Study of pseudocapacitive contribution to superior energy storage of 3D heterostructure CoWO4/Co3O4 nanocone arrays

Zhang, Mingchang; Fan, Huiqing; Ren, Xiaoyong; Zhao, Nan; Peng, Haijun; Wang, Chao; Wu, Xiaobo; Dong, Guangzhi; Long, Changbai; Wang, Weijia; Gao, Yong; Ma, Longtao; Wu, Peng; Li, Hua; Jiang, Xinbiao

doi:10.1016/j.jpowsour.2019.02.041

Cited by 129 publications

(32 citation statements)

References 48 publications

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“…As per the power's law equation: i = aν b , where a and b are adjustable parameters and ν is the applied scan rate, respectively. For this analysis, the logarithm was applied to the both ends of the formula and it can be mentioned as [42][43][44]:…”

Section: Electrochemical Testing and Analysismentioning

confidence: 99%

Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries

et al. 2020

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Designing rationally combined metal–organic frameworks (MOFs) with multifunctional nanogeometries is of significant research interest to enable the electrochemical properties in advanced energy storage devices. Herein, we explored a new class of binder-free dual-layered Ni–Co–Mn-based MOFs (NCM-based MOFs) with three-dimensional (3D)-on-2D nanoarchitectures through a polarity-induced solution-phase method for high-performance supercapatteries. The hierarchical NCM-based MOFs having grown on nickel foam exhibit a battery-type charge storage mechanism with superior areal capacity (1311.4 μAh cm−2 at 5 mA cm−2), good rate capability (61.8%; 811.67 μAh cm−2 at 50 mA cm−2), and an excellent cycling durability. The superior charge storage properties are ascribed to the synergistic features, higher accessible active sites of dual-layered nanogeometries, and exalted redox chemistry of multi metallic guest species, respectively. The bilayered NCM-based MOFs are further employed as a battery-type electrode for the fabrication of supercapattery paradigm with biomass-derived nitrogen/oxygen doped porous carbon as a negative electrode, which demonstrates excellent capacity of 1.6 mAh cm−2 along with high energy and power densities of 1.21 mWh cm−2 and 32.49 mW cm−2, respectively. Following, the MOF-based supercapattery was further assembled with a renewable solar power harvester to use as a self-charging station for various portable electronic applications.

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Section: Electrochemical Testing and Analysismentioning

confidence: 99%

Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries

et al. 2020

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“…It exhibited an excellent Cs of 1330 F•g −1 at 3 mA•cm −2 and a capacity retention of about 100.7% over 5000 cycles. Further, tube-like yolk-shell Co 3 O 4 /NiMoO 4 electrode material was synthesized via the two-step method [151], which consisted of ultrathin porous shell of NiMoO 4 and Co 3 O 4 fiber (Figure 11a Fabrication of 3D heterostructure CoWO4/Co3O4//porous carbon SC device via the microwave hydrothermal method [152].…”

Section: Co 3 O 4 /Ternary Metal Oxide Compositesmentioning

confidence: 99%

Recent Advance in Co3O4 and Co3O4-Containing Electrode Materials for High-Performance Supercapacitors

Wang

Meng

et al. 2020

Molecules

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Among the popular electrochemical energy storage devices, supercapacitors (SCs) have attracted much attention due to their long cycle life, fast charge and discharge, safety, and reliability. Transition metal oxides are one of the most widely used electrode materials in SCs because of the high specific capacitance. Among various transition metal oxides, Co3O4 and related composites are widely reported in SCs electrodes. In this review, we introduce the synthetic methods of Co3O4, including the hydrothermal/solvothermal method, sol–gel method, thermal decomposition, chemical precipitation, electrodeposition, chemical bath deposition, and the template method. The recent progress of Co3O4-containing electrode materials is summarized in detail, involving Co3O4/carbon, Co3O4/conducting polymer, and Co3O4/metal compound composites. Finally, the current challenges and outlook of Co3O4 and Co3O4-containing composites are put forward.

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“…A number of carbon particles have been investigated in the past, such as carbon nanotubes, carbon spheres/dots [1][2][3], and graphene oxide (GO) [4,5]. Among them, carbonaceous nanostructures have exhibited some unique properties such as good stability (< 200°C), porous tubular walls, superior lubricating properties, easily dispersing in water, and biocompatibility, as well as readily hybridized with metals (e.g., Au, Ag) and/or metal oxides for generating hybrid functional nanostructures [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Development of a General Fabrication Strategy for Carbonaceous Noble Metal Nanocomposites with Photothermal Property

Zhu

Jiang

2020

Nanoscale Res Lett

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This study demonstrates a simple hydrothermal method while can be generalized for controllable synthesis of noble metallic carbonaceous nanostructures (e.g., Au@C, Ag@C) under mild conditions (180-200°C), which also provides a unique approach for fabricating hollow carbonaceous structures by removal of cores (e.g., silver) via a redox etching process. The microstructure and composition of the as-achieved nanoparticles have been characterized using various microscopic and spectroscopic techniques. Cetyltrimethylammonium bromide (CTAB), serving as a surfactant in the reaction system, plays a key role in the formation of Ag@C, Au@C nanocables, and their corresponding hollow carbonaceous nanotubes in this work. The dynamic growth and formation mechanism of carbonaceous nanostructures was discussed in detail. And finally, laser-induced photothermal property of Au@C nanocomposites was examined. The results may be useful for designing and constructing carbonaceous metal(s) or metal oxide(s) nanostructures with potential applications in the areas of electrochemical catalysis, energy storage, adsorbents, and biomedicine.

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Study of pseudocapacitive contribution to superior energy storage of 3D heterostructure CoWO4/Co3O4 nanocone arrays

Cited by 129 publications

References 48 publications

Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries

Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries

Recent Advance in Co3O4 and Co3O4-Containing Electrode Materials for High-Performance Supercapacitors

Development of a General Fabrication Strategy for Carbonaceous Noble Metal Nanocomposites with Photothermal Property

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