Electrocatalytical Activity on Oxidizing Hydrogen and Methanol of Novel Carbon Nanocages of Different Pore Structures with Various Platinum Loadings

Novel carbon nanocages (CNCs) with various pore structures were produced at different temperatures and were subsequently deposited with Pt particles by a simple liquid reduction method with chloroplatinic acid as the Pt source and ethylene glycol as the reducing agent. The chloroplatinic acid was separately dropped and induced an excellent Pt particle distribution with small size. The electrocatalytical activity of the CNCs with Pt loadings was analyzed by cyclic voltammograms (CVs) in H2SO4 and H2SO4/CH3OH solutions. Excellent electrocatalytical activity was presented compared with the commercial Pt/C catalyst. The specific surface area (SSA) and graphitic structure played an important role on the electrochemical activity. The Pt/CNCs catalyst with CNCs fabricated at 900 °C possesses not only good catalytic characteristics but also high economic yield.