Ternary ZnCo2O4 Nanowire Electrode Materials for High-Capacitance and Flexible Electrochemical Capacitors

Article Materials Science, Multidisciplinary

High-performance flexible hybrid capacitors by regulating NiCoMoS@Mo0.75-LDH electrode structure

Yuchen Sun et al.

Summary: In supercapacitors, the synthesis of MoO42--intercalated LDH heterostructures can enhance the specific capacitance and energy density, potentially enabling their application in future energy storage devices.

MATERIALS RESEARCH BULLETIN (2023)

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Article Chemistry, Multidisciplinary

Flexible CuCo2O4 @Ni-Co-S hybrids as electrode materials for high-performance energy storage devices

Xiaowei Wang et al.

Summary: Rational design of electrode materials with core-shell nanostructures is important for improving the electrochemical performance of supercapacitors. In this study, several CuCo2O4 @Ni-Co-S composite electrodes were prepared, which showed high electrochemical activity as a result of their three-dimensional structure. The heterostructured materials exhibited a specific capacitance of 1048 C/g at 1 A/g, and maintained 75.6% of their initial capacity after 2000 cycles at 10 A/g. With a power density of 2280 W/kg, the device achieved an energy density of 79.2 Wh/kg.

CHINESE CHEMICAL LETTERS (2023)

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Article Chemistry, Multidisciplinary

Defect engineering of vanadium-based electrode materials for zinc ion battery

Ying Liu et al.

Summary: With the rapid development of sustainable energy sources, aqueous zinc-ion batteries (AZIBs) have emerged as a highly promising energy storage technology. The construction of suitable electrode materials is crucial for improving the overall performance of AZIBs. Recent research has focused on the modification of vanadium-based cathodes, exploring defect engineering strategies such as oxygen defects, cation vacancies, and heterogeneous doping. The effects of these defects on the electrochemical performance of electrode materials are discussed, along with future challenges and development directions for V-based cathode materials.

CHINESE CHEMICAL LETTERS (2023)

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Article Chemistry, Multidisciplinary

Optimizing the Oxygen-Catalytic Performance of Zn-Mn-Co Spinel by Regulating the Bond Competition at Octahedral Sites

Zepan Wang et al.

Summary: By partially replacing Co3+ with the more electro-negative Mn3+ ion at the octahedral site, a ternary Zn-Mn-Co spinel oxide is formed, leading to a significant increase in electrocatalytic oxygen reduction/evolution activity. Physical characterization and theoretical calculations show that bond competition plays a crucial role in regulating the cobalt valence state and the electrocatalytic activity. The partial replacement of Co3+ by Mn3+ effectively modulates the adjacent Co-O bond and induces the Jahn-Teller effect, resulting in a change in crystal structure and optimization of the binding strength with reaction intermediates. The Mn-substituted ZnMn1.4Co0.6O4/NCNTs exhibit higher electrocatalytic activity than ZnCo2O4/NCNTs and ZnMn2O4/NCNTs, indicating that the covalency of the Co-O bond determines the oxygen reduction reaction (ORR) activity of spinel ZnCo2O4. This study introduces the competition between adjacent Co-O and Mn-O bonds through the B-Oh-O-B-Oh edge-sharing geometry, demonstrating that ion substitution at octahedral sites with less electronegative cations can effectively enhance the electrocatalytic performance of cobalt-based spinel oxides.

ADVANCED FUNCTIONAL MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Triflylpyridinium Enables Rapid and Scalable Controlled Reduction of Carboxylic Acids to Aldehydes using Pinacolborane

Du Chen et al.

Summary: Developing new and efficient methods for the controlled conversion of carboxylic acids to aldehydes is crucial. In this study, a rapid, modular and scalable method using pinacolborane at ambient temperature was developed. The reduction of acylpyridinium by HBpin enables the direct synthesis of aldehydes from carboxylic acids, with lower activation energy compared to the product aldehyde. The synthetic advantage of this protocol is demonstrated through scalable synthesis of aldehyde via continuous flow process.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

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Article Green & Sustainable Science & Technology

Constructing high-capacitance electrochemical capacitors through the introduction of V ions into MoS2/Ni3S2 nanosheets

Jingxuan Liu et al.

Summary: Designing high energy density electrode materials is crucial for improving the overall performance of supercapacitors. In this work, V-doped MoS2/Ni3S2 nanosheets grown on nickel foam by a convenient hydrothermal route were reported. The obtained 0.07V-MoS2/Ni3S2 composites deliver a specific capacitance of 960C/g at 1 A/g, thanks to their large specific surface area and rapid ion migration rate. These composites still maintain 71.65% of the initial capacity after 10,000 cycles. Several asymmetric supercapacitors assembled using these cathode materials achieve an energy density of 75 Wh/kg at a power density of 2700 W/kg. This work provides a feasible strategy for constructing high-performance transition metal compound electrode materials in future flexible energy storage electronics.

MATERIALS TODAY SUSTAINABILITY (2023)

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Article Chemistry, Multidisciplinary

Constructing High Efficiency CoZnxMn2-xO4 Electrocatalyst by Regulating the Electronic Structure and Surface Reconstruction

Depeng Zhao et al.

Summary: Several vacancy-dependent CoZnxMn2-xO4 catalysts were prepared by tailoring the concentration of Zn ions. The superior electrocatalytic performance can be attributed to the formations of active species and oxygen vacancies. These catalysts exhibit comparable performance to noble metal catalysts IrO2 and Pt/C.

SMALL (2022)

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Article Materials Science, Ceramics

Design and fabrication of bimetallic oxide nanonest-like structure/carbon cloth composite electrode for supercapacitors

Muhammad Sufyan Javed et al.

Summary: A ZnCo2O4 nanonest-like structure with high mass loading was successfully fabricated on a carbon cloth substrate, showing excellent electrochemical performance including high specific capacitance, cycling retention, and Coulombic efficiency. The electrode also exhibited high capacitive storage properties and potential application prospects in supercapacitors for future endowers.

CERAMICS INTERNATIONAL (2021)

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Article Chemistry, Physical

Flexible mixed metal oxide hollow spheres/RGO hybrid lamellar films for high performance supercapacitors

Ming Yan et al.

Summary: The mixed metal oxide hollow spheres/RGO hybrid lamellar films exhibit superior electrochemical performances and remarkable cycling retention, enabling their use in asymmetric supercapacitors and powering a white LED in an experiment.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

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Article Energy & Fuels

3D flower-like oxygen-deficient non-stoichiometry zinc cobaltite for high performance hybrid supercapacitors

Periyasamy Sivakumar et al.

Summary: The study investigates the utilization of 3D oxygen-deficient flower-like non-stoichiometry zinc cobaltite for hybrid supercapacitors, demonstrating superior electrochemical performance and cycle stability. The non-stoichiometry and hierarchical porous structure of the material contribute to efficient utilization of electrochemical active sites and rapid ion/electron transportation, leading to high specific capacitance and maximum energy/power densities in the hybrid supercapacitor cells.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2021)

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Article Chemistry, Multidisciplinary

A Novel Strategy of Multi-element Nanocomposite Synthesis for High Performance ZnO-CoSe2 Supercapacitor Material Development

Xin Chen et al.

Summary: The study introduces a novel one-step selective reaction strategy for the fabrication of ZnO-CoSe2 (ZOCS) nano-spherical composites as supercapacitor materials. These composites exhibit high specific capacitance, good rate performance, and excellent cycle stability, making them suitable for assembling asymmetric supercapacitors with superior energy density and cycle stability. This work not only demonstrates the potential of facilely prepared ZnO-CoSe2 composite electrode material, but also presents a new strategy for low-cost and high-performance multi-element composite material development.

CHINESE JOURNAL OF CHEMISTRY (2021)

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Article Materials Science, Multidisciplinary

Facile synthesis of multilayer graphene nanoplatelets/ZnCo2O4 microspheres with enhanced performance for asymmetric supercapacitors

Bin Huang et al.

Summary: The multilayer graphene nanoplatelets/ZnCo2O4 microspheres electrode shows enhanced specific capacitance and cycling stability, achieving an energy density of 17.78 Wh kg(-1). The innovative addition of multilayer graphene nanoplatelets improves conductivity and structure stability, providing enlightenment for other composite materials in supercapacitors.

MATERIALS LETTERS (2021)

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Review Chemistry, Applied

Review of vanadium-based electrode materials for rechargeable aqueous zinc ion batteries

Ying Liu et al.

Summary: Vanadium-based compounds are considered suitable cathode candidates for ZIBs with various structures and large layer spacings. This review emphasizes on the electrode design strategy, electrochemical performances, and energy storage mechanisms while pointing out the limitations and future prospects of vanadium-based materials.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Chemistry, Physical

PANI/g-C3N4 composite over ZnCo2O4/Ni-foam, a bi-functional electrode as a supercapacitor and electrochemical glucose sensor

Sanath Kumar et al.

Summary: In this study, a hybrid ternary composite of zinc cobaltite, conductive polyaniline, and graphitic carbon nitride was successfully synthesized for applications in supercapacitors and electrochemical glucose sensing. The materials were thoroughly characterized, and their electrochemical properties were investigated, demonstrating great potential for practical applications.

SUSTAINABLE ENERGY & FUELS (2021)

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Article Nanoscience & Nanotechnology

Ni Foam Substrates Modified with a ZnCo2O4 Nanowire-Coated Ni(OH)(2) Nanosheet Electrode for Hybrid Capacitors and Electrocatalysts

Meizhen Dai et al.

Summary: Several types of ZnCo2O4@Ni(OH)(2) nanoarchitectures were successfully prepared using a simple two-step hydrothermal strategy in this study. The ZnCo2O4@Ni(OH)(2)-2.0 sample-based hybrid capacitor exhibited high capacitance at 1 A g(-1). Furthermore, the same sample demonstrated excellent cycling stability and electrocatalytic performance, making it suitable for future capacitor and electrocatalyst applications.

ACS APPLIED NANO MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Surface Reorganization on Electrochemically-Induced Zn-Ni-Co Spinel Oxides for Enhanced Oxygen Electrocatalysis

Xiao-Tong Wang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

Mesoporous ZnCo2O4-CNT microflowers as bifunctional material for supercapacitive and lithium energy storage

Lin Wu et al.

APPLIED SURFACE SCIENCE (2020)

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Article Electrochemistry

Reagents assisted ZnCo2O4 nanomaterial for supercapacitor application

Yedluri Anil Kumar et al.

ELECTROCHIMICA ACTA (2020)

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Article Energy & Fuels

Self-Sacrificing Template-Derived Hollow-Structured NiCo2S4 Spheres with Highly Efficient Supercapacitance Performance

Yansong Gai et al.

ENERGY & FUELS (2020)

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Article Chemistry, Physical

Realizing Superior Electrochemical Performance of Asymmetric Capacitors through Tailoring Electrode Architectures

Hengqi Liu et al.

ACS APPLIED ENERGY MATERIALS (2020)

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Article Energy & Fuels

Insights to pseudocapacitive charge storage of binary metal-oxide nanobelts decorated activated carbon cloth for highly-flexible hybrid-supercapacitors

Muhammad Sufyan Javed et al.

JOURNAL OF ENERGY STORAGE (2020)

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Article Chemistry, Multidisciplinary

Supercapacitor and non-enzymatic biosensor application of an Mn2O3/NiCo2O4composite material

A. Juliet Christina Mary et al.

NEW JOURNAL OF CHEMISTRY (2020)

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Article Chemistry, Physical

Novel fabrication of hollow and spinous NiCo2S4 nanotubes templated by natural silk for all-solid-state asymmetric supercapacitors

Weiguo Huang et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

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Article Chemistry, Physical

Reduced ZnCo2O4@NiMoO4.H2O heterostructure electrodes with modulating oxygen vacancies for enhanced aqueous asymmetric supercapacitors

Chao Chen et al.

JOURNAL OF POWER SOURCES (2019)

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Article Chemistry, Physical

3D self-branched zinc-cobalt Oxide@N-doped carbon hollow nanowall arrays for high-performance asymmetric supercapacitors and oxygen electrocatalysis

Dezhi Kong et al.

ENERGY STORAGE MATERIALS (2019)

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Article Chemistry, Physical

Voltage Generation in Optically Sensitive Supercapacitor for Enhanced Performance

Buddha Deka Boruah et al.

ACS APPLIED ENERGY MATERIALS (2019)

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Article Chemistry, Inorganic & Nuclear

Toward a high performance asymmetric hybrid capacitor by electrode optimization

Ying Liu et al.

INORGANIC CHEMISTRY FRONTIERS (2019)

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Article Chemistry, Multidisciplinary

In situ growth of ZIF-8-derived ternary ZnO/ZnCo2O4/NiO for high performance asymmetric supercapacitors

Chengxiang Huang et al.

NANOSCALE (2019)

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Article Chemistry, Multidisciplinary

In situ construction of dual-morphology ZnCo2O4 for high-performance asymmetric supercapacitors

Ziwen Wang et al.

NANOSCALE ADVANCES (2019)

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Article Engineering, Environmental

Two-dimensional porous ZnCo2O4 thin sheets assembled by 3D nanoflake array with enhanced performance for aqueous asymmetric supercapacitor

Jikui Zhu et al.

CHEMICAL ENGINEERING JOURNAL (2018)

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Article Chemistry, Inorganic & Nuclear

A metal-organic framework derived hierarchical nickel-cobalt sulfide nanosheet array on Ni foam with enhanced electrochemical performance for supercapacitors

Kai Tao et al.

DALTON TRANSACTIONS (2018)

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Article Chemistry, Inorganic & Nuclear

The synthesis of hierarchical ZnCo2O4@MnO2 core-shell nanosheet arrays on Ni foam for high-performance all-solid-state asymmetric supercapacitors

Deyang Yu et al.

INORGANIC CHEMISTRY FRONTIERS (2018)

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Article Materials Science, Multidisciplinary

Hierarchical mesoporous Co3O4@ZnCo2O4 hybrid nanowire arrays supported on Ni foam for high-performance asymmetric supercapacitors

Menggang Li et al.

SCIENCE CHINA-MATERIALS (2018)

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Article Chemistry, Inorganic & Nuclear

Facile ordered ZnCo2O4@MnO2 nanosheet arrays for superior-performance supercapacitor electrode

Liyang Lin et al.

SOLID STATE SCIENCES (2018)

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Article Chemistry, Multidisciplinary

Three-Dimensional Hierarchically Mesoporous ZnCo2O4 Nanowires Grown on Graphene/Sponge Foam for High-Performance, Flexible, All-Solid-State Supercapacitors

In Kyu Moon et al.

CHEMISTRY-A EUROPEAN JOURNAL (2017)

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Article Chemistry, Physical

Facile one-pot synthesis of NiCo2O4 hollow spheres with controllable number of shells for high-performance supercapacitors

Jing Guo et al.

NANO RESEARCH (2017)

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Article Chemistry, Physical

All-solid-state hybrid supercapacitors based on ZnCo2O4 nanowire arrays and carbon nanorod electrode materials

Jingxin Zhao et al.

CARBON (2017)

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A Hybrid Electrode of Co3O4@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors

Xiaojun Yang et al.

NANO-MICRO LETTERS (2016)

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A Hybrid Electrode of Co3O4@PPy Core/Shell Nanosheet Arrays for High-Performance Supercapacitors

Xiaojun Yang et al.

NANO-MICRO LETTERS (2016)

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Article Nanoscience & Nanotechnology

General Synthesis of Porous Mixed Metal Oxide Hollow Spheres with Enhanced Supercapacitive Properties

Qinghong Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Article Chemistry, Multidisciplinary

ZnCo2O4 Quantum Dots Anchored on Nitrogen-Doped Carbon Nanotubes as Reversible Oxygen Reduction/Evolution Electrocatalysts

Zhao-Qing Liu et al.

ADVANCED MATERIALS (2016)

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Tailoring cobalt doped zinc oxide nanocrystals with high capacitance activity: factors affecting structure and surface morphology

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RSC ADVANCES (2012)

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Ternary ZnCo2O4 Nanowire Electrode Materials for High-Capacitance and Flexible Electrochemical Capacitors

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