1
|
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.
Collapse
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
| |
Collapse
|
2
|
Zamudio-García J, Porras-Vázquez JM, Losilla ER, Marrero-López D. Enhancing the Electrochemical Performance in Symmetrical Solid Oxide Cells through Nanoengineered Redox-Stable Electrodes with Exsolved Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2024; 16:555-568. [PMID: 38145419 DOI: 10.1021/acsami.3c13641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
Symmetrical solid oxide cells (SSOCs) have recently gained significant attention for their potential in energy conversion due to their simplified cell configuration, cost-effectiveness, and excellent reversibility. However, previous research efforts have mainly focused on improving the electrode performance of perovskite-type electrodes through different doping strategies, neglecting microstructural optimization. This work presents novel approaches for the nanostructural tailoring of (La0.8Sr0.2)0.95Fe1-xTixO3-δ (LSFTx, x = 0.2 and 0.4) electrodes using a single-step spray-pyrolysis deposition process. By incorporating these electrodes into a Ce0.9Gd0.1O1.95 (CGO) porous backbone or employing a nanocomposite architecture with nanoscale particle size, we achieved significant improvements in the polarization resistance (Rp) compared with traditional screen-printed electrodes. To further boost the fuel oxidation performance, a Ni-doping strategy, coupled with meticulous microstructural optimization, was implemented. The exsolution of Ni nanoparticles under reducing conditions resulted in remarkable Rp values as low as 0.34 and 0.11 Ω cm2 in air and wet H2 at 700 °C, respectively. Moreover, an electrolyte-supported cell with symmetrical electrodes demonstrated a stable maximum power density of 617 mW cm-2 at 800 °C. These findings highlight the importance of combining electrode composition optimization with advanced morphology control in the design of highly efficient and durable SSOCs.
Collapse
Affiliation(s)
- Javier Zamudio-García
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, Building 310, 2800 Kongens, Lyngby, Denmark
- Dpto. de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071 Málaga, Spain
| | - Jose M Porras-Vázquez
- Dpto. de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071 Málaga, Spain
| | - Enrique R Losilla
- Dpto. de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071 Málaga, Spain
| | | |
Collapse
|
3
|
Zheng K, Albrycht M, Chen M, Qi K, Czaja P. Tailoring the Stability of Ti-Doped Sr 2Fe 1.4Ti xMo 0.6-xO 6-δ Electrode Materials for Solid Oxide Fuel Cells. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8268. [PMID: 36431752 PMCID: PMC9698536 DOI: 10.3390/ma15228268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/03/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
In this work, the stability of Sr2(FeMo)O6-δ-type perovskites was tailored by the substitution of Mo with Ti. Redox stable Sr2Fe1.4TixMo0.6-xO6-δ (x = 0.1, 0.2 and 0.3) perovskites were successfully obtained and evaluated as potential electrode materials for SOFCs. The crystal structure as a function of temperature, microstructure, redox stability, and thermal expansion properties in reducing and oxidizing atmospheres, oxygen content change, and transport properties in air and reducing conditions, as well as chemical stability and compatibility towards typical electrolytes have been systematically studied. All Sr2Fe1.4TixMo0.6-xO6-δ compounds exhibit a regular crystal structure with Pm-3m space group, showing excellent stability in oxidizing and reducing conditions. The increase of Ti-doping content in materials increases the thermal expansion coefficient (TEC), oxygen content change, and electrical conductivity in air, while it decreases the conductivity in reducing condition. All three materials are stable and compatible with studied electrolytes. Interestingly, redox stable Sr2Fe1.4Ti0.1Mo0.5O6-δ, possessing 1 μm grain size, low TEC (15.3 × 10-6 K-1), large oxygen content change of 0.72 mol·mol-1 between 30 and 900 °C, satisfactory conductivity of 4.1-7.3 S·cm-1 in 5% H2 at 600-800 °C, and good transport coefficients D and k, could be considered as a potential anode material for SOFCs, and are thus of great interest for further studies.
Collapse
Affiliation(s)
- Kun Zheng
- Department of Hydrogen Energy, Faculty of Energy and Fuels, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
- AGH Centre of Energy, AGH University of Science and Technology, ul. Czarnowiejska 36, 30-054 Krakow, Poland
| | - Maciej Albrycht
- Decentralised Hydrogen–Maciej Albrycht, ul. Wały Dwernickiego 21/23a, lok. 8, 42-200 Częstochowa, Poland
| | - Min Chen
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China
| | - Kezhen Qi
- College of Pharmacy, Dali University, Dali 671000, China
| | - Paweł Czaja
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland
| |
Collapse
|
4
|
Zheng K, Lach J, Zhao H, Huang X, Qi K. Magnesium-Doped Sr 2(Fe,Mo)O 6-δ Double Perovskites with Excellent Redox Stability as Stable Electrode Materials for Symmetrical Solid Oxide Fuel Cells. MEMBRANES 2022; 12:membranes12101006. [PMID: 36295767 PMCID: PMC9611669 DOI: 10.3390/membranes12101006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 05/27/2023]
Abstract
In this work, magnesium-doped Sr2Fe1.2Mg0.2Mo0.6O6-δ and Sr2Fe0.9Mg0.4Mo0.7O6-δ double perovskites with excellent redox stability have been successfully obtained. The physicochemical properties including: crystal structure properties, redox stability, thermal expansion properties in oxidizing and reducing conditions, oxygen content as a function of temperature and transport properties, as well as the chemical compatibility with typical electrolytes have been systematically investigated. The in situ oxidation of reduced samples using high-temperature XRD studies shows the crystal structure of materials stable at up to a high-temperature range. The in situ reduction and oxidation of sinters with dilatometer measurements prove the excellent redox stability of materials, with the thermal expansion coefficients measured comparable with electrolytes. The oxygen nonstoichiometry δ of compounds was determined and recorded in air and argon up to 900 °C. Sr2Fe1.2Mg0.2Mo0.6O6-δ oxide presents satisfactory values of electrical conductivity in air (56.2 S·cm-1 at 600 °C) and reducing conditions (10.3 S·cm-1 at 800 °C), relatively high coefficients D and k, and good ionic conductivity (cal. 0.005 S·cm-1 at 800 °C). The stability studies show that both compounds are compatible with Ce0.8Gd0.2O1.9 but react with the La0.8Sr0.2Ga0.8Mg0.2O3-d electrolyte. Therefore, the magnesium-doped double perovskites with excellent redox stability can be potentially qualified as electrode materials for symmetrical SOFCs and are of great interest for further investigations.
Collapse
Affiliation(s)
- Kun Zheng
- Department of Hydrogen Energy, Faculty of Energy and Fuels, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
- AGH Centre of Energy, AGH University of Science and Technology, ul. Czarnowiejska 36, 30-054 Krakow, Poland
| | - Jakub Lach
- Department of Hydrogen Energy, Faculty of Energy and Fuels, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Hailei Zhao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Key Lab of New Energy Materials and Technology, Beijing 100083, China
| | - Xiubing Huang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kezhen Qi
- College of Pharmacy, Dali University, Dali 671000, China
| |
Collapse
|
5
|
Markov AA, Nikitin SS, Merkulov OV, Patrakeev MV. Exploring the defect equilibrium and charge transport in electrode material La 0.5Sr 0.5Fe 0.9Mo 0.1O 3-δ. Phys Chem Chem Phys 2022; 24:21892-21903. [PMID: 36065881 DOI: 10.1039/d2cp02875a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perovskite-type La0.5Sr0.5Fe0.9Mo0.1O3-δ synthesized via glycine nitrate combustion and sintered at 1350 °C was found to have an orthorhombic lattice, which transforms upon heating into a rhombohedral and then a cubic one. The oxygen content and electrical conductivity in this oxide were measured in the range of oxygen partial pressures from 10-20 to 0.5 atm at 750-950 °C by coulometric titration and four-probe dc techniques, respectively. The oxygen content data were used to model the defect equilibrium in the oxide. Oxidation, charge disproportionation and electron exchange reactions between iron and molybdenum were assumed by the model to be involved in the formation of defects. The experimental data were well approximated with the model and the concentrations of charge carriers in La0.5Sr0.5Fe0.9Mo0.1O3-δ were determined to be used for the electrical conductivity analysis. The average mobility of oxygen ions and n- and p-type charge carriers was determined to be about 10-5, 0.007, and 0.07 cm2 V-1 s-1 with an activation energy of 0.80 ± 0.02, 0.34 ± 0.01, and 0.23 ± 0.01 eV, respectively. Comparison with La0.5Sr0.5FeO3-δ shows that 10% Mo substitution provides a substantial increase in both the concentration and mobility of n-type carriers, which results in an almost threefold increase in electron conductivity under reducing conditions, while maintaining a high level of ionic conductivity.
Collapse
Affiliation(s)
- A A Markov
- Institute of Solid State Chemistry, UB RAS, 620990 Ekaterinburg, Russia.
| | - S S Nikitin
- Osipyan Institute of Solid State Physics RAS, 142432 Chernogolovka, Moscow District, Russia.,Institute of Solid State Chemistry and Mechanochemistry, SB RAS, 630128 Novosibirsk, Russia
| | - O V Merkulov
- Institute of Solid State Chemistry, UB RAS, 620990 Ekaterinburg, Russia.
| | - M V Patrakeev
- Institute of Solid State Chemistry, UB RAS, 620990 Ekaterinburg, Russia. .,Osipyan Institute of Solid State Physics RAS, 142432 Chernogolovka, Moscow District, Russia
| |
Collapse
|
6
|
Nanoengineering electrode for yttria-stabilized zirconia-based symmetrical solid oxide fuel cells to achieve superior output performance. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
7
|
Yi W, Tian Y, Lu C, Wang B, Liu Y, Gao S, Niu B. Highly active and stable BaCo0.8Zr0.1Y0.1O3-δ cathode for intermediate temperature solid oxide fuel cells. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.01.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
8
|
Jin X, Gao C, Liu Z, Dong W, Xia C, Wang B, Wang H, Wang X. LSCF–WO 3 semiconductor composite electrolytes for low-temperature solid oxide fuel cells †. RSC Adv 2022; 12:30557-30563. [PMID: 36337978 PMCID: PMC9597290 DOI: 10.1039/d2ra05665h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022] Open
Abstract
The La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF)–WO3 semiconductor composite was applied as an electrolyte for low-temperature solid oxide fuel cells (LTSOFCs). The study results revealed that the fuel cell could output a maximum power density (Pmax) of 812 mW cm−2 when the weight ratio of LSCF to WO3 was 8 : 2 (8LSCF–2WO3), and its open-circuit voltage (OCV) was higher than 1.0 V. This indicated that there was no short circuit problem in this fuel cell device and 80 wt% LSCF existed in the electrolyte layer. This was mainly due to the suppressed electronic conductivity and increased ionic conductivity of the composite as compared with LSCF due to the introduction of the WO3 wide band semiconductor. The oxygen ionic conductivity of the 8LSCF–2WO3 electrolyte was 0.337 S cm−1, which is much higher than that of the pure LSCF material. According to the XPS analysis results, a higher oxygen vacancy content at the heterointerface between LSCF and WO3 contributed to the increased ionic conductivity. SOFC with 8LSCF–2WO3 electrolyte exhibited an excellent power density (Pmax) of 812 mW cm−2 at 550 °C due to the increased ionic conductivity and decreased activation energy.![]()
Collapse
Affiliation(s)
- Xiaoqian Jin
- School of Microelectronics, Hubei UniversityWuhan 430062China
| | - Cui Gao
- School of Microelectronics, Hubei UniversityWuhan 430062China
| | - Zhi Liu
- School of Microelectronics, Hubei UniversityWuhan 430062China
| | - Wenjing Dong
- School of Microelectronics, Hubei UniversityWuhan 430062China,Hubei Yangtze Memory LaboratoriesWuhan 430205China
| | - Chen Xia
- School of Microelectronics, Hubei UniversityWuhan 430062China
| | - Baoyuan Wang
- School of Microelectronics, Hubei UniversityWuhan 430062China,Hubei Yangtze Memory LaboratoriesWuhan 430205China
| | - Hao Wang
- School of Microelectronics, Hubei UniversityWuhan 430062China,Hubei Yangtze Memory LaboratoriesWuhan 430205China
| | - Xunying Wang
- School of Microelectronics, Hubei UniversityWuhan 430062China,Hubei Yangtze Memory LaboratoriesWuhan 430205China
| |
Collapse
|
9
|
Kim H, Lim C, Kwon O, Oh J, Curnan MT, Jeong HY, Choi S, Han JW, Kim G. Unveiling the key factor for the phase reconstruction and exsolved metallic particle distribution in perovskites. Nat Commun 2021; 12:6814. [PMID: 34819509 PMCID: PMC8613209 DOI: 10.1038/s41467-021-26739-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 10/01/2021] [Indexed: 11/09/2022] Open
Abstract
To significantly increase the amount of exsolved particles, the complete phase reconstruction from simple perovskite to Ruddlesden-Popper (R-P) perovskite is greatly desirable. However, a comprehensive understanding of key parameters affecting the phase reconstruction to R-P perovskite is still unexplored. Herein, we propose the Gibbs free energy for oxygen vacancy formation in Pr0.5(Ba/Sr)0.5TO3-δ (T = Mn, Fe, Co, and Ni) as the important factor in determining the type of phase reconstruction. Furthermore, using in-situ temperature & environment-controlled X-ray diffraction measurements, we report the phase diagram and optimum 'x' range required for the complete phase reconstruction to R-P perovskite in Pr0.5Ba0.5-xSrxFeO3-δ system. Among the Pr0.5Ba0.5-xSrxFeO3-δ, (Pr0.5Ba0.2Sr0.3)2FeO4+δ - Fe metal demonstrates the smallest size of exsolved Fe metal particles when the phase reconstruction occurs under reducing condition. The exsolved nano-Fe metal particles exhibit high particle density and are well-distributed on the perovskite surface, showing great catalytic activity in fuel cell and syngas production.
Collapse
Affiliation(s)
- Hyunmin Kim
- grid.42687.3f0000 0004 0381 814XSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Chaesung Lim
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Ohhun Kwon
- grid.25879.310000 0004 1936 8972Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Jinkyung Oh
- grid.42687.3f0000 0004 0381 814XSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Matthew T. Curnan
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Hu Young Jeong
- grid.42687.3f0000 0004 0381 814XDepartment of Materials Science and Engineering and UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Sihyuk Choi
- Department of Mechanical Engineering (Aeronautics, Mechanical and Electronic Convergence Engineering), Kumoh National Institute of Technology, Gyeongbuk, 39177, Republic of Korea.
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Guntae Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
| |
Collapse
|
10
|
Cerium and ruthenium co-doped La0.7Sr0.3FeO3– as a high-efficiency electrode for symmetrical solid oxide fuel cell. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
11
|
In situ growth of LaSr(Fe,Mo)O4 ceramic anodes with exsolved Fe–Ni nanoparticles for SOFCs: Electrochemical performance and stability in H2, CO, and syngas. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2021.03.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
High-Efficiency of Bi-Functional-Based Perovskite Nanocomposite for Oxygen Evolution and Oxygen Reduction Reaction: An Overview. MATERIALS 2021; 14:ma14112976. [PMID: 34072851 PMCID: PMC8198805 DOI: 10.3390/ma14112976] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 01/12/2023]
Abstract
High efficient, low-cost and environmentally friendly-natured bi-functional-based perovskite electrode catalysts (BFPEC) are receiving increasing attention for oxygen reduction/oxygen evolution reaction (ORR/OER), playing an important role in the electrochemical energy conversion process using fuel cells and rechargeable batteries. Herein, we highlighted the different kinds of synthesis routes, morphological studies and electrode catalysts with A-site and B-site substitution co-substitution, generating oxygen vacancies studies for boosting ORR and OER activities. However, perovskite is a novel type of oxide family, which shows the state-of-art electrocatalytic performances in energy storage device applications. In this review article, we go through different types of BFPECs that have received massive appreciation and various strategies to promote their electrocatalytic activities (ORR/OER). Based on these various properties and their applications of BFPEC for ORR/OER, the general mechanism, catalytic performance and future outlook of these electrode catalysts have also been discussed.
Collapse
|
13
|
Bamburov A, Politov B. Nd doping as a promising method to improve transport properties of SrFe(Mo)O3-δ materials for symmetrical fuel cells and hydrogen production membranes. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
14
|
Hou Y, Wang Y, Wang L, Zhang Q, Chou KC. Electrochemical properties of La 0.5Sr 0.5Fe 0.95Mo 0.05O 3−δ as cathode materials for IT-SOEC. RSC Adv 2021; 11:32077-32084. [PMID: 35495512 PMCID: PMC9041719 DOI: 10.1039/d1ra06197f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/22/2021] [Indexed: 11/26/2022] Open
Abstract
Solid oxide electrolysis cells (SOECs) are a new type of high-efficiency energy conversion device that can electrolyze CO2 efficiently and convert electricity into chemical energy. However, the lack of efficient and stable cathodes hinders the practical application of CO2 electrolysis in SOECs. Herein, a novel perovskite oxide La0.5Sr0.5Fe0.95Mo0.05O3−δ (LSFMo) is synthesized and used as a cathode for SOECs. The introduction of Mo significantly improves the CO2 tolerance of the material in a reducing atmosphere and solves the problem of SrCO3 generation in the La0.5Sr0.5FeO3−δ material. Mo ion doping promotes the conductivity in a reducing atmosphere and increases the oxygen deficiencies of the material, which lowers the ohmic resistance (Rs) of the material and significantly improves the CO2 adsorption and dissociation in the middle-frequency of polarization resistance (Rp). For example, Rp decreases from 0.49 to 0.24 Ω cm2 at 800 °C under 1.2 V. Further, the reduction of Rs and Rp increases the performance improvement, and the current density is increased from 1.56 to 2.13 A cm−2 at 800 °C under 2 V. Furthermore, LSFMo shows reasonable short-term stability during the 60 h stability test. Mo doping solves the SrCO3 generation of LSF as SOEC cathode and increases the oxygen deficiencies of the material, which make LSFMo possess higher electrolytic performance.![]()
Collapse
Affiliation(s)
- Yunting Hou
- Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yadun Wang
- Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lijun Wang
- Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qifei Zhang
- Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Kuo-chih Chou
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China
| |
Collapse
|
15
|
Kim H, Joo S, Kwon O, Choi S, Kim G. Cobalt‐Free Pr
0.5
Ba
0.4
Sr
0.1
FeO
3–
δ
as a Highly Efficient Cathode for Commercial YSZ‐Supported Solid Oxide Fuel Cell. ChemElectroChem 2020. [DOI: 10.1002/celc.202001240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hyunmin Kim
- School of Energy and Chemical Engineering, UNIST Ulsan 44919 (Republic of Korea
| | - Sangwook Joo
- School of Energy and Chemical Engineering, UNIST Ulsan 44919 (Republic of Korea
| | - Ohhun Kwon
- Department of Chemical and Biomolecular Engineering University of Pennsylvania 15 Philadelphia Pennsylvania 19104 United States of America
| | - Sihyuk Choi
- Department of Mechanical Engineering Kumoh National Institute of Technology Gyeongbuk 39177 (Republic of Korea
- Department of Aeronautics, Mechanical and Electronic Convergence Engineering Kumoh National Institute of Technology Gyeongbuk 39177 (Republic of Korea
| | - Guntae Kim
- School of Energy and Chemical Engineering, UNIST Ulsan 44919 (Republic of Korea
| |
Collapse
|
16
|
Lu C, Niu B, Yi W, Ji Y, Xu B. Efficient symmetrical electrodes of PrBaFe2-Co O5+δ (x=0, 0.2,0.4) for solid oxide fuel cells and solid oxide electrolysis cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136916] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
17
|
Novel structured Sm0.5Sr0.5CoO3-δ cathode for intermediate and low temperature solid oxide fuel cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|