1
|
Zhao J, Liu X, Liu P, Deng K, Lv X, Tian W, Wang C, Tan S, Ji J. Oxygen vacancies refilling and potassium ions intercalation of δ-manganese dioxide with high structural stability toward 2.3 V high voltage asymmetric supercapacitors. J Colloid Interface Sci 2023; 629:1039-1048. [PMID: 36209567 DOI: 10.1016/j.jcis.2022.09.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 10/14/2022]
Abstract
Oxygen vacancies occupation and coordination environment modulation of the transition-metal based electrodes are effective strategies to improve the structural stability and electrochemical performance. In this work, the 2-methylimidazole (2-MI) doped manganese dioxide (MnO2) anchored on carbon cloth (CC) is fabricated via a simple method (MI-MnO2-x/CC), where the oxygen defects on/inside the K+ doped δ-MnO2 nanosheets are in-situ created by reductive ethanol/Mn2+ and occupied by 2-MI ligands. With the pre-embedded K+ ions and abundant ligand-refilled defects, the electronic coordination structure, structural stability and electron/ion diffusion efficiency can be effectively enhanced. Therefore, the MI-MnO2-x/CC reveals a remarkable specific capacitance of 721.2 mF cm-2 with excellent cycle durability (capacitance retention of 93.4% after 10,000 cycles) under 1.3 V operation potential window. In addition, an asymmetric supercapacitor assembled by MI-MnO2-x/CC and activated mechanical exfoliated graphene oxide yields a maximum energy density of 57.0 Wh kg-1 and a highest power density of 23.0 kW kg-1 under 2.3 V. This effective oxygen defect stabilization strategy by ligands refilling can be extended to various metal oxide-based electrodes for energy storage and conversion.
Collapse
Affiliation(s)
- Jingli Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xuesong Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Peng Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Kuan Deng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xingbin Lv
- College of Chemistry and Environment, Southwest Minzu University, Sichuan 610041, PR China
| | - Wen Tian
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Caihong Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Shuai Tan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Junyi Ji
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China.
| |
Collapse
|
2
|
Zhao Y, Wang Y, Huang Y, Liu W, Hu J, Zheng J, Wu L. Nickel carbonate Hydroxide-based Core-Triple-Shelled nanofibers with ultrahigh specific capacity for flexible hybrid supercapacitors. J Colloid Interface Sci 2023; 630:444-451. [DOI: 10.1016/j.jcis.2022.10.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/10/2022] [Accepted: 10/25/2022] [Indexed: 11/21/2022]
|
3
|
Liu Y, Chen T, Zhang Q, Jiang R. A Simple Hydrothermal Synthesis of Flower‐like NiCo
2
S
4
@Biomass‐graded Porous Carbon with Structural Synergy and Excellent Capacitive Performance. ChemistrySelect 2022. [DOI: 10.1002/slct.202200361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan‐zheng Liu
- School of Materials Science and Engineering Shandong Jianzhu University Jinan 250101 P. R. China
| | - Ting Chen
- School of Science Shandong Jianzhu University Jinan 250101 P. R. China
| | - Qiang Zhang
- School of Science Shandong Jianzhu University Jinan 250101 P. R. China
| | - Rong‐yan Jiang
- School of Materials Science and Engineering Shandong Jianzhu University Jinan 250101 P. R. China
| |
Collapse
|
4
|
Wang R, Hu D, Du P, Weng X, Tang H, Zhang R, Song W, Lin S, Huang K, Zhang R, Wang Y, Fan D, Pan X, Lei M. Pd Doped Co 3O 4 Loaded on Carbon Nanofibers as Highly Efficient Free-Standing Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions. Front Chem 2022; 9:812375. [PMID: 35096774 PMCID: PMC8789885 DOI: 10.3389/fchem.2021.812375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/06/2021] [Indexed: 12/14/2022] Open
Abstract
Self-supporting electrodes usually show excellent electrocatalytic performance which does not require coating steps, additional polymer binders, and conductive additives. Rapid in situ growth of highly active ingredient on self-supporting electric conductors is identified as a straight forward path to prepare binder-free and integrated electrodes. Here, Pd-doped Co3O4 loaded on carbon nanofiber materials through electrospinning and heat treatment was efficiently synthesized, and used as a free-standing electrode. Benefiting from its abundant active sites, high surface area and effective ionic conduction capability from three-dimensional (3D) nanofiber framework, Pd-Co3O4@CNF works as bifunctional oxygen electrode and exhibits superior activity and stability superior to commercial catalysts.
Collapse
Affiliation(s)
- Ruyue Wang
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China,Beijing Key Laboratory of Space-ground Interconnection and Convergence, Beijing University of Posts and Telecommunications (BUPT), Beijing, China
| | - Deshuang Hu
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - Peng Du
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China,Beijing Key Laboratory of Space-ground Interconnection and Convergence, Beijing University of Posts and Telecommunications (BUPT), Beijing, China
| | - Xiaodi Weng
- Unit 96911 of PLA, Beijing, China,*Correspondence: Xiaodi Weng, ; Sen Lin, ; Kai Huang,
| | - Haolin Tang
- Guangdong Hydrogen Energy Institute of WHUT, Foshan, China,Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, China
| | - Ruiming Zhang
- Guangdong Hydrogen Energy Institute of WHUT, Foshan, China,Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, China
| | - Wei Song
- School of Physical Science and Technology, Guangxi University, Nanning, China
| | - Sen Lin
- School of Physical Science and Technology, Guangxi University, Nanning, China,*Correspondence: Xiaodi Weng, ; Sen Lin, ; Kai Huang,
| | - Kai Huang
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China,*Correspondence: Xiaodi Weng, ; Sen Lin, ; Kai Huang,
| | - Ru Zhang
- Beijing Key Laboratory of Space-ground Interconnection and Convergence, Beijing University of Posts and Telecommunications (BUPT), Beijing, China
| | - Yonggang Wang
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - Dongyu Fan
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - Xuchao Pan
- Ministerial Key Laboratory of ZNDY, Nanjing University of Science andTechnology, Nanjing, China
| | - Ming Lei
- State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| |
Collapse
|
5
|
Xu Q, Wu C, Sun X, Liu H, Yang H, Hu H, Wu M. Flexible electrodes with high areal capacity based on electrospun fiber mats. NANOSCALE 2021; 13:18391-18409. [PMID: 34730603 DOI: 10.1039/d1nr05681f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The ever-growing portable, flexible, and wearable devices impose new requirements from power sources. In contrast to gravitational metrics, areal metrics are more reliable performance indicators of energy storage systems for portable and wearable devices. For energy storage devices with high areal metrics, a high mass loading of the active species is generally required, which imposes formidable challenges on the current electrode fabrication technology. In this regard, integrated electrodes made by electrospinning technology have attracted increasing attention due to their high controllability, excellent mechanical strength, and flexibility. In addition, electrospun electrodes avoid the use of current collectors, conductive additives, and polymer binders, which can essentially increase the content of the active species in the electrodes as well as reduce the unnecessary physically contacted interfaces. In this review, the electrospinning technology for fabricating flexible and high areal capacity electrodes is first highlighted by comparing with the typical methods for this purpose. Then, the principles of electrospinning technology and the recent progress of electrospun electrodes with high areal capacity and flexibility are elaborately discussed. Finally, we address the future perspectives for the construction of high areal capacity electrodes using electrospinning technology to meet the increasing demands of flexible energy storage systems.
Collapse
Affiliation(s)
- Qian Xu
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Chenghao Wu
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Xitong Sun
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Haiyan Liu
- New Energy Division, ShanDong Energy Group CO., LTD, Zoucheng 273500, China
| | - Hao Yang
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Han Hu
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Mingbo Wu
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| |
Collapse
|
6
|
Yin X, Li H, Han L, Meng J, Lu J, Song Q. All Si 3 N 4 Nanowires Membrane Based High-Performance Flexible Solid-State Asymmetric Supercapacitor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2008056. [PMID: 33763960 DOI: 10.1002/smll.202008056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Recently, much attention has been drawn in the development of flexible energy storage devices due to the increasing demands for flexible/portable electronic devices with high energy density, low weight, and good flexibility. Herein, vertically oriented graphene nanosheets (VGNs) are in situ fabricated on the surface of free-standing and flexible Si3 N4 nanowires (NWs) membrane by plasma-enhanced chemical vapor deposition (PECVD), which are directly used as flexible nanoscale conductive substrates. NiCo2 O4 hollow nanospheres (HSs) and FeOOH amorphous nanorods (NRs) are finally prepared on Si3 N4NWs @VGNs, which are served as the positive and negative electrodes, respectively. Profiting from the structural merits, the synthesized Si3 N4NWs @VGNs@NiCo2 O4HSs and Si3 N4NWs @VGNs@FeOOHNRs membrane electrodes exhibit remarkable electrochemical performance. Using Si3 N4NWs membrane as the separator, the assembled all Si3 N4NWs membrane-based flexible solid-state asymmetric supercapacitor (ASC) with a wide operating potential window of 1.8 V yields the outstanding energy density of 96.3 Wh kg-1 , excellent cycling performance (91.7% after 6000 cycles), and good mechanical flexibility. More importantly, this work provides a rational design strategy for the preparation of flexible electrode materials and broadens the applications of Si3 N4NWs in the field of energy storage.
Collapse
Affiliation(s)
- Xuemin Yin
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Hejun Li
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Liyuan Han
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Jiachen Meng
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Jinhua Lu
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Qiang Song
- State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, China
| |
Collapse
|
7
|
Dou S, Zhou S, Huang H, Yan P, Shoko E, Isimjan TT, Yang X. Metal-Organic Framework (MOF)-Derived Electron-Transfer Enhanced Homogeneous PdO-Rich Co 3 O 4 as a Highly Efficient Bifunctional Catalyst for Sodium Borohydride Hydrolysis and 4-Nitrophenol Reduction. Chemistry 2020; 26:16923-16931. [PMID: 32930448 DOI: 10.1002/chem.202003793] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/11/2020] [Indexed: 12/17/2022]
Abstract
Developing a bifunctional catalyst with low cost and high catalytic performance in NaBH4 hydrolysis for H2 generation and selective reduction of nitroaromatics will make a significant impact in the field of sustainable energy and water purification. Herein, a low-loading homogeneously dispersed Pd oxide-rich Co3 O4 polyhedral catalyst (PdO-Co3 O4 ) with concave structure is reported by using a metal-organic framework (MOF)-templated synthesis method. The results show that the PdO-Co3 O4 catalyst has an exceptional turnover frequency (3325.6 molH2 min-1 molPd -1 ), low activation energy (43.2 kJ mol-1 ), and reasonable reusability in catalytic H2 generation from NaBH4 hydrolysis. Moreover, the optimized catalyst also shows excellent catalytic performance in the NaBH4 selective reduction of 4-nitrophenol to 4-aminiphenol with a high first-order reaction rate of approximately 1.31 min-1 . These excellent catalytic properties are mainly ascribed to the porous concave structure, monodispersed Pd oxide, as well as the unique synergy between PdO and Co3 O4 species, which result in a large specific surface area, high conductivity, and fast solute transport and gas emissions.
Collapse
Affiliation(s)
- Shasha Dou
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Shuqing Zhou
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Hexiu Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Puxuan Yan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Elvis Shoko
- Department of Chemistry, University of Liverpool, Liverpool, L69 3BX, UK
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| |
Collapse
|
8
|
Huang J, Xiong Y, Peng Z, Chen L, Wang L, Xu Y, Tan L, Yuan K, Chen Y. A General Electrodeposition Strategy for Fabricating Ultrathin Nickel Cobalt Phosphate Nanosheets with Ultrahigh Capacity and Rate Performance. ACS NANO 2020; 14:14201-14211. [PMID: 33012161 DOI: 10.1021/acsnano.0c07326] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Transition-metal phosphates/phosphides possess promising theoretical electrochemical characteristics and exhibit great potential in advanced supercapacitors. Unfortunately, limited by the processing techniques and overall structure, their specific capacity and rate performance are still unsatisfactory. Herein, we report the fabrication of transition-metal phosphate electrodes with an ultrathin sheetlike array structure by one-step electrodeposition at room temperature. As a proof-of-concept, a transition-metal phosphate member of NiCo(HPO4)2·3H2O with an ultrathin nanosheet structure (thickness ∼2.3 nm) was synthesized and investigated. The as-prepared NiCo(HPO4)2·3H2O electrode showcases an ultrahigh specific capacity of 1768.5 C g-1 at 2 A g-1 (the highest value for transition-metal phosphates/phosphides reported to date), superb rate performance of 1144.8 C g-1 at 100 A g-1, and excellent electrochemical stability. Moreover, the transition-metal phosphate nanosheet array can be uniformly deposited on various conductive substrates, demonstrating the generality of our strategy. Therefore, this simple electrodeposition strategy provides an opportunity to fabricate ultrathin transition-metal phosphate nanosheet materials that can be used for energy storage/conversion, electrocatalysis, and other electrochemical energy-related devices.
Collapse
Affiliation(s)
- Jun Huang
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Yushuai Xiong
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Zhongyou Peng
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Lingfang Chen
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Li Wang
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Yazhou Xu
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Licheng Tan
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Kai Yuan
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Yiwang Chen
- Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Advanced Scientific Research (iASR), Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| |
Collapse
|
9
|
Li M, Dolci M, Roussel P, Barras A, Szunerits S, Boukherroub R. High-performance flexible hybrid supercapacitor based on NiAl layered double hydroxide as a positive electrode and nitrogen-doped reduced graphene oxide as a negative electrode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136664] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
10
|
Jiang H, Tian L, Chen P, Bai Y, Li X, Shu H, Luo X. Efficient antimony removal by self-assembled core-shell nanocomposite of Co 3O 4@rGO and the analysis of its adsorption mechanism. ENVIRONMENTAL RESEARCH 2020; 187:109657. [PMID: 32450426 DOI: 10.1016/j.envres.2020.109657] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/02/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
Co3O4@rGO were facilely prepared by template free self-assemble in this study. The morphology of Co3O4@rGO was actiniaria-like core-shell structural nanocomposites. The formation mechanism of Co3O4@rGO core-shell nanocomposite was discussed according to its significant time-dependent morphology evolution course. To evaluate the application potential of Co3O4@rGO, its adsorption performance toward highly toxic antimony ions were studied. The Co3O4@rGO nanocomposite exhibit high anti-interference ability and high adsorption ability. The maximum adsorption capacities towards Sb(III) and Sb(V) are 151.04 and 165.51 mg/g, respectively. River water samples containing antimony violating the limit were used to evaluate the practical application of Co3O4@rGO, and high performance was achieved. The EU and China limits for antimony in drinking water can be met by using mesoporous Co3O4@rGO treating the actual river water samples with original antimony concentration lower than 50 μg/L. Adsorption isotherm, adsorption kinetics, pH and co-existing ions effects were also studied in details. The results indicate that mesoporous Co3O4@rGO is an excellent adsorbent for antimony removal. Mesoporous Co3O4@rGO nanocomposite is a potential candidate for antimony removal from waste water.
Collapse
Affiliation(s)
- Hualin Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Lei Tian
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Pinghua Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China.
| | - Yingchen Bai
- State Key Laboratory of Lakes Protection and Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Xueqin Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Hongying Shu
- College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, PR China.
| |
Collapse
|
11
|
High performance flexible hybrid supercapacitors based on nickel hydroxide deposited on copper oxide supported by copper foam for a sunlight-powered rechargeable energy storage system. J Colloid Interface Sci 2020; 579:520-530. [PMID: 32623118 DOI: 10.1016/j.jcis.2020.06.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 10/24/2022]
Abstract
Herein, an integrated system combining solar cells with a hybrid supercapacitor for operating a homemade windmill device was assembled, achieving energy conversion, storage and utilization. As a candidate for positive electrode of hybrid supercapacitor devices, battery-like Ni(OH)2@CuO@Cu binder-free electrode was fabricated by a two-step process at ambient temperature. CuO@Cu was prepared by chemical oxidation method to act as the supporting electrode for electrochemical deposition of Ni(OH)2. Various deposition times (30, 50, 90, 150 and 200 s) were investigated to optimize the energy storage characteristics of the resulting Ni(OH)2@CuO@Cu electrode materials. Among all the samples, Ni(OH)2@CuO@Cu-150 exhibited the largest areal capacity of 7063 mC cm-2 at 20 mA cm-2, and was therefore chosen as the positive electrode in a hybrid supercapacitor device. Using N-doped reduced graphene oxide on nickel foam (N-rGO/NF) as the negative electrode, a hybrid supercapacitor was assembled. It displayed good flexibility, cycling stability and high areal energy density of 130.4 μWh cm-2 at a power density of 1.6 mW cm-2. Two hybrid supercapacitor devices were connected in series to successfully lighten up a red LED for 12 min 39 s, while three devices assembled in series were able to successfully power a three-digit digital display for 1 min 28 s. Interestingly, the hybrid supercapacitor device, charged by solar cells, further operated a homemade windmill device for 59 s, achieving sunlight-powered integration system. All of the findings suggested the practical application potential of the hybrid supercapacitor based on Ni(OH)2@CuO@Cu composite as energy storage device.
Collapse
|
12
|
Liu Y, Huo J, Guo J, Lu L, Shen Z, Chen W, Liu C, Liu H. Hierarchical Porous Molybdenum Carbide Based Nanomaterials for Electrocatalytic Hydrogen Production. Front Chem 2020; 8:426. [PMID: 32509734 PMCID: PMC7248382 DOI: 10.3389/fchem.2020.00426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/23/2020] [Indexed: 02/04/2023] Open
Abstract
The electrocatalytic hydrogen evolution reaction (HER) for the preparation of hydrogen fuel is a very promising technology to solve the shortage of hydrogen storage. However, in practical applications, HER catalysts with excellent performance and moderate price are very rare. Molybdenum carbide (MoxC) has attracted extensive attention due to its electronic structure and natural abundance. Here, a comprehensive review of the preparation and performance control of hierarchical porous molybdenum carbide (HP-MoxC) based catalysts is summarized. The methods for preparing hierarchical porous materials and the regulation of their HER performance are mainly described. Briefly, the HP-MoxC based catalysts were prepared by template method, morphology-conserved transformations method, and secondary conversion method of an organic-inorganic hybrid material. The intrinsic HER kinetics are enhanced by the introduction of a carbon-based support, heteroatom doping, and the construction of a heterostructure. Finally, the future development of HP-MoxC based catalysts is prospected in this review.
Collapse
Affiliation(s)
- Yan Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Juanjuan Huo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Jiaojiao Guo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Li Lu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Ziyan Shen
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Weihua Chen
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, China
| | - Hao Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China.,Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| |
Collapse
|
13
|
Qu G, Li C, Hou P, Zhao G, Wang X, Zhang X, Xu X. Hierarchically hollow structured NiCo 2S 4@NiS for high-performance flexible hybrid supercapacitors. NANOSCALE 2020; 12:4686-4694. [PMID: 32048681 DOI: 10.1039/c9nr09991c] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Hierarchical nanostructures with outstanding electrochemical properties and mechanical stability are ideal for constructing flexible hybrid supercapacitors. Herein, hierarchically hollow NiCo2S4@NiS nanostructures were designed and synthesized by sulfurizing the hierarchical NiCo double hydroxides (DHs) coated with nickel hydroxide nanostructures on carbon fabrics (NiCo-DHs@Ni(OH)2/CF), which trigger excellent electrochemical performances. The NiCo2S4@NiS/CF exhibits a high specific capacity of 1314.0 C g-1 at a current density of 1 A g-1, and maintains the rate performance at about 79.2% of the initial capacity at 30 A g-1. The hybrid supercapacitors of NiCo2S4@NiS//AC display a high energy density of 62.4 W h kg-1 at a power density of 800 W kg-1 with a remarkable cycling stability (96.2% of initial capacitance after 5000 cycles) and robust mechanical flexibility (no obvious decay of specific capacitance during various deformations). Consequently, NiCo2S4@NiS electrodes are expected to be a promising candidate for new smart energy storage devices with high security, stability and flexibility.
Collapse
Affiliation(s)
- Guangmeng Qu
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| | - Chuanlin Li
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| | - Peiyu Hou
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| | - Gang Zhao
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| | - Xiao Wang
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| | - Xiaoli Zhang
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, 450001 P.R. China
| | - Xijin Xu
- School of Physics and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, P. R. China.
| |
Collapse
|
14
|
Co3O4 nanowire@ultrathin Ni-Co layered double hydroxide core-shell arrays with vertical transfer channel for high-performance supercapacitor. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113887] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|