Hollow nickel-cobalt-manganese hydroxide polyhedra via MOF templates for high-performance quasi-solid-state supercapacitor

Du, Yunqiu; Li, Guangyu; Chen, Mengdan; Yang, Xiaohong; Ye, Lin; Xu, Lei; Zhao, Lijun

doi:10.1016/j.cej.2019.122210

Cited by 143 publications

(56 citation statements)

References 67 publications

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“…The assembled CoMnO 2 /N20@PICF-6//Fe 2 O 3 /N20@PICF device delivered a maximum energy density of 60.2 Wh kg −1 at power density of 490 W kg −1 , as shown by Ragone plot ( Figure 7 h). Compared to other devices, these values were higher than other energy storage devices, such as NiCoMn-TH/AEG//CFP-S (23.5 Wh kg −1 at 427 W kg −1 ) [ 40 ], NiCoMn-OH//AC (43.2 Wh kg −1 at 790 W kg −1 ) [ 41 ], CoMn-HW/RGO10//AC (38.3 Wh kg −1 at 8000 W kg −1 ) [ 42 ], CoMn LDH/PPy//MLG (29.6 Wh kg −1 at 500 W kg −1 ) [ 43 ], NCM//AC (23.7 Wh kg −1 at 2625 W kg −1 ) [ 44 ], Ni-Mn LDH/rGO//AC (33.8 Wh kg −1 at 850 W kg −1 ) [ 45 ], and Co/Mn-ZIF//AC (52.5 Wh kg −1 at 1080 W kg −1 ) [ 46 ], as summarized in Table S1 . As a result, the fabricated wire-type ASC device exhibited the excellent electrochemical performance with good electrical conductivity.…”

Section: Resultsmentioning

confidence: 98%

CoMnO2-Decorated Polyimide-Based Carbon Fiber Electrodes for Wire-Type Asymmetric Supercapacitor Applications

et al. 2020

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In this work, we report the carbon fiber-based wire-type asymmetric supercapacitors (ASCs). The highly conductive carbon fibers were prepared by the carbonized and graphitized process using the polyimide (PI) as a carbon fiber precursor. To assemble the ASC device, the CoMnO2-coated and Fe2O3-coated carbon fibers were used as the cathode and the anode materials, respectively. Herein, the nanostructured CoMnO2 were directly deposited onto carbon fibers by a chemical oxidation route without high temperature treatment in presence of ammonium persulfate (APS) as an oxidizing agent. FE-SEM analysis confirmed that the CoMnO2-coated carbon fiber electrode exhibited the porous hierarchical interconnected nanosheet structures, depending on the added amount of APS, and Fe2O3-coated carbon fiber electrode showed a uniform distribution of porous Fe2O3 nanorods over the surface of carbon fibers. The electrochemical properties of the CoMnO2-coated carbon fiber with the concentration of 6 mmol APS presented the enhanced electrochemical activity, probably due to its porous morphologies and good conductivity. Further, to reduce the interfacial contact resistance as well as improve the adhesion between transition metal nanostructures and carbon fibers, the carbon fibers were pre-coated with the Ni layer as a seed layer using an electrochemical deposition method. The fabricated ASC device delivered a specific capacitance of 221 F g−1 at 0.7 A g−1 and good rate capability of 34.8% at 4.9 A g−1. Moreover, the wire-type device displayed the superior energy density of 60.2 Wh kg−1 at a power density of 490 W kg−1 and excellent capacitance retention of 95% up to 3000 charge/discharge cycles.

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Section: Resultsmentioning

confidence: 98%

CoMnO2-Decorated Polyimide-Based Carbon Fiber Electrodes for Wire-Type Asymmetric Supercapacitor Applications

et al. 2020

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“…[ 111 ] The transformation process is usually accompanied by the formation of a hollow structure, which stimulates electron/ion transfer. [ 112 ] A porous hollow NiCoMn‐OH polyhedra was reported using ZIF‐67 as the template and cobalt source. During the etching process, the ligand of ZIF‐67 was replaced by the protons obtained from the hydrolysis of the metal cation, and meanwhile a part of Co 2+ in ZIF‐67 was oxidized to Co 3+ due to the existence of

{NO}_{3}^{-}

and O 2 .…”

Section: Supercapacitor Applicationsmentioning

confidence: 99%

Metal–Organic Frameworks and Their Derived Functional Materials for Supercapacitor Electrode Application

Tian

2021

Adv Energy and Sustain Res

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Metal-organic frameworks (MOFs) are deemed an attractive type of active material during electrochemical reaction processes because of their unique compositional and structural superiority, as well as the dual role as both templates and precursors to derive a large variety of functional materials for energy conversation and storage. Herein, reviewing the recent advances of MOFs and their derived functional materials as electrode materials in supercapacitors, which are classified into pristine MOFs, MOF composites, and MOF-derived functional materials, is focused on. Their synthetic routes and modification strategies are summarized and the relationship between the diversity of the architectures and compositions of MOF-based materials and their electrochemical performance is discussed. In addition, the challenges and opportunities on future research and extensive applications of MOFs and their derived functional materials are offered.

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“…MOFs are a promising candidate for SCs due to their large surface area and adjustable pore size [23,24]. Various studies have been denoted to improve the stability and specific capacitance of MOF materials in the application of supercapacitor [25][26][27]. However, MOFs have two disadvantages: low electrical conductivity and poor chemical/physical stability [28].…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

2021

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In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum substrate using the doctor blade method and conducted an ion-gel electrolyte to produce a symmetrical supercapacitor. The electrochemical properties of the AC/SIFSIX-3-Ni composite-based supercapacitor are evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge tests (GCD). The AC/SIFSIX-3-Ni composite-based supercapacitor showed reasonable capacitive behavior in various electrochemical measurements, including CV, EIS, and GCD. The highest specific capacitance of the AC/SIFSIX-3-Ni composite-based supercapacitor was 129 F g−1 at 20 mV s−1.

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Hollow nickel-cobalt-manganese hydroxide polyhedra via MOF templates for high-performance quasi-solid-state supercapacitor

Cited by 143 publications

References 67 publications

CoMnO2-Decorated Polyimide-Based Carbon Fiber Electrodes for Wire-Type Asymmetric Supercapacitor Applications

CoMnO2-Decorated Polyimide-Based Carbon Fiber Electrodes for Wire-Type Asymmetric Supercapacitor Applications

Metal–Organic Frameworks and Their Derived Functional Materials for Supercapacitor Electrode Application

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

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