What is the methanol fuel cell, methanol fuel cell electrode reaction
methanol reorganization of the hydrogen fuel cell car industry has been one of the hot hot spot content, one for methanol reorganization of the hydrogen fuel cell vehicles have from hydrogen station construction lagging, hydrogen production box, namely benefit of hydrogen purity requirement is higher; Complexity, meanwhile the existence of systems, increase volume weight, need of control system to complete the dynamic regulation of additional disadvantage. There are still a lot of friend don't know what is methanol fuel cell, methanol fuel cell electrode reaction, that today we are nimh battery manufacturer to take everyone to take a look at.
what methanol fuel cell is
methanol fuel cells belong to the proton exchange membrane fuel cell ( PEMFC) One of kind, can be directly the safe use of methanol aqueous solution or steam methanol as fuel supply source, without restructuring hydrogen production by methanol and diesel and gas for power generation. Compared with proton exchange membrane fuel cell ( PEMFC) , methanol fuel cell ( DMFC) With low temperature, fuel powered up for clean energy conservation, environmental protection and battery characteristics such as simple structure. This prompted can methanol fuel cell ( DMFC) Will become the mainstream of mobile electronic devices use products in the future.
the role of methanol fuel cell
1. Low carbon environmental protection, green health
alcohol reorganization of the hydrogen fuel cell vehicles have very obvious role in low carbon environmental protection, its safe use cost and purchase cost relatively pure hydrogen fuel cell vehicles are lower.
2。 Prompted the cost greatly reduced
operating cost, the present stage of pure hydrogen fuel cell vehicles hydrogen production cost is about 2 yuan/kWh, such as electrolytic hydrogen production is the cost will be even more important, it also does not contain the hydrogen storage, logistics, transportation and filling stations of the investment and operation management fees, etc.
methanol fuel cell with platinum for poles, with alkali or acid as electrolyte:
1. The electrolyte is NACl solution ( Neutral electrolyte)
the cathode electrode reaction is: e - H2 + 2 = 2 h + positive electrode reaction is: O2 + H2O + 4 e - = 4哦- - -
note: three. No H + in alkaline solution of reactants and products;
2。 In acidic solution of reactants and products were no OH - ;
3。 No H + and OH - in neutral solution of reactants ;
4。 Don't make O2 - in aqueous solution 。
2. Alkaline electrolyte ( KOH solution as an example)
total reactive: o2 ch4o 2 + 3 + 4 k2co3 koh = 2 + 6 h2o
the anode electrode reaction is: 3 o2 + e - 12 + 6水= 12哦,
the cathode electrode reaction for: CH4O - 6e- + 8哦- = CO32 - + 6 h2o
3. Acidic electrolyte ( - H2SO4 solution, for example)
total response: 2 ch4o o2 co2 = 2 + 3 + 4 h2o
the anode electrode reaction is: 3 o2 + e - 12 12 h + 6 h2o + =
the cathode electrode reaction is: 2 ch4o - 12e- 12 h + co2 + 2 + 2 h2o =
the anode electrode reaction for: O2 + 4 h + + e - 4 =2H2O( O2+4e- = O2 - O2 - +4H+=2H2O)