Degradation of metal clusters and nanoparticles under electrochemical control
Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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Degradation of metal clusters and nanoparticles under electrochemical control. / Arenz, M.; Quinson, J.
Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry. Elsevier, 2018. s. 434-441.Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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TY - CHAP
T1 - Degradation of metal clusters and nanoparticles under electrochemical control
AU - Arenz, M.
AU - Quinson, J.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The degradation of metal clusters and nanoparticles under electrochemical control is a major challenge to overcome in many applications, for example, to develop efficient, stable, and cheap energy devices. In particular, Pt nanoparticles are catalysts in polymer electrolyte fuel cells with relevance to the automotive industry. Understanding the degradation mechanisms of metal clusters and nanoparticles is important to develop effective mitigation strategies and optimize, for instance, the lifetime of electrocatalytic devices. The main degradation mechanisms in such devices are presented: migration coalescence, metal dissolution, electrochemical Ostwald ripening, and particle detachment. Understanding the dynamic and often complex degradation pathway has been possible through the development of investigation techniques, which are highlighted as well.
AB - The degradation of metal clusters and nanoparticles under electrochemical control is a major challenge to overcome in many applications, for example, to develop efficient, stable, and cheap energy devices. In particular, Pt nanoparticles are catalysts in polymer electrolyte fuel cells with relevance to the automotive industry. Understanding the degradation mechanisms of metal clusters and nanoparticles is important to develop effective mitigation strategies and optimize, for instance, the lifetime of electrocatalytic devices. The main degradation mechanisms in such devices are presented: migration coalescence, metal dissolution, electrochemical Ostwald ripening, and particle detachment. Understanding the dynamic and often complex degradation pathway has been possible through the development of investigation techniques, which are highlighted as well.
KW - Clusters
KW - Corrosion
KW - Degradation
KW - Dissolution
KW - Efficiency loss
KW - Electrocatalysis
KW - Electrochemistry
KW - Energy
KW - Fuel cells
KW - Il-microscopy
KW - Nanoparticles
KW - Platinum
KW - Precious metals
KW - Ripening
KW - Stability
U2 - 10.1016/B978-0-12-409547-2.12939-7
DO - 10.1016/B978-0-12-409547-2.12939-7
M3 - Book chapter
AN - SCOPUS:85079261984
SN - 9780128097397
SP - 434
EP - 441
BT - Encyclopedia of Interfacial Chemistry
PB - Elsevier
ER -
ID: 244085628