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Platinum nanoparticles supported by graphene were prepared by the colloid deposition process. The effects of particle size and loading amount of platinum particles on the cataluminescence (CTL) properties of CO have been investigated. The CTL properties and some analysis characteristics of the catalyst on other gas phase systems were explored. The results show that the Pt nanoparticles are well distributed on graphene and a faster catalytic reaction rate is apparent. The smaller particles lead to a higher CTL intensity. When the volume concentration of CO in air is below 40% (渍, volume fraction) the CTL intensity is proportional to the concentration of CO for all the catalysts (0.4%-1.6% (w, mass fraction) Pt). Among them, the catalyst containing 0.8% Pt was found to be the best. However, by increasing the CO concentration the CTL intensity of the catalysts with a low Pt loading (0.4%, 0.8%) decreased while the highly loaded (1.2%, 1.6%) catalysts continued to increase their intensity. Moreover, a higher Pt loading led to a higher CTL intensity. Under certain conditions the catalyst shows good CTL performance for CO oxidation, and ether, methanol as well as toluene show different degrees of response. No response was obtained for carbon dioxide, formaldehyde, glutaraldehyde, acetone, ethyl acetate, chloroform, and water vapor.

Cataluminescence Performance on Catalysts of Graphene Supported Platinum