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Rabbani SS, Mustafa H, Zafar A, Javaid S, Bakar MA, Nisar A, Liu Y, Karim S, Sun H, Hussain S, Zafar Z, Faiz Y, Faiz F, Yu Y, Ahmad M. Nickel foam supported hierarchical NiCo2S4@NiFe LDH heterostructures as highly efficient electrode for long cycling stability supercapacitor. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Amiri M, Dondapati J, Quintal J, Chen A. Sodium Hexa-Titanate Nanowires Modified with Cobalt Hydroxide Quantum Dots as an Efficient and Cost-Effective Electrocatalyst for Hydrogen Evolution in Alkaline Media. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40021-40030. [PMID: 36006793 DOI: 10.1021/acsami.2c11310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A novel electrocatalyst with high activity and enhanced durability toward the hydrogen evolution reaction (HER) in alkaline media has been designed and fabricated based on sodium hexa-titanate (Na2Ti6O13) nanowires synthesized by a hydrothermal process and modified with Co(OH)2 quantum dots (QDs) by a facile chemical bath deposition (CBD) method. The current response of the developed Ti/Na2Ti6O13/Co(OH)2 nanocomposite electrode attained 10 mA cm-2 at an overpotential of 159 mV. The nanocomposite electrode exhibited a high stability at an applied current of 100 mA cm-2. The remarkable catalytic behavior was achieved with a loading amount of ca. 0.06 mg cm-2 cobalt hydroxide. This is attributed to the high electrochemically active surface area (EASA) gained by the nanowire-structured substrate and considerable enhancement of electrochemical conductivity with the use of Co(OH)2 quantum dots as an active material. The superior catalytic activity and high stability show that the developed catalyst is a promising candidate for hydrogen production in alkaline media.
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Affiliation(s)
- Mona Amiri
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Jesse Dondapati
- Electrochemical Technology Centre, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Jonathan Quintal
- Electrochemical Technology Centre, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Aicheng Chen
- Electrochemical Technology Centre, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
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Wang C, Song Z, Shi P, Lv L, Wan H, Tao L, Zhang J, Wang H, Wang H. High-rate transition metal-based cathode materials for battery-supercapacitor hybrid devices. NANOSCALE ADVANCES 2021; 3:5222-5239. [PMID: 36132631 PMCID: PMC9418927 DOI: 10.1039/d1na00523e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 07/30/2021] [Indexed: 05/14/2023]
Abstract
With the rapid development of portable electronic devices, electric vehicles and large-scale grid energy storage devices, there is a need to enhance the specific energy density and specific power density of related electrochemical devices to meet the fast-growing requirements of energy storage. Battery-supercapacitor hybrid devices (BSHDs), combining the high-energy-density feature of batteries and the high-power-density properties of supercapacitors, have attracted mass attention in terms of energy storage. However, the electrochemical performances of cathode materials for BSHDs are severely limited by poor electrical conductivity and ion transport kinetics. As the rich redox reactions induced by transition metal compounds are able to offer high specific capacity, they are an ideal choice of cathode materials. Therefore, this paper reviews the currently advanced progress of transition metal compound-based cathodes with high-rate performance in BSHDs. We discuss some efficient strategies of enhancing the rate performance of transition metal compounds, including developing intrinsic electrode materials with high conductivity and fast ion transport; modifying materials, such as inserting defects and doping; building composite structures and 3D nano-array structures; interfacial engineering and catalytic effects. Finally, some suggestions are proposed for the potential development of cathodes for BSHDs, which may provide a reference for significant progress in the future.
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Affiliation(s)
- Cong Wang
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Zehao Song
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Pei Shi
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Lin Lv
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Houzhao Wan
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Li Tao
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Jun Zhang
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Hanbin Wang
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
| | - Hao Wang
- Hubei Yangtze Memory Labs, School of Microelectronics, Hubei University Wuhan 430000 PR China
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Chen G, Zhang X, Ma Y, Song H, Pi C, Zheng Y, Gao B, Fu J, Chu PK. In-Situ Synthesis of Heterostructured Carbon-Coated Co/MnO Nanowire Arrays for High-Performance Anodes in Asymmetric Supercapacitors. Molecules 2020; 25:molecules25143218. [PMID: 32679654 PMCID: PMC7397025 DOI: 10.3390/molecules25143218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/06/2020] [Accepted: 06/10/2020] [Indexed: 11/23/2022] Open
Abstract
Structural design is often investigated to decrease the electron transfer depletion in/on the pseudocapacitive electrode for excellent capacitance performance. However, a simple way to improve the internal and external electron transfer efficiency is still challenging. In this work, we prepared a novel structure composed of cobalt (Co) nanoparticles (NPs) embedded MnO nanowires (NWs) with an N-doped carbon (NC) coating on carbon cloth (CC) by in situ thermal treatment of polydopamine (PDA) coated MnCo2O4.5 NWs in an inert atmosphere. The PDA coating was carbonized into the NC shell and simultaneously reduced the MnCo2O4.5 to Co NPs and MnO NWs, which greatly improve the surface and internal electron transfer ability on/in MnO boding well supercapacitive properties. The hybrid electrode shows a high specific capacitance of 747 F g−1 at 1 A g−1 and good cycling stability with 93% capacitance retention after 5,000 cycles at 10 A g−1. By coupling with vanadium nitride with an N-doped carbon coating (VN@NC) negative electrode, the asymmetric supercapacitor delivers a high energy density of 48.15 Wh kg−1 for a power density of 0.96 kW kg−1 as well as outstanding cycling performance with 82% retention after 2000 cycles at 10 A g−1. The electrode design and synthesis suggests large potential in the production of high-performance energy storage devices.
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Affiliation(s)
- Guoqing Chen
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
| | - Xuming Zhang
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
- Correspondence: (X.Z.); (Y.Z.); (P.K.C.)
| | - Yuanhang Ma
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
| | - Hao Song
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Materials Science & Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chaoran Pi
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
| | - Yang Zheng
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
- Correspondence: (X.Z.); (Y.Z.); (P.K.C.)
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Materials Science & Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jijiang Fu
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China; (G.C.); (Y.M.); (H.S.); (C.P.); (B.G.); (J.F.)
| | - Paul K. Chu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Materials Science & Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Correspondence: (X.Z.); (Y.Z.); (P.K.C.)
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Lee C, Kim SK, Chang H, Jang HD. K 2Ti 6O 13 Nanoparticle-Loaded Porous rGO Crumples for Supercapacitors. NANO-MICRO LETTERS 2019; 12:10. [PMID: 34138076 PMCID: PMC7770654 DOI: 10.1007/s40820-019-0344-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/20/2019] [Indexed: 06/12/2023]
Abstract
One-dimensional alkali metal titanates containing potassium, sodium, and lithium are of great concern owing to their high ion mobility and high specific surface area. When those titanates are combined with conductive materials such as graphene, carbon nanotube, and carbon nanofiber, they are able to be employed as efficient electrode materials for supercapacitors. Potassium hexa-titanate (K2Ti6O13, KTO), in particular, has shown superior electrochemical properties compared to other alkali metal titanates because of their large lattice parameters induced by the large radius of potassium ions. Here, we present porous rGO crumples (PGC) decorated with KTO nanoparticles (NPs) for application to supercapacitors. The KTO NP/PGC composites were synthesized by aerosol spray pyrolysis and post-heat treatment. KTO NPs less than 10 nm in diameter were loaded onto PGCs ranging from 3 to 5 µm. Enhanced porous structure of the composites was obtained by the activation of rGO by adding an excessive amount of KOH to the composites. The KTO NP/PGC composite electrodes fabricated at the GO/KOH/TiO2 ratio of 1:3:0.25 showed the highest performance (275 F g-1) in capacitance with different KOH concentrations and cycling stability (83%) after 2000 cycles at a current density of 1 A g-1.
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Affiliation(s)
- Chongmin Lee
- Department of Nanomaterials Science and Engineering, University of Science and Technology, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources, Yuseong-gu, Daejeon, 34132, Republic of Korea
| | - Sun Kyung Kim
- Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources, Yuseong-gu, Daejeon, 34132, Republic of Korea
| | - Hankwon Chang
- Department of Nanomaterials Science and Engineering, University of Science and Technology, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources, Yuseong-gu, Daejeon, 34132, Republic of Korea
| | - Hee Dong Jang
- Department of Nanomaterials Science and Engineering, University of Science and Technology, Yuseong-gu, Daejeon, 34113, Republic of Korea.
- Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources, Yuseong-gu, Daejeon, 34132, Republic of Korea.
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