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Liu LB, Yi C, Mi HC, Zhang SL, Fu XZ, Luo JL, Liu S. Perovskite Oxides Toward Oxygen Evolution Reaction: Intellectual Design Strategies, Properties and Perspectives. ELECTROCHEM ENERGY R 2024; 7:14. [PMID: 38586610 PMCID: PMC10995061 DOI: 10.1007/s41918-023-00209-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/15/2023] [Accepted: 12/03/2023] [Indexed: 04/09/2024]
Abstract
Developing electrochemical energy storage and conversion devices (e.g., water splitting, regenerative fuel cells and rechargeable metal-air batteries) driven by intermittent renewable energy sources holds a great potential to facilitate global energy transition and alleviate the associated environmental issues. However, the involved kinetically sluggish oxygen evolution reaction (OER) severely limits the entire reaction efficiency, thus designing high-performance materials toward efficient OER is of prime significance to remove this obstacle. Among various materials, cost-effective perovskite oxides have drawn particular attention due to their desirable catalytic activity, excellent stability and large reserves. To date, substantial efforts have been dedicated with varying degrees of success to promoting OER on perovskite oxides, which have generated multiple reviews from various perspectives, e.g., electronic structure modulation and heteroatom doping and various applications. Nonetheless, the reviews that comprehensively and systematically focus on the latest intellectual design strategies of perovskite oxides toward efficient OER are quite limited. To bridge the gap, this review thus emphatically concentrates on this very topic with broader coverages, more comparative discussions and deeper insights into the synthetic modulation, doping, surface engineering, structure mutation and hybrids. More specifically, this review elucidates, in details, the underlying causality between the being-tuned physiochemical properties [e.g., electronic structure, metal-oxygen (M-O) bonding configuration, adsorption capacity of oxygenated species and electrical conductivity] of the intellectually designed perovskite oxides and the resulting OER performances, coupled with perspectives and potential challenges on future research. It is our sincere hope for this review to provide the scientific community with more insights for developing advanced perovskite oxides with high OER catalytic efficiency and further stimulate more exciting applications. Graphical Abstract
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Affiliation(s)
- Lin-Bo Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083 Hunan China
| | - Chenxing Yi
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083 Hunan China
| | - Hong-Cheng Mi
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083 Hunan China
| | - Song Lin Zhang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634 Singapore
| | - Xian-Zhu Fu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518000 China
| | - Jing-Li Luo
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518000 China
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9 Canada
| | - Subiao Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083 Hunan China
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Gao X, Liu H, Wang Y, Guo J, Sun X, Sun W, Zhao H, Bai J, Li C. Tailoring the d-band electronic structure of deficient LaMn 0.3Co 0.7O 3-δ perovskite nanofibers for boosting oxygen electrocatalysis in Zn-Air batteries. J Colloid Interface Sci 2023; 650:951-960. [PMID: 37453319 DOI: 10.1016/j.jcis.2023.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/24/2023] [Accepted: 07/02/2023] [Indexed: 07/18/2023]
Abstract
The development and design of efficient bifunctional electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are crucial for rechargeable Zinc-air batteries (ZABs). Optimizing the d-band structure of active metal center in perovskite oxides is an effective method to enhance ORR/OER activity by accelerating the rate-determining step. Herein, we report a deficient method to optimize the d-band structure of Co ions in LaMn0.3Co0.7O3-δ (LMCO-2) perovskite nanofibers, which regulates the mutual effect between B-site Co ions and reactive oxygen intermediates. It is proved by experiment and theoretical calculation that the d-band center (Md) of transition metal ions in LMCO-2 is moved up and the electron filling number of eg orbital in B site is 1.01, thus leading to the reduction of Gibbs free energy required for ORR rate-determining step (OH*→H2O*) to 0.22 eV and promoting reaction proceeds. In this manner, LMCO-2 showed good bifunctional oxygen electrocatalytic activity, with a half-wave potential of 0.71 V vs. RHE. Furthermore, the high specific capacity of 811.54 mAh g-1 and power density of 326.56 mW cm-2 were obtained by using LMCO-2 as the cathode catalyst for ZABs. This study proved the feasibility of d-band structure regulation to enhance the electrocatalytic activity of perovskite oxides.
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Affiliation(s)
- XinYu Gao
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China
| | - Huan Liu
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China.
| | - Yong Wang
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China
| | - JiaHui Guo
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China
| | - XingWei Sun
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China
| | - WeiYan Sun
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China
| | - Haitao Zhao
- ShenZhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Jie Bai
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China.
| | - ChunPing Li
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, PR China; Inner Mongolia Key Laboratory of Industrial Catalysis, Hohhot 010051, PR China.
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Sewify GH, Shawky A. Solvothermal-based synthesis of barium stannate nanosheets coupled with copper manganate nanoparticles for efficient photooxidation of tetracycline under visible light. J Colloid Interface Sci 2023; 648:348-356. [PMID: 37301159 DOI: 10.1016/j.jcis.2023.05.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
Photocatalytic oxidation of antibiotic waste over semiconducting heterojunction photocatalysts is considered eco-friendly because it is simple and operates under light irradiation. In this work, we apply a solvothermal-based process for obtaining high surface area barium stannate (BaSnO3) nanosheets followed by adding 3.0-12.0 wt% of spinel copper manganate (CuMn2O4) nanoparticles to form n-n CuMn2O4/BaSnO3 heterojunction photocatalyst after calcination process. The CuMn2O4-supported BaSnO3 nanosheets exhibit mesostructure surfaces with a high surface area range of 133-150 m2g-1. Moreover, introducing CuMn2O4 to BaSnO3 shows a significant broadening in visible light absorption range due to bandgap reduction down to 2.78 eV in 9.0% CuMn2O4/BaSnO3 compared to 3.0 eV for pure BaSnO3. The produced CuMn2O4/BaSnO3 is used for photooxidation of tetracycline (TC) in water as emerging antibiotic waste under visible light. The photooxidation of TC exhibits the first-order reaction model. The specific dose of 9.0 wt% CuMn2O4/BaSnO3 at 2.4 gL-1 displays the highest-performed and recyclable photocatalyst for total oxidation of TC after 90 min. This sustainable photoactivity is attributed to the improved light harvesting and charges migration upon coupling between CuMn2O4 and BaSnO3.
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Affiliation(s)
- Gamal Hassan Sewify
- Deanship of Scientific Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Ahmed Shawky
- Nanomaterials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87 Helwan, 11421 Cairo, Egypt.
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Cheng C, Zhang Y, Chen H, Zhang Y, Chen X, Lu M. Reduced graphene oxide-wrapped La 0·8Sr 0·2MnO 3 microspheres sensing electrode for highly sensitive nitrite detection. Talanta 2023; 260:124644. [PMID: 37182290 DOI: 10.1016/j.talanta.2023.124644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
An electrochemical nitrite sensor based on perovskite oxides La0·8Sr0·2MnO3 (LSM) microspheres-decorated reduced graphene oxide (rGO) composite was presented to take the merit of the excellent electrocatalytic activity of the LSM and the large surface area of rGO. The content of rGO has been finely adjusted and the electrochemical sensor employing 15 wt% rGO has shown an ultralow nitrite detection limit of 0.016 μM and a high sensitivity of 0.041 μA μM-1 cm-2 and 0.039 μA μM-1 cm-2 in the range of 2-100 and 100-5000 μM, respectively. In addition, the proposed electrode shows good selectivity, reproducibility and stability, suitable for detection of nitrite at various pH values. The sensor was used to determine the nitrite level in environmental water samples with acceptable relative error, demonstrating its feasibility for practical environmental monitoring.
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Affiliation(s)
- Chu Cheng
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Yixin Zhang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Hongyu Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Yulong Zhang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Xinyi Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China.
| | - Miao Lu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China.
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He J, Xu X, Li M, Zhou S, Zhou W. Recent advances in perovskite oxides for non-enzymatic electrochemical sensors: A review. Anal Chim Acta 2023; 1251:341007. [PMID: 36925293 DOI: 10.1016/j.aca.2023.341007] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/05/2023]
Abstract
Non-enzymatic electrochemical sensors with significant advantages of high sensitivity, long-term stability, and excellent reproducibility, are one promising technology to solve many challenges, such as the detection of toxic substances and viruses. Among various materials, perovskite oxides have become a promising candidate for use in non-enzymatic electrochemical sensors because of their low cost, flexible structure, and high intrinsic catalytic activity. A comprehensive overview of the recent advances in perovskite oxides for non-enzymatic electrochemical sensors is provided, which includes the synthesis methods of nanostructured perovskites and the electrocatalytic mechanisms of perovskite catalysts. The better sensing performance of perovskite oxides is mainly due to the lattice O vacancies and superoxide oxygen ions (O22-/O-), which are generated by the transfer of lattice oxygen to adsorbed -OH and have performed excellent properties suitable for electrooxidation of analytes. However, the limited electron transfer kinetics, stability, and selectivity of perovskite oxides alone make perovskite oxides far from ready for scientific development. Therefore, composites of perovskite oxides with other materials like graphitic carbon, metals, metal compounds, conducting organics, and biomolecules are summarized. Furthermore, a brief section describing the future challenges and the corresponding recommendation is presented in this review.
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Affiliation(s)
- Juan He
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, No.111 West Changjiang Road, Huaian, 223300, Jiangsu Province, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, PR China.
| | - Xiaomin Xu
- WA School of Mines: Minerals, Energy and Chemical Engineering (WASM-MECE), Curtin University, Perth, WA, 6102, Australia.
| | - Meisheng Li
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, No.111 West Changjiang Road, Huaian, 223300, Jiangsu Province, PR China.
| | - Shouyong Zhou
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, No.111 West Changjiang Road, Huaian, 223300, Jiangsu Province, PR China.
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, PR China.
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Valizadeh S, Khani Y, Farooq A, Kumar G, Show PL, Chen WH, Lee SH, Park YK. Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation. Bioresour Technol 2023; 372:128638. [PMID: 36669624 DOI: 10.1016/j.biortech.2023.128638] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/12/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Steam gasification of microalgae upon perovskite oxide-supported nickel (Ni) catalysts was carried out for H2-rich gas production. Ni-perovskite oxide catalysts with partial substitution of B in perovskite structures (Ni/CaZrO3, Ni/Ca(Zr0.8Ti0.2)O3, and Ni/Ca(Zr0.6Ti0.4)O3) were synthesized and compared with those of the Ni/Al2O3 catalyst. The perovskite oxide supports improved Ni dispersion by reducing the particle size and strengthening the Ni-support interaction. Higher gas yields and H2 selectivity were obtained using Ni-perovskite oxide catalysts rather than Ni/Al2O3. In particular, Ni/Ca(Zr0.8Ti0.2)O3 showed the highest activity and selectivity for H2 production because of the synergetic effect of metallic Ni and elements present in the perovskite structures caused by high catalytic activity coupled with enhanced oxygen mobility. Moreover, increasing the temperature promoted the yield of gas and H2 content. Overall, considering the outstanding advantages of perovskite oxides as supports for Ni catalysts is a promising prospect for H2 production via gasification technology.
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Affiliation(s)
- Soheil Valizadeh
- School of Environmental Engineering, University of Seoul, Republic of Korea
| | - Yasin Khani
- School of Environmental Engineering, University of Seoul, Republic of Korea
| | - Abid Farooq
- School of Environmental Engineering, University of Seoul, Republic of Korea
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, Shakhbout Bin Sultan St, Zone 1, Abu Dhabi, United Arab Emirates; Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
| | - See Hoon Lee
- Department of Mineral Resources and Energy Engineering, Jeonbuk National University, 54896 Jeonju, Republic of Korea; Department of Environment and Energy, Jeonbuk National University, 567 Jeonju, Republic of Korea
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Republic of Korea.
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7
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Shawky A, Tashkandi NY. Visible-light photooxidation of ciprofloxacin utilizing metal oxide incorporated sol-gel processed La-doped NaTaO 3 nanoparticles: A comparative study. Environ Res 2022; 213:113718. [PMID: 35750127 DOI: 10.1016/j.envres.2022.113718] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/20/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
The supper dissemination of antibiotic waste in water resources has exponentially progressed the vital water and soil pollution that affect human health and the environment. Consequently, there have been several types of research anticipated for the green mineralization of such pollutants. Herein, we intended a surfactant-aided sol-gel formation of lanthanum-doped sodium tantalate (LNTO) nanocrystals. The synthesized 13 nm averaged-size perovskite LNTO nanocrystals were responsive to visible-light irradiation by incorporation of 4.4-5.2 nm oxide nanoparticles, namely Bi2O3, CdO, Fe2O3, and CuO at 4.0 wt% through coprecipitation. The formed nanomaterials unveiled mesostructured surface textures with specific surface areas of 199-229 m2 g-1. The obtained nanoceramics were employed for the mineralization of 10 ppm of ciprofloxacin antibiotic (CPF) as an emerging antibiotic waste in water under visible light irradiation. The CuO-incorporated LNTO exhibited the best photocatalytic oxidation of CPF after 120 min compared with other oxides with an excellent photoreaction rate of 0.0343 min-1 which is 49 times higher than the pure LNTO. The 2.0 gL-1 CuO/LNTO-dose achieved the full photooxidation of CPF at an oxidation speed of 0.0738 min -1 within just 1.0 h of visible light irradiation and magnificent regeneration ability. This enhanced activity of CuO/LNTO is regarded as significant light absorption and a bandgap energy reduction to 2.12 eV. Besides that, the heterojunction between CuO and LNTO amended the photogenerated carrier mobility and separation as concluded from the photoluminescence and photocurrent exploration. This comparative work suggests the proper design of low bandgap oxide decoration of solution-based perovskite oxide photocatalysts for promoting the visible-light mineralization of antibiotics in water.
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Affiliation(s)
- Ahmed Shawky
- Nanomaterials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87, Helwan, 11421, Cairo, Egypt.
| | - Nada Y Tashkandi
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80200, Jeddah, 21589, Saudi Arabia
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Mahmoudi F, Saravanakumar K, Maheskumar V, Njaramba LK, Yoon Y, Park CM. Application of perovskite oxides and their composites for degrading organic pollutants from wastewater using advanced oxidation processes: Review of the recent progress. J Hazard Mater 2022; 436:129074. [PMID: 35567810 DOI: 10.1016/j.jhazmat.2022.129074] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
In the recent years, perovskite oxides are gaining an increasing amount of attention owing to their unique traits such as tunable electronic structures, flexible composition, and eco-friendly properties. In contrast, their catalytic performance is not satisfactory, which hinders real wastewater remediation. To overcome this shortcoming, various strategies are developed to design new perovskite oxide-based materials to enhance their catalytic activities in advanced oxidation process (AOPs). This review article is to provide overview of basic principle and different methods of AOPs, while the strategies to design novel perovskite oxide-based composites for enhancing the catalytic activities in AOPs have been highlighted. Moreover, the recent progress of their synthesis and applications in wastewater remediation (pertaining to the period 2016-2022) was described, and the related mechanisms were thoroughly discussed. This review article helps scientists to have a clear outlook on the selection and design of new effective perovskite oxide-based materials for the application of AOPs. At the end of the review, perspective on the challenges and future research directions are discussed.
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Affiliation(s)
- Farzaneh Mahmoudi
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Karunamoorthy Saravanakumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Velusamy Maheskumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Lewis Kamande Njaramba
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA.
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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Li Z, Wang X, Li X, Zeng M, Redshaw C, Cao R, Sarangi R, Hou C, Chen Z, Zhang W, Wang N, Wu X, Zhu Y, Wu YA. Engineering surface segregation of perovskite oxide through wet exsolution for CO catalytic oxidation. J Hazard Mater 2022; 436:129110. [PMID: 35739693 DOI: 10.1016/j.jhazmat.2022.129110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/22/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Cation segregation occurring near the surface or interfaces of solid catalysts plays an important role in catalytic reactions. Unfortunately, the native surface of perovskite oxides is dominated by passivated A-site segregation, which severely hampers the catalytic activity and durability of the system. To address this issue, herein, we present a wet exsolution method to reconstruct surface segregation in perovskite cobalt oxide. Under reduction etching treatment of glycol solution, inert surface Sr segregation was transformed into active Co3O4 segregation. By varying the reaction time, we achieved differing coverage of the active Co3O4 segregation on the La0.5Sr0.5CoO3-δ (LSCO) perovskite oxide surface. This study reveals that CO oxidation activity exhibits a volcano-shaped dependence on the coverage of Co3O4 segregation at the surface of a perovskite cobalt oxide. Furthermore, we find that a suitable coverage of Co3O4 segregation can dramatically improve the catalytic activity of the perovskite catalyst by enhancing interface interactions. Co K-edge, Co L-edge, and O K-edge X-ray absorption spectra confirm that the synergistic effect optimizes the covalence of the metal-oxygen bond at the surface and interface. This work not only contributes to the design and development of perovskite-type catalysts, but also provides important insight into the relationship between surface segregation and catalytic activity.
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Affiliation(s)
- Zhen Li
- Guangxi Institute Fullerene Technology (GIFT), State Key Laboratory of Featured Metal Resources and Advanced Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Xiyang Wang
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Xinbo Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials, Jilin University, Changchun 130012, China
| | - Minli Zeng
- Guangxi Institute Fullerene Technology (GIFT), State Key Laboratory of Featured Metal Resources and Advanced Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Carl Redshaw
- Plastics Collaboratory, Department of Chemistry, University of Hull, Hull HU6 7RX, UK
| | - Rui Cao
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Changmin Hou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials, Jilin University, Changchun 130012, China
| | - Zuolong Chen
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Wenhua Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, Anhui, China
| | - Nannan Wang
- Guangxi Institute Fullerene Technology (GIFT), State Key Laboratory of Featured Metal Resources and Advanced Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Xiaofeng Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin Provincial International Cooperation Key Laboratory of Advanced Inorganic Solid Functional Materials, Jilin University, Changchun 130012, China.
| | - Yanqiu Zhu
- Guangxi Institute Fullerene Technology (GIFT), State Key Laboratory of Featured Metal Resources and Advanced Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yimin A Wu
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
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Lähteenlahti V, Schulman A, Beiranvand A, Huhtinen H, Paturi P. Electron Doping Effect in the Resistive Switching Properties of Al/Gd 1-xCa xMnO 3/Au Memristor Devices. ACS Appl Mater Interfaces 2021; 13:18365-18371. [PMID: 33832220 PMCID: PMC8288910 DOI: 10.1021/acsami.1c02963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
We report on the resistive switching (RS) properties of Al/Gd1-xCaxMnO3 (GCMO)/Au thin-film memristors. The devices were studied over the whole calcium substitution range x as a function of electrical field and temperature. The RS properties were found to be highly dependent on the Ca substitution. The optimal concentration was determined to be near x = 0.9, which is higher than the values reported for other similar manganite-based devices. We utilize an equivalent circuit model which accounts for the obtained results and allows us to determine that the electrical conduction properties of the devices are dominated by the Poole-Frenkel conduction mechanism for all compositions. The model also shows that lower trap energy values are associated with better RS properties. Our results indicate that the main RS properties of Al/GCMO/Au devices are comparable to those of other similar manganite-based materials, but there are marked differences in the switching behavior, which encourage further exploration of mixed-valence perovskite manganites for RS applications.
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Affiliation(s)
- Ville Lähteenlahti
- Wihuri Physical Laboratory, Department
of Physics and Astronomy, University of
Turku, FI-20014 Turku, Finland
| | - Alejandro Schulman
- Wihuri Physical Laboratory, Department
of Physics and Astronomy, University of
Turku, FI-20014 Turku, Finland
| | - Azar Beiranvand
- Wihuri Physical Laboratory, Department
of Physics and Astronomy, University of
Turku, FI-20014 Turku, Finland
| | - Hannu Huhtinen
- Wihuri Physical Laboratory, Department
of Physics and Astronomy, University of
Turku, FI-20014 Turku, Finland
| | - Petriina Paturi
- Wihuri Physical Laboratory, Department
of Physics and Astronomy, University of
Turku, FI-20014 Turku, Finland
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11
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Zhang B, Yu C, Li Z. Enhancing the Electrochemical Properties of LaCoO 3 by Sr-Doping, rGO-Compounding with Rational Design for Energy Storage Device. Nanoscale Res Lett 2020; 15:184. [PMID: 32970256 PMCID: PMC7515996 DOI: 10.1186/s11671-020-03411-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Perovskite oxides, as a kind of functional materials, have been widely studied in recent years due to its unique physical, chemical, and electrical properties. Here, we successfully prepared perovskite-type LaCoO3 (LCOs) nanomaterials via an improved sol-gel method followed by calcination, and investigated the influence of calcination temperature and time on the morphology, structure, and electrochemical properties of LaCoO3 nanomaterials. Then, based on the optimal electrochemical performance of LCO-700-4 electrode sample, the newly synthesized nanocomposites of Sr-doping (LSCO-0.2) and rGO-compounding (rGO@LCO) through rational design exhibited a 1.45-fold and 2.03-fold enhancement in its specific capacitance (specific capacity). The rGO@LCO electrode with better electrochemical performances was further explored by assembling rGO@LCO//rGO asymmetric supercapacitor system (ASS) with aqueous electrolyte. The result showed that the ASS delivers a high energy density of 17.62 W h kg-1 and an excellent cyclic stability with 94.48% of initial capacitance after 10,000 cycles, which are good electrochemical performances among aqueous electrolytes for green and new efficient energy storage devices.
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Affiliation(s)
- Bin Zhang
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, Henan, China.
| | - Chuanfu Yu
- Henan Aerospace Hydraulic & Pneumatic Technology Co., Ltd., Zhengzhou, 450011, China
| | - Zijiong Li
- School of Physics & Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
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12
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Wang X, Huang K, Qian J, Cong Y, Ge C, Feng S. Enhanced CO catalytic oxidation by Sr reconstruction on the surface of La(x)Sr(1-)(x)CoO(3-)(δ). Sci Bull (Beijing) 2017; 62:658-64. [PMID: 36659310 DOI: 10.1016/j.scib.2017.03.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 01/21/2023]
Abstract
Surface electronic structure of solid materials plays a critical role in heterogeneous catalysis. However, surface chemical composition of the perovskite oxides is usually dominated by segregated A-site cations and the amount of oxygen vacancies is relatively low, which seriously restricts their catalytic oxidation property. Here, we prepare perovskite LaxSr1-xCoO3-δ (x=0.3, 0.5, 0.7) with different Sr doping amount and experiment results show that perovskite LSCO with higher content of surface Sr possesses more oxygen vacancies and better catalytic activity. On this basis, we develop a new experimental strategy to create more surface oxygen vacancies to promote their CO catalytic activity. In this method, we use high active hydrogen atoms (BH4-) as reductant to realize surface in-situ chemical composite modification of LaxSr1-xCoO3-δ (x=0.3, 0.5, 0.7), which causes their surface reconstruction (surface Sr enrichment). The regulation mainly focuses on the atomic layer level without damaging their bulk phase structure. Different from traditional high temperature annealing under reducing atmosphere, this method is high-efficiency, green and controllable. Furthermore, we study the surface reconstruction process and demonstrated that it is atomic layer engineering on the surface of LaxSr1-xCoO3-δ (x=0.3, 0.5, 0.7) by X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS). Our experiment results also show that these samples treated by this method exhibit superior activity for CO oxidation compared with original samples.
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13
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Lloyd-Hughes J, Mosley CDW, Jones SPP, Lees MR, Chen A, Jia QX, Choi EM, MacManus-Driscoll JL. Colossal Terahertz Magnetoresistance at Room Temperature in Epitaxial La 0.7Sr 0.3MnO 3 Nanocomposites and Single-Phase Thin Films. Nano Lett 2017; 17:2506-2511. [PMID: 28287748 DOI: 10.1021/acs.nanolett.7b00231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Colossal magnetoresistance (CMR) is demonstrated at terahertz (THz) frequencies by using terahertz time-domain magnetospectroscopy to examine vertically aligned nanocomposites (VANs) and planar thin films of La0.7Sr0.3MnO3. At the Curie temperature (room temperature), the THz conductivity of the VAN was dramatically enhanced by over 2 orders of magnitude under the application of a magnetic field with a non-Drude THz conductivity that increased with frequency. The direct current (dc) CMR of the VAN is controlled by extrinsic magnetotransport mechanisms such as spin-polarized tunneling between nanograins. In contrast, we find that THz CMR is dominated by intrinsic, intragrain transport: the mean free path was smaller than the nanocolumn size, and the planar thin-film exhibited similar THz CMR to the VAN. Surprisingly, the observed colossal THz magnetoresistance suggests that the magnetoresistance can be large for alternating current motion on nanometer length scales, even when the magnetoresistance is negligible on the macroscopic length scales probed by dc transport. This suggests that colossal magnetoresistance at THz frequencies may find use in nanoelectronics and in THz optical components controlled by magnetic fields. The VAN can be scaled in thickness while retaining a high structural quality and offers a larger THz CMR at room temperature than the planar film.
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Affiliation(s)
- J Lloyd-Hughes
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - C D W Mosley
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - S P P Jones
- Department of Physics, Clarendon Laboratory, University of Oxford , Parks Road, Oxford, OX1 3PU, United Kingdom
| | - M R Lees
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - A Chen
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Q X Jia
- Materials Design and Innovation, School of Engineering and Applied Sciences, University at Buffalo , 311 Bell Hall, Buffalo, New York 14260-5030, United States
| | - E-M Choi
- Department of Materials Science, University of Cambridge , 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom
| | - J L MacManus-Driscoll
- Department of Materials Science, University of Cambridge , 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom
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