Remarkable Activity Enhancement of Pitch Based Active Carbon Fibers by Heat-treatment for Oxidative SO2Removal

1996 ◽  
Vol 25 (7) ◽  
pp. 541-542 ◽  
Author(s):  
Isao Mochida ◽  
Keiichi Kuroda ◽  
Yuji Kawabuchi ◽  
Shizuo Kawano ◽  
Yuji Matsumura ◽  
...  
Carbon ◽  
1999 ◽  
Vol 37 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Yozo Korai ◽  
Seong-Hwa Hong ◽  
Isao Mochida

1996 ◽  
Vol 39 (2) ◽  
pp. 151-157 ◽  
Author(s):  
Isao MOCHIDA ◽  
Yuji KAWABUCHI ◽  
Motohiro HIRONAKA ◽  
Shizuo KAWANO ◽  
Yuji MATSUMURA ◽  
...  

2020 ◽  
Vol 44 (37) ◽  
pp. 15942-15950
Author(s):  
Ling Tao ◽  
Yang Yang ◽  
Fangke Yu

In this work, active carbon fibers (ACFs) were modified with nitrogen-doped porous carbon (NPC) and carbon nanotubes (CNTs) to prepare a novel modified electrode as a cathode.


2013 ◽  
Vol 226 ◽  
pp. 46-51 ◽  
Author(s):  
Magdalena Luty-Błocho ◽  
Marek Wojnicki ◽  
Krzysztof Pacławski ◽  
Krzysztof Fitzner

1992 ◽  
Vol 7 (7) ◽  
pp. 1788-1794 ◽  
Author(s):  
A.M. Rao ◽  
A.W.P. Fung ◽  
M.S. Dresselhaus ◽  
M. Endo

Raman scattering, x-ray diffraction, and BET measurements are used to study the effect of heat treatment on the microstructure of activated carbon fibers (ACFs) and to correlate the structural changes with the metal-insulator transition observed in the electronic transport properties of heat-treated ACFs. A sequence of events is identified, starting with desorption, followed by micropore collapse plus the stacking of basic structural units in the c-direction, and ending up with in-plane crystallization. The graphitization process closely resembles that depicted by Oberlin's model, except that the final material at high-temperature heat treatment remains turbostratic. Because the metal-insulator transition was observed to occur at heat-treatment temperature THT ≃ 1200 °C, which is well below the THT value (2000 °C) for in-plane crystallization, we conclude that this electronic transition is not due to in-plane ordering but rather to the collapse of the micropore structure in the ACFs. Raman scattering also provides strong evidence for the presence of local two-dimensional graphene structures, which is the basis for the transport phenomena observed in heat-treated ACFs.


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