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Yin SH, Li XH, Zhang RZ, Cui HL. External Electric Field-Induced the Modulation of the Band Gap and Quantum Capacitance of F-Functionalized Two-Dimensional Sc 2C. ACS OMEGA 2023; 8:28608-28614. [PMID: 37576629 PMCID: PMC10413470 DOI: 10.1021/acsomega.3c03102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023]
Abstract
The modulation of electronic properties and quantum capacitance of Sc2CF2 under a perpendicular external E-field was investigated using density functional calculations for the potential application of nanoelectronics and nanophotonics. Sc2CF2 has an indirect band gap of 0.959 eV without an E-field. Furthermore, it undergoes a semiconducting-metallic transition under a positive E-field and a semiconductor-insulator transition under a negative E-field. The application of the negative E-field makes Sc2CF2 have an indirect band gap. Sc-d, F-p, and C-p states are mainly responsible for the significant variation of the band gap. Sc2CF2 under an external E-field always keeps the character of a cathode material under the whole potential. Especially, Sc2CF2 under a negative external E-field is more suitable for the cathode material due to its much smaller |Qp|/|Qn| with much higher Qn. The charge analysis is further performed.
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Affiliation(s)
- She-Hui Yin
- Physical
Teaching and Research of Fundamental Teaching Section, Henan Polytechnic Institute, Nanyang 473000, China
| | - Xiao-Hong Li
- College
of Physics and Engineering, Henan University
of Science and Technology, Luoyang 471023, China
| | - Rui-Zhou Zhang
- College
of Physics and Engineering, Henan University
of Science and Technology, Luoyang 471023, China
| | - Hong-Ling Cui
- College
of Physics and Engineering, Henan University
of Science and Technology, Luoyang 471023, China
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2
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Khaja Hussain S, Bang JH. Overview of the oxygen vacancy effect in bimetallic spinel and perovskite oxide electrode materials for high-performance supercapacitors. Phys Chem Chem Phys 2023; 25:11892-11907. [PMID: 37097013 DOI: 10.1039/d3cp00472d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Bimetallic spinel and perovskite metal oxide materials are advanced electrode materials for supercapacitor (SC) applications because of their low-cost, distinct crystal structures, eco-friendly nature, and high conductivity. However, they suffer from the disadvantages of poor ion-diffusion kinetics and pulverization issues during cyclability tests. Along with a deeper understanding of redox chemistry, the role of oxygen vacancies (OVs) in electrode materials to support the reaction kinetics for excellence in SCs must be clarified. In this review, we highlight for the first time the importance of OVs and summarize various design strategies for the preparation of advanced bimetallic spinel oxides and perovskites with improved electrochemical performances for SC applications. With new insights, we envision that the SC research community would endeavor to utilize the benefits of OVs effectively for the development of high-performance SCs.
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Affiliation(s)
- Sk Khaja Hussain
- Nanosensor Research Institute, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 15588, Republic of Korea.
| | - Jin Ho Bang
- Nanosensor Research Institute, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 15588, Republic of Korea.
- Department of Chemical and Molecular Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
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3
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Zhang Y, Gan M, Ma L, Zhao W, Li X, Hua X, Wang L. Oxygen vacancy‐enriched Co3O4 as efficient co‐catalyst for Pt nanoparticles towards methanol electrooxidation. ChemElectroChem 2022. [DOI: 10.1002/celc.202101516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuchao Zhang
- Chongqing University college of chemistry and chemical engineering CHINA
| | - Mengyu Gan
- Chongqing University college of chemistry and chemical engineering CHINA
| | - Li Ma
- Chongqing University College of Chemistry and Chemical Engineering Shazheng street 174Shapingba 400030 Chongqing CHINA
| | - Wei Zhao
- Chongqing University college of chemistry and chemical engineering CHINA
| | - Xudong Li
- Chongqing University college of chemistry and chemical engineering CHINA
| | - Xuelian Hua
- Chongqing University college of chemistry and chemical engineering CHINA
| | - Ling Wang
- Chongqing University college of chemistry and chemical engineering CHINA
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4
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Zhang Q, Zhu J, Yang S, Chen L, Sun M, Yang X, Wang P, Li K, Zhao P. Co 2P decorated Co 3O 4 nanocomposites supported on carbon cloth with enhanced electrochemical performance for asymmetric supercapacitors. NEW J CHEM 2022. [DOI: 10.1039/d2nj00276k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective strategy is demonstrated to promote electrochemical performance by the combination of Co3O4 with Co2P to form a composite electrode.
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Affiliation(s)
- Qian Zhang
- Institute for Advanced Study, Chengdu University, No. 2025, Chengluo 12 Avenue, Chengdu, 610106, P. R. China
| | - Jie Zhu
- Institute for Advanced Study, Chengdu University, No. 2025, Chengluo 12 Avenue, Chengdu, 610106, P. R. China
| | - Sudong Yang
- Institute for Advanced Study, Chengdu University, No. 2025, Chengluo 12 Avenue, Chengdu, 610106, P. R. China
| | - Lin Chen
- Institute for Advanced Study, Chengdu University, No. 2025, Chengluo 12 Avenue, Chengdu, 610106, P. R. China
| | - Maosong Sun
- Research Center for Optoelectronic Materials and Devices, School of Physical Science Technology, Guangxi University, Nanning 530004, China
| | - Xulin Yang
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Pan Wang
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Kui Li
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Peng Zhao
- Institute for Advanced Study, Chengdu University, No. 2025, Chengluo 12 Avenue, Chengdu, 610106, P. R. China
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5
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Klein J, Kampermann L, Saddeler S, Korte J, Kowollik O, Smola T, Schulz S, Bacher G. Atmosphere-sensitive photoluminescence of Co x Fe 3-x O 4 metal oxide nanoparticles. RSC Adv 2021; 11:33905-33915. [PMID: 35497307 PMCID: PMC9042345 DOI: 10.1039/d1ra06228j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022] Open
Abstract
In this work the photoluminescence (PL) of Co x Fe3-x O4 spinel oxide nanoparticles under pulsed UV laser irradiation (λ exc = 270 nm) is investigated for varying Co/Fe ratios (x = 0.4⋯2.5). A broad emission in the green spectral range is observed, exhibiting two maxima at around 506 nm, which is dominant for Fe-rich nanoparticles (x = 0.4, 0.9), and at around 530 nm, that is more pronounced for Co-rich nanoparticles (x > 1.6). As examinations in different atmospheres show that the observed emission reacts sensitively to the presence of water, it is proposed that the emission is mainly caused by OH groups with terminal or bridging metal-O bonds on the Co x Fe3-x O4 surface. Raman spectroscopy supports that the emission maximum at 506 nm corresponds to terminal OH groups bound to metal cations on tetrahedral sites (i.e., Fe3+), while the maximum around 530 nm corresponds to terminal OH groups bound to metal cations on octahedral sites (i.e., Co3+). Photoinduced dehydroxylation shows that OH groups can be removed on Fe-rich nanoparticles more easily, leading to a conversion process and the formation of new OH groups with different bonds to the surface. As such behavior is not observed for Co x Fe3-x O4 with x > 1.6, we conclude that the OH groups are more stable against dehydroxylation on Co-rich nanoparticles. The higher OH stability is expected to lead to a higher catalytic activity of Co-rich cobalt ferrites in the electrochemical generation of oxygen.
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Affiliation(s)
- Julian Klein
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
| | - Laura Kampermann
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
| | - Sascha Saddeler
- Institute of Inorganic Chemistry and CENIDE, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
| | - Jannik Korte
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
| | - Oliver Kowollik
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
| | - Tim Smola
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
| | - Stephan Schulz
- Institute of Inorganic Chemistry and CENIDE, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
| | - Gerd Bacher
- Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen Bismarckstraße 81 47057 Duisburg Germany
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6
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Muthukumar P, Narasimhan S, Selvam AP, Mariappan M, Assiri MA, Anthony SP. Cobalt coordination controlled carbon nanospheres formation and inclusion of amorphous Co 3O 4 and AuNPs: strongly enhanced oxygen evolution reaction with excellent mass activity. Dalton Trans 2021; 50:10493-10500. [PMID: 34259287 DOI: 10.1039/d1dt01649k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon nanospheres integrated with AuNPs and amorphous Co3O4 were fabricated by making use of cobalt coordination with AuNP surface ligands, which exhibited an enhanced oxygen evolution reaction (OER) with excellent mass activity. Co2+ coordination with AuNP surface functional molecules significantly influenced the nanostructure formation and OER activity. Nanospheres of carbon with an optimum concentration of AuNPs and Co3O4 (2) showed strong OER activity. 2 exhibited a high current density (358 mA cm-2 at an applied potential of 1.59 V) and required a low overpotential (256 mV) to generate a geometric current density (10 mA cm-2) compared to commercial RuO2 (363 mV). Importantly, 2 showed high mass activity (1352.5 mA mg-1), 14 times higher than RuO2 (93.87 mA mg-1). The low Tafel slope (52.4 mV dec-1) and charge transfer resistance along with large double layer capacitance (Cdl = 20.1) of 2 suggest strong electronic communication between the catalyst and the electrode surface and facilitated fast charge transport. Chronoamperometric studies confirmed the excellent stability of the catalyst. The present work demonstrates that the electrocatalytic activity of earth-abundant amorphous metal oxides can be strongly enhanced by integrating metallic nanoparticles (NPs) and optimizing nanostructures.
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Affiliation(s)
- Pandi Muthukumar
- Department of Chemistry, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur-613401, Tamil Nadu, India.
| | - Shreya Narasimhan
- Department of Chemistry, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur-613401, Tamil Nadu, India.
| | | | - Mariappan Mariappan
- Department of Chemistry, SRM IST, Kattankulathur, Chennai-603203, Tamil Nadu, India
| | - Mohammed A Assiri
- Department of Chemistry, King Khalid University, Abha 61413, Saudi Arabia
| | - Savarimuthu Philip Anthony
- Department of Chemistry, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur-613401, Tamil Nadu, India.
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7
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Computational screening toward quantum capacitance of transition-metals and vacancy doped/co-doped graphene as electrode of supercapacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Xiong L, Ni D, Xiong W, Wang H, Ouyang C. The thermodynamics and electronic structure analysis of P-doped spinel Co 3O 4. Phys Chem Chem Phys 2021; 23:3588-3594. [PMID: 33522522 DOI: 10.1039/d0cp05284a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermodynamics of phosphorus (P) doping to spinel Co3O4, for both bulk cases and (100) and (110) surface cases, is studied using first principles calculations. The doping energies of the P atom at different doping sites are carefully calculated and compared. It is shown that P doping at Co sites, at either tetrahedral or octahedral sites, is energetically favorable, while P doping and replacing O atoms are energetically unfavorable. The doping energy difference is large enough to conclude that P doping has a very strong preference to take the Co sites, rather than the O sites in spinel Co3O4. Even when O-vacancy is available, P doping and taking the O-vacancy site is thermodynamically unfavorable. The physical/chemical mechanism behind this phenomenon is carefully analyzed. Electronic structure analysis shows that P doping and replacing the Co atom brings excess electrons to the Co3O4 system, which is beneficial to enhance the electrochemical and catalytic performance of the spinel Co3O4. Our results clarified the misleading results of P doping and replacing O atoms in spinel Co3O4 reported in the literature.
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Affiliation(s)
- Lixin Xiong
- Department of Physics, Laboratory of Computational Materials Physics, Jiangxi Normal University, Nanchang, 330022, China.
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9
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Abd-Elrahim A, Chun DM. Nanosized Co3O4–MoS2 heterostructure electrodes for improving the oxygen evolution reaction in an alkaline medium. JOURNAL OF ALLOYS AND COMPOUNDS 2021; 853:156946. [DOI: 10.1016/j.jallcom.2020.156946] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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10
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Yao L, Yang W, Niu Y, Liu J, Zhang S, Wu S, Deng Z, Ma L, Wang C, Cao Z. Comparison of the effects of cation and phosphorus doping in cobalt-based spinel oxides towards the oxygen evolution reaction. CrystEngComm 2021. [DOI: 10.1039/d0ce01771j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphorus incorporation further boosted the OER activity of cation-doped Co-based spinel oxides via remarkably tuning the oxygen vacancies, crystallinity and electrochemically active surface area on the surface.
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Affiliation(s)
- Lili Yao
- School and Hospital of Stomatology
- Wenzhou Medical University
- Wenzhou 325027
- PR China
| | - Wenxiu Yang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- PR China
| | - Yongjian Niu
- Tianjin Key Laboratory of Advanced Functional Porous Materials and Center for Electron Microscopy
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Jiming Liu
- School and Hospital of Stomatology
- Wenzhou Medical University
- Wenzhou 325027
- PR China
| | - Shun Zhang
- Tianjin Key Laboratory of Advanced Functional Porous Materials and Center for Electron Microscopy
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Shuyi Wu
- School and Hospital of Stomatology
- Wenzhou Medical University
- Wenzhou 325027
- PR China
| | - Zhennan Deng
- School and Hospital of Stomatology
- Wenzhou Medical University
- Wenzhou 325027
- PR China
| | - Lin Ma
- College of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- PR China
| | - Cheng Wang
- Tianjin Key Laboratory of Advanced Functional Porous Materials and Center for Electron Microscopy
- Institute for New Energy Materials & Low-Carbon Technologies
- School of Materials Science and Engineering
- Tianjin University of Technology
- Tianjin 300384
| | - Zhensheng Cao
- School and Hospital of Stomatology
- Wenzhou Medical University
- Wenzhou 325027
- PR China
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11
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Abd-Elrahim A, Chun DM. Fabrication of efficient nanostructured Co3O4-Graphene bifunctional catalysts: Oxygen evolution, hydrogen evolution, and H2O2 sensing. CERAMICS INTERNATIONAL 2020; 46:23479-23498. [DOI: 10.1016/j.ceramint.2020.06.118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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12
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Cao Y, Zhang AQ, Luo HW, Gao HL, Yan J, Yan QQ, Liu YM, Zhang Y. Hierarchical urchin-like Fe2O3 structures grown directly on Ti foils for binder-free lithium-ion batteries with fast charging/discharging properties. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107769] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Graphene In Situ Coated High-Oxygen Vacancy Co3O4−x Sphere Composites for High-Stability Supercapacitors. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04337-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Zhang L, Zhang T, Dai K, Zhao L, Wei Q, Zhang B, Xiang X. Ultrafine Co3O4 nanolayer-shelled CoWP nanowire array: a bifunctional electrocatalyst for overall water splitting. RSC Adv 2020; 10:29326-29335. [PMID: 35521139 PMCID: PMC9055948 DOI: 10.1039/d0ra05950a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 07/22/2020] [Indexed: 01/01/2023] Open
Abstract
The development of bifunctional electrocatalysts based on highly efficient non-noble metals is pivotal for overall water splitting. Here, a composite electrode of Co3O4@CoWP is synthesized, where an ultrathin layer composed of Co3O4 nanoparticles is grown on CoWP nanowires supported on a carbon cloth (CC). The Co3O4@CoWP/CC electrode exhibits excellent electrocatalytic activity and improved kinetics towards both the oxygen and hydrogen evolution reactions (OER and HER). The Co3O4@CoWP/CC electrode achieves a current density of 10 mA cm−2 at a low overpotential of 269 mV for the OER and −10 mA cm−2 at 118 mV for the HER in 1.0 M KOH solution. The voltage applied to a two-electrode water electrolyzer for overall water splitting, while employing the Co3O4@CoWP/CC electrode as both an anode and a cathode, in order to reach a current density of 10 mA cm−2, is 1.61 V, which is better than that for the majority of reported non-noble electrocatalysts. Moreover, the Co3O4@CoWP/CC electrode exhibits good stability over 24 h with slight attenuation. The electrode benefits from the enhanced adsorption of oxygen intermediates on Co3O4 during the OER, the increased ability for water dissociation and the optimized H adsorption/desorption ability of CoWP nanowires during the HER. This study provides a feasible approach for cost-effective and high-performance non-noble metal bifunctional catalysts for overall water electrolysis. A hierarchical 3D self-supporting CoWP nanowire array shelled with an ultrathin Co3O4 nanolayer on carbon cloth (Co3O4@CoWP/CC) exhibits superior overall water electrolysis capability.![]()
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Affiliation(s)
- Lili Zhang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
- State Key Laboratory of Chemical Resource Engineering
| | - Tingting Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Kaiqing Dai
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Liqing Zhao
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Qinghe Wei
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Bing Zhang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Xu Xiang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
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Zhao N, Fan H, Zhang M, Ma J, Zhang W, Wang C, Li H, Jiang X, Cao X. Investigating the large potential window of NiCo2O4 supercapacitors in neutral aqueous electrolyte. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134681] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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