Physical and electrochemical properties of quaternary ammonium bis(oxalato)borates and their application to electric double-layer capacitors

2006 ◽  
Vol 52 (4) ◽  
pp. 1763-1770 ◽  
Author(s):  
Noritoshi Nanbu ◽  
Takahito Ebina ◽  
Hiroyuki Uno ◽  
Saki Ishizawa ◽  
Yukio Sasaki
Keyword(s):  
Electrochemical Properties ◽  
Double Layer ◽  
Quaternary Ammonium ◽  
Electric Double Layer ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

scholarly journals Physical and Electrochemical Properties of Fluoroacetonitrile and Its Application to Electric Double-Layer Capacitors

2007 ◽  
Vol 75 (8) ◽  
pp. 611-614 ◽  
Author(s):  
Keita SUZUKI ◽  
Masanori SHIN-YA ◽  
Yoshiya ONO ◽  
Takamitsu MATSUMOTO ◽  
Noritoshi NANBU ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Double Layer ◽  
Electric Double Layer ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

scholarly journals Effects of E-Beam Irradiation on the Chemical, Physical, and Electrochemical Properties of Activated Carbons for Electric Double-Layer Capacitors

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Min-Jung Jung ◽  
Mi-Seon Park ◽  
Young-Seak Lee
Keyword(s):  
Specific Surface ◽  
Electrochemical Properties ◽  
Double Layer ◽  
Electric Double Layer ◽  
Activated Carbons ◽  
Chemical Compositions ◽  
Radiation Doses ◽  
Beam Irradiation ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

Activated carbons (ACs) were modified via e-beam irradiation at various doses for use as an electrode material in electric double-layer capacitors (EDLCs). The chemical compositions of the AC surfaces were largely unchanged by the e-beam irradiation. The ACs treated with the e-beam at radiation doses of 200 kGy exhibited higher nanocrystallinity than the untreated ACs. The specific surface areas and pore volumes of the e-beam irradiated ACs were also higher than those of the untreated ACs. These results were attributed to the transformation and degradation of the nanocrystallinity of the AC surfaces due to the e-beam irradiation. The specific capacitance of the ACs treated with the e-beam at radiation doses of 200 kGy increased by 24% compared with the untreated ACs, and the charge transfer resistance of the ACs was decreased by the e-beam irradiation. The enhancement of the electrochemical properties of the e-beam irradiated ACs can be attributed to an increase in their specific surface area and surface crystallinity.

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