A Hydrous Ruthenium Oxide-Carbon Nanofibers Composite Electrodes Prepared by Electrospinning

2007 ◽  
Vol 154 (3) ◽  
pp. A192 ◽  
Author(s):  
Young-Wan Ju ◽  
Gyoung-Rin Choi ◽  
Hong-Ryun Jung ◽  
Chan Kim ◽  
Kap-Seung Yang ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Ruthenium Oxide ◽  
Composite Electrodes

ELECTROCHEMICAL BEHAVIOR OF AMORPHOUS HYDROUS RUTHENIUM OXIDE/ACTIVE CARBON COMPOSITE ELECTRODES FOR SUPER-CAPACITOR

2002 ◽  
Vol 16 (28n29) ◽  
pp. 4479-4483 ◽  
Author(s):  
JIAN-RONG ZHANG ◽  
BIN CHEN ◽  
WEI-KUAN LI ◽  
JUN-JIE ZHU ◽  
LI-PING JIANG
Keyword(s):  
Active Carbon ◽  
Electrochemical Behavior ◽  
Sol Gel ◽  
Ruthenium Oxide ◽  
Carbon Composite ◽  
Electrochemical Characteristics ◽  
Composite Electrodes ◽  
Super Capacitor ◽  
A Value ◽  
Sol Gel Process

The RuO 2· xH 2 O/C composites were prepared directly based on a sol-gel process under ultrasonic wave (50Hz). The specific capacitance of pure RuO 2· xH 2 O materials obtained by the method reached a value of 760F/g. Physical properties of the material and electrochemical characteristics of electrodes were described.

scholarly journals Cellulose-derived carbon nanofibers/graphene composite electrodes for powerful compact supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (73) ◽  
pp. 45968-45977 ◽  
Author(s):  
Volodymyr Kuzmenko ◽  
Nan Wang ◽  
Mazharul Haque ◽  
Olga Naboka ◽  
Mattias Flygare ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Composite Electrodes ◽  
Graphene Composite ◽  
Electrodes For Supercapacitors

Presented freestanding carbon nanofibers/graphene composite electrodes for supercapacitors have two essential advantages: sustainable nature and high volumetric electrochemical efficiency.

Ruthenium Oxide/Activated Carbon Composites for Electrochemical Capacitors

2011 ◽  
Vol 347-353 ◽  
pp. 3370-3374
Author(s):  
Ming Dong Zheng ◽  
Ru Chun Li ◽  
Xiao Jun He ◽  
Xian Ping Dong ◽  
Ping Hua Ling ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Ruthenium Oxide ◽  
Total Pore Volume ◽  
Nitrogen Adsorption ◽  
Micropore Volume ◽  
Constant Current ◽  
Composite Electrodes ◽  
Hno3 Solution ◽  
Constant Current Charge ◽  
Charge Discharge

Activated carbon (AC) was prepared from lignite by microwave heating ZnCl2. The pore structure parameters of AC are characterized by nitrogen adsorption technique. The AC and ruthenium oxide/AC composite are characterized by thermogravimetric analysis and transmission electron microscope. Electrochemical properties of ACs and ruthenium oxide/AC composite electrodes were investigated by cyclic voltammetry and constant current charge–discharge after AC was pre−oxidized by HNO3 solution. The results show that the specific surface area and total pore volume of AC from lignite reaches 1310 m2 g−1 and 0.80 cm3 g−1, respectively. The micropore volume of AC from lignite totals only 12.5%. AC and ruthenium oxide/AC composite electrodes with 5wt.% ruthenium oxide loading show high cycle stability. Compared to pristine AC electrode, specific capacitance of ruthenium/AC composite electrode and energy density of ruthenium/AC capacitor after 100 charge−discharge cycles increases 40.8% and 39.1%, respectively.

Sign in / Sign up

Export Citation Format

Share Document