Theoretical analysis of electrochemical surface-area loss in supported nanoparticle catalysts

2014 ◽  
Vol 16 (48) ◽  
pp. 26876-26886 ◽  
Author(s):  
Steven G. Rinaldo ◽  
Patrick Urchaga ◽  
Jingwei Hu ◽  
Wendy Lee ◽  
Jürgen Stumper ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Surface Area ◽  
Electrochemical Surface Area ◽  
Nanoparticle Catalysts ◽  
Area Loss ◽  
Supported Nanoparticle Catalysts

Dynamics of Particle Growth and Electrochemical Surface Area Loss due to Platinum Dissolution

2014 ◽  
Vol 161 (3) ◽  
pp. F291-F304 ◽  
Author(s):  
Rajesh K. Ahluwalia ◽  
Srikanth Arisetty ◽  
Jui-Kun Peng ◽  
Ram Subbaraman ◽  
Xiaoping Wang ◽  
...  
Keyword(s):  
Surface Area ◽  
Particle Growth ◽  
Electrochemical Surface Area ◽  
Area Loss ◽  
Platinum Dissolution

scholarly journals Disorders of the erythrocyte membrane

2015 ◽  
Vol 9 (4) ◽  
pp. 323
Author(s):  
Sophia Delicou ◽  
Aikaterini Xydaki ◽  
Chryssanthi Kontaxi ◽  
Konstantinos Maragkos
Keyword(s):  
Surface Area ◽  
Erythrocyte Membrane ◽  
Structural Integrity ◽  
Mechanical Stability ◽  
Hereditary Spherocytosis ◽  
Membrane Surface ◽  
Membrane Skeleton ◽  
Inherited Disorders ◽  
Hereditary Elliptocytosis ◽  
Area Loss

Hemolytic anemia due to abnormalities of the erythrocyte membrane comprises an important group of inherited disorders. These include hereditary spherocytosis, hereditary elliptocytosis, hereditary pyropoikilocytosis, and the hereditary stomatocytosis syndromes. The erythrocyte membrane skeleton composed of spectrin, actin, and several other proteins is essential for the maintenance of the erythrocyte shape, reversible deformability, and membrane structural integrity in addition to controlling the lateral mobility of integral membrane proteins. These disorders are characterized by clinical and laboratory heterogeneity and, as evidenced by recent molecular studies, by genetic heterogeneity. Defects in various proteins involved in linking the lipid bilayer to membrane skeleton result in loss in membrane cohesion leading to surface area loss and hereditary spherocytosis while defects in proteins involved in lateral interactions of the spectrin-based skeleton lead to decreased mechanical stability, membrane fragmentation and hereditary elliptocytosis. The disease severity is primarily dependent on the extent of membrane surface area loss. Treatment with splenectomy is curative in most patients.

Dissolution and surface area loss of platinum nanoparticles under potential cycling

2011 ◽  
Vol 662 (2) ◽  
pp. 379-383 ◽  
Author(s):  
Yu Sugawara ◽  
Amar Prasad Yadav ◽  
Atsushi Nishikata ◽  
Tooru Tsuru
Keyword(s):  
Surface Area ◽  
Platinum Nanoparticles ◽  
Potential Cycling ◽  
Area Loss

Effect of electrochemical surface area on electroless copper deposition: Pd nanocubes as new activators

2012 ◽  
Vol 59 ◽  
pp. 587-591 ◽  
Author(s):  
Chien-Liang Lee ◽  
Chia-Chieh Syu ◽  
Hsueh-Ping Chiou ◽  
Chia-Ru Liu ◽  
Chun-Han Huang
Keyword(s):  
Surface Area ◽  
Copper Deposition ◽  
Electrochemical Surface Area ◽  
Electroless Copper

scholarly journals Elucidating the degradation mechanism of the cathode catalyst of PEFCs by a combination of electrochemical methods and X-ray fluorescence spectroscopy

2016 ◽  
Vol 18 (32) ◽  
pp. 22407-22415 ◽  
Author(s):  
J. Monzó ◽  
D. F. van der Vliet ◽  
A. Yanson ◽  
P. Rodriguez
Keyword(s):  
Fluorescence Spectroscopy ◽  
Surface Area ◽  
Degradation Mechanism ◽  
Electrochemical Methods ◽  
Cathode Catalyst ◽  
Degradation Mechanisms ◽  
Electrochemical Surface Area ◽  
X Ray

In this study, we report a methodology which enables the determination of the degradation mechanisms responsible for catalyst deterioration under different accelerated stress protocols (ASPs) by combining measurements of the electrochemical surface area (ECSA) and Pt content (by X-ray fluorescence).

scholarly journals Surface area loss mechanisms of Pt3Co nanocatalysts in proton exchange membrane fuel cells

2017 ◽  
Vol 343 ◽  
pp. 571-579 ◽  
Author(s):  
S. Rasouli ◽  
R.A. Ortiz Godoy ◽  
Z. Yang ◽  
M. Gummalla ◽  
S.C. Ball ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Surface Area ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Area Loss ◽  
Exchange Membrane ◽  
Loss Mechanisms
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