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Altaf A, Sohail M, Altaf M, Nafady A, Sher M, Wahab MA. Enhanced Electrocatalytic Activity of Amorphized LaCoO 3 for Oxygen Evolution Reaction. Chem Asian J 2024; 19:e202300870. [PMID: 37943100 DOI: 10.1002/asia.202300870] [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: 10/04/2023] [Revised: 11/05/2023] [Accepted: 11/05/2023] [Indexed: 11/10/2023]
Abstract
Amorphous inorganic perovskites have attracted significant attention as efficient electrocatalysts due to their unique structural flexibility and good catalytic activity. In particular, the disordered structure and a surface rich in defects such as oxygen vacancies can contribute to the superior electrocatalytic activity of amorphous oxides compared to their crystalline counterpart. In this work, we report the synthesis of LaCoO3, followed by an amorphization process through urea reduction with tailored modifications. The as-synthesized catalysts were thoroughly tested for their performance in oxygen evolution reaction (OER), Remarkably, the amorphous LaCoO3 synthesized at 450 °C (referred to as LCO-4) exhibits excellent OER catalytic activity. At an overpotential of 310 mV, it achieved a current density of 10 mA/cm-2, exceedingly fast to 1 A/cm-2 at an overpotential of only 460 mV. Moreover, LCO-4 exhibited several advantageous features compared to pristine LaCoO3 and LaCoO3 amorphized at other two temperatures (350 °C, LCO-3, and 550 °C, LCO-5). The amorphized LCO-4 catalyst showed a higher electrochemically active surface area, a key factor in boosting catalytic performance. Additionally, LCO-4 demonstrated the lowest Tafel slope of 70 mVdec-1, further highlighting its exceptional OER activity. Furthermore, the long-term stability of LCO-4 is notably superior than pristine LaCoO3 (LCO-P) and the other amorphized samples (LCO-3 and LCO-5). The enhanced catalytic activity of LCO-4 can be attributed to its unique disordered structure, small crystallite size, and higher concentration of oxygen vacancies in the final catalyst.
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Affiliation(s)
- Amna Altaf
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Muhammad Altaf
- Department of Chemistry, Government College University, Lahore, 54000, Pakistan
| | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Muhammad Sher
- Department of Chemistry, Allama Iqbal Open University, H-8, Islamabad, 44000, Pakistan
| | - Md A Wahab
- Energy and Process Engineering Laboratory, School of Mechanical, Medical and Process Engineering, Faculty of Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
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Ran J, Chen P, Quan X, Si M, Gao D. Improving the Oxygen Evolution Reaction Kinetics in Zn-Air Battery by Iodide Oxidation Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402052. [PMID: 38970555 DOI: 10.1002/smll.202402052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/30/2024] [Indexed: 07/08/2024]
Abstract
Zinc-air batteries (ZABs) have garnered considerable attention as a highly promising contender in the field of energy storage and conversion. Nevertheless, their performance is considerably impeded by the proliferation of dendrites on the Zinc anode and the slow kinetics of the redox reaction on the air cathode. Herein, taking Ag30%@LaCoO3 (Ag30%@LCO) heterojunction catalyst as the cathode, it is demonstrated that adding KI additives to the alkaline electrolyte can not only enhance the oxygen electrocatalytic reaction but also inhibit the formation of zinc anode dendrites, thereby achieving a comprehensive improvement in the performance of ZABs. Under the action of the KI additive, the optimized Ag30%@LCO catalyst shows a decreased overpotential from 460 to 220 mV at j = 10 mA cm-2, while the assembled ZAB shows reduced charging potential (1.8 V), and long cycle stability (180 h). Furthermore, the morphology characterization results indicate a reduction in dendrites on the Zn anode. Both experimental and calculated results indicate that the presence of I- as a reaction modifier alters the trajectory of the conventional oxygen evolution reaction, resulting in a more thermodynamically favorable pathway. The introduction of KI additives as electrolytes provides a straightforward approach to developing comprehensively improved ZABs.
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Affiliation(s)
- Jiaqi Ran
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Peng Chen
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
| | - Xiangning Quan
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Mingsu Si
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Daqiang Gao
- Laboratory for Magnetism and Magnetic Materials, Laboratory Lanzhou University, Lanzhou, 730000, China
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3
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Paladugu S, Abdullahi IM, Jothi PR, Jiang B, Nath M, Page K. Tailored (La 0.2Pr 0.2Nd 0.2Tb 0.2Dy 0.2) 2Ce 2O 7 as a Highly Active and Stable Nanocatalyst for the Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305789. [PMID: 38482934 DOI: 10.1002/smll.202305789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/14/2023] [Indexed: 06/07/2024]
Abstract
Designing highly active and robust catalysts for the oxygen evolution reaction is key to improving the overall efficiency of the water splitting reaction. It has been previously demonstrated that evaporation induced self-assembly (EISA) can be used to synthesize highly porous and high surface area cerate-based fluorite nanocatalysts, and that substitution of Ce with 50% rare earth (RE) cations significantly improves electrocatalyst activity. Herein, the defect structure of the best performing nanocatalyst in the series are further explored, Nd2Ce2O7, with a combination of neutron diffraction and neutron pair distribution function analysis. It is found that Nd3 + cation substitution for Ce in the CeO2 fluorite lattice introduces higher levels of oxygen Frenkel defects and induces a partially reduced RE1.5Ce1.5O5 + x phase with oxygen vacancy ordering. Significantly, it is demonstrated that the concentration of oxygen Frenkel defects and improved electrocatalytic activity can be further enhanced by increasing the compositional complexity (number of RE cations involved) in the substitution. The resulting novel compositionally-complex fluorite- (La0.2Pr0.2Nd0.2Tb0.2Dy0.2)2Ce2O7 is shown to display a low OER overpotential of 210 mV at a current density of 10 mAcm-2 in 1M KOH, and excellent cycling stability. It is suggested that increasing the compositional complexity of fluorite nanocatalysts expands the ability to tailor catalyst design.
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Affiliation(s)
- Sreya Paladugu
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | | | | | - Bo Jiang
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Manashi Nath
- Department of Chemistry, Missouri University of Science and Technology, Rolla, MO, 65409, USA
| | - Katharine Page
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
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4
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Ingavale S, Gopalakrishnan M, Enoch CM, Pornrungroj C, Rittiruam M, Praserthdam S, Somwangthanaroj A, Nootong K, Pornprasertsuk R, Kheawhom S. Strategic Design and Insights into Lanthanum and Strontium Perovskite Oxides for Oxygen Reduction and Oxygen Evolution Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308443. [PMID: 38258405 DOI: 10.1002/smll.202308443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/25/2023] [Indexed: 01/24/2024]
Abstract
Perovskite oxides exhibit bifunctional activity for both oxygen reduction (ORR) and oxygen evolution reactions (OER), making them prime candidates for energy conversion in applications like fuel cells and metal-air batteries. Their intrinsic catalytic prowess, combined with low-cost, abundance, and diversity, positions them as compelling alternatives to noble metal and metal oxides catalysts. This review encapsulates the nuances of perovskite oxide structures and synthesis techniques, providing insight into pivotal active sites that underscore their bifunctional behavior. The focus centers on the breakthroughs surrounding lanthanum (La) and strontium (Sr)-based perovskite oxides, specifically their roles in zinc-air batteries (ZABs). An introduction to the mechanisms of ORR and OER is provided. Moreover, the light is shed on strategies and determinants central to optimizing the bifunctional performance of La and Sr-based perovskite oxides.
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Affiliation(s)
- Sagar Ingavale
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Mohan Gopalakrishnan
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Carolin Mercy Enoch
- Department of Chemistry, SRM Institute of Science & Technology, Kattankulathur, Chennai, 603203, India
| | - Chanon Pornrungroj
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Meena Rittiruam
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supareak Praserthdam
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
- Bio-Circular-Green-economy Technology & Engineering Center (BCGeTEC), Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Anongnat Somwangthanaroj
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Bio-Circular-Green-economy Technology & Engineering Center (BCGeTEC), Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kasadit Nootong
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Bio-Circular-Green-economy Technology & Engineering Center (BCGeTEC), Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Rojana Pornprasertsuk
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Niigata, 940-2188, Japan
- Center of Excellence on Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Soorathep Kheawhom
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Bio-Circular-Green-economy Technology & Engineering Center (BCGeTEC), Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence on Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, 10330, Thailand
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Paladugu S, Abdullahi IM, Singh H, Spinuzzi S, Nath M, Page K. Mesoporous RE 0.5Ce 0.5O 2-x Fluorite Electrocatalysts for the Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7014-7025. [PMID: 38308595 DOI: 10.1021/acsami.3c14977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Developing highly active and stable electrocatalysts for the oxygen evolution reaction (OER) is key to improving the efficiency and practical application of various sustainable energy technologies including water electrolysis, CO2 reduction, and metal air batteries. Here, we use evaporation-induced self-assembly (EISA) to synthesize highly porous fluorite nanocatalysts with a high surface area. In this study, we demonstrate that a 50% rare-earth cation substitution for Ce in the CeO2 fluorite lattice improves the OER activity and stability by introducing oxygen vacancies into the host lattice, which results in a decrease in the adsorption energy of the OH* intermediate in the OER. Among the binary fluorite compositions investigated, Nd2Ce2O7 is shown to display the lowest OER overpotential of 243 mV, achieved at a current density of 10 mA cm-2, and excellent cycling stability in an alkaline medium. Importantly, we demonstrate that rare-earth oxide OER electrocatalysts with high activity and stability can be achieved using the EISA synthesis route without the incorporation of transition and noble metals.
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Affiliation(s)
- Sreya Paladugu
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Ibrahim Munkaila Abdullahi
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Harish Singh
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Sam Spinuzzi
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Manashi Nath
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Katharine Page
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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6
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Yu H, Liedienov N, Zatovsky I, Butenko D, Fesych I, Xu W, Song C, Li Q, Liu B, Pashchenko A, Levchenko G. The Multifunctionality of Lanthanum-Strontium Cobaltite Nanopowder: High-Pressure Magnetic Studies and Excellent Electrocatalytic Properties for OER. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3605-3620. [PMID: 38207161 PMCID: PMC10811629 DOI: 10.1021/acsami.3c06413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 12/12/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
Simultaneous study of magnetic and electrocatalytic properties of cobaltites under extreme conditions expands the understanding of physical and chemical processes proceeding in them with the possibility of their further practical application. Therefore, La0.6Sr0.4CoO3 (LSCO) nanopowders were synthesized at different annealing temperatures tann = 850-900 °C, and their multifunctional properties were studied comprehensively. As tann increases, the rhombohedral perovskite structure of the LSCO becomes more single-phase, whereas the average particle size and dispersion grow. Co3+ and Co4+ are the major components. It has been found that LSCO-900 shows two main Curie temperatures, TC1 and TC2, associated with a particle size distribution. As pressure P increases, average ⟨TC1⟩ and ⟨TC2⟩ increase from 253 and 175 K under ambient pressure to 268 and 180 K under P = 0.8 GPa, respectively. The increment of ⟨dTC/dP⟩ for the smaller and bigger particles is sufficiently high and equals 10 and 13 K/GPa, respectively. The magnetocaloric effect in the LSCO-900 nanopowder demonstrates an extremely wide peak δTfwhm > 50 K that can be used as one of the composite components, expanding its working temperature window. Moreover, all LSCO samples showed excellent electrocatalytic performance for the oxygen evolution reaction (OER) process (overpotentials of only 265-285 mV at a current density of 10 mA cm-2) with minimal η10 for LSCO-900. Based on the experimental data, it was concluded that the formation of a dense amorphous layer on the surface of the particles ensures high stability as a catalyst (at least 24 h) during electrolysis in 1 M KOH electrolyte.
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Affiliation(s)
- Hanlin Yu
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
| | - Nikita Liedienov
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
- Donetsk
Institute for Physics and Engineering named after O.O. Galkin, NASU, Kyiv 03028, Ukraine
| | - Igor Zatovsky
- F.D.
Ovcharenko Institute of Biocolloidal Chemistry, NASU, Kyiv 03142, Ukraine
| | - Denys Butenko
- Department
of Physics, Southern University of Science
and Technology, Shenzhen 518055, P.R. China
| | - Igor Fesych
- Taras
Shevchenko National University of Kyiv, Kyiv 01030 , Ukraine
- Institute
of Magnetism NASU and MESU, Kyiv 03142, Ukraine
| | - Wei Xu
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P.R. China
| | - Chunrui Song
- Baicheng
Normal University, Baicheng 137099, China
| | - Quanjun Li
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
| | - Bingbing Liu
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
| | - Aleksey Pashchenko
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
- Donetsk
Institute for Physics and Engineering named after O.O. Galkin, NASU, Kyiv 03028, Ukraine
- Institute
of Magnetism NASU and MESU, Kyiv 03142, Ukraine
| | - Georgiy Levchenko
- State
Key Laboratory of Superhard Materials, International Center of Future
Science, Jilin University, Changchun 130012, P.R. China
- Donetsk
Institute for Physics and Engineering named after O.O. Galkin, NASU, Kyiv 03028, Ukraine
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7
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Mahmoudi E, Asghari E, Delibaş N, Niaei A. Application of response surface methodology for optimization of the test condition of oxygen evolution reaction over La 0.8Ba 0.2CoO 3 perovskite-active carbon composite. Sci Rep 2023; 13:22878. [PMID: 38129452 PMCID: PMC10739840 DOI: 10.1038/s41598-023-49836-1] [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: 07/25/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
The Experimental Design was applied to optimize the electrocatalytic activity of La0.8Ba0.2CoO3 perovskite oxide/Active Carbon composite material in the alkaline solution for the Oxygen Evolution Reaction. After the preparation of La0.8Ba0.2CoO3, and structural characterizations, the experimental design was utilized to determine the optimal amount of the composite material and testing conditions. The overpotential was defined as the response variable, and the mass ratio of perovskite/active carbon, Potassium hydroxide (KOH) concentration, and Poly(vinylidene fluoride) (PVDF) amount were considered effective parameters. The significance of model terms is demonstrated by P-values less than 0.0500. The proposed prediction model determined the optimal amounts of 0.665 mg of PVDF, a KOH concentration of 0.609 M, and A perovskite/Active Carbon mass ratio of 2.81 with 308.22 mV overpotential (2.27% greater than the actual overpotential). The stability test of the optimized electrode material over 24 h suggests that it could be a good candidate electrocatalyst for OER with reusability potential.
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Affiliation(s)
- Elham Mahmoudi
- Department of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran
| | - Elnaz Asghari
- Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Nagihan Delibaş
- Department of Physics, Faculty of Art and Science, Sakarya University, Sakarya, Turkey
| | - Aligholi Niaei
- Department of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran.
- Department of Physics, Faculty of Art and Science, Sakarya University, Sakarya, Turkey.
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8
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Kang Y, Li J, Zhang S, Xiao Y, Lu G, Lei Z. Enhancement of Electrocatalytic Oxygen Reduction Reaction and Oxygen Evolution Reaction by Introducing Lanthanum Species in the Carbon Shell. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55679-55691. [PMID: 37978919 DOI: 10.1021/acsami.3c11773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The development of cost-effective non-noble metal electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) opens up the possibility for sustainable energy systems. Herein, we report a surface overcoating strategy with lanthanum organic complex (La-OC) as the precursor to prepare lanthanum species (La-SPc) encapsulated in nitrogen, fluorine, and sulfur self-doped porous carbon (NFS-PC) composites (La-SPc@NFS-PC) for efficient ORR and OER. The La-SPc is introduced not only as a promoter to increase the electrochemical stability of the La-SPc@NFS-PC catalysts but also to tailor the electronic structure of NFS-PC due to the unique electrochemical properties of La-SPc. In addition, the integration of La-SPc and NFS-PC can improve the electronic conductivity of composites by inducing electron redistribution and lowering the band gap, which is advantageous in enhancing the kinetics of charge transfer. Simultaneously, benefiting from the optimized porous structure and positive cooperation of La-SPc with NFS-PC shells, the obtained La-SPc@NFS-PC-3 delivers robust bifunctional ORR/OER activities and stabilities. More importantly, the Zn-air battery (ZAB) assembled with La-SPc@NFS-PC-3 demonstrates an outstanding power density (181.1 mW cm-2) and long cycling life, outperforming the commercial Pt/C. This work offers a rational approach to preparing high-efficiency rare-earth-based catalysts and provides potential applications in ZABs.
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Affiliation(s)
- Yumao Kang
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jinmei Li
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shengkang Zhang
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yu Xiao
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Gongxuan Lu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ziqiang Lei
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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9
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Fu K, Chen W, Jiang F, Chen X, Liu J. Research Progress of Perovskite-Based Bifunctional Oxygen Electrocatalyst in Alkaline Conditions. Molecules 2023; 28:7114. [PMID: 37894593 PMCID: PMC10608921 DOI: 10.3390/molecules28207114] [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: 09/20/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
In light of the depletion of conventional energy sources, it is imperative to conduct research and development on sustainable alternative energy sources. Currently, electrochemical energy storage and conversion technologies such as fuel cells and metal-air batteries rely heavily on precious metal catalysts like Pt/C and IrO2, which hinders their sustainable commercial development. Therefore, researchers have devoted significant attention to non-precious metal-based catalysts that exhibit high efficiency, low cost, and environmental friendliness. Among them, perovskite oxides possess low-cost and abundant reserves, as well as flexible oxidation valence states and a multi-defect surface. Due to their advantageous structural characteristics and easily adjustable physicochemical properties, extensive research has been conducted on perovskite-based oxides. However, these materials also exhibit drawbacks such as poor intrinsic activity, limited specific surface area, and relatively low apparent catalytic activity compared to precious metal catalysts. To address these limitations, current research is focused on enhancing the physicochemical properties of perovskite-based oxides. The catalytic activity and stability of perovskite-based oxides in Oxygen Reduction Reaction/Oxygen Evolution Reaction (ORR/OER) can be enhanced using crystallographic structure tuning, cationic regulation, anionic regulation, and nano-processing. Furthermore, extensive research has been conducted on the composite processing of perovskite oxides with other materials, which has demonstrated enhanced catalytic performance. Based on these different ORR/OER modification strategies, the future challenges of perovskite-based bifunctional oxygen electrocatalysts are discussed alongside their development prospects.
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Affiliation(s)
- Kailin Fu
- Department of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; (W.C.); (F.J.)
| | - Weijian Chen
- Department of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; (W.C.); (F.J.)
| | - Feng Jiang
- Department of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; (W.C.); (F.J.)
| | - Xia Chen
- Sichuan Volcational College of Cultural Industries, Chengdu 610213, China;
| | - Jianmin Liu
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen 333000, China
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10
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Li SF, Zheng J, Yan D. Cationic Defect Engineering in Perovskite La 2CoMnO 6 for Enhanced Electrocatalytic Oxygen Evolution. Inorg Chem 2023. [PMID: 37384798 DOI: 10.1021/acs.inorgchem.3c00987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
The urgent need to promote the development of sustainable energy conversion requires exploration of highly efficient oxygen evolution reaction (OER) electrocatalysts. Defect engineering is a promising approach to address the inherent low electrical conductivity of metal oxides and limited reaction sites, for use in clean air applications and as electrochemical energy-storage electrocatalysts. In this article, oxygen defects are introduced into La2CoMnO6-δ perovskite oxides through the A-site cation defect strategy. By tuning the content of the A-site cation, oxygen defect concentration and corresponding electrochemical OER performance have been greatly improved. As a result, the defective La1.8CoMnO6-δ (L1.8CMO) catalyst exhibits exceptional OER activity with an overpotential of 350 mV at 10 mA cm-2, approximately 120 mV lower than that of the pristine perovskite. This enhancement can be attributed to the increase in surface oxygen vacancies, optimized eg occupation of transition metal at the B-site, and enlarged Brunauer-Emmett-Teller surface area. The reported strategy facilitates the development of novel defect-mediated perovskites in electrocatalysis.
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Affiliation(s)
- Shu-Fang Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jie Zheng
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
| | - Dong Yan
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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11
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Ran J, Wang L, Si M, Liang X, Gao D. Tailoring Spin State of Perovskite Oxides by Fluorine Atom Doping for Efficient Oxygen Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206367. [PMID: 36541731 DOI: 10.1002/smll.202206367] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Promoting the initially deficient but economical catalysts to high-performing competitors is important for developing superior catalysts. Unlike traditional nano-morphology construction methods, this work focuses on intrinsic catalytic activity enhancement via heteroatom doping strategies to induce lattice distortion and optimize spin-dependent orbital interaction to alter charge transfer between catalysts and reactants. Experimentally, a series of different concentrations of fluorine-doped lanthanum cobaltate (Fx -LaCoO3 ) exhibiting excellent electrocatalytic activity is synthesized, including a low overpotential of 390 mV at j = 10 mA cm-2 for OER and a large half-wave potential of 0.68 V for ORR. Meanwhile, the assembled rechargeable Zn-air batteries deliver an excellent performance with a large specific capacity of 811 mAh/gZn under 10 mA cm-2 and stability of charge/recharge (120 h). Theoretically, taking advantage of density functional theory calculations, it is found that the prominent OER/ORR performance arises from the spin state transition of Co3+ (Low spin state (LS, t2g 6 eg 0 ) → Intermediate spin state (IS, t2g 5 eg 1 ) and the mediated d-band center upshift by F atom incorporation. This work establishes a novel avenue for designing superior electrocatalysts in perovskite-based oxides by regulating spin states.
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Affiliation(s)
- Jiaqi Ran
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, China
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Linchuan Wang
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, China
| | - Mingsu Si
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, Lan Zhou, 730022, China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000, China
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12
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Jeerh G, Zou P, Zhang M, Chen S, Humphreys J, Tao S. Electrooxidation of ammonia on A-site deficient perovskite oxide La0.9Ni0.6Cu0.35Fe0.05O3-δ for wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121451] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Shen W, Jin J, Hu Y, Hou Y, Yin J, Ma Z, Zhao YQ, Xi P. Surface chlorine doped perovskite-type cobaltate lanthanum for water oxidation. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64004-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Xu X, Pan Y, Zhong Y, Shi C, Guan D, Ge L, Hu Z, Chin Y, Lin H, Chen C, Wang H, Jiang SP, Shao Z. New Undisputed Evidence and Strategy for Enhanced Lattice-Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200530. [PMID: 35306740 PMCID: PMC9108636 DOI: 10.1002/advs.202200530] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Oxygen evolution reaction (OER) is a key half-reaction in many electrochemical transformations, and efficient electrocatalysts are critical to improve its kinetics which is typically sluggish due to its multielectron-transfer nature. Perovskite oxides are a popular category of OER catalysts, while their activity remains insufficient under the conventional adsorbate evolution reaction scheme where scaling relations limit activity enhancement. The lattice oxygen-mediated mechanism (LOM) has been recently reported to overcome such scaling relations and boost the OER catalysis over several doped perovskite catalysts. However, direct evidence supporting the LOM participation is still very little because the doping strategy applied would introduce additional active sites that may mask the real reaction mechanism. Herein, a dopant-free, cation deficiency manipulation strategy to tailor the bulk diffusion properties of perovskites without affecting their surface properties is reported, providing a perfect platform for studying the contribution of LOM to OER catalysis. Further optimizing the A-site deficiency achieves a perovskite candidate with excellent intrinsic OER activity, which also demonstrates outstanding performance in rechargeable Zn-air batteries and water electrolyzers. These findings not only corroborate the key role of LOM in OER electrocatalysis, but also provide an effective way for the rational design of better catalyst materials for clean energy technologies.
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Affiliation(s)
- Xiaomin Xu
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM‐MECE)Curtin UniversityPerthWA6102Australia
| | - Yangli Pan
- Centre for Future MaterialsUniversity of Southern QueenslandSpringfield CentralQLD4300Australia
| | - Yijun Zhong
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM‐MECE)Curtin UniversityPerthWA6102Australia
| | - Chenliang Shi
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech UniversityNanjing211800China
| | - Daqin Guan
- Department of Building and Real EstateResearch Institute for Sustainable Urban Development (RISUD) and Research Institute for Smart Energy (RISE)The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong999077China
| | - Lei Ge
- Centre for Future MaterialsUniversity of Southern QueenslandSpringfield CentralQLD4300Australia
- School of Chemical EngineeringThe University of QueenslandBrisbaneQLD4072Australia
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of SolidsNöthnitzer Str. 40Dresden01187Germany
| | - Yi‐Ying Chin
- Department of PhysicsNational Chung Cheng UniversityMin‐HsiungChiayi62102Taiwan
| | - Hong‐Ji Lin
- National Synchrotron Radiation Research CenterHsinchu30076Taiwan
| | - Chien‐Te Chen
- National Synchrotron Radiation Research CenterHsinchu30076Taiwan
| | - Hao Wang
- Centre for Future MaterialsUniversity of Southern QueenslandSpringfield CentralQLD4300Australia
| | - San Ping Jiang
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM‐MECE)Curtin UniversityPerthWA6102Australia
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM‐MECE)Curtin UniversityPerthWA6102Australia
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech UniversityNanjing211800China
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15
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Wang Y, Zhu J, Jiang Y, An T, Huang J, Jiang M, Cao M. Highly graphited carbon-coated FeTiO 3 nanosheets in situ derived from MXene: an efficient bifunctional catalyst for Zn-air batteries. Dalton Trans 2022; 51:5706-5713. [PMID: 35332347 DOI: 10.1039/d2dt00114d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Developing high-efficiency and low-cost catalysts for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is of great significance for the commercialization of rechargeable metal-air batteries. Herein, we demonstrated the construction of graphited carbon-coated FeTiO3 (FeTiO3@C) via in situ annealing Ti3C2Tx nanosheets in a rusted-reactor and its efficient bifunctional activity for rechargeable Zn-air batteries (RZABs). The electron-transport dynamics of FeTiO3@C can be improved by using highly conductive graphited carbon derived from Ti3C2Tx. The FeTiO3@C catalyst annealed at 500 °C exhibits excellent OER and ORR activities. Specifically, FeTiO3@C shows a low overpotential of 323 mV at 10 mA cm-2 and a small Tafel slope of 53 mV dec-1 towards the alkaline OER. During the OER process, FeTiO3@C can be partially converted into highly active iron oxyhydroxide via in situ electrochemical reconstruction, which serves as the active species. After being assembled to RZABs, it shows an open-circuit potential of 1.33 V, a high trip efficiency of 63.4% and long-time cycling stability. This work can provide a new avenue for developing bifunctional electrocatalysts for RZABs used in portable devices.
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Affiliation(s)
- Yingxinjie Wang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Jie Zhu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Yan Jiang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Tianyun An
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Jingbin Huang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Minxia Jiang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Minhua Cao
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
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16
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Mann D, Díez AM, Xu J, Lebedev OI, Kolen’ko YV, Shatruk M. Polar Layered Intermetallic LaCo 2P 2 as a Water Oxidation Electrocatalyst. ACS APPLIED MATERIALS & INTERFACES 2022; 14:14120-14128. [PMID: 35291765 PMCID: PMC9455929 DOI: 10.1021/acsami.1c19858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We investigate LaCo2P2 as an electrocatalytic material for oxygen evolution reaction (OER) under alkaline and acidic conditions. This layered intermetallic material was prepared via Sn-flux high-temperature annealing. The electrocatalytic ink, prepared with the ball-milled LaCo2P2 catalyst at the mass loading of 0.25 mg/cm2, shows OER activity at pH = 14, reaching current densities of 10, 50, and 100 mA/cm2 under the overpotential of 400, 440, and 460 mV, respectively. Remarkably, the electrocatalytic performance remains constant for at least 4 days. Transmission electron microscopy reveals the formation of a catalytically active CoOx shell around the pre-catalyst LaCo2P2 core during the alkaline OER. The core serves as a robust support for the in situ-formed electrocatalytic system. Similar studies under pH = 0 reveal the rapid deterioration of LaCo2P2, with the formation of LaPO4 and amorphous cobalt oxide. This study shows the viability of layered intermetallics as stable OER electrocatalysts, although further developments are required to improve the electrocatalytic performance and increase the stability at lower pH values.
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Affiliation(s)
- Dallas
K. Mann
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 32306, United States
| | - Aida M. Díez
- International
Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Junyuan Xu
- International
Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Oleg I. Lebedev
- Laboratoire
CRISMAT, UMR 6508, CNRS-Ensicaen, Caen 14050, France
| | - Yury V. Kolen’ko
- International
Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Michael Shatruk
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 32306, United States
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17
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Zhang J, Li J, Zhong C, Xi P, Chao D, Gao D. Surface-Electronic-Structure Reconstruction of Perovskite via Double-Cation Gradient Etching for Superior Water Oxidation. NANO LETTERS 2021; 21:8166-8174. [PMID: 34553939 DOI: 10.1021/acs.nanolett.1c02623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Reconstructing the surface-electronic-structure of catalysts for efficient electrocatalytic activity is crucial but still under intense exploration. Herein, we introduce a double-cation gradient etching technique to manipulate the electronic structure of perovskite LaCoO3. With the gradient dissolution of cations, the surface was reconstructed, and the perovskite/spinel heterostructure V-LCO/Co3O4 (V-LCO refers to LaCoO3 with La and Co vacancies) can be realized. Its surface-electronic-structure is effectively regulated due to the heterogeneous interface effect and abundant vacancies, resulting in a significantly enhanced activity for oxygen evolution reaction (OER). The V-LCO/Co3O4 exhibits low electrochemical activation energy and 2 orders of magnitude higher carrier concentrations (1.36 × 1021 cm-3) compared with LCO (6.03 × 1019 cm-3). Density functional theory (DFT) calculation unveils that the directional reconstruction of surface-electronic-structure enables the d-band center of V-LCO/Co3O4 to a moderate position, endowing perfect adsorption strength for oxo groups and thus promoting the electrocatalytic activity.
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Affiliation(s)
- Jingyan Zhang
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou 730000, China
| | - Junfu Li
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou 730000, China
| | - Chenglin Zhong
- College of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
- Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
| | - Pinxian Xi
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and The Research Center of Biomedical Nanotechnology, Lanzhou University, Lanzhou 730000, China
| | - Dongliang Chao
- Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou 730000, China
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18
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Arandiyan H, S Mofarah S, Sorrell CC, Doustkhah E, Sajjadi B, Hao D, Wang Y, Sun H, Ni BJ, Rezaei M, Shao Z, Maschmeyer T. Defect engineering of oxide perovskites for catalysis and energy storage: synthesis of chemistry and materials science. Chem Soc Rev 2021; 50:10116-10211. [PMID: 34542117 DOI: 10.1039/d0cs00639d] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Oxide perovskites have emerged as an important class of materials with important applications in many technological areas, particularly thermocatalysis, electrocatalysis, photocatalysis, and energy storage. However, their implementation faces numerous challenges that are familiar to the chemist and materials scientist. The present work surveys the state-of-the-art by integrating these two viewpoints, focusing on the critical role that defect engineering plays in the design, fabrication, modification, and application of these materials. An extensive review of experimental and simulation studies of the synthesis and performance of oxide perovskites and devices containing these materials is coupled with exposition of the fundamental and applied aspects of defect equilibria. The aim of this approach is to elucidate how these issues can be integrated in order to shed light on the interpretation of the data and what trajectories are suggested by them. This critical examination has revealed a number of areas in which the review can provide a greater understanding. These include considerations of (1) the nature and formation of solid solutions, (2) site filling and stoichiometry, (3) the rationale for the design of defective oxide perovskites, and (4) the complex mechanisms of charge compensation and charge transfer. The review concludes with some proposed strategies to address the challenges in the future development of oxide perovskites and their applications.
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Affiliation(s)
- Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. .,Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia.
| | - Sajjad S Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Charles C Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Esmail Doustkhah
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Baharak Sajjadi
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Derek Hao
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Yuan Wang
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia. .,School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Hongyu Sun
- Department of Micro- and Nanotechnology, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Bing-Jie Ni
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mehran Rezaei
- Catalyst and Nanomaterials Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia. .,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia.
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19
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Liang Y, Ye D, Han N, Liang P, Wang J, Yang G, Zhang C, He X, Chen M, Zhang C. Nanoporous silver-modified LaCoO3-δ perovskite for oxygen reduction reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138908] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Gao L, Cui X, Sewell CD, Li J, Lin Z. Recent advances in activating surface reconstruction for the high-efficiency oxygen evolution reaction. Chem Soc Rev 2021; 50:8428-8469. [PMID: 34259239 DOI: 10.1039/d0cs00962h] [Citation(s) in RCA: 203] [Impact Index Per Article: 67.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A climax in the development of cost-effective and high-efficiency transition metal-based electrocatalysts has been witnessed recently for sustainable energy and related conversion technologies. In this regard, structure-activity relationships based on several descriptors have already been proposed to rationally design electrocatalysts. However, the dynamic reconstruction of the surface structures and compositions of catalysts during electrocatalytic water oxidation, especially during the anodic oxygen evolution reaction (OER), complicate the streamlined prediction of the catalytic activity. With the achievements in operando and in situ techniques, it has been found that electrocatalysts undergo surface reconstruction to form the actual active species in situ accompanied with an increase in their oxidation state during OER in alkaline solution. Accordingly, a thorough understanding of the surface reconstruction process plays a critical role in establishing unambiguous structure-composition-property relationships in pursuit of high-efficiency electrocatalysts. However, several issues still need to be explored before high electrocatalytic activities can be realized, as follows: (1) the identification of initiators and pathways for surface reconstruction, (2) establishing the relationships between structure, composition, and electrocatalytic activity, and (3) the rational manipulation of in situ catalyst surface reconstruction. In this review, the recent progress in the surface reconstruction of transition metal-based OER catalysts including oxides, non-oxides, hydroxides and alloys is summarized, emphasizing the fundamental understanding of reconstruction behavior from the original precatalysts to the actual catalysts based on operando analysis and theoretical calculations. The state-of-the-art strategies to tailor the surface reconstruction such as substituting/doping with metals, introducing anions, incorporating oxygen vacancies, tuning morphologies and exploiting plasmonic/thermal/photothermal effects are then introduced. Notably, comprehensive operando/in situ characterization together with computational calculations are responsible for unveiling the improvement mechanism for OER. By delivering the progress, strategies, insights, techniques, and perspectives, this review will provide a comprehensive understanding of the surface reconstruction in transition metal-based OER catalysts and future guidelines for their rational development.
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Affiliation(s)
- Likun Gao
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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21
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Badreldin A, Abusrafa AE, Abdel-Wahab A. Oxygen-deficient perovskites for oxygen evolution reaction in alkaline media: a review. EMERGENT MATERIALS 2020; 3:567-590. [PMID: 0 DOI: 10.1007/s42247-020-00123-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/03/2020] [Indexed: 05/26/2023]
Abstract
AbstractOxygen vacancies in complex metal oxides and specifically in perovskites are demonstrated to significantly enhance their electrocatalytic activities due to facilitating a degree of control in the material’s intrinsic properties. The reported enhancement in intrinsic OER activity of oxygen-deficient perovskites surfaces has inspired their fabrication via a myriad of schemes. Oxygen vacancies in perovskites are amongst the most favorable anionic or Schottky defects to be induced due to their low formation energies. This review discusses recent efforts for inducing oxygen vacancies in a multitude of perovskites, including facile and environmentally benign synthesis strategies, characterization techniques, and detailed insight into the intrinsic mechanistic modulation of perovskite electrocatalysts. Experimental, analytical, and computational techniques dedicated to the understanding of the improvement of OER activities upon oxygen vacancy induction are summarized in this work. The identification and utilization of intrinsic activity descriptors for the modulation of configurational structure, improvement in bulk charge transport, and favorable inflection of the electronic structure are also discussed. It is our foresight that the approaches, challenges, and prospects discussed herein will aid researchers in rationally designing highly active and stable perovskites that can outperform noble metal-based OER electrocatalysts.
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Infiltrated Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Based Electrodes as Anodes in Solid Oxide Electrolysis Cells. ENERGIES 2020. [DOI: 10.3390/en13143659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the last decades, several works have been carried out on solid oxide fuel cell (SOFC) and solid oxide electrolysis cell (SOEC) technologies, as they are powerful and efficient devices for energy conversion and electrochemical storage. By increasing use of renewable sources, a discontinuous amount of electricity is indeed released, and reliable storage systems represent the key feature in such a future energy scenario. In this context, systems based on reversible solid oxide cells (rSOCs) are gaining increasing attention. An rSOC is an electrochemical device that can operate sequentially between discharging (SOFC mode) and charging (SOEC mode); then, it is essential the electrodes are able to guarantee high catalytic activity, both in oxidation and reduction conditions. Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) has been widely recognized as one of the most promising electrode catalysts for the oxygen reduction reaction (ORR) in SOFC technology because of its astonishing content of oxygen vacancies, even at room temperature. The purpose of this study is the development of BSCF to be used as anode material in electrolysis mode, maintaining enhanced energy and power density. Impregnation with a La0.8Sr0.2MnO3 (LSM) discrete nanolayer is applied to pursue structural stability, resulting in a long lifetime reliability. Impedance spectroscopy measurements under anodic overpotential conditions are run to test BSCF and LSM-BSCF activity as the electrode in oxidation mode. The observed results suggest that BSCF is a very promising candidate as an oxygen electrode in rSOC systems.
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