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The fuel cell has a fuel easy to transport and storage , light weight , small size , simple structure , high energy efficiency and low pollution , etc. , and has broad prospects for development in the field of portable power , and electric vehicles . Many types of fuel cells , the most studied is the direct methanol fuel battery ( DMFC ) . Used in DMFC fuel methanol the anode oxidation rate is slow and methanol permeability , however , two major technical challenges hindering DMFC process . In this thesis, new methods and new materials for DMFC anode catalyst preparation , effects of various preparation parameters and various carbon materials , the degree of alloying of the catalyst metal particles , the average particle size , the relative degree of crystallinity , dispersion and anode catalyst electrochemical activity and stability . Study a the DMFC anode Pt-Ru/CMK-3 catalyst and obtained Pt-Ru/CMK-3 of catalyst complex reduction method to prepare the electrocatalytic activity for methanol oxidation . Restore the prepared Pt-Ru/CMK-3 catalyst with the complex , the use of a mixed solvent of THF and H2O . THF forming a complex with H2PtCl6 , H2PtCl6 and RuCl3 similar reduction potential . Therefore , H2PtCl6 and RuCl3 basically simultaneously restore the Pt-Ru, in the obtained Pt-Ru/CMK-3 catalyst particles having a high degree of alloying , also found that the volume ratio of THF and H2O substantially the degree of alloying nothing to do . Paraformaldehyde as the reducing agent , the use of liquid-phase reduction Prepared Pt/CMK-3 of catalyst . The results show that the ordered mesoporous carbon CMK-3 with a regular two-dimensional ordered pore structure , providing a convenient path for DMFC in the electronic transmission and fuel , while it is larger than the surface area of ??the Pt nanoparticles were well dispersed on its surface ; Pt/CMK-3 catalyst , the Pt particles have an average particle diameter of 2.8 nm, is less than the E-TEK Company commercialization Pt/XC-72 and with methanol as the reducing agent prepared Pt / CM catalyst .
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