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

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

Proton exchange membrane fuel cells powered with both CO and H2

2021 ◽  
Vol 118 (43) ◽  
pp. e2107332118
Author(s):  
Xian Wang ◽  
Yang Li ◽  
Ying Wang ◽  
Hao Zhang ◽  
Zhao Jin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Peak Power ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Single Atom ◽  
Anode Catalysts ◽  
Co Electrooxidation ◽  
Co Activation ◽  
Maximum Current ◽  
Exchange Membrane

The CO electrooxidation is long considered invincible in the proton exchange membrane fuel cell (PEMFC), where even a trace level of CO in H2 seriously poisons the anode catalysts and leads to huge performance decay. Here, we describe a class of atomically dispersed IrRu-N-C anode catalysts capable of oxidizing CO, H2, or a combination of the two. With a small amount of metal (24 μgmetal⋅cm−2) used in the anode, the H2 fuel cell performs its peak power density at 1.43 W⋅cm−2. When operating with pure CO, this catalyst exhibits its maximum current density at 800 mA⋅cm−2, while the Pt/C-based cell ceases to work. We attribute this exceptional catalytic behavior to the interplay between Ir and Ru single-atom centers, where the two sites act in synergy to favorably decompose H2O and to further facilitate CO activation. These findings open up an avenue to conquer the formidable poisoning issue of PEMFCs.

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.

Platinum Activity for CO Electrooxidation: from Single Crystal Surfaces to Nanosurfaces and Real Fuel Cell Nanoparticles

2012 ◽  
Vol 3 (3-4) ◽  
pp. 304-312 ◽  
Author(s):  
Christophe Coutanceau ◽  
Claude Lamy ◽  
Patrick Urchaga ◽  
Stève Baranton
Keyword(s):  
Fuel Cell ◽  
Single Crystal ◽  
Crystal Surfaces ◽  
Single Crystal Surfaces ◽  
Co Electrooxidation

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
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