Construction of hierarchical nanoparticle-assembled magnesium‑nickel‑cobalt oxides@carbon composites nanorods for high-performance supercapacitor DOI

Guixin Man,

Feng Zhang, Na Li

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 120, P. 116501 - 116501

Published: April 3, 2025

Language: Английский

Bimetallic Sulfides with Vacancy Modulation Exhibit Enhanced Electrochemical Performance DOI
Jiawei Guo, Hongbo Zhao, Zhongwei Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 10, 2024

Abstract Transition bimetallic sulfides show significant promise for energy‐related applications because of their plentiful active sites and synergistic redox activity. However, limited pore size low‐conductivity issues hinder application. The structure NiCo–S with rich sulfur vacancies is first predicted by density functional theory (DFT) calculations. Different vacancy concentrations are modeled DFT calculations, the results confirm that enhance conductivity electrode material more beneficial adsorption OH * species. It verified differential charge electric field formed on surface can lead to strong interfacial interactions electron aggregation, which promotes electron/ion transfer kinetics. Furthermore, nanosheets prepared carbon cloth enriched different (denoted as NiCo‐Sv‐x, x representing concentration vacancies) sulfide etching NiCo‐MOF annealing under H 2 /Ar atmosphere. NiCo‐Sv‐x electrodes obtained applied cathode supercapacitors anode oxygen evolution reaction. Through combining experimental theoretical analysis, effect defect engineering electrochemical performance materials further confirmed.

Language: Английский

Citations

39
Rosette-like (Ni,Co)Se2@Nb2CTx MXene heterostructure with abundant Se vacancies for high-performance flexible supercapacitor electrodes DOI

Baolei Shen,

Xianjin Hu, Haitao Ren

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149440 - 149440

Published: Feb. 7, 2024

Language: Английский

Citations

36
In-situ growth transformation and oxygen vacancy synergistic modulation of the electronic structure of NiCo-LDH enables high-performance hybrid supercapacitors DOI
Xiaohong Chen, Ziyun Zhang,

Shaobo Zhou

et al.

Applied Energy, Journal Year: 2024, Volume and Issue: 371, P. 123670 - 123670

Published: June 14, 2024

Language: Английский

Citations

25
All-functionalized-graphene ribbon films for flexible asymmetric supercapacitors with ultrahigh energy and power densities DOI
Qiushi Miao, Kehan Wu, Lizhi Sheng

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150114 - 150114

Published: March 5, 2024

Language: Английский

Citations

17
A self-supporting multi-component collaborative structure for enhancing interface electron transfer in hybrid supercapacitor DOI
Rong Zheng,

Huachen Lin,

Jinrui Ding

et al.

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 75, P. 109565 - 109565

Published: Nov. 11, 2023

Language: Английский

Citations

27
Facile synthesis of bead-chain structured MWCNTs@CeO2 with oxygen vacancies-rich for promoting electrochemical energy storage DOI
Xiaoman Cao, J. Chen, Xinrui Zhao

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 479, P. 147663 - 147663

Published: Nov. 25, 2023

Language: Английский

Citations

25
Nanosheet@nanosheet NiZn2O4@NiZn2S4 core-shell mesoporous heterostructure as an electrode material for aqueous hybrid supercapacitors DOI

Xiaoqin Min,

Wan-nai-yi Liu,

Bo Wen

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 81, P. 110410 - 110410

Published: Jan. 9, 2024

Language: Английский

Citations

11
Preparation of PEDOT/Ti3C2Tx/Co3S2 composite for quasi−solid−state hybrid supercapacitor with enhanced electrochemical performance DOI
Xuguang Wang,

Abdukeyum Abdurexit,

Ruxangul Jamal

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 980, P. 173609 - 173609

Published: Jan. 26, 2024

Language: Английский

Citations

11
Nanoflower-like NiCo2O4 Composite Graphene Oxide as a Bifunctional Catalyst for Zinc–Air Battery Cathode DOI

Lixiang Fu,

Yifan Yao,

Jingling Ma

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(13), P. 6990 - 7000

Published: March 21, 2024

Developing efficient bifunctional catalysts for nonprecious metal-based oxygen reduction (ORR) and evolution (OER) is crucial to enhance the practical application of zinc–air batteries. The study harnessed electrostatic forces anchor nanoflower-like NiCo2O4 onto graphene oxide, mitigating poor inherent conductivity in as a transition metal oxide preventing excessive agglomeration structures during catalysis. Consequently, resulting composite, NiCo2O4-GO/C, exhibited notably superior ORR OER catalytic performance compared pure NiCo2O4. Notably, it excelled activity relative precious RuO2. As catalyst OER, NiCo2O4-GO/C displayed potential difference 0.88 V between half-wave at 10 mA·cm–2, significantly lower than 1.08 observed flower-like comparable by Pt/C + NiCo2O4-GO/C-based battery demonstrated discharge capacity 817.3 mA h·g–1, surpassing that Moreover, charge–discharge cycling tests indicated stability its counterparts.

Language: Английский

Citations

11
Surface oxygen engineered ZnCo2O4 planar hybrid supercapacitor electrode for high energy applications DOI

Muthukumar Ganesan,

Srinivasan Alagar, Vivek Bagchi

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 98, P. 112954 - 112954

Published: July 25, 2024

Language: Английский

Citations

11