Hierarchical Ni–Co–Mn hydroxide hollow architectures as high-performance electrodes for electrochemical energy storage

Wei, Chengzhen; Cheng, Cheng; Wang, Kaimin; Li, Xiaochong; Xiao, Hecong; Yao, Qiaofei

doi:10.1039/d0ra10377b

Cited by 15 publications

(1 citation statement)

References 47 publications

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“…For example, Wei et al fabricated CNT/Co 3 S 4 @NiCo LDH composites for hybrid supercapacitors [8]. In most instances, hybrid supercapacitors combine a supercapacitor-type electrode (such as carbon materials) with a battery-type electrode (such as transition metal oxides/hydroxides) into a single device [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

et al. 2021

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Ternary layered double hydroxide (LDH) materials have shown promising application in hybrid supercapacitors. However, the low electrical conductivity of LDHs is still a restriction to their performance. Herein, carbon nanotubes/cobalt–nickel–iron LDH (CNTs/CoNiFe-LDH) hybrid material was prepared by a one-step hydrothermal approach for the first time. The presence of CNTs improved the conductivity and surface area of the electrode, leading to an enhanced electrochemical performance. The CNTs/CoNiFe-LDH hybrid electrode exhibited high specific capacity 170.6 mAh g−1 at a current density of 1 A g−1, with a capacity retention of 75% at 10 A g−1. CNTs/CoNiFe-LDH//AC asymmetric supercapacitor (ASC) was also assembled, which had high specific capacitance (96.1 F g−1 at the current density of 1 A g−1), good cycling stability (85.0% after 3000 cycles at 15 A g−1) and high energy density (29.9 W h kg−1 at the power density of 750.5 W kg−1). Therefore, the CNTs/CoNiFe-LDH material could be used for hybrid supercapacitor electrodes.

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Section: Introductionmentioning

confidence: 99%

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

et al. 2021

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Solvothermal Synthesis of Medium‐Entropy Oxide Spheres for Thermocatalytic Conversion of CO₂ to Methanol

Mielniczuk,

Knorpp,

Shukla

et al. 2024

ChemPlusChem

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New chemical compositions and structures for medium‐ and high‐entropy oxides (HEOs) currently represent a promising new avenue in materials research for a wide range of applications including catalysis, energy storage, and ceramics. To speed up further development, synthesis methods for multicationic oxides are needed for controlling features like morphology, porosity, and chemical compositions. In this work, mesoporous spinel oxide spheres with five cations are synthesized using solvothermal synthesis techniques. The targeted chemistry included Co, Al, Fe, and Cr as the first four cations, where the fifth cation was varied by increasing cation radii (Ga, In, Yb, Ho, or Ce). After calcination, all as‐synthesized precursors led to mesoporous oxide spheres with spinel oxide structures. In order to demonstrate an example of applicability for targeting different M3+ cations, the sample containing Co, Al, Fe, Cr, and In was tested in a model reaction of thermocatalytic CO2 hydrogenation and is shown to be active with a preference to methanol formation (58% selectivity, 7.8% conversion at 300 °C). The synthesis of multicationic mesoporous spheres appears to be quite flexible in terms of possible M3+ cations compositions and is a potential material to combine targeted chemistry for applications like catalysis.

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Emerging Pseudocapaciting Materials

Abdullah,

Jiang,

Chen

et al. 2023

Engineering Materials

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Hierarchical Ni–Co–Mn hydroxide hollow architectures as high-performance electrodes for electrochemical energy storage

Abstract: An effective etching method is developed for the synthesis of hierarchical Ni–Co–Mn hydroxide hollow architectures, which exhibit high performance in electrochemical energy storage.

Cited by 15 publications

References 47 publications

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

Solvothermal Synthesis of Medium‐Entropy Oxide Spheres for Thermocatalytic Conversion of CO₂ to Methanol

Emerging Pseudocapaciting Materials

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Hierarchical Ni–Co–Mn hydroxide hollow architectures as high-performance electrodes for electrochemical energy storage

Abstract: An effective etching method is developed for the synthesis of hierarchical Ni–Co–Mn hydroxide hollow architectures, which exhibit high performance in electrochemical energy storage.

Cited by 15 publications

References 47 publications

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor

Solvothermal Synthesis of Medium‐Entropy Oxide Spheres for Thermocatalytic Conversion of CO2 to Methanol

Emerging Pseudocapaciting Materials

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Product

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About

Solvothermal Synthesis of Medium‐Entropy Oxide Spheres for Thermocatalytic Conversion of CO₂ to Methanol