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Buzi F, Kreka K, Santiso J, Rapenne L, Sha Z, Douglas JO, Chiabrera F, Morata A, Burriel M, Skinner S, Bernadet L, Baiutti F, Tarancón A. A Self-Assembled Multiphasic Thin Film as an Oxygen Electrode for Enhanced Durability in Reversible Solid Oxide Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43462-43473. [PMID: 39109991 DOI: 10.1021/acsami.4c06290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The implementation of nanocomposite materials as electrode layers represents a potential turning point for next-generation of solid oxide cells in order to reduce the use of critical raw materials. However, the substitution of bulk electrode materials by thin films is still under debate especially due to the uncertainty about their performance and stability under operando conditions, which restricts their use in real applications. In this work, we propose a multiphase nanocomposite characterized by a highly disordered microstructure and high cationic intermixing as a result from thin-film self-assembly of a perovskite-based mixed ionic-electronic conductor (lanthanum strontium cobaltite) and a fluorite-based pure ionic conductor (samarium-doped ceria) as an oxygen electrode for reversible solid oxide cells. Electrochemical characterization shows remarkable oxygen reduction reaction (fuel cell mode) and oxygen evolution activity (electrolysis mode) in comparison with state-of-the-art bulk electrodes, combined with outstanding long-term stability at operational temperatures of 700 °C. The disordered nanostructure was implemented as a standalone oxygen electrode on commercial anode-supported cells, resulting in high electrical output in fuel cell and electrolysis mode for active layer thicknesses of only 200 nm (>95% decrease in critical raw materials with respect to conventional cathodes). The cell was operated for over 300 h in fuel cell mode displaying excellent stability. Our findings unlock the hidden potential of advanced thin-film technologies for obtaining high-performance disordered electrodes based on nanocomposite self-assembly combining long durability and minimized use of critical raw materials.
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Affiliation(s)
- Fjorelo Buzi
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
| | - Kosova Kreka
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
| | - Jose Santiso
- Catalonia Institute for Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus de la Universitat Autònoma de Barcelona (UAB), Barcelona, Bellaterra 08193, Spain
| | - Laetitia Rapenne
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LMGP, Grenoble 38000, France
| | - Zijie Sha
- Department of Materials, Imperial College London, Exhibition Road, London SW7, U.K
| | - James O Douglas
- Department of Materials, Imperial College London, Exhibition Road, London SW7, U.K
| | - Francesco Chiabrera
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
| | - Alex Morata
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
| | - Monica Burriel
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LMGP, Grenoble 38000, France
| | - Stephen Skinner
- Department of Materials, Imperial College London, Exhibition Road, London SW7, U.K
| | - Lucile Bernadet
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
| | - Federico Baiutti
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
- Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
| | - Albert Tarancón
- Department of Advanced Materials for Energy, Catalonia Institute for Energy Research (IREC), Barcelona 08930, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig LlRuís Companys 23, Barcelona 08010, Spain
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2
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Zhao W, Zhou H, Li J, Lu Y, Ding Y. Atomic Layer Deposition of CeO 2 Film with a Novel Heteroleptic Ce(III) Complex. Molecules 2024; 29:2987. [PMID: 38998939 PMCID: PMC11243042 DOI: 10.3390/molecules29132987] [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: 05/29/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
In this paper, four heteroleptic Ce(III) complexes, including Ce(thd)3-phen (thd = 2,2,6,6-tetramethyl-3,5-heptanedione, phen = 1, 10-phenanthroline (1), Ce(thd)3-MEDA (MEDA = N-Methylethylenediamine (2), Ce(thd)3-MOMA (MOMA = N-(2-Methoxyethyl)methylamine (3), and Ce(thd)3-DMDE (DMDE = N,N″-dimethyl ethanol amine (4), were synthesized and characterized with 1H-NMR, elemental analysis, and X-ray single-crystal diffraction. The thermogravimetric analysis and vapor pressure results indicated that the complexing ability of a nitrogen-containing bidentate ligand with a cerium ion was stronger than that of a mixed oxygen-nitrogen-containing bidentate ligand. Complex 2 was selected as an ALD precursor to deposit a CeO2 film on a SiO2/Si (100) wafer. The self-limited deposition results demonstrated that complex 2 was a potential ALD precursor.
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Affiliation(s)
- Wenyong Zhao
- International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Hong Zhou
- International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Jiahao Li
- International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yuchen Lu
- International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yuqiang Ding
- International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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3
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Jeong D, Jang G, Hong S. Thermally Stable Silver Cathode Covered by Samaria-Doped Ceria for Low-Temperature Solid Oxide Fuel Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:561. [PMID: 38607096 PMCID: PMC11013831 DOI: 10.3390/nano14070561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 03/06/2024] [Accepted: 03/20/2024] [Indexed: 04/13/2024]
Abstract
Samaria-doped ceria (SDC) overlayers were deposited on Ag cathodes by sputtering. The SDC sputtering time was varied to investigate the properties of the Ag-SDC overlayer cathode-coated fuel cells depending on the thickness of the SDC overlayers. Among the fabricated fuel cells, Ag with a 10-nm-thick SDC overlayer (Ag-SDC10) cathode-coated fuel cell exhibited the highest peak power density of 6.587 mW/cm2 at 450 °C, showing higher performance than a pristine Pt-coated fuel cell. Moreover, electrochemical impedance spectroscopy revealed that the Ag-SDC10 cathode-coated fuel cell significantly mitigated polarization loss originating from enhanced oxygen reduction reaction kinetics compared to the pristine Ag-coated fuel cell.
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Affiliation(s)
| | | | - Soonwook Hong
- Department of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea; (D.J.); (G.J.)
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4
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Jo SE, Jeon S, Kim HJ, Yang BC, Ju K, Gür TM, Jung W, An J. Simultaneous Performance and Stability Enhancement in Intermediate Temperature Solid Oxide Fuel Cells by Powder-Atomic Layer Deposited LSCF@ZrO 2 Cathodes. SMALL METHODS 2023:e2300790. [PMID: 37749956 DOI: 10.1002/smtd.202300790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/26/2023] [Indexed: 09/27/2023]
Abstract
Employing porous structures is essential in high-performance electrochemical energy devices. However, obtaining uniform functional coatings on high-tortuosity structures can be challenging, even with specialized processes such as atomic layer deposition (ALD). Herein, a novel method for achieving a porous composite electrode for solid oxide fuel cells by coating La0.6 Sr0.4 Co0.2 Fe0.8 O3 -δ (LSCF) powders with ZrO2 using a powder ALD process is presented. Unlike conventional ALD, powder ALD can be used to fabricate extremely uniform coatings on porous electrodes with a thickness of tens of micrometers. The powder ALD ZrO2 coating is found to effectively suppress chemical degradation of the LSCF electrodes. The cell with the powder ALD coated cathode shows a 2.2 times higher maximum power density and 60% lower thermal degradation in activation resistance than the bare LSCF cathode cell at 700-750 °C. The result demonstrated in this study is expected to have significant implications for high-performance and durable electrodes in energy conversion/storage devices.
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Affiliation(s)
- Sung Eun Jo
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, 37673, South Korea
| | - SungHyun Jeon
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Hyong June Kim
- Department of Nano-Bio Engineering, Research Institute of Energy and Environment, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, South Korea
| | - Byung Chan Yang
- Energy Materials Research Center Clean Energy Research Division, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Kyoungjae Ju
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, 37673, South Korea
| | - Turgut M Gür
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - WooChul Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Jihwan An
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, 37673, South Korea
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Ryu S, Choi IW, Kim YJ, Lee S, Jeong W, Yu W, Cho GY, Cha SW. Nanocrystal Engineering of Thin-Film Yttria-Stabilized Zirconia Electrolytes for Low-Temperature Solid-Oxide Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42659-42666. [PMID: 37665642 DOI: 10.1021/acsami.3c09025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
To overcome significantly sluggish oxygen-ion conduction in the electrolytes of low-temperature solid-oxide fuel cells (SOFCs), numerous researchers have devoted considerable effort to fabricating the electrolytes as thin as possible. However, thickness is not the only factor that affects the electrolyte performance; roughness, grain size, and internal film stress also play a role. In this study, yttria-stabilized zirconia (YSZ) was deposited via a reactive sputtering process to fabricate high-performance thin-film electrolytes. Various sputtering chamber pressures (5, 10, and 15 mTorr) were investigated to improve the electrolytes. As a result, high surface area, large grain size, and residual tensile stress were successfully obtained by increasing the sputtering pressure. To clarify the correlation between the microstructure and electrolyte performance, a YSZ thin-film electrolyte was applied to anodized aluminum oxide-supported SOFCs composed of conventional electrode materials which are Ni and Pt as the anode and the cathode, respectively. The thin-film SOFC with YSZ deposited at 15 mTorr exhibited the lowest ohmic resistance and, consequently, the highest maximum power density (493 mW/cm2) at 500 °C whose performance is more than five times higher than that of the cell with YSZ deposited at 5 mTorr (94.1 mW/cm2). Despite the basic electrode materials, exceptionally high performance at low operating temperature was achieved via controlling the single fabrication condition for the electrolyte.
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Affiliation(s)
- Sangbong Ryu
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Mechanical Engineering/SNU-IAMD, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - In Won Choi
- Department of Mechanical Engineering/SNU-IAMD, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Yang Jae Kim
- Department of Mechanical Engineering/SNU-IAMD, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sanghoon Lee
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Wonyeop Jeong
- Department of Mechanical Engineering/SNU-IAMD, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Wonjong Yu
- Department of Mechanical Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Gu Young Cho
- Department of Mechanical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do 16890, Republic of Korea
| | - Suk Won Cha
- Department of Mechanical Engineering/SNU-IAMD, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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Cai H, Zheng D, Xia C, Zhang L, Wang X, Dong W, Chen X, Wang H, Wang B. Improving the electrochemical energy conversion of solid oxide fuel cells through the interface effect in La 0.6Sr 0.4Co 0.2Fe 0.8O 3-δ-BaTiO 3-δ electrolyte. J Colloid Interface Sci 2023; 641:70-81. [PMID: 36924547 DOI: 10.1016/j.jcis.2023.03.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
Herein, we present a heterostructure electrolyte with considerable potential for application in low-temperature solid oxide fuel cells (LT-SOFCs). Heterostructure electrolytes are advantageous because the multiphase interfaces in their heterostructures are superior for ion conduction than for bulk conduction. Most previous studies on heterostructure electrolytes explained the influence of interfacial parameters on ion conduction in terms of the space charge zones and lattice mismatch, neglecting the characterization of the interface. In this study, a series of heterostructure electrolytes comprising La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and BaTiO3-δ (BTO) with different composition ratios was developed. Further, the lattice mismatch due to thermal stress in this system was evaluated by thermal expansion and electron energy loss spectroscopy (EELS) analyses. Results indicated that 7LSCF-3BTO produced the narrowest interface and the most surface oxygen vacancies, suggesting that the stress generated by thermal expansion increased the density of the interface. The cell with the optimal 7LSCF-3BTO composition delivered a peak power density of 910mW cm-2 and an open circuit voltage of 1.07 V at 550 °C. The heterojunction effect was studied to elucidate the prevention of short circuiting in the LSCF-BTO cell, considering the Femi level and barrier energy height. This study provides novel ideas for the design of electrolytes for LT-SOFCs from the interface perspective.
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Affiliation(s)
- Hongdong Cai
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China
| | - Dan Zheng
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China
| | - Chen Xia
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China
| | - LeiLei Zhang
- College of Sciences, Liaoning Petrochemical University, Fushun 113001, China
| | - Xunying Wang
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China
| | - Wenjing Dong
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China
| | - Xu Chen
- Hubei Jiufengshan Laboratory, Future Science and Technology City, Wuhan 420000, China.
| | - Hao Wang
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China.
| | - Baoyuan Wang
- School of Microelectronics, Hubei University, Wuhan, Hubei 430062, China.
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7
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Ryu S, Hwang J, Jeong W, Yu W, Lee S, Kim K, Zheng C, Lee YH, Cha SW. A Self-Crystallized Nanofibrous Ni-GDC Anode by Magnetron Sputtering for Low-Temperature Solid Oxide Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11845-11852. [PMID: 36823788 DOI: 10.1021/acsami.2c22795] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The optimum composition ratio of the anode cermet (Ni-GDC) for solid oxide fuel cells (SOFCs) varies because the electron-collecting mechanism is different depending on its applications. A Co-sputtering method facilitates ratio control with sputtering power adjustment. However, there is a practical issue with fabricating anode cermet with various ratios attributed to the large sputtering yield gap of the metal target, Ni, and the ceramic target, gadolinia-doped ceria (GDC). Therefore, in this study, a Gd-Ce metal alloy was applied instead of GDC to match the sputtering rate with that of Ni, which enables a wide ratio range achievement. A thin film of Gd-Ce oxidized after deposition and successfully transformed to crystallized GDC under a SOFC operation environment. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) confirmed its crystallinity, and the film deposited with various power ratios was sputtered on the ScSZ electrolyte pellet to clarify the optimum Ni-GDC ratio for thin-film SOFCs. Last, the Ni-GDC was applied to anodized aluminum oxide (AAO)-supported SOFCs to maximize the performance. The performance change according to the thickness of Ni-GDC was identified, and the best performance among them was 638 mW/cm2 at 500 °C.
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Affiliation(s)
- Sangbong Ryu
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jaewon Hwang
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Wonyeop Jeong
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Wonjong Yu
- Department of Mechanical Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Sanghoon Lee
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Kyunghyun Kim
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Chunhua Zheng
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shenzhen 518055, China
| | - Yoon Ho Lee
- School of Mechanical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea
| | - Suk Won Cha
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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Enhancing the electrocatalytic activity of perovskite electrodes by atomic layer-deposited doped CeO2 for symmetrical solid oxide fuel cells. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Maiti TK, Majhi J, Maiti SK, Singh J, Dixit P, Rohilla T, Ghosh S, Bhushan S, Chattopadhyay S. Zirconia- and ceria-based electrolytes for fuel cell applications: critical advancements toward sustainable and clean energy production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:64489-64512. [PMID: 35864400 DOI: 10.1007/s11356-022-22087-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Solid oxide fuel cells (SOFCs) are emerging as energy conversion devices for large-scale electrical power generation because of their high energy conversion efficiency, excellent ability to minimize air pollution, and high fuel flexibility. In this context, this critical review has focussed on the recent advancements in developing a suitable electrolyte for SOFCs which has been required for the commercialization of SOFC technology after emphasizing the literature from the prior studies. In particular, the significant developments in the field of solid oxide electrolytes for SOFCs, particularly zirconia- and ceria-based electrolytes, have been highlighted as important advancements toward the production of sustainable and clean energy. It has been reported that among various electrolyte materials, zirconia-based electrolytes have the potential to be utilized as the electrolyte in SOFC because of their high thermal stability, non-reducing nature, and high mechanical strength, along with acceptable oxygen ion conductivity. However, some studies have proved that the zirconia-based electrolytes are not suitable for low and intermediate-temperature working conditions because of their poor ionic conductivity to below 850 °C. On the other hand, ceria-based electrolytes are being investigated at a rapid pace as electrolytes for intermediate and low-temperature SOFCs due to their higher oxygen ion conductivity with good electrode compatibility, especially at lower temperatures than stabilized zirconia. In addition, the most emerging advancements in electrolyte materials have demonstrated that the intermediate temperature SOFCs as next-generation energy conversion technology have great potential for innumerable prospective applications.
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Affiliation(s)
- Tushar Kanti Maiti
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Jagannath Majhi
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Subrata Kumar Maiti
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Jitendra Singh
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Prakhar Dixit
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Tushita Rohilla
- Department of Mechanical Engineering, IIT Ropar, Punjab, 140 001, India
| | - Samaresh Ghosh
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Sakchi Bhushan
- Department of Paper Technology, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
| | - Sujay Chattopadhyay
- Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India.
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Lee J, Bang S, Lee W. Sol-Gel Combustion-Assisted Electrostatic Spray Deposition for Durable Solid Oxide Fuel Cell Cathodes. Front Chem 2022; 10:873758. [PMID: 35480392 PMCID: PMC9035593 DOI: 10.3389/fchem.2022.873758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/10/2022] [Indexed: 11/13/2022] Open
Abstract
The chemical instability of perovskite oxides containing Sr is a critical issue for the long-term operation of solid oxide fuel cells. In this study, we demonstrate a remarkable improvement in the chemical and electrochemical stability of a heterostructured La0.6Sr0.4CoO3-δ (LSC)-Ce0.9Gd0.1O1.95 (GDC) electrode. Electrostatic spray deposition was employed to fabricate heterostructured nanoparticles in a single step with a coaxial nozzle supplying the LSC powders in the core nozzle and the GDC precursors in the shell nozzle. Moreover, the reducing fuel added to the GDC precursor solution induced the sol-gel combustion reaction in the droplet to form a uniform nanocrystalline GDC coating with high surface coverage. The high surface coverage of GDC on the LSC more significantly improved long-term stability compared with than of the bare LSC cathode at a constant current density of 1 A/cm2 at 600°C for 100 h.
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Affiliation(s)
- Jongseo Lee
- Advanced Defense Science and Technology Research Institute, Agency for Defense Development, Daejeon, South Korea
| | - Sehee Bang
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Wonyoung Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, South Korea
- *Correspondence: Wonyoung Lee,
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11
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Seo J, Kim S, Jeon S, Kim S, Kim JH, Jung W. Nanoscale interface engineering for solid oxide fuel cells using atomic layer deposition. NANOSCALE ADVANCES 2022; 4:1060-1073. [PMID: 36131774 PMCID: PMC9417260 DOI: 10.1039/d1na00852h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/09/2022] [Indexed: 06/15/2023]
Abstract
Atomic layer deposition (ALD), which is already actively used in the semiconductor industry, has been in the spotlight in various energy fields, such as batteries and fuel cells, given its unique ability to enable the nanoscale deposition of diverse materials with a variety of compositions onto complex 3D structures. In particular, with regard to ceramic fuel cells, ALD has attracted attention because it facilitates the manufacturing of thin and dense electrolytes. Furthermore, recently, electrode surfaces and electrode/electrolyte interface modification are arising as new research strategies to fabricate robust fuel cells. In this mini-review, we present a brief overview of ALD and recent studies that utilize ALD in ceramic fuel cells, such as manufacturing thin film electrolytes, stabilizing electrodes, functionalizing electrodes, and modifying the chemistry of electrode surfaces. We also propose research directions to expand the utility and functionality of the ALD techniques.
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Affiliation(s)
- Jongsu Seo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea
| | - Seunghyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea
| | - SungHyun Jeon
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea
| | - Suyeon Kim
- Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea
| | - Jeong Hwan Kim
- Department of Materials Science and Engineering, Hanbat National University Daejeon Republic of Korea
| | - WooChul Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea
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12
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Liu Q, Ranocchiari M, van Bokhoven JA. Catalyst overcoating engineering towards high-performance electrocatalysis. Chem Soc Rev 2021; 51:188-236. [PMID: 34870651 DOI: 10.1039/d1cs00270h] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clean and sustainable energy needs the development of advanced heterogeneous catalysts as they are of vital importance for electrochemical transformation reactions in renewable energy conversion and storage devices. Advances in nanoscience and material chemistry have afforded great opportunities for the design and optimization of nanostructured electrocatalysts with high efficiency and practical durability. In this review article, we specifically emphasize the synthetic methodologies for the versatile surface overcoating engineering reported to date for optimal electrocatalysts. We discuss the recent progress in the development of surface overcoating-derived electrocatalysts potentially applied in polymer electrolyte fuel cells and water electrolyzers by correlating catalyst intrinsic structures with electrocatalytic properties. Finally, we present the opportunities and perspectives of surface overcoating engineering for the design of advanced (electro)catalysts and their deep exploitation in a broad scope of applications.
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Affiliation(s)
- Qiang Liu
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, 8093 Zurich, Switzerland. .,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Marco Ranocchiari
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Jeroen A van Bokhoven
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, 8093 Zurich, Switzerland. .,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
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Zimou J, Nouneh K, Talbi A, Gana L, El-Habib A, Hsissou R, Addou M. Influence of manganese rate on structural, optical and electrochemical properties of CeO2 thin films deposited by spray pyrolysis: Supercapacitor applications. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Khairy M. A synergetic effect of cerium oxide nanocubes and gold nanoparticles for developing a new photoelectrochemical sensor of codeine drug. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115517] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2019. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213830] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Wang H, Zhang W, Meng J, Pei Y, Qiu X, Meng F, Liu X. Effectively Promoting Activity and Stability of a MnCo 2O 4-Based Cathode by In Situ Constructed Heterointerfaces for Solid Oxide Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24329-24340. [PMID: 33978394 DOI: 10.1021/acsami.1c06757] [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
The development of multiphase composite electrocatalysts plays a key role in achieving the efficient and durable operation of intermediate-temperature solid oxide fuel cells (IT-SOFCs). Herein, a self-assembled nanocomposite is developed as the oxygen reduction reaction (ORR) catalyst for IT-SOFCs through a coprecipitation method. The nanocomposite is composed of a doped (Mn0.6Mg0.4)0.8Sc0.2Co2O4 (MMSCO) spinel oxide (84 wt %), an orthorhombic perovskite phase (11.3 wt %, the spontaneous combination of PrO2 additives and spinel), and a minor Sc2O3 phase (4.7 wt %). The surface of the (Mn0.6Mg0.4)0.8Sc0.2Co2O4 phase is activated by the self-assembled nanocoating with many heterogeneous interfaces. Thence, the ORR kinetics is obviously accelerated and an area-specific resistance (ASR) of ∼0.11 Ω cm2 is obtained at 750 °C. Moreover, a single cell with the cathode shows a peak power density (PPD) of 1144.1 mW cm-2 at 750 °C, much higher than that of the cell with the MnCo2O4 cathode (456.2 mW cm-2). An enhanced stability of ∼120 h (0.8 A cm-2, 750 °C) is also achieved, related to the reduced thermal expansion coefficient (13.9 × 10-6 K-1). The improvement in ORR kinetics and stability can be attributed to the refinement of grains, the formation of heterointerfaces, and the enhancement of mechanical compatibility.
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Affiliation(s)
- Haocong Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Wenwen Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Junling Meng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yongli Pei
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Xin Qiu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Fanzhi Meng
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Xiaojuan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, Anhui, China
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17
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Tian H, Li W, Ma L, Yang T, Guan B, Shi W, Kalapos TL, Liu X. Deconvolution of Water-Splitting on the Triple-Conducting Ruddlesden-Popper-Phase Anode for Protonic Ceramic Electrolysis Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49574-49585. [PMID: 33079527 DOI: 10.1021/acsami.0c12987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Triple-conducting materials have been proved to improve the performance of popular protonic ceramic electrolysis cells. However, partially because of the complexity of the water-splitting reaction involving three charge carriers, that is, oxygen (O2-), proton (H+), and electron (e-), the triple-conducting reaction mechanism was not clear, and the reaction conducting pathways have seldom been addressed. In this study, the triple-conducting Ruddlesden-Popper phase Pr1.75Ba0.25NiO4+δ as an anode on the BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte was fabricated and its electroresponses were characterized by electrochemical impedance spectroscopy with various atmospheres and temperatures. The impedance spectra are deconvoluted by means of the distribution of the relaxation time method. The surface exchange rate and chemical diffusivity of H+ and O2- are characterized by electrical conductivity relaxation. The physical locations of electrochemical processes are also identified by atomic layer deposition with a surface inhibitor. A microkinetics model is proposed toward conductivities, triple-conducting pathways, reactant dependency, surface exchange and bulk diffusion capabilities, and other relevant properties. Finally, the rate-limiting steps and suggestions for further improvement of electrode performance are presented.
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Affiliation(s)
- Hanchen Tian
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Wenyuan Li
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Liang Ma
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
- School of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, China
| | - Tao Yang
- National Energy Technology Laboratory, Morgantown, West Virginia 26505, United States
- Leidos Research Support Team, Morgantown, West Virginia 26507, United States
| | - Bo Guan
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Wangying Shi
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Thomas L Kalapos
- National Energy Technology Laboratory, Morgantown, West Virginia 26505, United States
- Leidos Research Support Team, Morgantown, West Virginia 26507, United States
| | - Xingbo Liu
- Mechanical & Aerospace Engineering Department, Benjamin M. Statler College of Engineering & Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
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