A Methanol-Dimethyl Ether Mixed Steam Feed Fuel Cell System
A fuel cell system and fuel cell technology, used in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of slow electro-oxidation rate and low performance of dimethyl ether, and improve cell performance and fuel penetration. The effect of reducing and simplifying the system structure
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Embodiment 1
[0037] Membrane electrode composition: the gas diffusion layer of the cathode and anode is TGP-060; the anode microporous layer is a mixture of 0.5mg / cm2 carbon powder and Nafion, and the mass fraction of Nafion is 10%; the anode catalyst layer is PtRuPd / C, Nafion mixture, wherein the massfraction of Nafion is 15%. The anode microporous layer is 2mg / cm carbon powder, PTFE mixture, and wherein the massfraction of PTFE is 30%; Because the extremely catalytic layer is Pt / C, Nafion solution mixture, wherein The mass fraction of Nafion is 20%. The proton exchange membrane used is Nafion212.
[0038] Photos of the above formula materials figure 1 Arranged in sequence, hot pressing at 120°C and 2,000 pounds of pressure for one minute to make an integrated membrane electrode. A stainless steel end plate with a dotted flow field, and the above-mentioned integrated membrane electrode are assembled into a battery in sequence.
[0039] Pass the methanol-dimethyl ether mixed solution (...
Embodiment 2
[0043] Membrane electrode composition: the gas diffusion layer of the cathode and anode is TGP-060; the anode microporous layer is a mixture of 0.5mg / cm2 carbon powder and Nafion, and the mass fraction of Nafion is 10%; the anode catalyst layer is PtRuSn / C, Nafion mixture, wherein the mass fraction of Nafion is 15%. The anode microporous layer is 2mg / cm 2 carbon powder, PTFE mixture, wherein the mass fraction of PTFE is 30%; because the extremely catalytic layer is a Pt / C, Nafion solution mixture, wherein the mass fraction of Nafion is 20%. The proton exchange membrane used is Nafion212. In order to improve the water return ability of the cathode, a water-blocking layer is added between the cathode diffusion layer and the plate. Its main composition is a mixture of carbon powder and PTFE, and the load is 0.8mg / cm 2 . The above materials were hot-pressed at 120°C and 2,000 pounds of pressure for one minute to make an integrated membrane electrode. A stainless steel end plate...
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