ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Pitch based activated carbon fibers(ACFs) were characterized by electric decompositionmethod in the various kinds of acid electrolyte. The felt-type commercialized ACFs were used as rawmaterial and the acids such as HCl, H2SO4, HNO3 and HF were used as electrolytes for electricdecomposition. ACFs were treated with 0.7 ~ 2.0A/g-ACF of DC as an anode material for few hoursin the acid electrolyte bath and voltage was varied 10~50V according to the condition of current andelectrolyte. The pore properties of surface characterized ACFs were measured by adsorption analyzerand changes of surface morphology were also observed by scanning electron microscope andtransmitting electron microscope. In order to estimate possibility of use as hydrogen storage material,hydrogen adsorption amount was measured with high pressure thermogravimetric analyzer. In theresult the pore size distribution of surface characterized ACFs were changed with respect to electricdecomposition condition, especially species and concentration of electrolytes and hydrogenadsorption amount also changed according to pore properties of ACFs
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.1837.pdf
