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

Abstract

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.

A General Strategy for the Preparation of Hollow Carbon Nanocages by NH4Cl‐Assisted Low‐Temperature Heat Treatment

“…[5][6][7] Carbon nanocages (CNCs) have a special hollow structure with graphitic shells and show excellent performance as a catalyst support in proton exchange membrane fuel cells (PEMFC). [8][9][10][11] To date, some methods have been developed to prepare CNCs. [8,9,[12][13][14][15] Chemical vapor deposition (CVD) is a widely employed technique due to its simplicity and high yield.…”

Development of Carbon Materials for Energy and Environmental Applications

“…The feature common to all the cyclic voltammograms is that one anodic peak is observed in the forward scan and another in the reverse scan. The anodic peak in the forward scan is attributed to oxidation of MeOH [13][14][15][16][17][18]. The anodic peak in the reverse scan is attributed to the removal of the incompletely oxidized carbonaceous species (mostly in the form of linearly bonded Pt=C=O) formed in the forward scan [13].…”

Electrochemical investigation of electrodeposited platinum nanoparticles on multi walled carbon nanotubes for methanol electro-oxidation

“…Numerous research groups have successfully synthesized composites of PtNPs on the surface of CNTs using different methods and have investigated their performance. [4][5][6] With a high aspect ratio, excellent electrical properties, and chemical stability as a support, multiwall carbon nanotubes (MWCNTs) are being studied extensively to improve catalyst efficiency and electrochemical activity of fuel cells. [7][8][9][10] Among different techniques, electrophoretic deposition (EPD) has attracted substantial attention as a method that is efficient, simple and suitable for mass production of the fabrication of coatings or films of MWCNTs on conductive substrates.…”