1
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Quinlan L, Brooks T, Ghaemi N, Arellano-Garcia H, Irandoost M, Sharifianjazi F, Amini Horri B. Synthesis and Characterisation of Nanocrystalline Co xFe 1-xGDC Powders as a Functional Anode Material for the Solid Oxide Fuel Cell. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3864. [PMID: 39124528 PMCID: PMC11313999 DOI: 10.3390/ma17153864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/21/2024] [Accepted: 07/31/2024] [Indexed: 08/12/2024]
Abstract
The necessity for high operational temperatures presents a considerable obstacle to the commercial viability of solid oxide fuel cells (SOFCs). The introduction of active co-dopant ions to polycrystalline solid structures can directly impact the physiochemical and electrical properties of the resulting composites including crystallite size, lattice parameters, ionic and electronic conductivity, sinterability, and mechanical strength. This study proposes cobalt-iron-substituted gadolinium-doped ceria (CoxFe1-xGDC) as an innovative, nickel-free anode composite for developing ceramic fuel cells. A new co-precipitation technique using ammonium tartrate as the precipitant in a multi-cationic solution with Co2+, Gd3+, Fe3+, and Ce3+ ions was utilized. The physicochemical and morphological characteristics of the synthesized samples were systematically analysed using a comprehensive set of techniques, including DSC/TGA for a thermal analysis, XRD for a crystallographic analysis, SEM/EDX for a morphological and elemental analysis, FT-IR for a chemical bonding analysis, and Raman spectroscopy for a vibrational analysis. The morphological analysis, SEM, showed the formation of nanoparticles (≤15 nm), which corresponded well with the crystal size determined by the XRD analysis, which was within the range of ≤10 nm. The fabrication of single SOFC bilayers occurred within an electrolyte-supported structure, with the use of the GDC as the electrolyte layer and the CoO-Fe2O3/GDC composite as the anode. SEM imaging and the EIS analysis were utilized to examine the fabricated symmetrical cells.
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Affiliation(s)
- Laura Quinlan
- School of Chemistry and Chemical Engineering, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Talia Brooks
- School of Chemistry and Chemical Engineering, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Nasrin Ghaemi
- School of Chemistry and Chemical Engineering, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Harvey Arellano-Garcia
- Department of Process and Plant Technology, Brandenburg University of Technology (BTU) Cottbus-Senftenberg, 03046 Cottbus, Germany;
| | - Maryam Irandoost
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology, Tehran 15916-34311, Iran
| | - Fariborz Sharifianjazi
- Center of Advanced Materials and Structures, School of Science and Technology, The University of Georgia, Tbilisi 0159, Georgia
| | - Bahman Amini Horri
- School of Chemistry and Chemical Engineering, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
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2
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Jia Y, Wei T, Shao Z, Song Y, Huang X, Huang B, Cao C, Zhi Y. LaMnO 3-Type Perovskite Nanofibers as Effective Catalysts for On-Cell CH 4 Reforming via Solid Oxide Fuel Cells. Molecules 2024; 29:3654. [PMID: 39125058 PMCID: PMC11313725 DOI: 10.3390/molecules29153654] [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: 07/16/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/12/2024] Open
Abstract
CH4 has become the most attractive fuel for solid oxide fuel cells due to its wide availability, narrow explosion limit range, low price, and easy storage. Thus, we present the concept of on-cell reforming via SOFC power generation, in which CH4 and CO2 can be converted into H2 and the formed H2 is electrochemically oxidized on a Ni-BZCYYb anode. We modified the porosity and specific surface area of a perovskite reforming catalyst via an optimized electrostatic spinning method, and the prepared LCMN nanofibers, which displayed an ideal LaMnO3-type perovskite structure with a high specific surface area, were imposed on a conventional Ni-BZCYYb anode for on-cell CH4 reforming. Compared to LCMN nanoparticles used as on-cell reforming catalysts, the NF-SOFC showed lower ohmic and polarization resistances, indicating that the porous nanofibers could reduce the resistances of fuel gas transport and charge transport in the anode. Accordingly, the NF-SOFC displayed a maximum power density (MPD) of 781 mW cm-2 and a stable discharge voltage of around 0.62 V for 72 h without coking in the Ni-BZCYYb anode. The present LCMN NF materials and on-cell reforming system demonstrated stability and potential for highly efficient power generation with hydrocarbon fuels.
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Affiliation(s)
- Yangbo Jia
- School of Materials Science & Engineering, Zhejiang SCI-TECH University, Hangzhou 310018, China; (Y.J.); (C.C.); (Y.Z.)
| | - Tong Wei
- School of Materials Science & Engineering, Zhejiang SCI-TECH University, Hangzhou 310018, China; (Y.J.); (C.C.); (Y.Z.)
| | - Zhufeng Shao
- China Industrial Energy Conservation and Cleaner Production Association, Beijing 100034, China;
| | - Yunpeng Song
- Industry Development Center of Zhejiang Province, Hangzhou 310006, China;
| | - Xue Huang
- Zhejiang Institute of Industry and Information Technology, Hangzhou 310006, China;
| | - Beila Huang
- Zhejiang Institute of Industry and Information Technology, Hangzhou 310006, China;
| | - Chen Cao
- School of Materials Science & Engineering, Zhejiang SCI-TECH University, Hangzhou 310018, China; (Y.J.); (C.C.); (Y.Z.)
| | - Yufan Zhi
- School of Materials Science & Engineering, Zhejiang SCI-TECH University, Hangzhou 310018, China; (Y.J.); (C.C.); (Y.Z.)
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3
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Du M, Ji S, Zhang P, Tang Y, Liu Y. Enriching Nano-Heterointerfaces in Proton Conducting TiO 2-SrTiO 3@TiO 2 Yolk-Shell Electrolyte for Low-Temperature Solid Oxide Fuel Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401008. [PMID: 38867389 DOI: 10.1002/advs.202401008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/01/2024] [Indexed: 06/14/2024]
Abstract
A challenging task in solid oxide fuel cells (SOFCs) is seeking for an alternative electrolyte, enabling high ionic conduction at relatively low operating temperatures, i.e., 300-600 °C. Proton-conducting candidates, in particular, hold a significant promise due to their low transport activation energy to deliver protons. Here, a unique hierarchical TiO2-SrTiO3@TiO2 structure is developed inside an intercalated TiO2-SrTiO3 core as "yolk" decorating densely packed flake TiO2 as shell, creating plentiful nano-heterointerfaces with a continuous TiO2 and SrTiO3 "in-house" interfaces, as well the interfaces between TiO2-SrTiO3 yolk and TiO2 shell. It exhibits a reduced activation energy, down to 0.225 eV, and an unexpectedly high proton conductivity at low temperature, e.g., 0.084 S cm-1 at 550 °C, confirmed by experimentally H/D isotope method and proton-filtrating membrane measurement. Raman mapping technique identifies the presence of hydrogenated HO─Sr bonds, providing further evidence for proton conduction. And its interfacial conduction is comparatively analyzed with a directly-mixing TiO2-SrTiO3 composite electrolyte. Consequently, a single fuel cell based on the TiO2-SrTiO3@TiO2 heterogeneous electrolyte delivers a good peak power density of 799.7 mW cm-2 at 550 °C. These findings highlight a dexterous nano-heterointerface design strategy of highly proton-conductive electrolytes at reduced operating temperatures for SOFC technology.
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Affiliation(s)
- Mengchen Du
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Shaozheng Ji
- Ultrafast Electron Microscopy Laboratory, School of Physics, Nankai University, Tianjin, 300071, China
| | - Pan Zhang
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Yongfu Tang
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Yanyan Liu
- State Key Laboratory of Metastable Materials Science and Technology (MMST), Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, 066004, P. R. China
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4
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Chiara A, Raimondi G, Merkle R, Maier J, Bordenca CV, Pipitone C, Longo A, Giannici F. Interface Diffusion and Compatibility of (Ba,La)FeO 3-δ Perovskite Electrodes in Contact with Barium Zirconate and Ceria. ACS APPLIED MATERIALS & INTERFACES 2023; 15:50225-50236. [PMID: 37862611 PMCID: PMC10623510 DOI: 10.1021/acsami.3c13013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023]
Abstract
Ba1-xLaxFeO3-δ perovskites (BLF) capable of conducting electrons, protons, and oxygen ions are promising oxygen electrodes for efficient solid oxide cells (fuel cells or electrolyzers), an integral part of prospected large-scale power-to-gas energy storage systems. We investigated the compatibility of BLF with lanthanum content between 5 and 50%, in contact with oxide-ion-conducting Ce0.8Gd0.2O2-δ and proton-conducting BaZr0.825Y0.175O3-δ electrolytes, annealing the electrode-electrolyte bilayers at high temperature to simulate thermal stresses of fabrication and prolonged operation. By employing both bulk X-ray diffraction and synchrotron X-ray microspectroscopy, we present a space-resolved picture of the interaction between electrode and electrolyte as what concerns cation interdiffusion, exsolution, and phase stability. We found that the phase stability of BLF in contact with other phases is correlated with the Goldschmidt tolerance factor, in turn determined by the La/Ba ratio, and appropriate doping strategies with oversized cations (Zn2+, Y3+) could improve structural stability. While extensive reactivity and/or interdiffusion was often observed, we put forward that most products of interfacial reactions, including proton-conducting Ba(Ce,Gd)O3-δ and mixed-conducting (Ba,La)(Fe,Zr,Y)O3-δ, may not be very detrimental for practical cell operation.
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Affiliation(s)
- Alessandro Chiara
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
| | - Giulia Raimondi
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - Rotraut Merkle
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - Joachim Maier
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | | | - Candida Pipitone
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
| | - Alessandro Longo
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, UOS Palermo, 90146 Palermo, Italy
- European
Synchrotron Radiation Facility, 38000 Grenoble, France
| | - Francesco Giannici
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
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5
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He F, Hou M, Du Z, Zhu F, Cao X, Ding Y, Zhou Y, Liu M, Chen Y. Self-Construction of Efficient Interfaces Ensures High-Performance Direct Ammonia Protonic Ceramic Fuel Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304957. [PMID: 37640369 DOI: 10.1002/adma.202304957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Direct ammonia protonic ceramic fuel cells (PCFCs) are highly efficient energy conversion devices since ammonia as a carbon-neutral hydrogen-rich carrier shows great potential for storage and long-distance transportation when compared with hydrogen fuel. However, traditional Ni-based anodes readily suffer from severe structural destruction and dramatic deactivation after long-time exposure to ammonia. Here a Sr2 Fe1.35 Mo0.45 Cu0.2 O6-δ (SFMC) anode catalytic layer (ACL) painted onto a Ni-BaZr0.1 Ce0.7 Y0.1 Yb0.1 O3- δ (BZCYYb) anode with enhanced catalytic activity and durability toward the direct utilization of ammonia is reported. A tubular Ni-BZCYYb anode-supported cells with the SFMC ACL show excellent peak power densities of 1.77 W cm-2 in wet H2 (3% H2 O) and 1.02 W cm-2 in NH3 at 650 °C. A relatively stable operation of the cells is obtained at 650 °C for 200 h in ammonia fuel. Such achieved improvements in the activity and durability are attributed to the self-constructed interfaces with the phases of NiCu or/and NiFe for efficient NH3 decomposition, resulting in a strong NH3 adsorption strength of the SFMC, as confirmed by NH3 thermal conversion and NH3 -temperature programmed desorption. This research offers a valuable strategy of applying an internal catalytic layer for highly active and durable ammonia PCFCs.
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Affiliation(s)
- Fan He
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
| | - Mingyang Hou
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
| | - Zhiwei Du
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
| | - Feng Zhu
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
| | - Xiaozhuo Cao
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
| | - Yong Ding
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30318, USA
| | - Yucun Zhou
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30318, USA
| | - Meilin Liu
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30318, USA
| | - Yu Chen
- School of Environment and Energy, South China University of Technology, 382 East Road, Higher Education Mega Center, Guangzhou, 510006, P. R. China
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6
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Kim HS, An JS, Bae HB, Chung SY. Atomic-scale observation of premelting at 2D lattice defects inside oxide crystals. Nat Commun 2023; 14:2255. [PMID: 37081020 PMCID: PMC10119109 DOI: 10.1038/s41467-023-37977-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 04/05/2023] [Indexed: 04/22/2023] Open
Abstract
Since two major criteria for melting were proposed by Lindemann and Born in the early 1900s, many simulations and observations have been carried out to elucidate the premelting phenomena largely at the crystal surfaces and grain boundaries below the bulk melting point. Although dislocations and clusters of vacancies and interstitials were predicted as possible origins to trigger the melting, experimental direct observations demonstrating the correlation of premelting with lattice defects inside a crystal remain elusive. Using atomic-column-resolved imaging with scanning transmission electron microscopy in polycrystalline BaCeO3, here we clarify the initiation of melting at two-dimensional faults inside the crystals below the melting temperature. In particular, melting in a layer-by-layer manner rather than random nucleation at the early stage was identified as a notable finding. Emphasizing the value of direct atomistic observation, our study suggests that lattice defects inside crystals should not be overlooked as preferential nucleation sites for phase transformation including melting.
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Affiliation(s)
- Hye-Sung Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
- Korea Institute of Energy Research, Daejeon, 34129, Korea
| | - Ji-Sang An
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Hyung Bin Bae
- KAIST Analysis Center, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Sung-Yoon Chung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea.
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7
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Wang N, Yuan B, Tang C, Du L, Zhu R, Aoki Y, Wang W, Xing L, Ye S. Machine-Learning-Accelerated Development of Efficient Mixed Protonic-Electronic Conducting Oxides as the Air Electrodes for Protonic Ceramic Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203446. [PMID: 36177694 DOI: 10.1002/adma.202203446] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Currently, the development of high-performance protonic ceramic cells (PCCs) is limited by the scarcity of efficient mixed protonic-electronic conducting oxides that can act as air electrodes to satisfy the high protonic conductivity of electrolytes. Despite the extensive research efforts in the past decades, the development of mixed protonic-electronic conducting oxides still remains in a trial-and-error process, which is extremely time consuming and high cost. Herein, based on the data acquired from the published literature, the machine-learning (ML) method is introduced to accelerate the discovery of efficient mixed protonic-electronic conducting oxides. Accordingly, the hydrated proton concentration (HPC) of 3200 oxides is predicted to evaluate the proton conduction that is essential for enhancing the electrochemical performances of PCCs. Subsequently, feature importance for HPC is evaluated to establish a guideline for rapid and accurate design and development of high-efficiency mixed protonic-electronic conducting oxides. Thereafter, screened (La0.7 Ca0.3 )(Co0.8 Ni0.2 )O3 (LCCN7382) is prepared, and the experimental HPC adequately corresponds with the predicted results. Moreover, the PCC with LCCN7382 exhibits satisfactory electrochemical performances in electrolysis and fuel cell modes. In addition to the development of a promising air electrode for PCC, this study establishes a new avenue for ML-based development of mixed protonic-electronic conducting oxides.
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Affiliation(s)
- Ning Wang
- Huangpu Hydrogen Energy Innovation Centre, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan
| | - Baoyin Yuan
- School of Mathematics, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Chunmei Tang
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan
| | - Lei Du
- Huangpu Hydrogen Energy Innovation Centre, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Ruijie Zhu
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan
| | - Yoshitaka Aoki
- Faculty of Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan
| | - Weibo Wang
- College of Information Science and Engineering, Ocean University of China, Qingdao, 262100, P. R. China
| | - Lixin Xing
- Huangpu Hydrogen Energy Innovation Centre, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
| | - Siyu Ye
- Huangpu Hydrogen Energy Innovation Centre, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China
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8
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Liu Z, Tang Z, Song Y, Yang G, Qian W, Yang M, Zhu Y, Ran R, Wang W, Zhou W, Shao Z. High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells. NANO-MICRO LETTERS 2022; 14:217. [PMID: 36352041 PMCID: PMC9646682 DOI: 10.1007/s40820-022-00967-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Reversible proton ceramic electrochemical cell (R-PCEC) is regarded as the most promising energy conversion device, which can realize efficient mutual conversion of electrical and chemical energy and to solve the problem of large-scale energy storage. However, the development of robust electrodes with high catalytic activity is the main bottleneck for the commercialization of R-PCECs. Here, a novel type of high-entropy perovskite oxide consisting of six equimolar metals in the A-site, Pr1/6La1/6Nd1/6Ba1/6Sr1/6Ca1/6CoO3-δ (PLNBSCC), is reported as a high-performance bifunctional air electrode for R-PCEC. By harnessing the unique functionalities of multiple elements, high-entropy perovskite oxide can be anticipated to accelerate reaction rates in both fuel cell and electrolysis modes. Especially, an R-PCEC utilizing the PLNBSCC air electrode achieves exceptional electrochemical performances, demonstrating a peak power density of 1.21 W cm-2 for the fuel cell, while simultaneously obtaining an astonishing current density of - 1.95 A cm-2 at an electrolysis voltage of 1.3 V and a temperature of 600 °C. The significantly enhanced electrochemical performance and durability of the PLNBSCC air electrode is attributed mainly to the high electrons/ions conductivity, fast hydration reactivity and high configurational entropy. This research explores to a new avenue to develop optimally active and stable air electrodes for R-PCECs.
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Affiliation(s)
- Zuoqing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Zhengjie Tang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Yufei Song
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, 999077, People's Republic of China
| | - Guangming Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China.
| | - Wanru Qian
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Meiting Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Yinlong Zhu
- Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China.
| | - Ran Ran
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Wei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China
| | - Zongping Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, People's Republic of China.
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM-MECE), Curtin University, Perth, WA, 6845, Australia.
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9
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Zvonareva IA, Medvedev DA. Proton-conducting barium stannate for high-temperature purposes: A brief review. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.10.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Enhanced electrochemical activity and durability of a direct ammonia protonic ceramic fuel cell enabled by an internal catalyst layer. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Non-Isolated DC-DC Converters in Fuel Cell Applications: Thermal Analysis and Reliability Comparison. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12105026] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An alternative energy source that has appeared beyond expectations and has seen a lot of progress is the fuel cell. A proton exchange membrane (PEM) fuel cell is chosen for analysis and requires a DC-DC boost converter as an interface between the fuel cell and the load to provide a high-gain regulated voltage. Although great effort towards developing different converter topologies has been made during recent decades, less attention has been devoted to the reliability and thermal performance assessment of the present converters. In this paper, five non-isolated DC-DC converters are analyzed in terms of both thermal behavior and reliability. The temperature estimation of semiconductor devices as a critical part of the thermal analysis has been made via a detailed thermal model and the reliability is evaluated by means of a power cycling test. Finally, a performance score has been attributed using the TOPSIS ranking methodology and considering all the criteria (e.g., the number of components and cost) at the same time. The results indicated that the floating interleaved boost converter is always at the top of the list, even if the weight of the indicators is changed. When the weight of the cost criterion is higher than the reliability criterion, the multi-switch boost converter will be in second place. If the weight of the reliability criterion is greater than cost, the interleaved and multi-switch converter are ranked second and third, respectively. Additionally, the Cuk converter with a closeness coefficient of zero is always associated with the most unfavorable performance.
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12
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Bian W, Wu W, Wang B, Tang W, Zhou M, Jin C, Ding H, Fan W, Dong Y, Li J, Ding D. Revitalizing interface in protonic ceramic cells by acid etch. Nature 2022; 604:479-485. [PMID: 35444323 DOI: 10.1038/s41586-022-04457-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 01/24/2022] [Indexed: 11/09/2022]
Abstract
Protonic ceramic electrochemical cells hold promise for operation below 600 °C (refs. 1,2). Although the high proton conductivity of the bulk electrolyte has been demonstrated, it cannot be fully used in electrochemical full cells because of unknown causes3. Here we show that these problems arise from poor contacts between the low-temperature processed oxygen electrode-electrolyte interface. We demonstrate that a simple acid treatment can effectively rejuvenate the high-temperature annealed electrolyte surface, resulting in reactive bonding between the oxygen electrode and the electrolyte and improved electrochemical performance and stability. This enables exceptional protonic ceramic fuel-cell performance down to 350 °C, with peak power densities of 1.6 W cm-2 at 600 °C, 650 mW cm-2 at 450 °C and 300 mW cm-2 at 350 °C, as well as stable electrolysis operations with current densities above 3.9 A cm-2 at 1.4 V and 600 °C. Our work highlights the critical role of interfacial engineering in ceramic electrochemical devices and offers new understanding and practices for sustainable energy infrastructures.
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Affiliation(s)
- Wenjuan Bian
- Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls, ID, USA.,Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM, USA
| | - Wei Wu
- Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls, ID, USA.
| | - Baoming Wang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Wei Tang
- Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls, ID, USA.,Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM, USA
| | - Meng Zhou
- Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM, USA
| | - Congrui Jin
- Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Hanping Ding
- Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls, ID, USA
| | - Weiwei Fan
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yanhao Dong
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Ju Li
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Dong Ding
- Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls, ID, USA.
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13
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Multi-Physical and Electrochemical Coupling Model for the Protonic Ceramic Fuel Cells with H+/e−/O2− Mixed Conducting Cathodes. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083889] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A protonic ceramic fuel cell (PCFC) has great potential for medium temperature power generation. Its working process, however, is complicated and quite different from the traditional oxygen ionic solid oxide fuel cell (O2−-SOFC) and proton exchange membrane fuel cell (PEMFC). In this paper, a multi-physical model for the PCFC with H+/e−/O2− mixed conducting cathode is established, in which the fuel- and oxidant-diffusing processes; electron-, oxygen ion-, and proton-conducting processes; three electrochemical reactions; and their coupling working details are carefully considered. Taking Ni-BZCY/BZCY/BZCY-LSCF PCFC as an example, the validation of the model is well verified by good agreements with the experiment iop-Vop curves at different temperatures. The result shows that the cathodic electrochemical reactions will be concentrated to a small thickness near the electrolyte because of the greatly decreased ionic conductivity compared with the high electronic conductivity at an intermediate temperature. O2− within the PCFC cathode is only an intermediate transform substance between the electrons and protons. Thus, there is a peak oxygen ion current distribution within the composite cathode of PCFC. The cathodic oxygen reduction half reaction is found to be a key factor to dominate the total PCFC voltage loss at the intermediate temperature zone. The concentration polarization of anode-supported PCFC is small, due to the vapors that are generated in the cathode side instead of anode side.
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14
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Amperometric ammonia sensors for low detection limit with BaZr(1-x)YxO3-δ proton electrolytes. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Liang M, Zhu Y, Song Y, Guan D, Luo Z, Yang G, Jiang SP, Zhou W, Ran R, Shao Z. A New Durable Surface Nanoparticles-Modified Perovskite Cathode for Protonic Ceramic Fuel Cells from Selective Cation Exsolution under Oxidizing Atmosphere. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106379. [PMID: 34962667 DOI: 10.1002/adma.202106379] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 12/20/2021] [Indexed: 06/14/2023]
Abstract
A high-performance cathode of a protonic ceramic fuel cell (PCFC) should possess excellent oxygen reduction reactivity, high proton/oxygen-ion/electron conductivity, and sufficient operational stability, thus requiring a delicate tuning of both the bulk and surface properties of the electrode material. Although surface modification of perovskites with nanoparticles from reducing-atmosphere exsolution has been demonstrated effective at improving the electrochemical anodic oxidation, such nanoparticles would easily re-incorporate into the perovskite lattice causing a big challenge for their application as a cathode. Here, a durable perovskite-based nanocomposite cathode for PCFCs is reported, which is facilely prepared via the exsolution of nanoparticles in an oxidizing atmosphere. Through composition and cation nonstoichiometry manipulation, a precursor with the nominal composition of Ba0.95 (Co0.4 Fe0.4 Zr0.1 Y0.1 )0.95 Ni0.05 O3-δ (BCFZYN-095) is designed, synthesized, and investigated, which, upon calcination, gives rise to the formation of a perovskite-based nanocomposite comprising a major perovskite phase and a minor NiO phase enriched on the perovskite surface. The major perovskite phase enabled by the proper cation nonstoichiometry manipulation promotes bulk proton conduction while the NiO nanoparticles facilitate the oxygen surface exchange process, leading to a superior cathodic performance with a maximum peak power density of 1040 mW cm-2 at 650 °C and excellent operational stability of 400 h at 550 °C.
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Affiliation(s)
- Mingzhuang Liang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Yijun Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Yufei Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Daqin Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Zhixin Luo
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia
| | - Guangming Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - San Ping Jiang
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Ran Ran
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Zongping Shao
- 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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16
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Theoretical Investigation of the Oxygen Interaction on Co-doped YFeO3-δ as a Novel Cathode for Solid Oxide Fuel Cells. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00713-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Lescure V, Gelin M, François M, Arab Pour Yazdi M, Briois P, Demoisson F, Combemale L, Valton S, Caboche G. X-ray Micro-Computed Tomography: A Powerful Device to Analyze the 3D Microstructure of Anode-Electrolyte in BaZr 0.8Y 0.2O 3 Protonic Ceramic Electrochemical Cells and the Reduction Behavior. MEMBRANES 2022; 12:membranes12010068. [PMID: 35054594 PMCID: PMC8779603 DOI: 10.3390/membranes12010068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 11/29/2022]
Abstract
New advanced fuel cell technologies are moving towards high-temperature proton conductors (HTPCs) to meet environmental issues. Their elaboration remains a challenge and micro-computed tomography (µCT) is an innovative way to control their quality. NiO-BZY anodic supports of a protonic ceramic electrochemical cell (PCEC), elaborated by co-tape casting and co-sintered at 1350 °C, were coated with a BZY20 electrolyte layer by DC magnetron sputtering. The µCT allowed to observe defects inside the volume of these PCEC half-cells and to show their evolution after an annealing treatment at 1000 °C and reduction under hydrogen. This technique consists in obtaining a 3D reconstruction of all the cross-sectional images of the whole sample, slice by slice. This allows seeing inside the sample at any desired depth. The resolution of 0.35 µm is perfectly adapted to this type of problem considering the thickness of the different layers of the sample and the size of the defects. Defects were detected, and their interpretation was possible thanks to the 3D view, such as the phenomenon of NiO grain enlargement explaining defects in the electrolyte, the effect of NiO reduction, and finally, some anomalies due to the shaping process. Ways to anticipate these defects were then proposed.
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Affiliation(s)
- Victoire Lescure
- Laboratoire Interdisciplinaire Carnot de Bourgogne, FCLAB, ICB-UMR6303, CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Savary, BP47870, CEDEX, 21078 Dijon, France; (V.L.); (M.F.); (F.D.); (L.C.)
- Institut FEMTO-ST, FCLAB, UMR 6174, CNRS, University Bourgogne Franche-Comté, 15B Avenue des Montboucons, 25030 Besançon, France; (M.A.P.Y.); (P.B.)
| | - Morgane Gelin
- RX Solutions SAS, 24 Bis Rue Uranus, ZAC Altaïs, 74650 Chavanod, France; (M.G.); (S.V.)
| | - Mélanie François
- Laboratoire Interdisciplinaire Carnot de Bourgogne, FCLAB, ICB-UMR6303, CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Savary, BP47870, CEDEX, 21078 Dijon, France; (V.L.); (M.F.); (F.D.); (L.C.)
| | - Mohammad Arab Pour Yazdi
- Institut FEMTO-ST, FCLAB, UMR 6174, CNRS, University Bourgogne Franche-Comté, 15B Avenue des Montboucons, 25030 Besançon, France; (M.A.P.Y.); (P.B.)
| | - Pascal Briois
- Institut FEMTO-ST, FCLAB, UMR 6174, CNRS, University Bourgogne Franche-Comté, 15B Avenue des Montboucons, 25030 Besançon, France; (M.A.P.Y.); (P.B.)
| | - Frédéric Demoisson
- Laboratoire Interdisciplinaire Carnot de Bourgogne, FCLAB, ICB-UMR6303, CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Savary, BP47870, CEDEX, 21078 Dijon, France; (V.L.); (M.F.); (F.D.); (L.C.)
| | - Lionel Combemale
- Laboratoire Interdisciplinaire Carnot de Bourgogne, FCLAB, ICB-UMR6303, CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Savary, BP47870, CEDEX, 21078 Dijon, France; (V.L.); (M.F.); (F.D.); (L.C.)
| | - Solène Valton
- RX Solutions SAS, 24 Bis Rue Uranus, ZAC Altaïs, 74650 Chavanod, France; (M.G.); (S.V.)
| | - Gilles Caboche
- Laboratoire Interdisciplinaire Carnot de Bourgogne, FCLAB, ICB-UMR6303, CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Savary, BP47870, CEDEX, 21078 Dijon, France; (V.L.); (M.F.); (F.D.); (L.C.)
- Correspondence:
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18
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Thermodynamic Modeling and Analysis of Proton Ceramic Fuel Cells: Power Optimization. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-06262-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Tarasova NA, Galisheva AO, Animitsa IE, Lebedeva EL. Oxygen-Ion and Proton Transport in Sc-Doped Layered Perovskite BaLaInO4. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193521080127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Creating and Preserving Nanoparticles during Co-Sintering of Solid Oxide Electrodes and Its Impact on Electrocatalytic Activity. Catalysts 2021. [DOI: 10.3390/catal11091073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel processing method that creates and preserves ceramic nanoparticles in solid oxide electrodes during co-sintering at traditional sintering temperatures is introduced. Specifically, carbon templated samarium-doped ceria nanoparticles (nSDC) were successfully integrated with commercial lanthanum strontium cobalt ferrite (LSCF) and commercial SDC powders, producing LSCF-SDC-nSDC cathodes upon processing. The effect of nSDC concentration on cathode electrocatalytic activity was investigated at low operational temperatures, 600 °C–700 °C, with symmetrical cells. Low nSDC loadings, ≤5 wt% nSDC, significantly decreased cell polarization resistance whereas higher loadings increased it. The best electrochemical performance was achieved with 5 wt% nSDC, lowering the polarization resistance by 41% at 600 °C. Fuel cell tests demonstrate that adding 5 wt% nSDC increased the maximum fuel cell power density by 38%. Electrochemical impedance spectra showed substantial improvements in both fuel cell polarization resistance and ohmic resistance, indicating that nSDC increased the electrocatalytically active area of the cathode. This work demonstrates a simple, novel method for effectively increasing electrocatalytic activity of solid oxide electrodes at low operational temperatures.
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21
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Kim D, Son SJ, Kim M, Park HJ, Joo JH. PrBaFe2O5+ promising electrode for redox-stable symmetrical proton-conducting solid oxide fuel cells. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2021.05.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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A review of current performance of rare earth metal-doped barium zirconate perovskite: The promising electrode and electrolyte material for the protonic ceramic fuel cells. PROG SOLID STATE CH 2021. [DOI: 10.1016/j.progsolidstchem.2021.100325] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Tao Z, Xu X, Bi L. Density functional theory calculations for cathode materials of proton-conducting solid oxide fuel cells: A mini-review. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107072] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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24
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Zhu PX, Wang LC, Stewart F, Ding D, Matz J, Dong P, Ding H. Direct conversion of natural gases in solid oxide cells: A mini-review. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Tarasova NA, Galisheva AO, Animitsa IE. Effect of the Heterovalent Doping of a Cation Sublattice on Hydration and the State of Oxygen–Hydrogen Groups in Complex Oxide BaLaIn0.9M0.1O3.95 (M = Mg, Zn) with Ruddlesden–Popper Structure. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421050253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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A series of alkali metal elements doped La2Ce2O7 electrolytes for solid oxide fuel cells. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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27
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Abstract
Solid oxide fuel cells (SOFCs) are promising and rugged solid-state power sources that can directly and electrochemically convert the chemical energy into electric power. Direct-hydrocarbon SOFCs eliminate the external reformers; thus, the system is significantly simplified and the capital cost is reduced. SOFCs comprise the cathode, electrolyte, and anode, of which the anode is of paramount importance as its catalytic activity and chemical stability are key to direct-hydrocarbon SOFCs. The conventional SOFC anode is composed of a Ni-based metallic phase that conducts electrons, and an oxygen-ion conducting oxide, such as yttria-stabilized zirconia (YSZ), which exhibits an ionic conductivity of 10−3–10−2 S cm−1 at 700 °C. Although YSZ-based SOFCs are being commercialized, YSZ-Ni anodes are still suffering from carbon deposition (coking) and sulfur poisoning, ensuing performance degradation. Furthermore, the high operating temperatures (>700 °C) also pose challenges to the system compatibility, leading to poor long-term durability. To reduce operating temperatures of SOFCs, intermediate-temperature proton-conducting SOFCs (P-SOFCs) are being developed as alternatives, which give rise to superior power densities, coking and sulfur tolerance, and durability. Due to these advances, there are growing efforts to implement proton-conducting oxides to improve durability of direct-hydrocarbon SOFCs. However, so far, there is no review article that focuses on direct-hydrocarbon P-SOFCs. This concise review aims to first introduce the fundamentals of direct-hydrocarbon P-SOFCs and unique surface properties of proton-conducting oxides, then summarize the most up-to-date achievements as well as current challenges of P-SOFCs. Finally, strategies to overcome those challenges are suggested to advance the development of direct-hydrocarbon SOFCs.
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28
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Analysis of La4Ni3O10±δ-BaCe0.9Y0.1O3-δ Composite Cathodes for Proton Ceramic Fuel Cells. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11083407] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Layered Ruddlesden-Popper (RP) lanthanide nickelates, Lnn+1NinO3n+1 (Ln = La, Pr, and Nd; n = 1, 2, and 3) have generated great interest as potential cathodes for proton conducting fuel cells (PCFCs). The high-order phase (n = 3) is especially intriguing, as it possesses the property of a high and metallic-type electronic conductivity that persists to low temperatures. To provide the additional requirement of high ionic conductivity, a composite electrode is here suggested, formed by a combination of La4Ni3O10±δ with the proton conducting phase BaCe0.9Y0.1O3-δ (40 vol%). Electrochemical impedance spectroscopy (EIS) is used to analyse this composite electrode in both wet (pH2O ~ 10−2 atm) and low humidity (pH2O ~ 10−5 atm) conditions in an O2 atmosphere (400–550 °C). An extended analysis that first tests the stability of the impedance data through Kramers-Kronig and Bayesian Hilbert transform relations is outlined, that is subsequently complemented with the distribution function of relaxation times (DFRTs) methodology. In a final step, correction of the impedance data against the short-circuiting contribution from the electrolyte substrate is also performed. This work offers a detailed assessment of the La4Ni3O10±δ-BaCe0.9Y0.1O3-δ composite cathode, while providing a robust analysis methodology for other researchers working on the development of electrodes for PCFCs.
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29
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Papac M, Stevanović V, Zakutayev A, O'Hayre R. Triple ionic-electronic conducting oxides for next-generation electrochemical devices. NATURE MATERIALS 2021; 20:301-313. [PMID: 33349671 DOI: 10.1038/s41563-020-00854-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 10/13/2020] [Indexed: 06/12/2023]
Abstract
Triple ionic-electronic conductors (TIECs) are materials that can simultaneously transport electronic species alongside two ionic species. The recent emergence of TIECs provides intriguing opportunities to maximize performance in a variety of electrochemical devices, including fuel cells, membrane reactors and electrolysis cells. However, the potential application of these nascent materials is limited by lack of fundamental knowledge of their transport properties and electrocatalytic activity. The goal of this Review is to summarize and analyse the current understanding of TIEC transport and electrochemistry in single-phase materials, including defect formation and conduction mechanisms. We particularly focus on the discovery criteria (for example, crystal structure and ion electronegativity), design principles (for example, cation and anion substitution chemistry) and operating conditions (for example, atmosphere) of materials that enable deliberate tuning of the conductivity of each charge carrier. Lastly, we identify important areas for further advances, including higher chemical stability, lower operating temperatures and discovery of n-type TIEC materials.
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Affiliation(s)
- Meagan Papac
- Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA
- Materials Science Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Vladan Stevanović
- Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA
- Materials Science Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Andriy Zakutayev
- Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA
- Materials Science Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Ryan O'Hayre
- Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA.
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30
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Ngabonziza P, Wang Y, van Aken PA, Maier J, Mannhart J. Inelastic Electron Tunneling Spectroscopy at High-Temperatures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007299. [PMID: 33458887 DOI: 10.1002/adma.202007299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/04/2020] [Indexed: 06/12/2023]
Abstract
Ion conducting materials are critical components of batteries, fuel cells, and devices such as memristive switches. Analytical tools are therefore sought that allow the behavior of ions in solids to be monitored and analyzed with high spatial resolution and in real time. In principle, inelastic tunneling spectroscopy offers these capabilities. However, as its spectral resolution is limited by thermal softening of the Fermi-Dirac distribution, tunneling spectroscopy is usually constrained to cryogenic temperatures. This constraint would seem to render tunneling spectroscopy useless for studying ions in motion. Here, the first inelastic tunneling spectroscopy studies above room temperature are reported. For these measurements, high-temperature-stable tunnel junctions that incorporate within the tunnel barrier ultrathin layers for efficient proton conduction are developed. By analyzing the vibrational modes of OH bonds in BaZrO3 -based heterostructures, the detection of protons with a spectral resolution of 20 meV at 400 K (full-width-at-half maximum) is demonstrated. Overturning the hitherto existing prediction for the spectral resolution limit of 186 meV (5.4 kB T ) at 400 K, this resolution enables high-temperature tunneling spectroscopy of ion conductors. With these advances, inelastic tunneling spectroscopy constitutes a novel, valuable analytical tool for solid-state ionics.
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Affiliation(s)
- Prosper Ngabonziza
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, Stuttgart, 70569, Germany
| | - Yi Wang
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, Stuttgart, 70569, Germany
| | - Peter A van Aken
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, Stuttgart, 70569, Germany
| | - Joachim Maier
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, Stuttgart, 70569, Germany
| | - Jochen Mannhart
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, Stuttgart, 70569, Germany
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31
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Kim S, Kim G, Manthiram A. A Bifunctional Hybrid Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions: Nano-Co 3O 4-Deposited La 0.5Sr 0.5MnO 3 via Infiltration. Molecules 2021; 26:molecules26020277. [PMID: 33429877 PMCID: PMC7827265 DOI: 10.3390/molecules26020277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/27/2020] [Accepted: 01/05/2021] [Indexed: 11/18/2022] Open
Abstract
For rechargeable metal–air batteries, which are a promising energy storage device for renewable and sustainable energy technologies, the development of cost-effective electrocatalysts with effective bifunctional activity for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) has been a challenging task. To realize highly effective ORR and OER electrocatalysts, we present a hybrid catalyst, Co3O4-infiltrated La0.5Sr0.5MnO3-δ (LSM@Co3O4), synthesized using an electrospray and infiltration technique. This study expands the scope of the infiltration technique by depositing ~18 nm nanoparticles on unprecedented ~70 nm nano-scaffolds. The hybrid LSM@Co3O4 catalyst exhibits high catalytic activities for both ORR and OER (~7 times, ~1.5 times, and ~1.6 times higher than LSM, Co3O4, and IrO2, respectively) in terms of onset potential and limiting current density. Moreover, with the LSM@Co3O4, the number of electrons transferred reaches four, indicating that the catalyst is effective in the reduction reaction of O2 via a direct four-electron pathway. The study demonstrates that hybrid catalysts are a promising approach for oxygen electrocatalysts for renewable and sustainable energy devices.
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Affiliation(s)
- Seona Kim
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA;
| | - Guntae Kim
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
- Correspondence: (G.K.); (A.M.)
| | - Arumugam Manthiram
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA;
- Correspondence: (G.K.); (A.M.)
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32
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Weng G, Ouyang K, Lin X, Xue J, Wang H. Proton conducting membranes for hydrogen and ammonia production. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00207d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Dense proton conducting membranes possess 100% hydrogen selectivity and excellent stability under practical conditions, and serve as promising technologies for hydrogen and ammonia production.
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Affiliation(s)
- Guowei Weng
- School of Chemistry & Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, No. 381 Wushan Road, Guangzhou 510640, China
| | - Kun Ouyang
- School of Chemistry & Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, No. 381 Wushan Road, Guangzhou 510640, China
| | - Xuanhe Lin
- School of Chemistry & Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, No. 381 Wushan Road, Guangzhou 510640, China
| | - Jian Xue
- School of Chemistry & Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, No. 381 Wushan Road, Guangzhou 510640, China
| | - Haihui Wang
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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33
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Chiara A, Giannici F, Pipitone C, Longo A, Aliotta C, Gambino M, Martorana A. Solid-Solid Interfaces in Protonic Ceramic Devices: A Critical Review. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55537-55553. [PMID: 33263981 PMCID: PMC8016165 DOI: 10.1021/acsami.0c13092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
The literature concerning protonic ceramic devices is critically reviewed focusing the reader's attention on the structure, composition, and phenomena taking place at solid-solid interfaces. These interfaces play a crucial role in the overall device performance, and the relevance of understanding the phenomena taking place at the interfaces for the further improvement of electrochemical protonic ceramic devices is therefore stressed. The grain boundaries and heterostructures in electrolytic membranes, the electrode-electrolyte contacts, and the interfaces within composite anode and cathode materials are all considered, with specific concern to advanced techniques of characterization and to computational modeling by ab initio approaches. An outlook about future developments and improvements highlights the necessity of a deeper insight into the advanced analysis of what happens at the solid-solid interfaces and of in situ/operando investigations that are presently sporadic in the literature on protonic ceramic devices.
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Affiliation(s)
- Alessandro Chiara
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
| | - Francesco Giannici
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
| | - Candida Pipitone
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
| | - Alessandro Longo
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, UOS Palermo, Via Ugo La Malfa, 153, 90146 Palermo, Italy
- European
Synchrotron Radiation Facility, 71, avenue des Martyrs, Grenoble, F-38000, France
| | - Chiara Aliotta
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
| | - Marianna Gambino
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
| | - Antonino Martorana
- Dipartimento
di Fisica e Chimica, Università di
Palermo, viale delle Scienze, I-90128 Palermo, Italy
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Kumar Baral A, Vijaya Sankar K, Matatyaho A, Kushnir G, Tsur Y. Tri-Functional Double Perovskite Oxide Catalysts for Fuel Cells and Electrolyzers. CHEMSUSCHEM 2020; 13:5671-5682. [PMID: 32881405 DOI: 10.1002/cssc.202001503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/24/2020] [Indexed: 06/11/2023]
Abstract
Perovskite oxides are at the forefront of the race to develop catalysts/electrodes for fuel cells and electrolyzers. This work presents trifunctional properties of the double-perovskite oxide PrBa0.5 Sr0.5 Co1.5 Fe0.5 O5+δ and the PrBa0.5 Sr0.5 Co1.5 Fe0.5 O5+δ -Ag composite prepared by the glycine nitrate process. The electrocatalytic studies reveal that the Ag-based composite is an excellent catalyst for both oxygen evolution (OER) and hydrogen evolution reactions (HER) in alkaline solution. The electrochemical impedance spectroscopy analysis through distribution function of relaxation times (DFRT) suggests that the improved activity originates from the suppression of resistance contributed by various relaxation processes. The oxygen reduction reaction (ORR) kinetics in these oxide-based cathodes has been studied by performing symmetric-cell measurements at high temperatures using both oxygen-ion and proton-conducting cells. DC bias dependence of charge-transfer processes, oxygen-surface kinetics, polarization resistances, and activation energies are revealed by DFRT studies. Ag addition in PrBa0.5 Sr0.5 Co1.5 Fe0.5 O5+δ leads to enhanced kinetics of OER, HER, and ORR.
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Affiliation(s)
- Ashok Kumar Baral
- Department of Chemical Engineering, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
| | - Kalimuthu Vijaya Sankar
- Department of Chemical Engineering, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
- The Nancy and Stephen Grand Technion Energy Program, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
| | - Asia Matatyaho
- Department of Chemical Engineering, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
| | - Gil Kushnir
- Department of Chemical Engineering, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yoed Tsur
- Department of Chemical Engineering, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
- The Nancy and Stephen Grand Technion Energy Program, Technion- Israel Institute of Technology, Haifa, 3200003, Israel
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Chen K, Jiang SP. Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties. ELECTROCHEM ENERGY R 2020. [DOI: 10.1007/s41918-020-00078-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Solid oxide cells (SOCs) are highly efficient and environmentally benign devices that can be used to store renewable electrical energy in the form of fuels such as hydrogen in the solid oxide electrolysis cell mode and regenerate electrical power using stored fuels in the solid oxide fuel cell mode. Despite this, insufficient long-term durability over 5–10 years in terms of lifespan remains a critical issue in the development of reliable SOC technologies in which the surface segregation of cations, particularly strontium (Sr) on oxygen electrodes, plays a critical role in the surface chemistry of oxygen electrodes and is integral to the overall performance and durability of SOCs. Due to this, this review will provide a critical overview of the surface segregation phenomenon, including influential factors, driving forces, reactivity with volatile impurities such as chromium, boron, sulphur and carbon dioxide, interactions at electrode/electrolyte interfaces and influences on the electrochemical performance and stability of SOCs with an emphasis on Sr segregation in widely investigated (La,Sr)MnO3 and (La,Sr)(Co,Fe)O3−δ. In addition, this review will present strategies for the mitigation of Sr surface segregation.
Graphic Abstract
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36
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Jie P, Du J, Tan W, Tang J, Zhang F, Qu F. Effect of cross‐linking degree on proton conductivity of a Schiff‐Base network impregnated with Brønsted acids. J Appl Polym Sci 2020. [DOI: 10.1002/app.49745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pengfei Jie
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
| | - Jiarui Du
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
| | - Wei Tan
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
| | - Jiyu Tang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
| | - Feng Zhang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
| | - Fengyu Qu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering Harbin Normal University Harbin China
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Performance and distribution of relaxation times analysis of Ruddlesden-Popper oxide Sr3Fe1.3Co0.2Mo0.5O7-δ as a potential cathode for protonic solid oxide fuel cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136444] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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38
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Mazzei L, Rukser D, Biebl F, Grimm-Lebsanft B, Neuber G, Pergolesi D, Börjesson L, Rübhausen MA, Andreasson J, Karlsson M. Phonon spectra of pure and acceptor doped BaZrO 3investigated with visible and UV Raman spectroscopy. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:405403. [PMID: 32628643 DOI: 10.1088/1361-648x/ab95d1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
We report results from visible and UV Raman spectroscopy studies of the phonon spectra of a polycrystalline sample of the prototypical perovskite type oxide BaZrO3and a 500 nm thick film of its Y-doped, proton conducting, counterpart BaZr0.8Y0.2O2.9. Analysis of the Raman spectra measured using different excitation energies (between 3.44 eV and 5.17 eV) reveals the activation of strong resonance Raman effects involving all lattice vibrational modes. Specifically, two characteristic energies were identified for BaZrO3, one around 5 eV and one at higher energy, respectively, and one for BaZr0.8Y0.2O2.9, above 5 eV. Apart from the large difference in spectral intensity between the non-resonant and resonant conditions, the spectra are overall similar to each other, suggesting that the vibrational spectra of the perovskites are stable when investigated using an UV laser as excitation source. These results encourage further use of UV Raman spectroscopy as a novel approach for the study of lattice vibrational dynamics and local structure in proton conducting perovskites, and open up for, e.g., time-resolved experiments on thin films targeted at understanding the role of lattice vibrations in proton transport in these kinds of materials.
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Affiliation(s)
- Laura Mazzei
- Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Dieter Rukser
- Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Center for Free Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Florian Biebl
- Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Center for Free Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Benjamin Grimm-Lebsanft
- Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Center for Free Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Gerd Neuber
- Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Center for Free Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Daniele Pergolesi
- Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - Lars Börjesson
- Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
| | - Michael A Rübhausen
- Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Center for Free Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Jakob Andreasson
- Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Maths Karlsson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden
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Xia J, Wang C, Wang X, Bi L, Zhang Y. A perspective on DRT applications for the analysis of solid oxide cell electrodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136328] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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40
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Tarasova NA. Effect of fluorine doping on the ionic (O2−, H+) conductivity of oxygen-deficient complex oxides. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2895-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Xie D, Ling A, Yan D, Jia L, Chi B, Pu J, Li J. A comparative study on the composite cathodes with proton conductor and oxygen ion conductor for proton-conducting solid oxide fuel cell. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136143] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gao J, Liu Y, Meng Y, Hu M, Brinkman KS. Fluoride‐Based Anion Doping: A New Strategy for Improving the Performance of Protonic Ceramic Conductors of the Form BaZrO
3. ChemElectroChem 2020. [DOI: 10.1002/celc.202000154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Gao
- Department of Materials Science and Engineering Clemson University Clemson SC 29634 USA
| | - Yinqiao Liu
- Department of Mechanical Engineering University of South Carolina Columbia SC 29201
| | - Yuqing Meng
- Department of Materials Science and Engineering Clemson University Clemson SC 29634 USA
| | - Ming Hu
- Department of Mechanical Engineering University of South Carolina Columbia SC 29201
| | - Kyle S. Brinkman
- Department of Materials Science and Engineering Clemson University Clemson SC 29634 USA
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Tarasova NA, Galisheva AO, Animitsa IE, Korona DV. Hydration and the State of Oxygen–Hydrogen Groups in the Complex Oxide BaLaIn0.9Nb0.1O4.1 with the Ruddlesden–Popper Structure. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420030309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Loureiro FJ, Ramasamy D, Ribeiro AF, Mendes A, Fagg DP. Underscoring the transport properties of yttrium-doped barium cerate in nominally dry oxidising conditions. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Osman N, Malek NIA, Ismail I, Habiballah AS, Jani AMM. Development of MCSF (M=La, Ba) cathode materials for proton conducting fuel cell application. AIP CONFERENCE PROCEEDINGS 2020. [DOI: 10.1063/5.0003786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Schneller T, Griesche D. Inkjet Printed Y-Substituted Barium Zirconate Layers as Electrolyte Membrane for Thin Film Electrochemical Devices. MEMBRANES 2019; 9:E131. [PMID: 31614593 PMCID: PMC6835695 DOI: 10.3390/membranes9100131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/30/2019] [Accepted: 10/06/2019] [Indexed: 11/16/2022]
Abstract
In this work, the inkjet printing of proton conducting Y-substituted barium zirconate (BZY) thin films was studied. Two different kinds of precursor inks, namely a rather molecular BZY precursor solution and a BZY nanoparticle dispersion, have been synthesized and initially investigated with regard to their decomposition and phase formation behavior by thermal analysis, X-ray diffraction, and scanning electron microscopy. Their wetting behavior and rheological properties have been determined in order to evaluate their fundamental suitability for the inkjet process. Crystalline films have been already obtained at 700 °C, which is significantly lower compared to conventional solid-state synthesis. Increasing the temperature up to 1000 °C results in higher crystal quality. Permittivity measurements gave values of around 36 that are in good agreement with the literature while also proving the integrity of the materials. A modification of the as-synthesized BZY stock solution and nanoparticle dispersion by dilution with propionic acid improved the jetability of both inks and yielded homogeneous BZY coatings from both inks. In order to study the electrochemical properties of BZY films derived from the two printed inks, BZY coatings on sapphire substrates were prepared and characterized by electrochemical impedance spectroscopy.
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Affiliation(s)
- Theodor Schneller
- Institut für Werkstoffe der Elektrotechnik 2 & JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany.
| | - David Griesche
- Institut für Werkstoffe der Elektrotechnik 2 & JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany.
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Tarasova NA, Galisheva AO, Animitsa IE. Effect of the Halogen Dopant (F–, Cl–) on the Transport Properties of Proton Conductors Based on Ba4In2Zr2O11. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519080159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Tarasova NA, Galisheva AO, Animitsa IE. Hydration Processes and State of Oxygen-Hydrogen Groups in Fluorine-Substituted Perovskites Based on Ba4In2Zr2O11. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419070276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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49
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Incorporation and Conduction of Protons in Ca, Sr, Ba-Doped BaLaInO 4 with Ruddlesden-Popper Structure. MATERIALS 2019; 12:ma12101668. [PMID: 31121880 PMCID: PMC6566999 DOI: 10.3390/ma12101668] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 12/04/2022]
Abstract
The new phases BaLa0.9M0.1InO3.95 (M = Ca2+, Sr2+, Ba2+) with a Ruddlesden-Popper structure were obtained. It was established that all investigated samples were capable for the water uptake from the gas phase. The ability of water incorporation was due to not only by the presence of oxygen vacancies, but also due to the presence of La-O blocks in the structure. The degree of hydration of the samples was much higher than the concentration of oxygen vacancies and the composition of the samples appear to be BaLaInO3.42(OH)1.16, BaLa0.9Ca0.1InO3.25(OH)1.4, BaLa0.9Sr0.1InO3.03(OH)1.84, BaLa0.9Ba0.1InO2.9(OH)2.1. The degree of hydration increased with an increase in the size of the dopant, i.e., with an increase in the size of the salt blocks. It was proven that doping led to the increase in the oxygen ionic conductivity. The conductivities for doped samples BaLa0.9M0.1InO3.95 were higher than for undoped composition BaLaInO4 at ~1.5 order of magnitude. The increase in the conductivity was mainly attributed to the increase of the carrier concentration as a result of the formation of oxygen vacancies during doping. The proton conductivities of doped samples increased in the order Ca2+–Sr2+–Ba2+ due to an increase in the concentration of protons. It was established that all doped samples demonstrated the dominant proton transport below 450 °C.
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Tarasova N, Animitsa I. Fluorine and chlorine doping in oxygen-deficient perovskites: A strategy for improving chemical stability. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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