Cobalt MOFs base on benzimidazol and varied carboxylate ligands with higher capacitance for supercapacitors and magnetic properties

Dong, Jun-Liang; Xie, Fajun; Du, Jia-Qiang; Lan, Hai-Ming; Yang, Ru-Xia; Wang, Duo-Zhi

doi:10.1016/j.jssc.2019.120917

Cited by 11 publications

(6 citation statements)

References 57 publications

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“…Nevertheless, among the most intriguing applications for Co-MOFs, there is the low-dimensional magnetism. Divalent cobalt centers in MOFs offer the opportunity to realize low dimensional magnetism studies [17,18]. In fact, the different arrangements that cobalt ions can have in the MOFs metal nodes (chains [19], single atoms [20], paddle wheel [21]) allows one to obtain materials with very peculiar magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

et al. 2021

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We report on the synthesis and the characterization of a novel cobalt trimesate metal-organic framework, designated as KCL-102. Powder X-ray diffraction pattern of KCL-102 is dominated by a reflection at 10.2° (d-spacing = 8.7 Å), while diffuse reflectance UV-Vis spectroscopy indicates that the divalent cobalt centers are in two different coordination geometries: tetrahedral and octahedral. Further, the material shows low stability in humid air, and it transforms into the well-known phase of hydrous cobalt trimesate, Co3(BTC)2·12H2O. We associated this transition with the conversion of the tetrahedral cobalt to octahedral cobalt.

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Section: Introductionmentioning

confidence: 99%

Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

et al. 2021

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“…When these new-emerging MOFs have been documented as SCs electrodes, some have also been reported to achieve good electrochemical results. [108,[127][128][129][130][131]…”

Section: Bdc-or Btc-based Co(ni)-based Mofsmentioning

confidence: 99%

Metal–Organic Frameworks Constructed from Iron‐Series Elements for Supercapacitors

2021

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Iron‐series (Fe, Co, and Ni) containing metal–organic frameworks (MOFs) have gained great concern in supercapacitors (SCs) because of their tailorable architectures, multiple redox‐active sites, and intriguing properties. Given the importance of porosities in MOFs for charge transmission, an essential assessment of their designs, preparation methods, and engineering technologies is strongly required to further explore and optimize SCs. Through empowering conductive backbones and redox‐active centers, iron‐series containing MOF‐based electrodes have made outstanding achievements recently. This review aims to summarize these core reports on iron‐series containing MOFs. Correspondingly, the design strategy, the reason for compositing, the strategy of introducing heteroatoms, and the current divergences on structural alteration mechanisms are discussed. Potential bottleneck issues and coping strategies are also perspectively discussed to guide future optimization.

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“…For SCs based on monometallic organic compounds, cobalt is the most commonly used metal in the first transition metal series 25,27,50,67,69,72,73,97‐134 . Summarized in Tables 3 and 4 are the electrode and SC performances of cobalt‐organic compounds and their composites ( 12 ‐ 92 ).…”

Section: Monometallic Metal‐organic Compounds and Their Compositesmentioning

confidence: 99%

“…Cobalt polycarboxylate MOFs are the most popular cobalt‐organic compounds as electrode materials in SCs 25,27,50,67,72,73,97,99‐116,132 . H 2 BDC (Figure 4A) is one of the most typical polycarboxylate ligands and has been widely used to fabricate SC electrodes based on Co‐MOFs and their composites ( 13 ‐ 16 , 18 , 19 , 25 ).…”

Section: Monometallic Metal‐organic Compounds and Their Compositesmentioning

confidence: 99%

“…A 2D layered Co‐MOF ( 24 ) with H 2 F 4 BDC (Figure 4A) ligand reported by Liu and coworkers reached a high C g value of 2474 F g −1 72 . Dong and coworkers synthesized five Co‐MOFs ( 26 ‐ 29 ) based on 3,6‐bis(benzimidazol‐1‐yl)pyridazine and different polycarboxylate ligands by changing the reaction conditions and studied their molecular structures and electrochemical behaviors 105 . Wang and coworkers reported another Co‐MOF with H 3 TATB (Figure 4A) ligand and found that the electrode with nanorod Co‐MOF ( 50 ) could deliver a higher C g (2405 F g −1 ) than that of the bulk crystal state ( 49 , 323 F g −1 ) 114 .…”

Section: Monometallic Metal‐organic Compounds and Their Compositesmentioning

confidence: 99%

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Supercapacitor electrodes based on metal‐organic compounds from the first transition metal series

Chen

Xie

et al. 2021

EcoMat

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Metal‐organic compounds, including molecular complexes and coordination polymers, have attracted much attention as electrode materials in supercapacitors owing to their large surface area, high porosity, tailorable pore size, controllable structure, good electrochemical reversibility, and abundant active sites. Among the variety of metal‐organic compounds exhibiting desired supercapacitor performances (high specific capacitance, long cycling life, high energy density, and power density), those with metals in the first transition metal series are the most studied due to their rich covalent states, light atom weight, environmental‐friendliness, non‐toxicity, and low cost. In this review, the recent reports on the metal‐organic compounds of the first transition metal series as electrode materials in supercapacitors are summarized and their electrode and device performances are discussed in terms of different metal elements and typical multidentate ligands. Moreover, the current challenges, design strategies, future opportunities and further research directions are also highlighted for metal‐organic compounds in the field of supercapacitors.

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Cobalt MOFs base on benzimidazol and varied carboxylate ligands with higher capacitance for supercapacitors and magnetic properties

Cited by 11 publications

References 57 publications

Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

Metal–Organic Frameworks Constructed from Iron‐Series Elements for Supercapacitors

Supercapacitor electrodes based on metal‐organic compounds from the first transition metal series

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