Synthesis of surfactant-free SnS nanorods by a solvothermal route with better electrochemical properties towards supercapacitor applications

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 17228-17235 ◽  
Author(s):  
Himani Chauhan ◽  
Manoj K. Singh ◽  
S. A. Hashmi ◽  
Sasanka Deka
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Solvothermal Method ◽  
High Specific Capacitance ◽  
Solvothermal Route ◽  
Supercapacitor Applications

First use of a surfactant-free SnS nanorods synthesized by a solvothermal method in supercapacitor applications having high specific capacitance.

scholarly journals A Rapid Synthesis of Mesoporous Mn2O3 Nanoparticles for Supercapacitor Applications

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 631 ◽  
Author(s):  
You-Hyun Son ◽  
Phuong T. M. Bui ◽  
Ha-Ryeon Lee ◽  
Mohammad Shaheer Akhtar ◽  
Deb Kumar Shah ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Active Sites ◽  
Low Cost ◽  
Hydrothermal Process ◽  
High Specific Capacitance ◽  
Manganese Acetate ◽  
Benign Nature ◽  
Supercapacitor Applications ◽  
Mn2o3 Nanoparticles

Mn2O3 nanomaterials have been recently composing a variety of electrochemical systems like fuel cells, supercapacitors, etc., due to their high specific capacitance, low cost, abundance and environmentally benign nature. In this work, mesoporous Mn2O3 nanoparticles (NPs) were synthesized by manganese acetate, citric acid and sodium hydroxide through a hydrothermal process at 150 °C for 3 h. The synthesized mesoporous Mn2O3 NPs were thoroughly characterized in terms of their morphology, surfaces, as well as their crystalline, electrochemical and electrochemical properties. For supercapacitor applications, the synthesized mesoporous Mn2O3 NP-based electrode accomplished an excellent specific capacitance (Csp) of 460 F·g−1 at 10 mV·s−1 with a good electrocatalytic activity by observing good electrochemical properties in a 6 M KOH electrolyte. The excellent Csp might be explained by the improvement of the surface area, porous surface and uniformity, which might favor the generation of large active sites and a fast ionic transport over the good electrocatalytic surface of the Mn2O3 electrode. The fabricated supercapacitors exhibited a good cycling stability after 5000 cycles by maintaining ~83% of Csp.

High Specific Capacitance and Energy density of Synthesized Graphene Oxide based Hierarchical Al2S3 Nanorambutan for Supercapacitor Applications

2017 ◽  
Vol 246 ◽  
pp. 1097-1103 ◽  
Author(s):  
Muhammad Faisal Iqbal ◽  
Mahmood-Ul-Hassan ◽  
Muhammad Naeem Ashiq ◽  
Shahid Iqbal ◽  
Nasreen Bibi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Density ◽  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Supercapacitor Applications

Novel FeNi2S4/TMD-based ternary composites for supercapacitor applications

2016 ◽  
Vol 4 (22) ◽  
pp. 8844-8850 ◽  
Author(s):  
Jianfeng Shen ◽  
Jin Ji ◽  
Pei Dong ◽  
Robert Baines ◽  
Zhuqing Zhang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Supercapacitor Applications

Novel FeNi2S4/TMD-based ternary composites with high specific capacitance and cycling stability were achieved.

A FACILE ONE-STEP HYDROTHERMAL METHOD TO PRODUCE GRAPHENE OXIDE/Fe2O3-NANOTUBES COMPOSITES AND ITS ELECTROCHEMICAL PROPERTIES

NANO ◽  
2012 ◽  
Vol 07 (04) ◽  
pp. 1250032 ◽  
Author(s):  
WEN FU ◽  
CHUNNIAN CHEN
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Hydrothermal Method ◽  
High Specific Capacitance ◽  
Cyclic Voltammogram ◽  
Transmission Electron Microscopy Analysis ◽  
Electron Microscopy Analysis ◽  
One Step ◽  
Charge Discharge

The composites of graphene oxide/ Fe2O3-nanotubes (GO/ Fe2O3-NTs) have been fabricated through a facile one-step hydrothermal method. Fe2O3-NTs crystallines were homogeneously distributed on GO, which have been confirmed by transmission electron microscopy analysis (TEM). The structure, composition and electrochemical properties of GO/ Fe2O3-NTs composites were investigated by means of selective-area electron diffraction (SAED), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Raman spectra, cyclic voltammogram (CV) curves and galvanostatic charge–discharge curves. GO/ Fe2O3-NTs composites exhibit a high specific capacitance of 133.2 Fg-1in 1 M Li2SO4electrolyte. In addition, the GO/ Fe2O3-NTs composites electrode shows good long-term cycle stability (only 9% decrease of the specific capacitance is observed after 1000 charge–discharge cycles).

Structural and Electrochemical Study of Dandelion-Like Manganese Dioxide Synthesized by a New Microwave Hydrothermal Method

2011 ◽  
Vol 233-235 ◽  
pp. 1516-1519
Author(s):  
Jian Ling Li ◽  
Yi Tuo Wang ◽  
Ya Kun Zhang ◽  
Gui Mei Han ◽  
Fei Gao ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Electrochemical Impedance ◽  
Active Material ◽  
High Specific Capacitance ◽  
Microwave Hydrothermal ◽  
Microwave Hydrothermal Method ◽  
Novel Method ◽  
First Time

The microwave-hydrothermal method for synthesizing g-MnO2 has been investigated for the first time. The dandelion-like g-MnO2 active material with 1.0-5.0 μm in diameter was obtained from KBrO3 and MnSO4 via the novel method. Compared with traditional low-temperature hydrothermal method, this approach lowers the temperature by 30-40 °C, and shorts the reaction time 6-14 h. Electrochemical properties of dandelion-like γ-MnO2were elucidated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy tests. The synthesized material shows a relative high specific capacitance, and the MnO2 obtained at the condition of 75 °C for 2 h shows the best electrochemical properties with a specific capacitance of 239.3 F·g-1 at the current density of 100 mA·g-1 in 6 M KOH electrolyte solution.

Remarkable capacitive behavior of a Co3O4–polyindole composite as electrode material for supercapacitor applications

2015 ◽  
Vol 3 (48) ◽  
pp. 24338-24348 ◽  
Author(s):  
R. Pavul Raj ◽  
P. Ragupathy ◽  
S. Mohan
Keyword(s):  
Synergistic Effect ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
High Specific Capacitance ◽  
Single Step ◽  
Rate Performance ◽  
Capacitive Behavior ◽  
Supercapacitor Applications

A single step synthesized Co3O4–polyindole composite electrode exhibits high specific capacitance, rate performance and cyclability. This enhanced electrochemical supercapacitive behavior is mainly attributed to the synergistic effect between Co3O4 and polyindole.

Rapid synthesis of Ni(OH)2/graphene nanosheets and NiO@Ni(OH)2/graphene nanosheets for supercapacitor applications

2019 ◽  
Vol 43 (7) ◽  
pp. 3091-3098 ◽  
Author(s):  
Yunhui Qi ◽  
Yunfei Liu ◽  
Rui Zhu ◽  
Qiuliang Wang ◽  
Yali Luo ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Graphene Nanosheets ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Rapid Synthesis ◽  
Supercapacitor Applications

β-Ni(OH)2 or NiO@Ni(OH)2 grew on commercial graphene nanosheets with high specific capacitance and excellent rate capability.

scholarly journals Facile synthesis of NFL-ZnWO4 for pseudocapacitor applications

2019 ◽  
Vol 272 ◽  
pp. 01005
Author(s):  
Xiao Fan ◽  
Xuyuan Chen
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Specific Capacitance ◽  
High Property ◽  
Facile Synthesis ◽  
Hydrothermal Route ◽  
Physical And Chemical ◽  
First Time ◽  
Promising Electrode Material

In this report, NFL-ZnWO4 was synthesized by a hydrothermal route and investigated for application in supercapacitors for the first time. The physical and chemical characterizations of the prepared nanomaterial were analyzed by SEM, EDS, XRD and XPS, respectively. Supercapacitors study of CV, GCD and EIS revealed that NFL-ZnWO4 exhibits good electrochemical properties. The high specific capacitance value of 107.7 F g-1 was achieved at 5 mV s−1. These findings demonstrated that ZnWO4 could be a promising electrode material candidate and highly desirable for application of high property supercapacitors in the future.

Facile synthesis of highly porous N-doped CNTs/Fe3C and its electrochemical properties

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44013-44018 ◽  
Author(s):  
Yanzhong Wang ◽  
Guoxiang Zhang ◽  
Guiwu Liu ◽  
Wei Liu ◽  
Huiyu Chen ◽  
...  
Keyword(s):  
Specific Surface ◽  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Capacitance ◽  
Large Specific Surface Area ◽  
Facile Synthesis ◽  
Highly Porous

Porous N-doped CNTs/Fe3C was synthesized by a facile method. N-doped CNTs/Fe3C possesses the large specific surface area up to 1021.26 m2g−1. It exhibits a high specific capacitance of 181 F g−1at 0.1 A g−1and excellent capacitance rate.

Sign in / Sign up

Export Citation Format

Share Document