Kamaraj Sathish kumar - Microwave Assisted Synthesis and Characterizations of  Decorated Activated Carbon 

Version 1

      Publication Details (including relevant citation   information):

      Received: 1 March 2012 / Accepted: 24 April 2012 / Published: 1   June 2012

      Abstract:

      A novel intermittent microwave assisted method was developed for   surface impregnation and electrical

      properties improvement of decorated activated carbon (DAC), from   commercially available activated

      carbon (AC) and Vulcan carbon (VC). These materials were   characterized by UV-visible

      spectroscopy, Raman spectroscopy, X-ray diffraction (XRD),   Brunauer–Emmett–Teller (BET),

      scanning electron microscopy (SEM) and electrical conductivity.   The UV absorption peak in carbon

      materials is related to electronic transitions between the   bonding and antibonding π orbital. Raman

      spectroscopy and XRD results showed that the higher disorder of   amorphous carbon phase arose in

      DAC, when compared to typical AC. Results from BET analysis had   relatively high surface area of

      1141m2

      /g and total pore size volume of 0.524 m3

      /g for DAC. SEM analysis revealed that undefined

      structure of activated carbon material (~1-3 µm in size) breakage   into ~ 100 nm in size over this

      Vulcan carbon material (~60nm in size) was decorated. From the   electrical conductivity (σ) study, the

      value of σ followed the tendency DAC < VC < AC and   increased almost with pressure. High surface

      area and high conductivity decorated carbon nano structures could   be used as candidate hosts for metal

      electrocatalysts for fuel cell applications.

      Address (URL): http://www.electrochemsci.org/papers/vol7/7065484.pdf