1
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Guo J, Li J, Xing X, Xiong W, Li H. Development of MOF-derived Co 3O 4 microspheres composed of fiber stacks for simultaneous electrochemical detection of Pb 2+ and Cu 2. Mikrochim Acta 2024; 191:542. [PMID: 39153097 PMCID: PMC11330412 DOI: 10.1007/s00604-024-06623-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 07/31/2024] [Indexed: 08/19/2024]
Abstract
As an ideal transition metal oxide, Co3O4 is a P-type semiconductor with excellent electrical conductivity, non-toxicity and low cost. This work reports the successful construction of Co3O4 materials derived from metal-organic frameworks (MOFs) using a surfactant micelle template-solvothermal method. The modified electrodes are investigated for their ability to electrochemically detect Pb2+ and Cu2+ in aqueous environments. By adjusting the mass ratios of alkaline modifiers, the morphological microstructures of Co3O4-X exhibit a transition from distinctive microspheres composed of fiber stacks to rods. The results indicate that Co3O4-1(NH4F/CO(NH2)2 = 1:0) has a distinctive microsphere structure composed of stacked fibers, unlike the other two materials. Co3O4-1/GCE is used as the active material of the modified electrode, it shows the largest peak response currents to Pb2+ and Cu2+, and efficiently detects Pb2+ and Cu2+ in the aqueous environment individually and simultaneously. The linear response range of Co3O4-1/GCE for the simultaneous detection of Pb2+ and Cu2+ is 0.5-1.5 μM, with the limits of detection (LOD, S/N = 3) are 9.77 nM and 14.97 nM, respectively. The material exhibits a favorable electrochemical response, via a distinctive Co3O4-1 microsphere structure composed of stacked fibers. This structure enhances the number of active adsorption sites on the material, thereby facilitating the adsorption of heavy metal ions (HMIs). The presence of oxygen vacancies (OV) can also facilitate the adsorption of ions. The Co3O4-1/GCE electrode also exhibits excellent anti-interference ability, stability, and repeatability. This is of great practical significance for detecting Pb2+ and Cu2+ in real water samples and provides a new approach for developing high-performance metal oxide electrochemical sensors derived from MOFs.
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Affiliation(s)
- Jieli Guo
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor & Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Jin Li
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor & Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Xiujing Xing
- Chemistry Department, University of California, Davis, 95616, USA
| | - Wei Xiong
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor & Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
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2
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Zhang L, Jiang H, Wang C, Yu K, Lv J, Wang C, Zhou B. Improved supercapacitors and water splitting performances of Anderson-type manganese(III)-polyoxomolybdate through assembly with Zn-MOF in a host-guest structure. J Colloid Interface Sci 2024; 654:1393-1404. [PMID: 37918098 DOI: 10.1016/j.jcis.2023.10.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
Enhancing performance through the combination of polyoxometalates (POMs) clusters with metal-organic frameworks (MOFs) that contain various transition metals is a challenging task. In this study, we synthesized a polyoxometalate-based metal-organic framework (POMOF) named HRBNU-5 using a solvothermal method. HRBNU-5 is composed of Zn[N(C4H9)4][MnMo6O18{(OCH2)3CNH2}2]@Zn3(C9H3O6)2·6C3H7NO, which includes two components: Zn[N(C4H9)4][MnMo6O18{(OCH2)3CNH2}2]·3C3H7NO ({Zn[MnMo6]}) and Zn3(C9H3O6)2·3C3H7NO (Zn-BTC). Structural characterization confirmed the host-guest structure, with Zn-BTC encapsulating {Zn[MnMo6]}. In a three-electrode system, HRBNU-5 exhibited a specific capacitance of 851.3 F g-1 at a current density of 1 A/g and retained high stability (97.2 %) after 5000 cycles. Additionally, HRBNU-5 performed well in aqueous-symmetric/asymmetric supercapacitors (SSC/ASC) in terms of energy density and power density in a double-electrode system. Moreover, it demonstrated excellent catalytic performance in a 1.0 M KOH solution, with low overpotentials and Tafel slopes for hydrogen and oxygen evolution reactions: 177.1 mV (η10 HER), 126.9 mV dec-1 and 370.3 mV (η50 OER), 36.3 mV dec-1, respectively, surpassing its precursors and most reported studies. HRBNU-5's positive performance is attributed to its host-guest structure, high electron-transfer conductivity, and porous structure that enhances efficient mass transport. This work inspires the design of Anderson-type POMOF electrode materials with multiple active sites and a well-defined structure.
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Affiliation(s)
- Lanyue Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China
| | - Hongquan Jiang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China.
| | - Chunmei Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China
| | - Kai Yu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China; Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin, Heilongjiang 150025, China.
| | - Jinghua Lv
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China
| | - Chunxiao Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China
| | - Baibin Zhou
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin, Heilongjiang 150025, China; Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin, Heilongjiang 150025, China.
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3
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Zhang X, Liu Z, Jin X, Liu F, Ma X, Qu N, Lu W, Tian Y, Zhang Q. From 1D to 2D: Controllable Preparation of 2D Ni-MOFs for Supercapacitors. Inorg Chem 2023; 62:7360-7365. [PMID: 37130241 DOI: 10.1021/acs.inorgchem.3c00535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Controllable modulation strategies between one-dimensional (1D) and two-dimensional (2D) structures have been rarely reported for metal-organic frameworks (MOFs). Here, 1D, 1D/2D, and 2D Ni-MOFs can be facilely prepared by adjusting the ratio of Ni2+ and the pyromellitic acid linker. A low-dimensional structure can shorten the transmission distance, while MOFs with a high Ni2+ content can supply rich active sites for oxidation-reduction reactions. The 2D structure Ni-MOF with an optimized Ni2+/pyromellitic acid ratio presents a good performance of 1036 F g-1 at a current density of 1 A g-1 with a comparable rate performance of 62% at 20 A g-1. The study may offer a facile design to control the structure of MOFs for employing in electrochemical energy storage.
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Affiliation(s)
- Xu Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Zhiqing Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Xingchen Jin
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Fengrui Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Xinlei Ma
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Ning Qu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Wang Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Yuhan Tian
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
| | - Qiang Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, Liaoning, China
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4
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Facile synthesis of neuronal nickel-cobalt-manganese sulfide for asymmetric supercapacitors with excellent energy density. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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5
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Niu L, Wu T, Chen M, Yang L, Yang J, Wang Z, Kornyshev AA, Jiang H, Bi S, Feng G. Conductive Metal-Organic Frameworks for Supercapacitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200999. [PMID: 35358341 DOI: 10.1002/adma.202200999] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/08/2022] [Indexed: 05/13/2023]
Abstract
As a class of porous materials with crystal lattices, metal-organic frameworks (MOFs), featuring outstanding specific surface area, tunable functionality, and versatile structures, have attracted huge attention in the past two decades. Since the first conductive MOF is successfully synthesized in 2009, considerable progress has been achieved for the development of conductive MOFs, allowing their use in diverse applications for electrochemical energy storage. Among those applications, supercapacitors have received great interest because of their high power density, fast charging ability, and excellent cycling stability. Here, the efforts hitherto devoted to the synthesis and design of conductive MOFs and their auspicious capacitive performance are summarized. Using conductive MOFs as a unique platform medium, the electronic and molecular aspects of the energy storage mechanism in supercapacitors with MOF electrodes are discussed, highlighting the advantages and limitations to inspire new ideas for the development of conductive MOFs for supercapacitors.
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Affiliation(s)
- Liang Niu
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Taizheng Wu
- Department of New Energy Science and Engineering and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ming Chen
- Department of New Energy Science and Engineering and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Long Yang
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jingjing Yang
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhenxiang Wang
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Alexei A Kornyshev
- Department of Chemistry, Imperial College London and Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Huili Jiang
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Sheng Bi
- Physicochimie des Électrolytes et Nanosystèmes Interfaciaux, CNRS 8234, Sorbonne Université, Paris, F-75005, France
| | - Guang Feng
- State Key Laboratory of Coal Combustion and School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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6
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Review on Recent Modifications in Nickel Metal-Organic Framework Derived Electrode (Ni-MOF) Materials for Supercapacitors. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02503-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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7
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Chen T, Yang A, Zhang W, Nie J, Wang T, Gong J, Wang Y, Ji Y. Architecting Nanostructured Co-BTC@GO Composites for Supercapacitor Electrode Application. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3234. [PMID: 36145021 PMCID: PMC9505437 DOI: 10.3390/nano12183234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Herein, we present an innovative graphene oxide (GO)-induced strategy for synthesizing GO-based metal-organic-framework composites (Co-BTC@GO) for high-performance supercapacitors. 1,3,5-Benzene tricarboxylic acid (BTC) is used as an inexpensive organic ligand for the synthesis of composites. An optimal GO dosage was ascertained by the combined analysis of morphology characterization and electrochemical measurement. The 3D Co-BTC@GO composites display a microsphere morphology similar to that of Co-BTC, indicating the framework effect of Co-BTC on GO dispersion. The Co-BTC@GO composites own a stable interface between the electrolyte and electrodes, as well as a better charge transfer path than pristine GO and Co-BTC. A study was conducted to determine the synergistic effects and electrochemical behavior of GO content on Co-BTC. The highest energy storage performance was achieved for Co-BTC@GO 2 (GO dosage is 0.02 g). The maximum specific capacitance was 1144 F/g at 1 A/g, with an excellent rate capability. After 2000 cycles, Co-BTC@GO 2 maintains outstanding life stability of 88.1%. It is expected that this material will throw light on the development of supercapacitor electrodes that hold good electrochemical properties.
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Affiliation(s)
- Tianen Chen
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Allen Yang
- Nord Anglia International School, Hong Kong, China
| | - Wei Zhang
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Jinhui Nie
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Tingting Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Jianchao Gong
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Yuanhao Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Yaxiong Ji
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
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8
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A stack-up electrochemical device based on metal organic framework modified carbon paper for ultra-trace lead and cadmium ions detection. Food Chem 2022; 398:133822. [DOI: 10.1016/j.foodchem.2022.133822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/05/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022]
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9
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Yao Y, Huang G, Liu Y, Li Y, Han G, Kang W, Xing B, Liu Q, Jia J, Zhang C. Microstructure modification of porous carbon induced by low-dosage manganese nitrate for high-performance supercapacitor electrode. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Hu N, Liao J, Liu X, Wei J, Wang L, Li M, Zong N, Xu R, Yang L, Wang J. CNTs support 2D NiMOF nanosheets for asymmetric supercapacitors with high energy density. Dalton Trans 2022; 51:16344-16353. [DOI: 10.1039/d2dt02055f] [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
The NiMOF/CNTs composite with NiMOF nanosheets grows along the CNTs is synthesized with a one-step solvothermal method, and the NiMOF/CNTs//AC asymmetric supercapacitors provide a high energy density of 113.8 Wh kg−1 at 800.0 W kg−1.
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Affiliation(s)
- Nianxiang Hu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Jiang Liao
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Xueliang Liu
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Jinlong Wei
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Li Wang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Min Li
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Naixuan Zong
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Ruidong Xu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Linjing Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, P. R. China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Junli Wang
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, P. R. China
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11
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Fan H, Zhao J, Wei X, Liu H, Xiong Y, Peng R, Wang B, Chu S. Gas-solid phase flow synthesis of Cu-Co-1,3,5-benzenetricarboxylate for electrocatalytic oxygen evolution. Chem Commun (Camb) 2021; 57:12297-12300. [PMID: 34730589 DOI: 10.1039/d1cc04770a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Using an environmentally friendly method to produce a stable and highly catalytically active electrocatalyst for the oxygen evolution reaction (OER) is becoming increasingly urgent. Herein, a novel bimetallic metal-organic framework (MOF), specifically a copper-cobalt 1, 3, 5-benzenetricarboxylate (Cu-Co-BTC) MOF, was successfully prepared by employing the gas-solid two-phase flow (GSF) synthetic technique. The as-prepared Cu-Co-BTC with its multiple active sites afforded a current density of 10 mA cm-2 at 239 mV for the OER in a 1 mol L-1 KOH solution, and showed a better electrocatalytic performance than did single-metal-containing Cu-BTC and Co-BTC materials. This work provides a new idea, one involving using novel gas-solid phase reactions for the preparation of electrocatalysts in large quantities.
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Affiliation(s)
- Hongliang Fan
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Jun Zhao
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Xijun Wei
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Huiqiang Liu
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Ying Xiong
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Rufang Peng
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Bing Wang
- State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science & Technology, Mianyang 621010, P. R. China.
| | - Sheng Chu
- State key Laboratory for Optoelectronics Materials and Technology, Sun Yat-sen University, Guangzhou 510275, P. R. China
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Zhang W, Gong L, Du N, Wang C, Yu K, Wang C, Zhou B. {BW 12O 40} Hybrids Modified by in Situ Synthesized Rigid Ligand with Supercapacitance and Photocatalytic Properties. Inorg Chem 2021; 60:16357-16369. [PMID: 34669382 DOI: 10.1021/acs.inorgchem.1c02174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Organic rigid ligand-modified polyoxometalate-based materials possess complex and diverse structures, promising electrochemical energy storage properties and outstanding photocatalytic capabilities. Hence, two new [BW12O40]5-(abbreviated as {BW12O40})-based inorganic-organic hybrids [{Cu(en)2(H2O)}][{Cu(pdc)(en)}{Cu(en)2}(BW12O40)]·2H2O (1) and [{CuI5(pz)6(H2O)4}(BW12O40)] (2) (pdc = 2-picolinate, en = ethylenediamine, pz = pyrazine) were successfully synthesized through a hydrothermal method. Among them, pdc and pz were obtained by in situ transformation from 2,6-pyridinedicarboxylic acid (H2 pydc) and 2,3-pyrazinedicarboxylic acid (H2pzdc), respectively. In compound 1, the {BW12O40} clusters as an intermediate junction connect with {Cu(pdc)(en)}{Cu(en)2} and {Cu(en)2(H2O)} to form monomers, which in turn form supramolecular chains, sheets, and space network via hydrogen bonding. The {BW12O40} clusters are packed into copper-pyrazine frameworks in compound 2, and a unique polyoxometalate-based metal organic frameworks (POMOFs) structure with a new topology of {12}2{6.123.142}2{62.12.142.18}{62.123.16}{6}6 is formed via covalent bonds. When used as electrode materials for supercapacitors, the values of specific capacitance are 651.56 F g-1 for 1-GCE and 584.43 F g-1 for 2-GCE at a current density of 2.16 A g-1 and good cycling stability (90.94%, 94.81% of the initial capacity after 5000 cycles at 15.12 A g-1, respectively). The kinetic analysis reveals that surface capacitance plays a major role. Furthermore, both compounds can effectively degrade Rhodamine B (RhB) and Methylene blue (MB), showing the outstanding photocatalytic performance.
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Affiliation(s)
- Wenjia Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Lige Gong
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China.,Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Nana Du
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Chunxiao Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Kai Yu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China.,Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Chunmei Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Baibin Zhou
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, People's Republic of China.,Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin 150025, People's Republic of China
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13
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Li L, Mi H, Jin Y, Ren D, Zhou K, Zhang Q, Liu J, Wang H. Fabrication of Vertical-Standing Co-MOF Nanoarrays with 2D Parallelogram-like Morphology for Aqueous Asymmetric Electrochemical Capacitors. Molecules 2021; 26:molecules26175394. [PMID: 34500830 PMCID: PMC8434315 DOI: 10.3390/molecules26175394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 11/24/2022] Open
Abstract
Metal organic frameworks (MOFs) have been considered as one of the most promising electrode materials for electrochemical capacitors due to their large specific surface area and abundant pore structure. Herein, we report a Co-MOF electrode with a vertical-standing 2D parallelogram-like nanoarray structure on a Ni foam substrate via a one-step solvothermal method. The as-prepared Co-MOF on a Ni foam electrode delivered a high area-specific capacitance of 582.0 mC cm−2 at a current density of 2 mA cm−2 and a good performance rate of 350.0 mC cm−2 at 50 mA cm−2. Moreover, an asymmetric electrochemical capacitor (AEC) device (Co-MOF on Ni foam//AC) was assembled by using the as-prepared Co-MOF on a Ni foam as the cathode and a active carbon-coated Ni foam as the anode to achieve a maximum energy density of 0.082 mW cm−2 at a power density of 0.8 mW cm−2, which still maintained 0.065 mW cm−2 at a high power density of 11.94 mW cm−2. Meanwhile, our assembled device exhibited an excellent cycling stability with a capacitance retention of nearly 100% after 1000 cycles. Therefore, this work provides a simple method to prepare MOF-based material for the application of energy storage and conversion.
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Affiliation(s)
| | | | - Yuhong Jin
- Correspondence: (Y.J.); (H.W.); Tel.: +86-010-67396288 (Y.J. & H.W.)
| | | | | | | | | | - Hao Wang
- Correspondence: (Y.J.); (H.W.); Tel.: +86-010-67396288 (Y.J. & H.W.)
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