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Title: Supercapacitor electrodes based on metal-organic compounds from the first transition metal series
Authors: Chen, BL 
Xu, LL 
Xie, ZY
Wong, WY 
Issue Date: Jun-2021
Source: EcoMat, June 2021, v. 3, no. 3, e12106
Abstract: Metal-organic compounds, including molecular complexes and coordination polymers, have attracted much attention as electrode materials in super-capacitors 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 super-capacitor 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.
Keywords: Electrochemistry
First transition metal series
Metal-organic compounds
Metal-organic frameworks
Supercapacitors
Publisher: John Wiley & Sons
Journal: EcoMat 
EISSN: 2567-3173
DOI: 10.1002/eom2.12106
Rights: © 2021 The Authors. EcoMat published by The Hong Kong Polytechnic University and John Wiley & Sons Australia, Ltd.
This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, providedthe original work is properly cited.
The following publication Chen B, Xu L, Xie Z,Wong W-Y. Supercapacitor electrodes based onmetal-organic compounds from the first transitionmetal series. EcoMat. 2021;3:e12106 is available at https://doi.org/10.1002/eom2.1210654
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