Observation of Electrocatalytic Amplification of Iridium Oxide (IrOx) Single Nanoparticle Collision on Copper Ultramicroelectrodes 


Vol. 35,  No. 8, pp. 2519-2522, Aug.  2014
10.5012/bkcs.2014.35.8.2519


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  Abstract

Recently, the observation of the electrocatalytic behavior of individual nanoparticles (NPs) by electrochemical amplification method has been reported. For example, the Iridium oxide (IrOx) NP collision on the Pt UME was observed via electrocatalytic water oxidation. However, the bare Pt UME had poor reproducibility for the observation of NP collision signal and required an inconvenient surface pre-treatment for the usage. In this manuscript, we has been investigated other metal electrode such as Cu UME for the reproducible data analysis and convenient use. The IrOx NP collision was successively observed on the bare Cu UME and the reproducibility in collision frequency was improved comparing with previous case using the NaBH4 pre-treated Pt UME. Also, the adhesion coefficient between NP and the Cu UME was studied for better understanding of the single NP collision system.

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  Cite this article

[IEEE Style]

Y. S. Choi, S. Y. Jung, J. W. Joo, S. J. Kwon, "Observation of Electrocatalytic Amplification of Iridium Oxide (IrOx) Single Nanoparticle Collision on Copper Ultramicroelectrodes," Bulletin of the Korean Chemical Society, vol. 35, no. 8, pp. 2519-2522, 2014. DOI: 10.5012/bkcs.2014.35.8.2519.

[ACM Style]

Yong Soo Choi, Seung Yeon Jung, Jin Woo Joo, and Seong Jung Kwon. 2014. Observation of Electrocatalytic Amplification of Iridium Oxide (IrOx) Single Nanoparticle Collision on Copper Ultramicroelectrodes. Bulletin of the Korean Chemical Society, 35, 8, (2014), 2519-2522. DOI: 10.5012/bkcs.2014.35.8.2519.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949