WiSys: T130012US02

Ultrafast Synthesis of Activated Carbon


Annamalai Karthikeyan

OVERVIEWActivated (porous) carbon is conventionally produced by pyrolysis (carbonization) of carbon-rich biomass or coal followed by activation/oxidation. Activated carbon produced by this conventional method has limited absorption capacity due to variable porosity and high ash content. Furthermore, conventional production methods require expensive plant infrastructure, temperatures up to 900 degrees Celsius, byproduct recovery and removal, and modification of the resulting carbon depending on the source of biomass/coal.
THE INVENTIONResearchers at the University of Wisconsin System have developed an ultrafast method for the controlled production of various grades of activated and functionalized carbons. The proposed technology is a method to produce mesoporous carbon. The method is simple and can be rapidly carried out in large scale production with common reagents and processing equipment (heat source, acid and carbon source such as cellulose).
  • Water purification
  • Catalysis
  • Energy storage
  • Gas purification
  • Gold purification
  • Metal extraction
  • Water purification
  • Medicine
  • Sewage treatment
  • Air filters in gas masks and respirators
  • Can be carried out in large scale production facility
  • Higher absorption capacity and lower ash content of resultant product
  • Recovered catalyst is reconditioned and reused
STAGE OF DEVELOPMENTActivated carbon samples with varying micropore volume have been produced by this method.
Contact Information
For current licensing status, please contact Jennifer Souter at or (608) 316-4131.
The WiSys Advantage

WiSys Technology Foundation serves the University of Wisconsin System comprehensive campuses by patenting and licensing discoveries to leading companies in Wisconsin, the United States and worldwide. Established in 2000 by the Wisconsin Alumni Research Foundation (WARF) and the UW System, WiSys is building the next generation of patent and licensing opportunities by fostering collaborations among campuses, private research organizations and industry, facilitating high-tech research with grant programs, and promoting student training for employment in a knowledge-based economy. WiSys's income is distributed to the UW campuses, the inventors and their departments to grow future discoveries and educational opportunities.