Electrochemical Characterization of Various Synthesized Quantum Dots and the Effect of Aging and Storage Way
Loading...
Date
2015-02-01
Authors
Hynek, David
Tmejová, Kateřina
Milosavljević, Vedran
Moulick, Amitava
Kopel, Pavel
Adam, Vojtěch
Kizek, René
0000-0002-7318-6470Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
ESG
Abstract
New type of quantum dots (QDs) are synthesized using various types of passivators, thus the question of their stability and way of storage is still opened not only due to characterization but also due to their wide application (chemistry, chemical biology and biomedicine, gene technology, tumour biology investigation, and fluorescent labelling). In our study, we are interested in the electrochemical changes as a result of aging and storage. We employed a series of aqueous solutions of QDs from various materials with different capping agents (PbS and CuS capped with 3-mercaptopropionic acid, CdS and CdTe capped with mercaptosuccinic acid) and the changes in typical peaks for metals and passivators (acids) were detected by difference pulse voltammetry, after 28 days storage in daylight (25oC) and dark (4oC). Anodic stripping difference pulse voltammetry offers simple and inexpensive approach for monitoring of nanoscaled products behaviour in time, based on evaluation of both - metal and passivator peak.
New type of quantum dots (QDs) are synthesized using various types of passivators, thus the question of their stability and way of storage is still opened not only due to characterization but also due to their wide application (chemistry, chemical biology and biomedicine, gene technology, tumour biology investigation, and fluorescent labelling). In our study, we are interested in the electrochemical changes as a result of aging and storage. We employed a series of aqueous solutions of QDs from various materials with different capping agents (PbS and CuS capped with 3-mercaptopropionic acid, CdS and CdTe capped with mercaptosuccinic acid) and the changes in typical peaks for metals and passivators (acids) were detected by difference pulse voltammetry, after 28 days storage in daylight (25oC) and dark (4oC). Anodic stripping difference pulse voltammetry offers simple and inexpensive approach for monitoring of nanoscaled products behaviour in time, based on evaluation of both - metal and passivator peak.
New type of quantum dots (QDs) are synthesized using various types of passivators, thus the question of their stability and way of storage is still opened not only due to characterization but also due to their wide application (chemistry, chemical biology and biomedicine, gene technology, tumour biology investigation, and fluorescent labelling). In our study, we are interested in the electrochemical changes as a result of aging and storage. We employed a series of aqueous solutions of QDs from various materials with different capping agents (PbS and CuS capped with 3-mercaptopropionic acid, CdS and CdTe capped with mercaptosuccinic acid) and the changes in typical peaks for metals and passivators (acids) were detected by difference pulse voltammetry, after 28 days storage in daylight (25oC) and dark (4oC). Anodic stripping difference pulse voltammetry offers simple and inexpensive approach for monitoring of nanoscaled products behaviour in time, based on evaluation of both - metal and passivator peak.
Description
Citation
International Journal of Electrochemical Science. 2015, vol. 10, issue 2, p. 1117-1127.
http://www.electrochemsci.org/papers/vol10/100201117.pdf
http://www.electrochemsci.org/papers/vol10/100201117.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en