4.7 Article

Precisely controllable oxygen vacancy-manufactured Ov-Co3O4@PPy for high energy density supercapacitor

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Environmental

Electrochemical activation induced phase and structure reconstruction to reveal cobalt sulfide intrinsic energy storage capacity

Wang Yang et al.

Summary: Transition metal sulfides, including cobalt sulfide, can be activated through electrochemical processes to enhance their energy storage capacity. In an alkaline environment, cobalt sulfide undergoes necessary activation and exhibits superior performance in energy storage. This activation process is also applicable to other battery-type metal sulfides, indicating its universality.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Materials Science, Coatings & Films

Oxygen-deficient Co3O4 submicron porous sphere films as highly active supsercapacitor electrodes

Zexin Yu et al.

Summary: In this study, Co3O4 films with different oxygen vacancies and particle shapes were used as supercapacitor electrodes, showing that particle shape significantly affects the electrochemical properties. Films with oxygen vacancies exhibited higher specific capacitance, and oxygen vacancies facilitated reaction between hydroxyl and Co3O4, improving electronic conductivity. After post heating treatment, the specific capacitance decreased due to the loss of oxygen vacancies.

SURFACE & COATINGS TECHNOLOGY (2021)

Article Nanoscience & Nanotechnology

Direct Growth of Oxygen Vacancy-Enriched Co3O4 Nanosheets on Carbon Nanotubes for High-Performance Supercapacitors

Xiaoyu Zhang et al.

Summary: This study successfully prepared ultrathin Co3O4 nanosheets with abundant oxygen vacancies on conductive carbon nanotube nanocomposites using a new synthesis method, showing high electrochemical performance and stability. Additionally, this material exhibited good energy density in a two-electrode system.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Physical

Intrinsic defect-rich porous carbon nanosheets synthesized from potassium citrate toward advanced supercapacitors and microwave absorption

Liqiang Hou et al.

Summary: A simple and effective strategy was proposed to fabricate porous carbon nanosheets rich in intrinsic defects in a sealed tube, with rationally organized pore structures and uniformly distributed defects.

CARBON (2021)

Article Chemistry, Physical

Oxygen-deficient and orderly mesoporous cobalt oxide nanospheres for superior lithium storage

Daorui Wang et al.

Summary: A new type of oxygen-deficient cobalt oxide nanospheres with a highly ordered structure has been developed as superior anode materials for lithium-ion batteries. The unique structure and oxygen vacancies promote electron/ion conduction and provide rich active sites for conversion reactions. Experimental results demonstrate that the electrode made of this material exhibits excellent reversible capacity and cycling performance.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Engineering, Environmental

Dual-template endowing N, O co-doped hierarchically porous carbon from potassium citrate with high capacitance and rate capability for supercapacitors

Liqiang Hou et al.

Summary: This study developed a one-pot strategy to synthesize N, O co-doped hierarchically porous carbon nanosheets with large surface area and abundant pseudocapacitive active species. The resulting carbon material showed outstanding specific capacitance and high rate capability in supercapacitors, as well as high energy density in symmetric supercapacitors.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Rational construction of multidimensional oxygen-deficient Co3O4 nanosheet/nanowire arrays as high-performance electrodes for aqueous Zn-ion batteries and asymmetric supercapacitors

Fang Yang et al.

Summary: A surface phosphating Co3O4 electrode material with multidimensional nanostructure and oxygen-deficient has been successfully applied in aqueous Zn-ion batteries and asymmetric supercapacitors, showing outstanding electrochemical performance and cycle stability.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Review Chemistry, Physical

Defect Engineering for Expediting Li-S Chemistry: Strategies, Mechanisms, and Perspectives

Zixiong Shi et al.

Summary: Lithium-sulfur (Li-S) batteries have attracted growing scientific and industrial interest due to their high energy density and low materials costs, with recent research focusing on improving the reaction kinetics of sulfur species through defect engineering. While defect engineering has emerged as a key strategy to enhance polysulfide modulation, there is still a lack of comprehensive overview in this field.

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Physical

Unlocking the Potential of Oxygen-Deficient Copper-Doped Co3O4 Nanocrystals Confined in Carbon as an Advanced Electrode for Flexible Solid-State Supercapacitors

Shude Liu et al.

Summary: Incorporating Cu dopants and O vacancies into Co3O4 nanocrystals confined in a carbon matrix, termed as O-v-Cu-Co3O4@C, helps improve the specific capacity and rate performance of the material. The heterostructured architecture with multifunctional nanogeometries enables high intercomponent synergy, leading to enhanced electrical conductivity and enriched redox chemistry, ultimately resulting in a significantly improved energy density of 64.1 W h kg(-1) at 800 W kg(-1) for asymmetric supercapacitors.

ACS ENERGY LETTERS (2021)

Article Chemistry, Multidisciplinary

Metal-organic framework derived Co3O4/PPy bifunctional electrocatalysts for efficient overall water splitting

Yongli Tong et al.

CHINESE CHEMICAL LETTERS (2020)

Article Chemistry, Physical

Oxygen-deficient 3D-ordered multistage porous interfacial catalysts with enhanced water oxidation performance

Xuemin Wang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Chemistry, Multidisciplinary

Supersonically Sprayed Zn2SnO4/SnO2/CNT Nanocomposites for High-Performance Supercapacitor Electrodes

Edmund Samuel et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

Article Chemistry, Physical

Engineering Catalytic Active Sites on Cobalt Oxide Surface for Enhanced Oxygen Electrocatalysis

Xiaopeng Han et al.

ADVANCED ENERGY MATERIALS (2018)

Article Nanoscience & Nanotechnology

Porous ZnO-Coated Co3O4 Nanorod as a High-Energy-Density Supercapacitor Material

Miao Gao et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

Editorial Material Chemistry, Multidisciplinary

Energy Storage in Nanomaterials - Capacitive Pseudocapacitive, or Battery-like?

Yury Gogotsi et al.

ACS NANO (2018)

Article Chemistry, Physical

A new asymmetric aqueous supercapacitor: Co3O4//Co3O4@polypyrrole

Junjie Xu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2017)

Article Nanoscience & Nanotechnology

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

Xiaojun Yang et al.

NANO-MICRO LETTERS (2016)

Article Nanoscience & Nanotechnology

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

Xiaojun Yang et al.

NANO-MICRO LETTERS (2016)

Article Materials Science, Multidisciplinary

Nanorod structure of Polypyrrole-covered MoO3 for supercapacitors with excellent cycling stability

Xinming Wu et al.

MATERIALS LETTERS (2016)

Article Engineering, Electrical & Electronic

Cobalt oxide (Co3O4)/graphene nanosheets (GNS) composite prepared by novel route for supercapacitor application

A. Nirmalesh Naveen et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2015)

Article Electrochemistry

To Be or Not To Be Pseudocapacitive?

Thierry Brousse et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2015)

Article Materials Science, Multidisciplinary

Hierarchical Co3O4@PPy core/shell nanowire arrays on nickel foam for electrochemical energy storage

Wei Xiong et al.

MATERIALS LETTERS (2015)

Article Chemistry, Multidisciplinary

Mixed Transition-Metal Oxides: Design, Synthesis, and Energy-Related Applications

Changzhou Yuan et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2014)

Editorial Material Multidisciplinary Sciences

Where Do Batteries End and Supercapacitors Begin?

Patrice Simon et al.

SCIENCE (2014)

Article Nanoscience & Nanotechnology

Morphology Controlled Synthesis of Nanoporous Co3O4 Nanostructures and Their Charge Storage Characteristics in Supercapacitors

Kalyanjyoti Deori et al.

ACS APPLIED MATERIALS & INTERFACES (2013)

Article Electrochemistry

CuO/polypyrrole core-shell nanocomposites as anode materials for lithium-ion batteries

Zhigang Yin et al.

ELECTROCHEMISTRY COMMUNICATIONS (2012)

Review Chemistry, Multidisciplinary

A review on exergy comparison of hydrogen production methods from renewable energy sources

Koroneos Christopher et al.

ENERGY & ENVIRONMENTAL SCIENCE (2012)

Article Chemistry, Multidisciplinary

Hierarchical Co3O4 nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Qiu Yang et al.

RSC ADVANCES (2012)

Review Chemistry, Multidisciplinary

Carbon Nanotubes for Photoconversion and Electrical Energy Storage

A. C. Dillon

CHEMICAL REVIEWS (2010)

Article Electrochemistry

Manganese oxide embedded polypyrrole nanocomposites for electrochemical supercapacitor

R. K. Sharma et al.

ELECTROCHIMICA ACTA (2008)