Indian scientists develop nanocomposite that clean air
Ateam of scientists at the Indian Institute of Technology (IIT) Gandhinagar have developed a nanocomposite material that can selectively convert environmental carbon monoxide into less toxic carbon dioxide.
The new composite material is made of graphene and alloy of platinum and palladium in the form of nanoparticles. Graphene was used as substrate and then ‘decorated’ with alloy nanoparticles of platinum and palladium. The novel catalytic structure was then used for selective oxidation of CO into CO .
2 The use of metal particle of certain orientation which absorb or interact with CO at lower energy helped the conversion.
The study was done by researchers from IIT Gandhinagar, in collaboration with scientists from IIT Kanpur and University of Campinas, Brazil. The research results have been published in journal Nanoscale of the Royal Society of Chemistry.
The catalytic behaviour of the nanocomposite was studied using different morphologies for the oxidation of CO. The conversion rate varied along with the flow rate of CO as well as temperature, showing full conversion at temperatures ranging from 75 to 125 degrees.
The new material could potentially find use in chemical industries as well as environmental cleaning, researchers said.