Activated carbon and method of fabrication thereof
AssigneesNational University of Singapore, Sembcorp Industries Ltd
InventorsChi-Hwa Wang, Babu Cadiam Mohan, Zhiyi Yao, Anbu Mozhi Thamizhchelvan
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Abstract
The present invention relates, in general terms, to methods of forming activated carbon. The method of forming activated carbon comprises mixing carbon black with an activation catalyst and heating the carbon black in order to form the activated carbon. The present invention also relates to applications of activated carbon as disclosed herein. In a preferred embodiment, the activation catalyst is selected from ammonium persulfate, sodium persulfate, potassium persulfate or a combination thereof.
Claims17
A method of forming activated carbon, comprising:
- a) mixing carbon black with an activation catalyst in a polar solvent to form a mixture;
- and
- b) heating the mixture at about 350° C. to about 500° C. in order to form the activated carbon;
- wherein the weight ratio of carbon black to activation catalyst is of about 1:0.1 to about 1:0.5;
- wherein the activation catalyst is selected from ammonium persulfate, sodium persulfate, potassium persulfate or a combination thereof,
- wherein the method further comprises adding a co-catalyst to the mixture of step a);
- and
- wherein the co-catalyst is ammonia or ammonium hydroxide.
A method of forming silane functionalised activated carbon, comprising:
- a) mixing carbon black with a silane agent and an activation catalyst in a polar solvent to form a mixture;
- and
- b) heating the mixture at about 350° C. to about 500° C. in order to form the silane functionalised activated carbon;
- wherein the weight ratio of carbon black to activation catalyst is of about 1:0.1 to about 1:0.5;
- and
- wherein the activation catalyst is selected from acetic acid and/or ammonia.
Dependencies are inferred from the claim text.