial conditions could still give high catalytic performances; in addition, we have also developed and established a new scheme of periodical in situ regeneration specifically for this composite particulate catalyst.
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Affiliation(s)
- Yang Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Beijing Single-Atom Catalysis Technology Co., Ltd., Beijing 100094, China
| | - Cong-Qiao Xu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Zhang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shoujie Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zewen Zhuang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yaoyuan Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing 102249, China
| | - Qiyang Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing 102249, China
| | - Zhi Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zheng Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
| | - Weng-Chon Cheong
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Konglin Wu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing 102249, China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chao Lian
- Beijing Single-Atom Catalysis Technology Co., Ltd., Beijing 100094, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qing Peng
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jun Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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Zhai Z, Zhang B, Wang Y, Liu G. Fine-tuned local coordination environment of Pt-N in nanocarbons for efficient propane dehydrogenation. Phys Chem Chem Phys 2024; 26:3263-3273. [PMID: 38196379 DOI: 10.1039/d3cp04215d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Based on the disturbance of electronic density, nitrogen-doped nanocarbons show promising properties to anchor metal clusters. However, precisely regulating the coordination mode between N species and the active site remains challenging. Herein, we rationally designed three N types (graphitic N, pyridinic N and pyrrolic N) in nanocarbons to anchor Pt clusters for the benchmark propane dehydrogenation. The specific activity of the pyridinic-N-doped catalyst was 147.54 molC3H6 molPt-1 h-1 at 550 °C, which was 1.3 times higher than those of graphitic- and pyrrolic-N-doped catalysts. Unlike the regular tetrahedron Pt cluster in the graphitic-N catalyst or the distorted three-layered Pt cluster in the pyrrolic-N catalyst, the Pt cluster in the pyridinic-N catalyst was an inverted tetrahedron, which increased the contact degree without geometric repulsion towards C-H bond scission. The geometric parameters of detached H and C atoms in the methylene group for the pyridinic N catalyst was decreased to strengthen the C-H bond scission. After CH3CHCH3* adsorption, the Bader charge of the Pt active site also became highly positive, which tailored the d-band center closer to the Fermi level and provided more vacant orbitals for C-H bond breakage. Therefore, pyridinic N in nanocarbons is promising to anchor small-sized Pt for alkane dehydrogenation in terms of geometric and electronic effects.
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Affiliation(s)
- Ziwei Zhai
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Bofeng Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Yutong Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Guozhu Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang, 315201, China
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Kwak Y, Wang C, Kavale CA, Yu K, Selvam E, Mallada R, Santamaria J, Julian I, Catala-Civera JM, Goyal H, Zheng W, Vlachos DG. Microwave-assisted, performance-advantaged electrification of propane dehydrogenation. SCIENCE ADVANCES 2023; 9:eadi8219. [PMID: 37713491 PMCID: PMC10881033 DOI: 10.1126/sciadv.adi8219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/15/2023] [Indexed: 09/17/2023]
Abstract
Nonoxidative propane dehydrogenation (PDH) produces on-site propylene for value-added chemicals. While commercial, its modest selectivity and catalyst deactivation hamper the process efficiency and limit operation to lower temperatures. We demonstrate PDH in a microwave (MW)-heated reactor over PtSn/SiO2 catalyst pellets loaded in a SiC monolith acting as MW susceptor and a heat distributor while ensuring comparable conditions with conventional reactors. Time-on-stream experiments show active and stable operation at 500°C without hydrogen addition. Upon increasing temperature or feed partial pressure at high space velocity, catalysts under MWs show resistance in coking and sintering, high activity, and selectivity, starkly contrasting conventional reactors whose catalyst undergoes deactivation. Mechanistic differences in coke formation are exposed. Gas-solid temperature gradients are computationally investigated, and nanoscale temperature inhomogeneities are proposed to rationalize the different performances of the heating modes. The approach highlights the great potential of electrification of endothermic catalytic reactions.
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Affiliation(s)
- Yeonsu Kwak
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
| | - Cong Wang
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
| | - Chaitanya A. Kavale
- Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu 600036, India
| | - Kewei Yu
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
| | - Esun Selvam
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
| | - Reyes Mallada
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas (CSIC-Universidad de Zaragoza), Zaragoza 50018, Spain
| | - Jesus Santamaria
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas (CSIC-Universidad de Zaragoza), Zaragoza 50018, Spain
| | | | | | - Himanshu Goyal
- Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu 600036, India
| | - Weiqing Zheng
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
| | - Dionisios G. Vlachos
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716, USA
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation and Delaware Energy Institute, 221 Academy St., Newark, DE 19716, USA
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Recent Progress of Ga-Based Catalysts for Catalytic Conversion of Light Alkanes. Catalysts 2022. [DOI: 10.3390/catal12111371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The efficient and clean conversion of light alkanes is a research hotspot in the petrochemical industry, and the development of effective and eco-friendly non-noble metal-based catalysts is a key factor in this field. Among them, gallium is a metal component with good catalytic performance, which has been extensively used for light alkanes conversion. Herein, we critically summarize recent developments in the preparation of gallium-based catalysts and their applications in the catalytic conversion of light alkanes. First, we briefly describe the different routes of light alkane conversion. Following that, the remarkable preparation methods for gallium-based catalysts are discussed, with their state-of-the-art application in light alkane conversion. It should be noticed that the directional preparation of specific Ga species, strengthening metal-support interactions to anchor Ga species, and the application of new kinds of methods for Ga-based catalysts preparation are at the leading edge. Finally, the review provides some current limitations and future perspectives for the development of gallium-based catalysts. Recently, different kinds of Ga species were reported to be active in alkane conversion, and how to separate them with advanced in situ and ex situ characterizations is still a problem that needs to be solved. We believe that this review can provide base information for the preparation and application of Ga-based catalysts in the current stage. With these summarizations, this review can inspire new research directions of gallium-based catalysts in the catalysis conversion of light alkanes with ameliorated performances.
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Propane dehydrogenation to propylene over Co@N-doped carbon: Structure-activity-selectivity relationships. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Zhai Z, Zhang B, Wang Y, Wang L, Liu S, Liu G. Revealing the promotion of carbonyl groups on vacancy stabilized Pt 4/nanocarbons for propane dehydrogenation. Phys Chem Chem Phys 2022; 24:23236-23244. [PMID: 36129362 DOI: 10.1039/d2cp03263e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanocarbons are promising supports for Pt clusters applied in propane dehydrogenation (PDH), owing to their large surface areas and tunable chemical properties. The vacancies and oxygen-containing groups (OCGs) in nanocarbons can enhance catalytic performance by tailoring the coordination environment of Pt clusters. Herein, 46 nanocarbons with coexisting vacancies and OCGs were designed to support Pt clusters, of which the influences on PDH were revealed by density functional theory calculations. Nanocarbons with divacancies (V2) and CO edge groups were screened out as the most appropriate support for Pt clusters in PDH. Due to the V2, tetrahedral Pt clusters were distorted into three-layered configurations, contributing to enhanced binding strength and a favorable reactive pathway starting from the methylene group in propane. This changed the rate-determining step to the first C-H bond scission with a low energy barrier. The introduction of CO edge groups coexisting with V2 further improved the stabilization of Pt clusters, resulting from the increased electron transfer from Pt atoms to C atoms. The abilities to break C-H bonds and inhibit C-C bond cracking were also enhanced as compared to the nanocarbons with only V2. Therefore, this work provides references on the regulation of vacancies and OCGs in carbon-based catalysts.
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Affiliation(s)
- Ziwei Zhai
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Bofeng Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Yutong Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Li Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Sibao Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Guozhu Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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Yang F, Zhang J, Shi Z, Chen J, Wang G, He J, Zhao J, Zhuo R, Wang R. Advanced design and development of catalysts in propane dehydrogenation. NANOSCALE 2022; 14:9963-9988. [PMID: 35815671 DOI: 10.1039/d2nr02208g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Propane dehydrogenation (PDH) is an industrial technology for direct propylene production, which has received extensive attention and realized large-scale application. At present, the commercial Pt/Cr-based catalysts suffer from fast deactivation and inferior stability resulting from active species sintering and coke depositing. To overcome the above problems, several strategies such as the modification of the support and the introduction of additives have been proposed to strengthen the catalytic performance and prolong the robust stability of Pt/Cr-based catalysts. This review firstly gives a brief description of the development of PDH and PDH catalysts. Then, the advanced research progress of supported noble metals and non-noble metals together with metal-free materials for PDH is systematically summarized along with the material design and active origin as well as the existing problems in the development of PDH catalysts. Furthermore, the review also emphasizes advanced synthetic strategies based on novel design of PDH catalysts with improved dehydrogenation activity and stability. Finally, the future challenges and directions of PDH catalysts are provided for the development of their further industrial application.
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Affiliation(s)
- Fuwen Yang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Zongbo Shi
- REZEL Catalysts Corporation, Shanghai 200120, China
| | - Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Junjie He
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Junyu Zhao
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
| | | | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, China
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Matsumoto K, Akira O, Campidell S, Hayashi T. Electrocatalytic Hydrogen Evolution Reaction Promoted by Co/N/C Catalysts with Co−Nx Active Sites Derived from Precursors Forming N-doped Graphene Nanoribbons. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koki Matsumoto
- Faculty of Environmental Earth Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Onoda Akira
- Faculty of Environmental Earth Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan
| | - Stéphane Campidell
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191, Gif-sur-Yvette, France
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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