...Robb Engle The following discusses the method and advantages of ultrasonic deposition of carbon-based platinum ink solution onto catalytic membranes in the manufacture of platinum-based fuel cells, doubling industry standard performances. Using patented ultrasonic atomization technology (Ultrasonic...

... anodes carbon cathodes chemical exchanges differential equations direct methanol fuel cells electrochemical electrodes membranes permeability platinum ruthenium thermal analysis chitosan membrane fuel cell water content membrane resistance The world today is completely...

... with eliminated catalyst ink, respectively. The cost of cathode and anode catalysts for both fuel cell systems is calculated as detail of design assumptions appeared in Table 2 . anodes carbon catalysts cobalt electrochemical electrodes fuel cells iridium molybdenum nickel platinum ruthenium...

...R. Giorgi; L. Giorgi; S. Gagliardi; E. Salernitano; M. Alvisi; Th. Dikonimos; N. Lisi; D. Valerini; M. F. De Riccardis; E. Serra The real market penetration of polymer electrolyte fuel cells is hindered by the high cost of this technology mainly due to the expensive platinum catalyst. Two...

... area after 5000 potential cycles while it is as high as 25% for Pt/C. 15 03 2010 16 07 2010 24 11 2010 24 11 2010 carbon electrochemical electrodes platinum proton exchange membrane fuel cells sol-gel processing titanium compounds polymer electrolyte fuel cells...

... cells electroless deposition nanoparticles oxidation platinum ruthenium platinum ruthenium deposition fuel cell methanol Direct methanol fuel cells (DMFCs) can have high energy density if concentrated methanol can be used as the fuel. They are potentially useful as a compact power...

... 2009 cerium cermets electrochemical electrodes lanthanum nickel platinum praseodymium reduction (chemical) ruthenium scandium compounds solid oxide fuel cells yttrium compounds zirconium SOFC composite anodes Ni/8YSZ and Ni/ScCeSZ methane steam reforming perovskite...

... and water. A single 1 mm diameter monolith reactor channel coated with platinum catalyst is modeled in this work. The inlet stream composition is provided by a semi-analytical 2D model of a detailed SOFC system. The model of the postcombustor includes the 2D axisymmetric Navier–Stokes equations, heat...

... is prepared using E-TEK Inc. platinum and iridium catalysts loaded on Vulcan XC-72. Platinum catalyst is used for the hydrogen electrode. 50 wt % platinum∕ 50 wt % iridium catalyst is used for the oxygen electrode. The metal weight on carbon is 30% for both the platinum and iridium catalysts. Water management...

.... 08 12 2005 08 09 2006 proton exchange membrane fuel cells catalysts platinum nanoparticles oxidation carbon nanotubes pyrolysis particle size electrochemical analysis electrochemical electrodes ammonium compounds platinum compounds ruthenium palladium dissolving organic...

..., especially at current density due to the membrane resistive losses. 11 12 2005 04 05 2006 proton exchange membrane fuel cells electrochemical electrodes carbon aerogels platinum catalysts oxidation carbon aerogel PEMFC aerogel-supported catalyst Proton exchange...

... carbon platinum One of the challenges to be met in carbon-based electrocatalysts used in fuel cells is the reduction of noble metal loadings and the improvement of the electrocatalytic activity per unit mass of noble metal. Novel carbon supported catalysts such as high surface area graphites...

...R. F. Louh; Hansen Huang; Felix Tsai Nanosized platinum particles supported on carbon black carriers ( Pt ∕ C ) are popular for use in fabrication of proton exchange membrane fuel cells (PEMFCs). Here, an electrophoretic deposition (EPD) process is proposed to investigate the power performance...

... and discussed. Polycrystalline films of platinum (Pt) and silver (Ag) were, respectively, tested as anode catalysts in a wide range of experimental conditions while the cathode was exposed to the atmospheric air. The single direct ethanol solid oxide fuel cell (DE-SOFC) tests were performed in order...

... platinum optimisation nafion zirconium oxide composite membranes electrodes PEFCs In the last period many studies were carried out to develop components (membranes and electrodes) for PEFCs able to operate at temperature higher than 100 ° C ( 1 2 ). In fact by operating...

...Jia Rong-Li; Wang Cheng-Yang; Zhu Bin Superfine mesocarbon microbead powders (SFMCMBs) as the new supports for platinum electrocatalysts were first investigated. The Pt ∕ SFMCMB electrocatalysts were prepared by an impregnation-reduction method, with hexachloroplatinic acid as the platinum...

.... Fresh mixture of electrolyte, potassium hydroxide (5M), and fuel (2M) was fed to AFC and withdrawn at a rate of 1 ml ∕ min . The anode was prepared by dispersing platinum and activated carbon in Nafion® (DuPont USA) dispersion and placing it onto a carbon paper (Lydall, USA). Finally prepared anode...