Benchmarking high surface area electrocatalysts in a gas diffusion electrode: measurement of oxygen reduction activities under realistic conditions

2018 ◽  
Vol 11 (4) ◽  
pp. 988-994 ◽  
Author(s):  
Masanori Inaba ◽  
Anders Westergaard Jensen ◽  
Gustav Wilhelm Sievers ◽  
María Escudero-Escribano ◽  
Alessandro Zana ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
Gas Diffusion Electrodes ◽  
Electrocatalytic Performance ◽  
Fuel Cell Catalysts

In this work, we introduce the application of gas diffusion electrodes (GDE) for benchmarking the electrocatalytic performance of high surface area fuel cell catalysts.

Surfactant free synthesis of high surface area Pt@PdM3 (M = Mn, Fe, Co, Ni, Cu) core/shell electrocatalysts with enhanced electrocatalytic activity and durability for PEM fuel cell applications

2016 ◽  
Vol 40 (10) ◽  
pp. 8681-8695 ◽  
Author(s):  
Karuppannan Mohanraju ◽  
Govindarajan Kousik ◽  
Louis Cindrella
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Surface Area ◽  
Electrocatalytic Activity ◽  
High Surface ◽  
High Surface Area ◽  
Pem Fuel Cell ◽  
Core Shell ◽  
Oxygen Reduction Reactions ◽  
Shell Nanostructures

High surface area core/shell nanostructures of Pt covered Pd alloys were synthesized and they exhibited enhanced electrocatalytic activity in oxygen reduction reactions.

The particle proximity effect: from model to high surface area fuel cell catalysts

RSC Advances ◽  
2014 ◽  
Vol 4 (29) ◽  
pp. 14971 ◽  
Author(s):  
Jozsef Speder ◽  
Lena Altmann ◽  
Marcus Bäumer ◽  
Jacob J. K. Kirkensgaard ◽  
Kell Mortensen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
Proximity Effect ◽  
High Surface ◽  
High Surface Area ◽  
Fuel Cell Catalysts

High surface area mesoporous LaFexCo1−xO3 oxides: synthesis and electrocatalytic property for oxygen reduction

2013 ◽  
Vol 42 (26) ◽  
pp. 9448 ◽  
Author(s):  
Yongxia Wang ◽  
Xiangzhi Cui ◽  
Yongsheng Li ◽  
Lisong Chen ◽  
Zhu Shu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Electrocatalytic Property

scholarly journals Operando SAXS Study of a Pt/C Fuel Cell Catalyst with an X-ray Laboratory Source

2021 ◽  
Author(s):  
Johanna Schröder ◽  
Jonathan Quinson ◽  
Jacob J. K. Kirkensgaard ◽  
Matthias Arenz
Keyword(s):  
Fuel Cell ◽  
Background Subtraction ◽  
Stress Test ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Support ◽  
Grazing Incidence ◽  
Saxs Data ◽  
X Ray ◽  
Fuel Cell Catalysts

Small angle X-ray scattering (SAXS) is a powerful technique to investigate the degradation of catalyst materials. Ideally such investigations are performed <i>operando</i>, i.e., during a catalytic reaction. An example of <i>operando </i>measurements is to observe the degradation of fuel cell catalysts during an accelerated stress test (AST). Fuel cell catalysts consist of Pt or Pt alloy nanoparticles (NPs) supported on a high surface area carbon. A key challenge of operando SAXS measurements is a proper background subtraction of the carbon support to extract the information of the size distribution of the Pt NPs as a function of the AST treatment. Typically, such operando studies require the use of synchrotron facilities. The background measurement can then be performed by anomalous SAXS (aSAXS) or in a grazing incidence con-figuration. In this work we present a proof-of-concept study demonstrating the use of a laboratory X-ray diffractometer for <i>operando </i>SAXS. Data acquisition of <i>operando </i>SAXS with a laboratory X-ray diffractometer is desirable due to the general challenging and limited accessibility of synchrotron facilities. They become even more crucial under the ongoing and foreseen restrictions related to the COVID-19 pandemic. Although, it is not the aim to completely replace synchrotron-based studies, it is shown that the background subtraction can be achieved by a simple experimental consideration in the setup that can ultimately facilitate <i>operando </i>SAXS measurements at a synchrotron facility. <br>

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