Alkaline Methanol Fuel CellSlide 2SystemWhy Methanol Fuel Cell?Methanol Fuel CellBasic InformationMethod of Collecting DataCyclic VoltammetrySlide 9Slide 10ETEK with Nafion (ORR)ETEK with Nafion (HOR and MOR)SeNW (ORR)SeNW (HOR and MOR)Gold NanoTube (ORR)Gold NanoTube (HOR and MOR)Palladium NanotubePalladium Nanotube (HOR and MOR)Silver Nanowire 600 µg (ORR)Silver Nanowire 600 µg (MOR)Silver Nanowire (100 µg)Silver Nanowire 50ug (ORR)Silver Nanowire 50ug (HOR and MOR)Palladium and PlatinumPalladium/Platinum (HOR and MOR)Ag/C (ORR)ConclusionAlkaline Methanol Fuel Cell Tam DuongDr. Yushan YanFuel CellElectrochemical deviceConvert chemical energy into electricity Having two electrodes: Positive (cathode) and Negative (anode)Reaction with the presence of electrolyte.Working depends on the catalystSystemCell system with rotating disk, reference electrode, platinum wire, and gas vent.Why Methanol Fuel Cell?Methanol has high energy density.Easy to store in liquid state in room temperature.Fuel cell works as a battery that doesn’t go down or need to be charged.Highly promising to serve as a power source for cell phones, and laptops.Reduce the pollutionMethanol Fuel CellAlkaline Methanol Fuel Cell: Hydroxide flow from cathode to anode.Waste Products: Water and Carbon DioxideToxic and flammableIn 2005, ICAO (International Civil Avitation Organization) DGP (Dangerous Food Panel) voted to allow passengers to carry and uses micro fuel cell when travelling aboard.OHeOHO6632322OHeOHCOOHOHCH656223CurrentBasic InformationNafion membrane (ionomer)Qualified Power (W): 100 kW to 1MWWorking temperature: 90 – 120 deg C Electrical efficiency:-Cell : 20-30%-System: 10-20%Typical fuel cell: 0.6 – 0.7 VMethod of Collecting DataCoating the glassy carbon electrode with the calculated volume of catalyst•Sample Volume = (Electrode Area)*(Loading/Area)*(Solution Concentration)•10 ul of .05% Nafion Making 250 mL electrolyte (0.1M KOH)  Setting the cell up with Pt wire and the reference electrode Connecting the gas ventBlowing gas into the cell and record dataCyclic VoltammetryOne type of potential electrochemical measurement. (Potential scanning)Forward sweep: reversible oxidationReversed sweep: ReductionUsed to calculate the surface areamAVOxidation ReductionBasic Shape of a CV curveTested SamplesLoadings(µg/cm2)ORR(without MeOH)ORR(With MeOH)MOR HORAg/C 50 + + - -Ag/C 100 + + - -AgNW 50 + + - -AgNW 100 + + - -AgNW 600 + + - -Au 100 + + - -SeNW 300 + + - -PdNT 50 + + + +Pd/Pt 100 + + + +Pd/Pt 150 + + + +Ni 320 + + - -Table of Samples and ResultsCalculating the Theoretical Surface AreadrmA..343Calculating Experimental Surface Area Area (CV graph) [mA.V] x speed [1/V] x ratio [mC/mA]Constant [mC/cm2] x loading [µg/cm2] x area (electrode) [cm2] x 0.77mAETEK with Nafion (ORR)ORR curve without methanolat 5 mV/s scanning speedORR curve with methanol at 5 mV/s scanning speedETEK with Nafion (HOR and MOR)HOR curve with 300 rpm at 5 mV/s scanning speedMOR curve at 50 mV/s scanning speedSeNW (ORR)SeNW (HOR and MOR)HOR curve with 300 rpm at 5 mV/s scanning speedMOR curve at 50 mV/s scanning speedGold NanoTube (ORR)Gold NanoTube (HOR and MOR)HOR with 300 rpm at 5 mV/sMOR at 50 mV/sPalladium NanotubeORR with 1600 rpm at5 mV/sChronoamperometryat -0.15 V vs Hg/HgOPalladium Nanotube (HOR and MOR)HOR with 300 rpm at 5 mV/sMOR at 50 mV/sSilver Nanowire 600 µg (ORR)Silver Nanowire 600 µg (MOR)Silver Nanowire (100 µg)HOR with 300 rpm at 5 mV/sORR with 1600 rpm at 5 mV/sSilver Nanowire 50ug (ORR)Silver Nanowire 50ug (HOR and MOR)HOR with 300 rpm at 5 mV/sMOR at 50 mV/sPalladium and PlatinumORR with 1600 rpm at 5 mV/sChronoamperometry at -0.15 V vs Hg/HgOPalladium/Platinum (HOR and MOR)HOR with 300 rpm at 5 mV/sMOR at 50 mV/sAg/C (ORR)ORR_Ag/C (50 ug/cm2) ORR_Ag/C (100 ug/cm2)Conclusion Platinum nanotube, palladium nanotube work for HOR, MOR, and ORR.Silver on carbon, silver nanowires, gold nanotube, selenium nanowires work for ORR even with methanol.Future WorkTesting platinum/silver alloyMaking silver