Electrochemical properties of novel ionic liquids for electric double layer capacitor applications

2004 ◽  
Vol 49 (21) ◽  
pp. 3603-3611 ◽  
Author(s):  
Takaya Sato ◽  
Gen Masuda ◽  
Kentaro Takagi
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Properties ◽  
Double Layer ◽  
Electric Double Layer ◽  
Electric Double Layer Capacitor ◽  
Double Layer Capacitor

scholarly journals Carbonization and H3PO4 activation of fern Dicranopteris linearis and electrochemical properties for electric double layer capacitor electrode

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Trang K. Trinh ◽  
Toshiki Tsubota ◽  
Shuto Takahashi ◽  
Nga T. Mai ◽  
Minh N. Nguyen ◽  
...  
Keyword(s):  
Climate Change ◽  
Electrochemical Properties ◽  
Double Layer ◽  
Electric Double Layer ◽  
Electric Double Layer Capacitor ◽  
Mixing Ratio ◽  
Mixing Ratios ◽  
Positive Tendency ◽  
Double Layer Capacitor ◽  
Dicranopteris Linearis

AbstractToday, the world’s climate change is a growing problem, plant carbon sequestration is one of the effective ways to mitigate climate change by reducing greenhouse gases, mostly carbon gases. Dicranopteris linearis (D. linearis), a common fern species in the tropic or subtropic ecoregions, has been recently recognized as a potential feedstock to produce highly porous biochar. This study aims to enhance the specific surface area (SSA) and pore volumes of biochars derived from the D. linearis by H3PO4 activation and examine electrical properties of the activated biochars and their possible usage for the electric double-layer capacitor (EDLC) electrode. The treated raw fern was activated with H3PO4 85% by the three different mixing ratios 1:0, 1:1, and 1:3 (w/w) and then pyrolysis under N2 flow maintained at 500 °C for 1 h. The performance as the electrode for an EDLC was evaluated in 1 mol L−1 H2SO4 solution for the H3PO4-activated samples. The SSA and pore volumes were drastically increased after activation. The maximum SSA and pore volume were 1212 m2 g−1 and 1.43 cm3 g−1, respectively for the biochar activated at 400 °C with a weight mixing ratio 1:3 (w/w) between the fern and H3PO4 acid while these values of the biochar at 400 °C were 12 m2 g−1 and 0.02 cm3 g−1, respectively. The biochar activated at 600 °C with the mixing ratio 1:1 (w/w) showed the maximum capacitance value, ca. 108 F g−1 at 1 mV s−1. The activation using H3PO4 showed a positive tendency to enhance electrochemical properties and it could be a premise toward a higher performance of EDLC from the D. linearis derived activated biochar.

scholarly journals Electrochemical Properties of Pillared Carbons for the Electrode of Electric Double Layer Capacitor

2020 ◽  
Vol 88 (2) ◽  
pp. 53-56
Author(s):  
Yoshiaki MATSUO ◽  
Takuma KINO ◽  
Junichi INAMOTO ◽  
Osamu KIMIZUKA ◽  
Motoaki NISHIJIMA ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Double Layer ◽  
Electric Double Layer ◽  
Electric Double Layer Capacitor ◽  
Double Layer Capacitor

Electrode for Electric Double Layer Capacitor Made of Carbonized and Activated Cotton Cloth

2014 ◽  
Vol 134 (5) ◽  
pp. 360-361
Author(s):  
Masumi Fukuma ◽  
Takayuki Uchida ◽  
Yukito Fukushima ◽  
Jinichi Ogawa ◽  
Katsumi Yoshino
Keyword(s):  
Double Layer ◽  
Electric Double Layer ◽  
Cotton Cloth ◽  
Electric Double Layer Capacitor ◽  
Double Layer Capacitor
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