The catalysis of NAD+ on methanol anode oxidation electrode for direct methanol fuel cell

A tentative idea, of developing a liquid-catalytic system on, methanol anode oxidation was proposed by analyzing the characteristics of methanol anode oxidation in direct methanol fuel cell. The kinetics of methanol oxidation. at a glassy carbon electrode in the presence of nicotinamide adenine dinucleotide ( NAD(+)) was investigated. It is found that the current density of methanol oxidation, increases greatly and the electrochemical reaction, impedance reduces obviously in the presence of NAD(+) compared with those in the absence of NAD(+). The catalytic activity of NAD(+) is sensitive to temperature. When the temperature preponderates over 45 degreesC, NAD(+) is out of function of catalysis for methanol oxidation, which is probably due to the denaturation of NAD(+) at a relatively high temperature.