Preparation and characterization of three-dimensional Mn–Mo–S composites on rGO/Ni foam for battery-supercapacitor electrode with high-performance

2020 ◽  
Vol 345 ◽  
pp. 136260 ◽  
Author(s):  
Hongsheng Li ◽  
Haicheng Xuan ◽  
Yayu Guan ◽  
Guohong Zhang ◽  
Rui Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Ni Foam ◽  
Supercapacitor Electrode

A one-step, cost-effective green method to in situ fabricate Ni(OH)2 hexagonal platelets on Ni foam as binder-free supercapacitor electrode materials

2015 ◽  
Vol 3 (5) ◽  
pp. 1953-1960 ◽  
Author(s):  
Lingjie Li ◽  
Jing Xu ◽  
Jinglei Lei ◽  
Jie Zhang ◽  
Frank McLarnon ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Cost Effective ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
One Step ◽  
Binder Free ◽  
Supercapacitor Electrode Materials

The Ni(OH)2 hexagonal platelets were in situ fabricated on Ni foam as a binder-free supercapacitor electrode material with high performance and excellent cycling stability by a one-step, cost-effective, green hydrothermal treatment of three-dimensional (3D) Ni foam in a 15 wt% H2O2 aqueous solution.

Hierarchical Ni3S2 nanorod@nanosheet arrays on Ni foam for high-performance supercapacitor

2021 ◽  
Author(s):  
Haibin Sun ◽  
Shuang-Shuang Liang ◽  
Zijun Xu ◽  
Wenrui Zheng ◽  
Xiaoyu Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Ostwald Ripening ◽  
Performance Enhancement ◽  
Three Dimensional ◽  
Negative Electrode ◽  
Hierarchical Architecture ◽  
Nanorod Arrays ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
Nanosheet Arrays

Abstract We successfully designed and prepared hierarchical Ni3S2 nanosheet@nanorod arrays on three-dimensional Ni foam via facile hydrothermal sulfuration. We conducted a series of time- and temperature-dependent experiments to determine the Ostwald ripening process of hierarchical Ni3S2 nanosheet@nanorod arrays. The rationally hierarchical architecture creates an excellent supercapacitor electrode for Ni3S2 nanosheet@nanorod arrays. The areal capacitance of this array reaches 5.5 F cm-2 at 2 mA cm-2, which is much higher than that of Ni3S2 nanosheet arrays (1.5 F cm-2). The corresponding asymmetric supercapacitor exhibits a wide potential window of 1.6 V and energy density up to 1.0 Wh cm-2 when the proposed array is utilized as the positive electrode with activated carbon as the negative electrode. This electrochemical performance enhancement is attributable to the hierarchical structure and synergistic cooperation of macroporous Ni foam and well-aligned Ni3S2 nanosheet@nanorod arrays. Our results represent a promising approach to the preparation of hierarchical nanosheet@nanorod arrays as high-performing electrochemical capacitors.

Three-dimensional NiCo2O4/NiCo2S4hybrid nanostructure on Ni-foam as a high-performance supercapacitor electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95760-95767 ◽  
Author(s):  
Shipra Raj ◽  
Suneel Kumar Srivastava ◽  
Pradip Kar ◽  
Poulomi Roy
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Hybrid Nanostructures ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
Evaporation Technique ◽  
Ph Controlled

The high performance electrode for supercapacitor based on NiCo2O4/NiCo2S4hybrid nanostructures on Ni-foam were successfully fabricated by a facile pH-controlled ammonia evaporation technique.

Morphology and Structure Induced Co3O4 Nanowires High-Performance Supercapacitor Electrode Material

2021 ◽  
Vol 16 (6) ◽  
pp. 1005-1010
Author(s):  
Jian Wang ◽  
Yan Zhao ◽  
Yucai Li ◽  
Shiwei Song
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Structural Characteristics ◽  
High Porosity ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
Morphology And Structure ◽  
Hydrothermal Approach ◽  
Large Capacitance ◽  
Superior Cycling Stability

The electrochemical performance of the material depends heavily on the morphologies and structural characteristics of the material. Co3O4 samples show the remarkable electrochemical performance owing to the high porosity, appropriate pore size distribution and novel architecture and the effect of NH4F for morphology. Co3O4 nanowires grown on Ni foam have been synthesized through a facile hydrothermal approach, revealing large capacitance of 2178.4 mF cm−2 at the current density of 2 mA cm−2 and superior cycling stability.

A high-performance asymmetric supercapacitor electrode based on a three-dimensional ZnMoO4/CoO nanohybrid on nickel foam

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13639-13649 ◽  
Author(s):  
Pengxi Li ◽  
Chaohui Ruan ◽  
Jing Xu ◽  
Yibing Xie
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Nickel Foam ◽  
Three Dimensional ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Supercapacitor Electrode ◽  
Storage Performance ◽  
High Energy Storage

A three-dimensional criss-crossed ZnMoO4/CoO nanohybrid was synthesized to deliver high energy storage performance.

Solvothermal synthesis of cobalt nickel layered double hydroxides with a three-dimensional nano-petal structure for high-performance supercapacitors

2020 ◽  
Vol 4 (1) ◽  
pp. 337-346 ◽  
Author(s):  
Hailiang Chu ◽  
Ying Zhu ◽  
Tingting Fang ◽  
Junqiang Hua ◽  
Shujun Qiu ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Solvothermal Synthesis ◽  
High Performance ◽  
Three Dimensional ◽  
Rate Performance ◽  
Supercapacitor Electrode ◽  
Long Term Stability ◽  
Cobalt Nickel ◽  
Double Hydroxides

CoNi LDH-6 with a nano-petal structure was prepared, which exhibited excellent rate performance and long-term stability as a supercapacitor electrode.

Sign in / Sign up

Export Citation Format

Share Document