Pt Submonolayers on Ru Nanoparticles: A Novel Low Pt Loading, High CO Tolerance Fuel Cell Electrocatalyst

2001 ◽  
Vol 4 (12) ◽  
pp. A217 ◽  
Author(s):  
S. R. Brankovic ◽  
J. X. Wang ◽  
R. R. Adžić
Keyword(s):  
Fuel Cell ◽  
Co Tolerance ◽  
Ru Nanoparticles ◽  
Low Pt Loading ◽  
Fuel Cell Electrocatalyst

A framework ensemble facilitates high Pt utilization in a low Pt loading fuel cell

2021 ◽  
Vol 11 (8) ◽  
pp. 2957-2963
Author(s):  
Jian Wang ◽  
Guangping Wu ◽  
Wenhui Xuan ◽  
Lishan Peng ◽  
Yong Feng ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Phase Field ◽  
Active Sites ◽  
Catalyst Layer ◽  
Three Phase ◽  
Pt Utilization ◽  
The Cross ◽  
Low Pt Loading ◽  
Effective Transfer

Rationally designing the structure of catalyst layer in MEA to achieve the dispersion of active sites at the cross of three-phase field and the effective transfer network paths for protons through catalysts and catalyst layer.

CO tolerance and CO oxidation at Pt and Pt–Ru anode catalysts in fuel cell with polybenzimidazole–H3PO4 membrane

2010 ◽  
Vol 55 (20) ◽  
pp. 6073-6080 ◽  
Author(s):  
A.D. Modestov ◽  
M.R. Tarasevich ◽  
V.Ya. Filimonov ◽  
E.S. Davydova
Keyword(s):  
Fuel Cell ◽  
Co Oxidation ◽  
Anode Catalysts ◽  
Co Tolerance

ChemInform Abstract: Platinum Supported on Silicon Carbide as Fuel Cell Electrocatalyst.

ChemInform ◽  
1988 ◽  
Vol 19 (31) ◽  
Author(s):  
A. HONJI ◽  
T. MORI ◽  
Y. HISHINUMA ◽  
K. KURITA
Keyword(s):  
Silicon Carbide ◽  
Fuel Cell ◽  
Fuel Cell Electrocatalyst

scholarly journals Intermetallic Platinum Alloy Nanoparticles and Single Atoms Hybrid Electrocatalysts for Proton Exchange Membrane Fuel Cells

2021 ◽  
Author(s):  
Minhua Shao ◽  
Fei Xiao ◽  
Qi Wang ◽  
Gui-Liang Xu ◽  
Xueping Qin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Active Sites ◽  
Proton Exchange Membrane ◽  
Synergistic Effects ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Alloy Nanoparticles ◽  
Single Atoms ◽  
Low Pt Loading ◽  
Exchange Membrane

Abstract Proton exchange membrane fuel cell converts hydrogen and oxygen into electricity with zero emission1. The high cost and low durability of Pt-based electrocatalysts for oxygen reduction reaction hinder its wide applications2,3. The development of non-precious metal electrocatalysts also reaches the bottleneck because of the low activity and durability4,5. Here we rationally design a hybrid electrocatalyst consisting of atomically dispersed Pt and Fe single atoms and intermetallic PtFe alloy nanoparticles. The Pt mass activity of the hybrid catalyst is 3.5 times higher than that of commercial Pt/C in a fuel cell. More importantly, the fuel cell with an ultra-low Pt loading in the cathode (0.015 mgPt cm-2) shows unprecedented durability, with 93.6% activity retention after 100,000 cycles and no noticeable current drop at 0.6 V for at least 206 h. These results highlight the importance of the synergistic effects among active sites in hybrid electrocatalysts and provide an alternative way to design more active and durable low-Pt electrocatalysts for electrochemical devices.

Platinum Dissolution and Redeposition from Pt/C Fuel Cell Electrocatalyst at Potential Cycling

2018 ◽  
Vol 165 (6) ◽  
pp. F3161-F3165 ◽  
Author(s):  
Andraž Pavlišič ◽  
Primož Jovanovič ◽  
Vid Simon Šelih ◽  
Martin Šala ◽  
Nejc Hodnik ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Potential Cycling ◽  
Platinum Dissolution ◽  
Fuel Cell Electrocatalyst
Sign in / Sign up

Export Citation Format

Share Document