Ru-Decorated Pt Surfaces as Model Fuel Cell Electrocatalysts for CO Eletrooxidation

ChemInform ◽  
2005 ◽  
Vol 36 (45) ◽  
Author(s):  
F. Maillard ◽  
G.-Q. Lu ◽  
A. Wieckowski ◽  
U. Stimming
Keyword(s):  
Fuel Cell ◽  
Model Fuel

In situ back-side illumination fluorescence XAFS (BI-FXAFS) studies on platinum nanoparticles deposited on a HOPG surface as a model fuel cell: a new approach to the Pt-HOPG electrode/electrolyte interface

2014 ◽  
Vol 16 (27) ◽  
pp. 13748-13754 ◽  
Author(s):  
Hiromitsu Uehara ◽  
Yohei Uemura ◽  
Takafumi Ogawa ◽  
Kentaro Kono ◽  
Ryoichi Ueno ◽  
...  
Keyword(s):  
Fine Structure ◽  
Fuel Cell ◽  
Back Side ◽  
New Approach ◽  
X Ray ◽  
Model Fuel ◽  
Fluorescence Xafs ◽  
X Ray Absorption ◽  
Side Illumination

We measured the in situ polarization-dependent X-ray absorption fine structure of PtNPs deposited on a flat HOPG substrate.

Development of a Model of on-Board Pemfc Powered Locomotive with a Metal Hydride Cylinder

1995 ◽  
Vol 393 ◽  
Author(s):  
H. Hasegawa ◽  
Y. Ohki
Keyword(s):  
Fuel Cell ◽  
Metal Hydride ◽  
Motor Vehicle ◽  
Traction Force ◽  
Rolling Friction ◽  
Permanent Magnet Motor ◽  
Electric Car ◽  
Model Fuel ◽  
Electric Motor Vehicle ◽  
Surplus Power

ABSTRACTThis paper presents a phase-zero evaluation case of installing on-off-board hybrid powered Electric Motor Vehicle (EMV) in existing and new local line and reports development of a model fuel cell powered locomotive. EMV such as electric car and locomotive are a new conceptual EMV using hybrid power between off-board substation and on-board Regenerative Fuel Cell (RFC) power system with Metal Hydride (MH) stored hydrogen generated with water electrolyzer by off-board surplus power. In this study, it is estimated a possibility to close power gap over 30 % in placing the new conceptual vehicle. The Locomotive is a 110 cm long locomotive powered by a 20 W PEMFC configured with 20 cells and supplied with about 2 g hydrogen, from a cylinder of 100 g metal hydride, and natural convection air (02). Measuring 50 cm (W), 50 cm (H), and weighting 25.9 kgf, the locomotive has a permanent magnet motor with a rated power 38 W (12 V, 3 A) and ran on railway that has a gauge of 126 mm (3'6“/8.5=4.94”), a length of 100 m. The performance of this train was acceleration of 0.5 m/s, cruising speed of 4.1 m/s at traction force of 15.8 N (1.6 kgf), average rolling friction of 5 N (460 gf).

scholarly journals Balance of Nanostructure and Bimetallic Interactions in Pt Model Fuel Cell Catalysts: In Situ XAS and DFT Study

2012 ◽  
Vol 134 (23) ◽  
pp. 9664-9671 ◽  
Author(s):  
Daniel Friebel ◽  
Venkatasubramanian Viswanathan ◽  
Daniel J. Miller ◽  
Toyli Anniyev ◽  
Hirohito Ogasawara ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Dft Study ◽  
In Situ Xas ◽  
Model Fuel ◽  
Fuel Cell Catalysts

The effect of fuel gas mixtures and air flow rates on electrical properties of solid oxide fuel cell

2021 ◽  
Vol 2021 (3) ◽  
pp. 119-126
Author(s):  
N. O. Lysunenko ◽  
◽  
Y. M. Brodnikovskyi ◽  
V. I. Chedryk ◽  
D. M. Brodnikovskyi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Electrical Properties ◽  
Solid Oxide Fuel Cell ◽  
Gas Flow ◽  
Optimal Operation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Flow Rates ◽  
Model Fuel

Fuel Cells are one of the most efficient and environmentally friendly devices for electricity generation, which are developing rapidly and are already in the early stages of commercialization. Solid Oxide Fuel Cells (SOFC) areone of the most promising their types due to the highest efficiency, fuel flexibility (H2, CnHm, CO etc.) and no needs in platinum group catalysts. The performance of SOFC is affected by various polarization losses, which aredependant on selected materials, their structure and SOFC operation parameters. Over the last decade, much attention is given to the study of SOFC’s electrochemical properties at different operating regimes: temperatures, fuels, fuel and oxidantflow rates etc. The work is devoted to studying the influence of the model fuel (5% H2—Ar) and air (oxidant) flow rates on electrical properties of Solid Oxide Fuel Cellat 800 °C to determine the best combination of gas flow rates, which provide the maximum values of specific electric power. The fuel (0,35 l/min) and oxidant (1 l/min)flow rates was found as the optimal operation regime of fuel and air supply for the SOFC tested. The highest electrical densityto be ensured by the model fuel was determined as 34 mW/cm2. The amount / flow rate of oxidant and fuel gases supplied to the fuel cell does not correspond to the ratio of the reagents of the chemical reaction of oxidation of the fuel. This difference is explained by the fact that the SOFC effectiveness of fuel and oxidant utilization depends not only from to the properties structure and materials of each components: anode, cathode, electrolyte, but also from concentration of fuel and oxidant in model fuel or air, which also creates a barrier for oxidant and fuel molecules to reach the reaction zone. Keywords: Solid Oxide Fuel Cell, electrical properties, fuelgasmixtures, hydrogen, oxidant.

Ru-Decorated Pt Surfaces as Model Fuel Cell Electrocatalysts for CO Electrooxidation

2005 ◽  
Vol 109 (34) ◽  
pp. 16230-16243 ◽  
Author(s):  
F. Maillard ◽  
G.-Q. Lu ◽  
A. Wieckowski ◽  
U. Stimming
Keyword(s):  
Fuel Cell ◽  
Co Electrooxidation ◽  
Model Fuel
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