The Catalysis of NAD^+, NADP^+ and Nicotinic Amide for Methanol Electrooxidation at Platinum Electrode  

作　　者：张萍 

机构地区：[1]School of Materials Science and Chemical Engineering, China University of Geosciences,Wuhan 430074,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2006年第2期6-9,共4页武汉理工大学学报（材料科学英文版）

基　　金：FundedbytheNaturalScienceFoundation(No.20576129)oftheStateKeyLabofAdvancedTechnologyforMaterialsSynthesisandProcessing(WuhanUniversityofTechnology)

摘　　要：A group of liquid catalysts composed of nicotinic amide functioning on the anode of DMFC were investigated at a Pt eleetrode, which were nicotinic amide, nicotinamide adenine dinucleotide （ NAD^＋ ） and its phosphate （ NAD （ P ） ^＋ ）. The kinetics of methanol anode oxidation in the three reaction systems was compared by measuring poteatiodynarnic current-potential curves and AC impedances. The experimeatal results show that the dynamic behavior of methanol oxidation at a Pt electrode has been changed with adding the three substances. The influence of temperature on the catalysis of these coenzymes and nicotinic amicle was discussed by comparing the AC impedances spectra of methanol oxidation at differeat temperatures.A group of liquid catalysts composed of nicotinic amide functioning on the anode of DMFC were investigated at a Pt eleetrode, which were nicotinic amide, nicotinamide adenine dinucleotide （ NAD^＋ ） and its phosphate （ NAD （ P ） ^＋ ）. The kinetics of methanol anode oxidation in the three reaction systems was compared by measuring poteatiodynarnic current-potential curves and AC impedances. The experimeatal results show that the dynamic behavior of methanol oxidation at a Pt electrode has been changed with adding the three substances. The influence of temperature on the catalysis of these coenzymes and nicotinic amicle was discussed by comparing the AC impedances spectra of methanol oxidation at differeat temperatures.

关 键 词：direct methanol fuel cell methanol oxidation liquid catalytic system COENZYME nicotinic amide 

分 类 号：O643.3[理学—物理化学]