ZIF-67-derived NiCo2O4@Co2P/Ni2P honeycomb nanosheets on carbon cloth for high-performance asymmetric supercapacitors

Author(s):  
Wen-Wei Song ◽  
Bing Wang ◽  
Xiao-Man Cao ◽  
Qiang Chen ◽  
Zhengbo Han

Metal-organic frameworks (MOFs)-derived transition-metal oxides and transition-metal phosphides have great application potential as electrode materials for supercapacitors, owing to the excellent redox activity and high conductivity. However, their electrochemical performances...

2020 ◽  
Vol 59 (50) ◽  
pp. 22749-22755
Author(s):  
Kang Sun ◽  
Meng Liu ◽  
Junzhe Pei ◽  
Dandan Li ◽  
Chunmei Ding ◽  
...  

2018 ◽  
Vol 47 (45) ◽  
pp. 16320-16328 ◽  
Author(s):  
Quan Zong ◽  
Hui Yang ◽  
Qianqian Wang ◽  
Qilong Zhang ◽  
Jin Xu ◽  
...  

Transition metal phosphides (TMPs) represent an important class of compounds with metalloid characteristics and good electrical conductivity, which are of great benefit to enhance electrochemical performances.


2021 ◽  
Author(s):  
Shuling Liu ◽  
Rui Wang ◽  
Qiuting Wang ◽  
Qianhong Tian ◽  
Xian Cui

Transition-metal selenides is regarded as promising electrode materials due to their superior electrochemical performances for supercapacitors. In this study, nanorod-like hybrid of Ni0.85Se@Cu2-xSe on Ni-foam substrate is successfully synthesized via...


2017 ◽  
Vol 5 (18) ◽  
pp. 8155-8186 ◽  
Author(s):  
Guangxun Zhang ◽  
Xiao Xiao ◽  
Bing Li ◽  
Peng Gu ◽  
Huaiguo Xue ◽  
...  

Controlled synthesis for electrode materials and excellent electrochemical performances were introduced for advanced supercapacitors.


Nano Today ◽  
2021 ◽  
Vol 38 ◽  
pp. 101201
Author(s):  
Quan Zong ◽  
Chaofeng Liu ◽  
Hui Yang ◽  
Qilong Zhang ◽  
Guozhong Cao

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 269 ◽  
Author(s):  
Xuelei Wang ◽  
Anyu Hu ◽  
Chao Meng ◽  
Chun Wu ◽  
Shaobin Yang ◽  
...  

Among the popular electrochemical energy storage devices, supercapacitors (SCs) have attracted much attention due to their long cycle life, fast charge and discharge, safety, and reliability. Transition metal oxides are one of the most widely used electrode materials in SCs because of the high specific capacitance. Among various transition metal oxides, Co3O4 and related composites are widely reported in SCs electrodes. In this review, we introduce the synthetic methods of Co3O4, including the hydrothermal/solvothermal method, sol–gel method, thermal decomposition, chemical precipitation, electrodeposition, chemical bath deposition, and the template method. The recent progress of Co3O4-containing electrode materials is summarized in detail, involving Co3O4/carbon, Co3O4/conducting polymer, and Co3O4/metal compound composites. Finally, the current challenges and outlook of Co3O4 and Co3O4-containing composites are put forward.


Author(s):  
Yanhong Liu ◽  
Jiahong Liu ◽  
Yijun Cao ◽  
Wei Shang ◽  
Ning Peng ◽  
...  

Abstract Metal-organic frameworks (MOFs) due to their porosity and well-defined structures are considered to be very promising electrode materials for the construction of high-performance supercapacitor. In this paper, manganese-based metal organic frameworks (Mn-MOF) were prepared on the surface of carbon cloth (CC) by hydrothermal method. The morphology and structure of the electrode material were characterized by SEM, XRD, FT-IR, and XPS. Its electrochemical studies show that the Mn-MOF electrode materials exhibit low charge transfer resistance, the excellent specific capacitance of 433.5 mF·cm−2 in 1.0 M Na2SO4 aqueous solution at the current density of 0.8 mA·cm−2. It is noteworthy that the flexible electrode has excellent cycle stability and 105% capacitance retention even after 5000 cycles at a current density of 5 mA·cm−2. The high electrochemical performance of Mn-MOF/CC flexible electrode materials can be attributed to its three-dimensional porous structure.


2021 ◽  
Vol 9 ◽  
Author(s):  
Tianli Han ◽  
Mingqiang Qi ◽  
Shanshan Yang ◽  
Xinya Diao ◽  
Jiawei Long ◽  
...  

Secondary batteries have been important across several aspects of daily life and industrial manufacture. The electron and ion transport of electrodes significantly affects the energy-storage performance of batteries. Among many fascinating materials, transition metal oxides have been considered promising as candidate electrode materials of high-performance batteries owing to their high theoretical capacity and good stability. Herein, tin dioxide is chosen as a representative transition metal oxide to show the specific electron and ion transport in some types of secondary batteries including lithium-ion, lithium-sulfur, potassium-ion batteries, etc. The way to optimize the structure and the strategies to enhance electron and ion transport have been summarized. Recently, tin dioxide doping and the preparation of tin dioxide-based composites have been reported. In addition, the main challenges and possible prospects are also proposed, which provide important suggestions for researchers to develop high-performance energy-storage materials and to explore new physical science.


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