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Shin C, Bae H, Kang M, et al. Direct Observation of the Collision of Single Pt Nanoparticles onto Single-Crystalline Gold Nanowire Electrodes. Chem Asian J. 2016;11(15):2181-7doi: 10.1002/asia.201600630.
Shin, C., Bae, H., Kang, M., Kim, B., & Kwon, S. J. (2016). Direct Observation of the Collision of Single Pt Nanoparticles onto Single-Crystalline Gold Nanowire Electrodes. Chemistry, an Asian journal, 11(15), 2181-7. https://doi.org/10.1002/asia.201600630
Shin, Changhwan, et al. "Direct Observation of the Collision of Single Pt Nanoparticles onto Single-Crystalline Gold Nanowire Electrodes." Chemistry, an Asian journal vol. 11,15 (2016): 2181-7. doi: https://doi.org/10.1002/asia.201600630
Shin C, Bae H, Kang M, Kim B, Kwon SJ. Direct Observation of the Collision of Single Pt Nanoparticles onto Single-Crystalline Gold Nanowire Electrodes. Chem Asian J. 2016 Aug 05;11(15):2181-7. doi: 10.1002/asia.201600630. Epub 2016 Jul 21. PMID: 27305586.
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Chem Asian J. 2016 Aug 05;11(15):2181-7. doi: 10.1002/asia.201600630. Epub 2016 Jul 21.

Direct Observation of the Collision of Single Pt Nanoparticles onto Single-Crystalline Gold Nanowire Electrodes.

Chemistry, an Asian journal

Changhwan Shin, Hyeonhu Bae, Mijeong Kang, Bongsoo Kim, Seong Jung Kwon

Affiliations

  1. Department of Chemistry, University of Konkuk, 120?Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea.
  2. Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.
  3. Department of Chemistry, University of Konkuk, 120?Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea. [email protected].

PMID: 27305586 DOI: 10.1002/asia.201600630

Abstract

We observed the collision of single Pt nanoparticles (NPs) onto an Au nanowire (NW) electrode by using electrocatalytic amplification. Previously, such observations had typically been performed by using a microscale disk-type ultramicroelectrode (UME). The use of a NW electrode decreased the background noise current and provided a shielding effect, owing to adsorption of the NPs onto the insulating sheath. Therefore, the transient current signal that was caused by the collision of single NPs could be more clearly distinguished from the background current by using a NW electrode instead of a UME. Furthermore, the use of a NW electrode increased the collisional frequency and the magnitude of the transient current signal. The experimental data were analyzed by using a theoretical model and a random walk simulation model.

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: gold; nanoparticles; nanowires; oxidation; platinum

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