High-performance asymmetric Mn(OH)2//Fe2O3 supercapacitor achieved by enhancing and matching respective properties of cathode and anode materials

Li, Jien; Luo, Shuang; Zhang, Bin; Lu, Junlin; Liu, Wenlin; Zeng, Qixuan; Wan, Jing; Han, Xiangyu; Hu, Chenguo

doi:10.1016/j.nanoen.2020.105410

Cited by 103 publications

(40 citation statements)

References 50 publications

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“…Nevertheless, the resistance values of the two samples after cycling were higher than before, which may be due to the gradual powdering of the samples, resulting in a reduction in their electroactive surface area. 47 These results can intuitively explain why the capacity decreased after cycling. Thus, all the results indicate that the introduction of d-TC nanosheets can accelerate the transfer of electrons on the surface and redox kinetics as a conductive matrix, exhibiting outstanding electrochemical performances.…”

Section: Resultsmentioning

confidence: 89%

Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors

Wang

Guo

et al. 2022

New J. Chem.

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Section: Resultsmentioning

confidence: 89%

Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors

Wang

Guo

et al. 2022

New J. Chem.

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“…R s is the intersection on the real axis at high frequency according to the electrode and electrolyte resistance and R ct is the diameter of the semicircle formed by the intersection of the plot and the real axis when referring to the load transfer resistance. At the lower frequency region, the diameter of the semicircle formed by the curve represents the internal resistance of the charge transfer (R ct ) [38]. W 0 is the Warburg impedance corresponding to semi-finite diffusion.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Pigłowska

Kurc

Rymaniak

2021

Waste Biomass Valor

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The main aim of this research is the examination of the physicochemical properties and their impact on the electrochemical activity of carbon materials obtained from the starch of different botanical origin (SCs). The obtained materials are compared to graphene nanoplatelets (GNPs) of different particle sizes (5 and 25 µm) applied as an anode active material for high-performance lithium-ion cells. SCs were obtained via thermal carbonization and this process enables an obtainment of better sorption properties compared to GNPs. The excellent electrochemical properties are mainly attributed to the good DLi+ (3.03 × 10−13–7.64 × 10−11 cm2 s−1 for SCs and 7.60 × 10−13–5.42 × 10−12 cm2 s−1 for GNPs) and relatively small resistances (EIS). However, the primary focus is on the specific capacity and cyclability. The capacity retentions of CSC cycled at 1 mA g−1, 10 mA g−1, 50 mA g−1, 1 mA g−1 for 50 cycles are 98%, 99%, 96%, 94% with specific capacities equal to 820, 800, 790, 1000 mAh g−1, respectively. The 5GNPs and 25GNPs may present a much smaller reversible capacity of 650, 600 mAh g−1 at 10 mA g−1. The thermal modification process of starches is simple, safe and widely applied, providing new paths for rational engineering of anode materials for LIBs. Moreover, the applied materials are easily available worldwide and are promising in the well-known Green Chemistry aspect making the cells more biodegradable. Graphic Abstract

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“…As one of the most promising energy storage systems, supercapacitors have been widely used in many fields, from portable consumer electronics to computer memory backup systems for new energy vehicles due to their pulsed power supply and long cycle life. [1] In the past few decades, researchers have been working on pseudocapacitive materials, such as metal hydroxides [2,3] and metal oxides, [4,5] which produce higher specific capacitance and higher energy density. In recent years, Fe, Co, and Ni materials have attracted much attention due to their excellent electrochemical reversibility, cycle life, and high capacitance.…”

Section: Introductionmentioning

confidence: 99%

Study on the One‐Step Synthesis of Oxides by Cationic Membrane Electrolysis of Ni and Co Chloride

Lin

Zhang

et al. 2022

ChemistrySelect

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This contribution investigates whether cobalt(II) and nickel(II) chlorides can, in one step, be converted to their corresponding oxides in aqueous solutions by electrodeposition. We use the chemical precipitation method as a blank experiment, and the electrodeposition is carried out directly in a self-made electrolytic cell with CoCl 2 ⋅ 6H 2 O or NiCl 2 ⋅ 6H 2 O as raw material. The crystal structure, morphology, and specific surface area of the product are characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), thermog-ravimetric analysis (TG), and Brunauer-Emmett-Teller (BET) measurements. The results show that the existence of an electric field has an obvious influence on the performance of the product. CoCl 2 can realize the one-step preparation of Co 3 O 4 in an aqueous solution, but the product prepared with NiCl 2 as the raw material is Ni(OH) 2 , which needs to be further calcined to obtain NiO. Therefore, it is necessary to further study the prerequisites for the one-step preparation of oxides from metal chloride in an aqueous solution.

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High-performance asymmetric Mn(OH)2//Fe2O3 supercapacitor achieved by enhancing and matching respective properties of cathode and anode materials

Cited by 103 publications

References 50 publications

Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors

Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Study on the One‐Step Synthesis of Oxides by Cationic Membrane Electrolysis of Ni and Co Chloride

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High-performance asymmetric Mn(OH)2//Fe2O3 supercapacitor achieved by enhancing and matching respective properties of cathode and anode materials

Cited by 103 publications

References 50 publications

Vertically aligned ZnCo2O4 nanoplates on Ti3C2 for high-efficiency hybrid supercapacitors

Vertically aligned ZnCo2O4 nanoplates on Ti3C2 for high-efficiency hybrid supercapacitors

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Study on the One‐Step Synthesis of Oxides by Cationic Membrane Electrolysis of Ni and Co Chloride

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Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors

Vertically aligned ZnCo₂O₄ nanoplates on Ti₃C₂ for high-efficiency hybrid supercapacitors