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Shao Q, Han X, Li K, Guan W, Ling Y, Lv Z. A self-assembled composited cathode coated with dual-exsolved core-shell FeNi@FeO x nanoparticles as efficient CO 2 reduction electrocatalysts. J Colloid Interface Sci 2025; 693:137564. [PMID: 40252573 DOI: 10.1016/j.jcis.2025.137564] [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: 01/09/2025] [Revised: 04/08/2025] [Accepted: 04/09/2025] [Indexed: 04/21/2025]
Abstract
Solid oxide electrolytic cells (SOECs) enable efficient electrochemical reduction of CO2 into CO, providing a sustainable solution for greenhouse gas mitigation. Nevertheless, the scarcity of stable and highly active cathode materials for the real application of SOECs is a serious challenge. Herein, a novel self-assembled composed cathode of Ni co-doped (Pr0.5Sr0.5)0.95Fe0.9Nb0.1O3-δ-Gd0.1Ce0.9O2-δ (PSFNNb-GDC) is proposed as an efficient CO2 electrolysis. The NiFe/FeOx nanoparticles with a core-shell structure are uniformly deposited onto the surface of the PSFNNb-GDC cathode. La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM)-based single cell with NiFe/FeOx@PSFNNb-GDC cathode achieve excellent performance (1.33 A cm-2 at 850 °C@1.6 V) and stability (800 °C@1.2 V) in long-term operation. The performance enhancement original from increased surface oxygen vacancies and in situ formed FeNi@FeOx core-shell nanoparticles. This research highlights the potential of rational structural design of SOECs cathode materials in advancing the field of CO2 utilization.
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Affiliation(s)
- Qi Shao
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Components, Harbin, Heilongjiang 150001, China
| | - Xu Han
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Components, Harbin, Heilongjiang 150001, China; School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Kaixin Li
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Components, Harbin, Heilongjiang 150001, China
| | - Wanbing Guan
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Yihan Ling
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China.
| | - Zhe Lv
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Components, Harbin, Heilongjiang 150001, China.
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2
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Fan L, Luo W, Fan Q, Hu Q, Jing Y, Chiu TW, Lund PD. Status and outlook of solid electrolyte membrane reactors for energy, chemical, and environmental applications. Chem Sci 2025; 16:6620-6687. [PMID: 40160366 PMCID: PMC11951168 DOI: 10.1039/d4sc08300h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2024] [Accepted: 02/17/2025] [Indexed: 04/02/2025] Open
Abstract
Solid electrolyte membrane reactors (SEMRs) can be operated at high temperatures with distinct reaction kinetics, or at lower temperatures (300-500 °C) for industrially relevant energy applications (such as solid oxide fuel/electrolysis cells, direct carbon fuel cells, and metal-air batteries), chemical (such as alkane dehydrogenation, C-C coupling, and NH3 synthesis), environmental (De-NO x , CO2 utilization, and separation), as well as their combined (one-step coupled CO2/H2O co-electrolysis and methanation reaction, power and chemical cogeneration) applications. SEMRs can efficiently integrate electrical, chemical, and thermal energy sectors, thereby circumventing thermodynamic constraints and production separation issues. They offer a promising way to achieve carbon neutrality and improve chemical manufacturing processes. This review thoroughly examines SEMRs utilizing various ionic conductors, namely O2-, H+, and hybrid types, with operations in different reactor/cell architectures (such as panel, tubular, single chamber, and porous electrolytes). The reactors operate in various modes including pumping, extraction, reversible, or electrical promoting modes, providing multiple functionalities. The discussion extends to examining critical materials for solid-state cells and catalysts essential for specific technologically important reactions, focusing on electrochemical performance, conversion efficiency, and selectivity. The review also serves as a first attempt to address the potential of process-intensified SEMRs through the integration of photo/solar, thermoelectric, and plasma energy and explores the unique phenomenon of electrochemical promotion of catalysis (EPOC) in membrane reactors. The ultimate goal is to offer insight into ongoing critical scientific and technical challenges like durability and operational cost hindering the widespread industrial implementation of SEMRs while exploring the opportunities in this rapidly growing research domain. Although still in an early stage with limited demonstrations and applications, advances in materials, catalysis science, solid-state ionics, and reactor design, as well as process intensification and/or system integration will fill the gaps in current high temperature operation of SEMRs and industrially relevant applications like sustainable clean chemical production, efficient energy conversion/storage, as well as environmental enhancement.
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Affiliation(s)
- Liangdong Fan
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, Department of New Energy Science and Technology, College of Chemistry and Environmental Engineering, Shenzhen University Shenzhen 518060 Guangdong China
| | - Wanying Luo
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, Department of New Energy Science and Technology, College of Chemistry and Environmental Engineering, Shenzhen University Shenzhen 518060 Guangdong China
| | - Qixun Fan
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, Department of New Energy Science and Technology, College of Chemistry and Environmental Engineering, Shenzhen University Shenzhen 518060 Guangdong China
| | - Qicheng Hu
- Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, Department of New Energy Science and Technology, College of Chemistry and Environmental Engineering, Shenzhen University Shenzhen 518060 Guangdong China
| | - Yifu Jing
- Department of Materials Science, Shenzhen MSU-BIT University Shenzhen 517182 Guangdong China
| | - Te-Wei Chiu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology Taipei Taiwan
| | - Peter D Lund
- New Energy Technologies Group, Department of Applied Physics, Aalto University School of Science FI-00076 Aalto Finland
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3
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Guo Q, Zhong M, Geng J, Xue Y, Pan J, Xiong C, Chi B, Pu J. Performance of Solid Oxide Fuel Cells Based on Liquid Hydrocarbon Fuel Reforming Gas: Effect of Cell Structure and Gas Composition. ACS APPLIED MATERIALS & INTERFACES 2025; 17:16802-16811. [PMID: 40040459 DOI: 10.1021/acsami.4c21053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2025]
Abstract
This work comprehensively analyzed how the thickness of the anode and the fuel gas compositions can alter the durability and electrochemical performance of solid oxide fuel cells (SOFCs) when they are operated on steam-reformed gas of hydrocarbons. The electrochemical tests and surface characterizations on the tested cells indicate that cell performance degradation is primarily associated with anode carbon deposition, which increases with a higher C2 gas content in the reforming gas. Additionally, the gas flow field simulation verified that reducing the anode thickness can effectively increase the surface steam content, thereby reducing carbon deposition and improving the stability of the fuel cell. The electrochemical performance of the cell is improved by the C1 composition in the reformed gas. The presence of CO and CO2 gases promotes the adsorption of H2 on the Ni metal surface, thereby reducing the polarization resistance of the anode. Meanwhile, CH4 can release more energy during electrochemical oxidation, reducing the concentration of polarization. These results underscore the potential of utilizing reformed gases consisting of 70 vol % H2, nearly 30 vol % CO, CO2, and trace alkanes to function SOFCs. This approach may enhance power density, broaden fuel options, and provide practical solutions for the advancement and commercialization of SOFC technology.
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Affiliation(s)
- Qunwei Guo
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212100, China
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Mengjin Zhong
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiaqi Geng
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yuan Xue
- Department of Chemistry and Biochemistry, The University of Mississippi, Oxford, Mississippi 38655, United States
| | - Jiawen Pan
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chunyan Xiong
- Hubei Provincial Research Centre of Engineering & Technology for New Energy Materials and Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor& Green Chemical Technology, School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
| | - Bo Chi
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jian Pu
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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4
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Zhu P, Bian W, Wu W, Tang W, Duan C, Zheng S, Zhang Y, Ding D, Zhao Z, Wang LC, Dong P, Ding H. Revolutionizing Methane Transformation with the Dual Production of Aromatics and Electricity in a Protonic Ceramic Electrocatalytic Membrane Reactor. ACS APPLIED MATERIALS & INTERFACES 2025; 17:3180-3187. [PMID: 39760680 DOI: 10.1021/acsami.4c14627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2025]
Abstract
Reducing the energy and carbon intensity of the conventional chemical processing industry can be achieved by electrochemically transforming natural gases into higher-value chemicals with higher efficiency and near-zero emissions. In this work, the direct conversion of methane to aromatics and electricity has been achieved in a protonic ceramic electrocatalytic membrane reactor through the integration of a proton-conducting membrane assembly and a trimetallic Pt-Cu/Mo/ZSM-5 catalyst for the nonoxidative methane dehydro-aromatization reaction. In this integrated system, a remarkable 15.6% single-pass methane conversion with an 11.4% benzene yield has been demonstrated, while a peak power density of 276 mW cm-2 is obtained at 700 °C. The enhanced 15.7% increase in conversion and 16.0% improvement in the yield are observed when compared with the thermochemical process, which is attributed to the shift of reaction equilibrium by the removal of hydrogen through the protonic membrane. Concurrently, the faster H2 removal at a higher electrical current gave rise to a higher methane conversion and benzene yield. Furthermore, the catalyst can be efficiently regenerated by eliminating carbon deposition. A stable cell potential is maintained for 45 h under a constant current load of 0.13 A cm-2. The dual production of aromatics and electricity in the electrocatalytic membrane reactor has been demonstrated to be an attractive approach for decarbonizing chemical processing.
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Affiliation(s)
- Pengxi Zhu
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
- Department of Mechanical Engineering, George Mason University, Fairfax, VA 22030, United States
| | - Wenjuan Bian
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Wei Wu
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Wei Tang
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Chuancheng Duan
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT 84112, United States
| | - Shuanglin Zheng
- School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019, United States
| | - Yuchen Zhang
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
- Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, United States
| | - Dong Ding
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Zeyu Zhao
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Lu-Cun Wang
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
| | - Pei Dong
- Department of Mechanical Engineering, George Mason University, Fairfax, VA 22030, United States
| | - Hanping Ding
- Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States
- School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019, United States
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5
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Wang Z, Tan T, Du K, Zhang Q, Liu M, Yang C. A High-Entropy Layered Perovskite Coated with In Situ Exsolved Core-Shell CuFe@FeO x Nanoparticles for Efficient CO 2 Electrolysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2312119. [PMID: 38088211 DOI: 10.1002/adma.202312119] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/07/2023] [Indexed: 12/20/2023]
Abstract
Solid oxide electrolysis cells (SOECs) are promising energy conversion devices capable of efficiently transforming CO2 into CO, reducing CO2 emissions, and alleviating the greenhouse effect. However, the development of a suitable cathode material remains a critical challenge. Here a new SOEC cathode is reported for CO2 electrolysis consisting of high-entropy Pr0.8 Sr1.2 (CuFe)0.4 Mo0.2 Mn0.2 Nb0.2 O4-δ (HE-PSCFMMN) layered perovskite uniformly coated with in situ exsolved core-shell structured CuFe alloy@FeOx (CFA@FeO) nanoparticles. Single cells with the HE-PSCFMMN-CFA@FeO cathode exhibit a consistently high current density of 1.95 A cm-2 for CO2 reduction at 1.5 V while maintaining excellent stability for up to 200 h under 0.75 A cm-2 at 800 °C in pure CO2 . In situ X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations confirm that the exsolution of CFA@FeO nanoparticles introduces additional oxygen vacancies within HE-PSCFMMN substrate, acting as active reaction sites. More importantly, the abundant oxygen vacancies in FeOx shell, in contrast to conventional in situ exsolved nanoparticles, enable the extension of the triple-phase boundary (TPB), thereby enhancing the kinetics of CO2 adsorption, dissociation, and reduction.
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Affiliation(s)
- Ziming Wang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Ting Tan
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Ke Du
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Qimeng Zhang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Meilin Liu
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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6
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Tan T, Wang Z, Huang K, Yang C. High-Performance Co-production of Electricity and Light Olefins Enabled by Exsolved NiFe Alloy Nanoparticles from a Double-Perovskite Oxide Anode in Solid Oxide-Ion-Conducting Fuel Cells. ACS NANO 2023; 17:13985-13996. [PMID: 37399582 DOI: 10.1021/acsnano.3c03956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Light olefins (LOs) such as ethylene and propylene are critical feedstocks for many vital chemicals that support our economy and daily life. LOs are currently mass produced via steam cracking of hydrocarbons, which is highly energy intensive and carbon polluting. Efficient, low-emission, and LO-selective conversion technologies are highly desirable. Electrochemical oxidative dehydrogenation of alkanes in oxide-ion-conducting solid oxide fuel cell (SOFC) reactors has been reported in recent years as a promising approach to produce LOs with high efficiency and yield while generating electricity. We report here an electrocatalyst that excels in the co-production. The efficient catalyst is NiFe alloy nanoparticles (NPs) exsolved from a Pr- and Ni-doped double perovskite Sr2Fe1.5Mo0.5O6 (Pr0.8Sr1.2Ni0.2Fe1.3Mo0.5O6-δ, PSNFM) matrix during SOFC operation. We show evidence that Ni is first exsolved, which triggers the following Fe-exsolution, forming the NiFe NP alloy. At the same time as the NiFe exsolution, abundant oxygen vacancies are created at the NiFe/PSNFM interface, which promotes the oxygen mobility for oxidative dehydrogenation of propane (ODHP), coking resistance, and power generation. At 750 °C, the SOFC reactor with the PSNFM catalyst reaches a propane conversion of 71.40% and LO yield of 70.91% under a current density of 0.3 A cm-2 without coking. This level of performance is unmatchable by the current thermal catalytic reactors, demonstrating the great potential of electrochemical reactors for direct hydrocarbon conversion into value-added products.
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Affiliation(s)
- Ting Tan
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Ziming Wang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Kevin Huang
- Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29205, United States
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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7
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Zhang Y, Zhang X, Ni J, Ni C. Pr-Doped SrTi 0.5Mn 0.5O 3-δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3974-3984. [PMID: 36633870 DOI: 10.1021/acsami.2c18530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The use of identical electrodes for both the cathode and the anode in a symmetrical solid oxide fuel cell (SSOFC) can simplify the preparation process and increase the durability of the cell, but it is also demanding on the properties of the electrode including stability, electric conductivity, and electrocatalysis. The doping of variable-valence Mn4+/3+2+ on the B site of stable SrTiO3 is explored in this study as both the cathode and the anode for an SSOFC. Though the limit of Mn doping in SrTiO3 is generally low, the additional Pr3+/4+ donor on the Sr site of SrTi0.5Mn0.5O3 was found to enhance the structure stability, electric conductivity, and electrocatalysis. The cell with Pr0.5Sr0.5Ti0.5Mn0.5O3 electrodes excels under H2, propane, or CH4/H2 fuel, providing the cocatalyst was infiltrated on the anode side. The polarization resistance value of Pr0.5Sr0.5Ti0.5Mn0.5O3 was 0.27 Ω·cm2 as the cathode and 0.33 Ω·cm2 for the SSOFC using H2 fuel. The performance under CH4/H2 fuel can be boosted to above 0.9 W cm-2 if Ni/ceria was loaded onto the anode to enhance the methane reforming. This work contributes to a perovskite anode with high Mn doping in SrTiO3 for application in SSOFC for natural gas with renewable H2 injection.
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Affiliation(s)
- Yuan Zhang
- College of Resource and Environment, Southwest University, Beibei, Chongqing400715, China
| | - Xuelin Zhang
- College of Resource and Environment, Southwest University, Beibei, Chongqing400715, China
| | - Jiupai Ni
- College of Resource and Environment, Southwest University, Beibei, Chongqing400715, China
| | - Chengsheng Ni
- College of Resource and Environment, Southwest University, Beibei, Chongqing400715, China
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8
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Duan Y, Jiang H, Wang H. Bifunctional catalyst of mordenite‐ and alumina‐supported platinum for isobutane hydroisomerization to
n
‐butane. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaoyao Duan
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Hui Jiang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
| | - Hefang Wang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin China
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9
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Puche M, Liu L, Concepción P, Sorribes I, Corma A. Tuning the Catalytic Performance of Cobalt Nanoparticles by Tungsten Doping for Efficient and Selective Hydrogenation of Quinolines under Mild Conditions. ACS Catal 2021; 11:8197-8210. [PMID: 35633841 PMCID: PMC9131458 DOI: 10.1021/acscatal.1c01561] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/09/2021] [Indexed: 12/13/2022]
Abstract
Non-noble bimetallic CoW nanoparticles (NPs) partially embedded in a carbon matrix (CoW@C) have been prepared by a facile hydrothermal carbon-coating methodology followed by pyrolysis under an inert atmosphere. The bimetallic NPs, constituted by a multishell core-shell structure with a metallic Co core, a W-enriched shell involving Co7W6 alloyed structures, and small WO3 patches partially covering the surface of these NPs, have been established as excellent catalysts for the selective hydrogenation of quinolines to their corresponding 1,2,3,4-tetrahydroquinolines under mild conditions of pressure and temperature. It has been found that this bimetallic catalyst displays superior catalytic performance toward the formation of the target products than the monometallic Co@C, which can be attributed to the presence of the CoW alloyed structures.
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Affiliation(s)
- Marta Puche
- Instituto de Tecnología
Química, Universitat Politècnica de València-Consejo
Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | | | - Patricia Concepción
- Instituto de Tecnología
Química, Universitat Politècnica de València-Consejo
Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Iván Sorribes
- Instituto de Tecnología
Química, Universitat Politècnica de València-Consejo
Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Avelino Corma
- Instituto de Tecnología
Química, Universitat Politècnica de València-Consejo
Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
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10
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Cao X, Yan X, Ke L, Zhao K, Yan N. Proton-Assisted Reconstruction of Perovskite Oxides: Toward Improved Electrocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2021; 13:22009-22016. [PMID: 33909406 DOI: 10.1021/acsami.1c03276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrocatalysis is indispensable to various emerging energy conversion and storage devices such as fuel cells and water electrolyzers. Owing to their unique physicochemical properties, perovskite oxide materials are one of the most promising water oxidation (OER) catalysts solely comprising earth-abundant elements. Nonetheless, many perovskite oxide catalysts suffer from a number of inherent problems such as the A-site cation segregation on the surface, coarse particles due to agglomeration/sintering, and surface decomposition during catalytic reactions. Besides, the catalytic activity is often incomparable with those of the state-of-the-art catalysts. In this work, we developed a proton-assisted approach to mitigate these common challenges. The protonation via the interaction of oxygen vacancies and water molecules induced the formation of protonic defects and the lattice expansion of the perovskite, leading to the fracture of big particles to yield small nanoparticles. This hydration in an acidic solution also selectively removed the A-site cation segregates and generated a spinel/perovskite heterostructure on the surface. We verified this approach using three typical perovskite OER catalysts including Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF), La0.6Sr0.4Co0.8Fe0.2O3 (LSCF), and La0.75Sr0.25MnO3 (LSM). The processed catalysts showed much improved activity while maintaining their excellent stability, surpassing most of today's OER catalysts based on complex oxides.
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Affiliation(s)
- Xiaojuan Cao
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Suzhou Institute of Wuhan University, Suzhou 215123, China
| | - Xiaoyu Yan
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Suzhou Institute of Wuhan University, Suzhou 215123, China
| | - Le Ke
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Kai Zhao
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Suzhou Institute of Wuhan University, Suzhou 215123, China
| | - Ning Yan
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam 1098 XH, The Netherlands
- Suzhou Institute of Wuhan University, Suzhou 215123, China
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11
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Wang D, Wong SI, Sunarso J, Xu M, Wang W, Ran R, Zhou W, Shao Z. A Direct n-Butane Solid Oxide Fuel Cell Using Ba(Zr 0.1Ce 0.7Y 0.1Yb 0.1) 0.9Ni 0.05Ru 0.05O 3-δ Perovskite as the Reforming Layer. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20105-20113. [PMID: 33886260 DOI: 10.1021/acsami.1c02502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hydrocarbon-fueled solid oxide fuel cells (SOFCs) that can operate in the intermediate temperature range of 500-700 °C represent an attractive SOFC device for combined heat and power applications in the industrial market. One of the ways to realize such a device relies upon exploiting an in situ steam reforming process in the anode catalyzed by an anti-carbon coking catalyst. Here, we report a new Ni and Ru bimetal-doped perovskite catalyst, Ba(Zr0.1Ce0.7Y0.1Yb0.1)0.9Ni0.05Ru0.05O3-δ (BZCYYbNRu), with enhanced catalytic hydrogen production activity on n-butane (C4H10), which can resist carbon coking over extended operation durations. Ru in the perovskite lattice inhibits Ni precipitation from perovskite, and the high water adsorption capacity of proton conducting perovskite improves the coking resistance of BZCYYbNRu. When BZCYYbNRu is used as a steam reforming catalyst layer on a Ni-YSZ-supported anode, the single fuel cell not only achieves a higher power density of 1113 mW cm-2 at 700 °C under a 10 mL min-1 C4H10 continuous feed stream at a steam to carbon (H2O/C) ratio of 0.5 but also shows a much better operational stability for 100 h at 600 °C compared with those reported in the literature.
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Affiliation(s)
- Dongfeng Wang
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Shao Ing Wong
- Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia
| | - Jaka Sunarso
- Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia
| | - Meigui Xu
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Wei Wang
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Ran Ran
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Wei Zhou
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zongping Shao
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia 6845, Australia
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