Catalyst Layer Modeling: Structure, Properties and Performance

2008 ◽  
pp. 381-446 ◽  
Author(s):  
Michael H. Eikerling ◽  
Kourosh Malek ◽  
Qianpu Wang
Keyword(s):  
Catalyst Layer ◽  
And Performance ◽  
Structure Properties

Trace nanoanalysis

1994 ◽  
Vol 52 ◽  
pp. 940-941
Author(s):  
D. E. Newbury ◽  
R. D. Leapman
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Detection Efficiency ◽  
Volume Element ◽  
And Performance ◽  
Trace Constituents ◽  
Secondary Ion ◽  
Concentration Levels ◽  
Structure Properties

Trace constituents, which can be very loosely defined as those present at concentration levels below 1 percent, often exert influence on structure, properties, and performance far greater than what might be estimated from their proportion alone. Defining the role of trace constituents in the microstructure, or indeed even determining their location, makes great demands on the available array of microanalytical tools. These demands become increasingly more challenging as the dimensions of the volume element to be probed become smaller. For example, a cubic volume element of silicon with an edge dimension of 1 micrometer contains approximately 5×1010 atoms. High performance secondary ion mass spectrometry (SIMS) can be used to measure trace constituents to levels of hundreds of parts per billion from such a volume element (e. g., detection of at least 100 atoms to give 10% reproducibility with an overall detection efficiency of 1%, considering ionization, transmission, and counting).

scholarly journals Cardiac Tissue Structure, Properties, and Performance: A Materials Science Perspective

2014 ◽  
Vol 42 (10) ◽  
pp. 2003-2013 ◽  
Author(s):  
Mark Golob ◽  
Richard L. Moss ◽  
Naomi C. Chesler
Keyword(s):  
Cardiac Tissue ◽  
Materials Science ◽  
Tissue Structure ◽  
And Performance ◽  
Structure Properties

The effect of active screen plasma treatment conditions on the growth and performance of Pt nanowire catalyst layer in DMFCs

2016 ◽  
Vol 41 (18) ◽  
pp. 7622-7630 ◽  
Author(s):  
Kaijie Lin ◽  
Yaxiang Lu ◽  
Shangfeng Du ◽  
Xiaoying Li ◽  
Hanshan Dong
Keyword(s):  
Plasma Treatment ◽  
Catalyst Layer ◽  
Treatment Conditions ◽  
And Performance ◽  
Active Screen

Effects of Ink Formulation on the Structure and Performance of PGM-Free Catalyst Layer in PEMFCs

2021 ◽  
Vol 104 (8) ◽  
pp. 327-333
Author(s):  
Chenzhao Li ◽  
Shengwen LIU ◽  
Yachao Zeng ◽  
Yadong Liu ◽  
Gang Wu ◽  
...  
Keyword(s):  
Catalyst Layer ◽  
And Performance ◽  
Ink Formulation

Materials: Structure, Properties, and Performance

2012 ◽  
pp. 1-70 ◽  
Author(s):  
Marc Andre Meyers ◽  
Krishan Kumar Chawla
Keyword(s):  
And Performance ◽  
Structure Properties

An Overview of Aircraft Accident Investigation and Component Failures

2021 ◽  
pp. 778-786
Author(s):  
Ellen E. Wright ◽  
Suzanne F. Uchneat
Keyword(s):  
Case Studies ◽  
Environmental Effects ◽  
System Level ◽  
Accident Investigation ◽  
Materials Engineering ◽  
Aircraft Component ◽  
And Performance ◽  
Aircraft Accident ◽  
Component Failures ◽  
Structure Properties

Abstract This article focuses on failure analyses of aircraft components from a metallurgical and materials engineering standpoint, which considers the interdependence of processing, structure, properties, and performance of materials. It discusses methodologies for conducting aircraft investigations and inspections and emphasizes cases where metallurgical or materials contributions were causal to an accident event. The article highlights how the failure of a component or system can affect the associated systems and the overall aircraft. The case studies in this article provide examples of aircraft component and system-level failures that resulted from various factors, including operational stresses, environmental effects, improper maintenance/inspection/repair, construction and installation issues, manufacturing issues, and inadequate design.

scholarly journals Effect of extended short-circuiting in proton exchange membrane fuel cells

2020 ◽  
Vol 4 (11) ◽  
pp. 5739-5746
Author(s):  
Panagiotis Trogadas ◽  
Jason I. S. Cho ◽  
Nidhi Kapil ◽  
Lara Rasha ◽  
Albert Corredera ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Detrimental Effect ◽  
Catalyst Layer ◽  
Proton Exchange ◽  
And Performance ◽  
Exchange Membrane

The detrimental effect of extended short-circuiting in the degradation of catalyst layer and performance of proton exchange membrane fuel cells.

Sign in / Sign up

Export Citation Format

Share Document