Chemical Mapping and Electrochemical Performance of Manganese Dioxide/Activated Carbon Based Composite Electrode for Asymmetric Electrochemical Capacitor

2015 ◽  
Vol 162 (5) ◽  
pp. A5115-A5123 ◽  
Author(s):  
Axel Gambou-Bosca ◽  
Daniel Bélanger
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Manganese Dioxide ◽  
Composite Electrode ◽  
Electrochemical Capacitor ◽  
Chemical Mapping ◽  
Carbon Based

Cyclic Voltammetry Analysis of Carbon Based Electrochemical Capacitor in Aqueous Electrolytes

2015 ◽  
Vol 761 ◽  
pp. 452-456 ◽  
Author(s):  
Raja Noor Amalina Raja Seman ◽  
Rose Farahiyan Munawar ◽  
Jeeferie Abd Razak ◽  
Nor Najihah Zulkapli ◽  
Mohd Shahril Amin Bistamam ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Cyclic Voltammetry ◽  
Activated Carbon ◽  
Carbon Nanotube ◽  
Electrochemical Properties ◽  
Electrochemical Capacitor ◽  
Aqueous Electrolytes ◽  
Cyclic Voltammetry Analysis ◽  
Carbon Based

In this study, a mixture of activated carbon (AC) and graphene (G) was coated onto the stainless steel (SS) mesh to produce an electrode for the electrochemical capacitor (EC). Different materials, such as carbon nanotube (CNT) mixed with G, were also used in this experiment to compare the electrochemical properties of both electrodes. The electrochemical properties of the electrode were determined by using cyclic voltammetry (CV). The CV curves of the AC/G electrodes showed good capacitive behaviour, and the highest capacitance values obtained for AC/G and CNT/G electrodes in 1M H2SO4 at 1 mVs-1 were 13 Fg-1 and 4.34 Fg-1, respectively. Meanwhile, the highest capacitance values obtained in 6M KOH at 1 mVs-1 were 14 Fg-1 and 12.07 Fg-1 for AC/G and CNT/G electrodes, respectively.

High performance N-doped porous activated carbon based on chicken feather for supercapacitors and CO2 capture

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34803-34811 ◽  
Author(s):  
Zijian Zhao ◽  
Yong Wang ◽  
Min Li ◽  
Ru Yang
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Co2 Capture ◽  
High Performance ◽  
Chicken Feather ◽  
Porous Carbons ◽  
Excellent Electrochemical Performance ◽  
Porous Activated Carbon ◽  
Carbon Based

The chicken feather-derived N-doped porous carbons exhibit excellent electrochemical performance and high CO2 uptake.

scholarly journals SYNTHESIS, CHARACTERIZATION AND ELECTROCHEMICAL PERFORMANCE OF ACTIVATED CARBON SUPPORTED MnO2 FOR ELECTROCHEMICAL CAPACITOR

2018 ◽  
Vol 56 (5) ◽  
Author(s):  
Thuy Thu Luong Thi ◽  
Khu Van Le ◽  
Lien Kim Nguyen Thi
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Specific Surface ◽  
Surface Area ◽  
Pore Volume ◽  
Manganese Content ◽  
Electrochemical Capacitor ◽  
Reduction Temperature ◽  
Magnetic Stirring ◽  
Ultrasonic Stirring

MnO2 was synthesized by adding activated carbon into KMnO4 solution and stirred in a magnetic or ultrasonic stirrer. The obtained MnAC samples were characterized by means of XRD, TGA, TPR-H2, SEM and BET. All samples are amorphous and have porous structure. MnAC-M prepared by magnetic stirring have higher manganese content, earlier reduction temperature, smoother surface area while MnAC-U prepared by ultrasonic stirring have larger specific surface area and pore volume.

LiFePO4 - Activated Carbon Composite Electrode as Symmetrical Electrochemical Capacitor in Mild Aqueous Electrolyte

2014 ◽  
Vol 627 ◽  
pp. 3-6 ◽  
Author(s):  
M.Y. Ho ◽  
Poi Sim Khiew ◽  
D. Isa ◽  
T.K. Tan ◽  
W.S. Chiu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Specific Capacitance ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Low Cost ◽  
Electrochemical Capacitor ◽  
Carbon Composite ◽  
Electrochemical Performances ◽  
Composite Electrodes ◽  
Capacitive Performance

In this study, a symmetric electrochemical capacitor has been fabricated by adopting the lithiated compound (LiFePO4)-activated carbon (AC) composite as the core electrode materials. The electrochemical performances of the prepared supercapacitor were studied using cyclic voltammetry (CV) in 1.0 M Na2SO3 solution. Experimental results reveal that the maximum specific capacitance of 112.41 F/g is obtained in 40 wt % LiFePO4 loading on AC electrode in comparison to that of pure AC electrode (76.24 F/g) in 1 M Na2SO3. The enhanced capacitive performance of the 40 wt % LiFeO4 –AC composite electrode is believed attributed to the contribution of synergistic effect of electric double layer capacitance (EDLC) on the surface of AC as well as pseudocapacitance via intercalation/extraction of Na+, SO32-and Li+ ions in LiFePO4 lattices. The composite electrodes can sustain a stable capacitive performance at least 1000 cycles with only ~5 % specific capacitance loss after 1000 cycles. Based on the findings above, 40 wt % LiFeO4 –AC composite electrodes which utilise low cost materials and environmental friendly electrolyte is worth being investigated in more details.

Improved electrochemical performance of activated carbon/polyaniline composite electrode

2014 ◽  
Vol 117 ◽  
pp. 248-251 ◽  
Author(s):  
Dipali S. Patil ◽  
Sachin A. Pawar ◽  
Rupesh S. Devan ◽  
Yuan Ron Ma ◽  
Woo Ri Bae ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Composite Electrode

An Electrochemical Capacitor Based on a Ni(OH)[sub 2]/Activated Carbon Composite Electrode

2002 ◽  
Vol 5 (2) ◽  
pp. H7 ◽  
Author(s):  
Jong Hyeok Park ◽  
O. Ok Park ◽  
Kyung Hee Shin ◽  
Chang Soo Jin ◽  
Jong Huy Kim
Keyword(s):  
Activated Carbon ◽  
Composite Electrode ◽  
Electrochemical Capacitor ◽  
Carbon Composite ◽  
Carbon Composite Electrode
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