Extreme size dependence of the oxidation behavior of molybdenum clusters

Eun Ji Park; Martin Link; Dominik Hierling; Andreas Dollinger; Byeong Jun Cha; Gerd Gantefoer; Young Dok Kim

doi:10.1063/1.5050719

Extreme size dependence of the oxidation behavior of molybdenum clusters

Eun Ji Park, Martin Link, Dominik Hierling, Andreas Dollinger, Byeong Jun Cha, Gerd Gantefoer, Young Dok Kim

Dept. of Fine Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The oxidation of size-selected deposited Molybdenum clusters is investigated with X-ray photoelectron spectroscopy and scanning tunneling microscopy (STM). Small clusters with less than 200 atoms are highly reactive and rapidly oxidize even in high vacuum. In contrast, larger clusters with more than 500 atoms do not completely oxidize even when exposed to an oxygen atmosphere. This can be explained by a thin oxide layer, which protects the clusters from further oxidation. The morphology of the cluster films is examined by STM. Oxidation should result in a volume increase and a change in the structure of the cluster thin films. Unexpectedly, the STM images look similar for oxidized and non-oxidized clusters.

Original language	English
Title of host publication	Advanced Materials
Subtitle of host publication	Proceedings of the International Workshop on Advanced Materials, IWAM 2017
Editors	Sukanta K. Tripathy, Shyamalendu M. Bose, Mihir Hota
Publisher	American Institute of Physics Inc.
ISBN (Print)	9780735417212
DOIs	https://doi.org/10.1063/1.5050719
State	Published - 16 Aug 2018
Event	International Workshop on Advanced Materials, IWAM 2017 - Berhampur, Odisha, India Duration: 19 Dec 2017 → 21 Dec 2017

Publication series

Name	AIP Conference Proceedings
Volume	2005
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Workshop on Advanced Materials, IWAM 2017
Country/Territory	India
City	Berhampur, Odisha
Period	19/12/17 → 21/12/17

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10.1063/1.5050719

Cite this

Park, E. J., Link, M., Hierling, D., Dollinger, A., Cha, B. J., Gantefoer, G., & Kim, Y. D. (2018). Extreme size dependence of the oxidation behavior of molybdenum clusters. In S. K. Tripathy, S. M. Bose, & M. Hota (Eds.), Advanced Materials: Proceedings of the International Workshop on Advanced Materials, IWAM 2017 Article 020002 (AIP Conference Proceedings; Vol. 2005). American Institute of Physics Inc.. https://doi.org/10.1063/1.5050719

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abstract = "The oxidation of size-selected deposited Molybdenum clusters is investigated with X-ray photoelectron spectroscopy and scanning tunneling microscopy (STM). Small clusters with less than 200 atoms are highly reactive and rapidly oxidize even in high vacuum. In contrast, larger clusters with more than 500 atoms do not completely oxidize even when exposed to an oxygen atmosphere. This can be explained by a thin oxide layer, which protects the clusters from further oxidation. The morphology of the cluster films is examined by STM. Oxidation should result in a volume increase and a change in the structure of the cluster thin films. Unexpectedly, the STM images look similar for oxidized and non-oxidized clusters.",

author = "Park, \{Eun Ji\} and Martin Link and Dominik Hierling and Andreas Dollinger and Cha, \{Byeong Jun\} and Gerd Gantefoer and Kim, \{Young Dok\}",

note = "Publisher Copyright: {\textcopyright} 2018 Author(s).; International Workshop on Advanced Materials, IWAM 2017 ; Conference date: 19-12-2017 Through 21-12-2017",

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doi = "10.1063/1.5050719",

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Park, EJ, Link, M, Hierling, D, Dollinger, A, Cha, BJ, Gantefoer, G & Kim, YD 2018, Extreme size dependence of the oxidation behavior of molybdenum clusters. in SK Tripathy, SM Bose & M Hota (eds), Advanced Materials: Proceedings of the International Workshop on Advanced Materials, IWAM 2017., 020002, AIP Conference Proceedings, vol. 2005, American Institute of Physics Inc., International Workshop on Advanced Materials, IWAM 2017, Berhampur, Odisha, India, 19/12/17. https://doi.org/10.1063/1.5050719

Extreme size dependence of the oxidation behavior of molybdenum clusters. / Park, Eun Ji; Link, Martin; Hierling, Dominik et al.
Advanced Materials: Proceedings of the International Workshop on Advanced Materials, IWAM 2017. ed. / Sukanta K. Tripathy; Shyamalendu M. Bose; Mihir Hota. American Institute of Physics Inc., 2018. 020002 (AIP Conference Proceedings; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Extreme size dependence of the oxidation behavior of molybdenum clusters

AU - Park, Eun Ji

AU - Link, Martin

AU - Hierling, Dominik

AU - Dollinger, Andreas

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AU - Gantefoer, Gerd

AU - Kim, Young Dok

PY - 2018/8/16

Y1 - 2018/8/16

N2 - The oxidation of size-selected deposited Molybdenum clusters is investigated with X-ray photoelectron spectroscopy and scanning tunneling microscopy (STM). Small clusters with less than 200 atoms are highly reactive and rapidly oxidize even in high vacuum. In contrast, larger clusters with more than 500 atoms do not completely oxidize even when exposed to an oxygen atmosphere. This can be explained by a thin oxide layer, which protects the clusters from further oxidation. The morphology of the cluster films is examined by STM. Oxidation should result in a volume increase and a change in the structure of the cluster thin films. Unexpectedly, the STM images look similar for oxidized and non-oxidized clusters.

AB - The oxidation of size-selected deposited Molybdenum clusters is investigated with X-ray photoelectron spectroscopy and scanning tunneling microscopy (STM). Small clusters with less than 200 atoms are highly reactive and rapidly oxidize even in high vacuum. In contrast, larger clusters with more than 500 atoms do not completely oxidize even when exposed to an oxygen atmosphere. This can be explained by a thin oxide layer, which protects the clusters from further oxidation. The morphology of the cluster films is examined by STM. Oxidation should result in a volume increase and a change in the structure of the cluster thin films. Unexpectedly, the STM images look similar for oxidized and non-oxidized clusters.

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T3 - AIP Conference Proceedings

BT - Advanced Materials

A2 - Tripathy, Sukanta K.

A2 - Bose, Shyamalendu M.

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Park EJ, Link M, Hierling D, Dollinger A, Cha BJ, Gantefoer G et al. Extreme size dependence of the oxidation behavior of molybdenum clusters. In Tripathy SK, Bose SM, Hota M, editors, Advanced Materials: Proceedings of the International Workshop on Advanced Materials, IWAM 2017. American Institute of Physics Inc. 2018. 020002. (AIP Conference Proceedings). doi: 10.1063/1.5050719

Extreme size dependence of the oxidation behavior of molybdenum clusters

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