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  Tracking the Mn Diffusion in the Carbon-Supported Nanoparticles Through the Collaborative Analysis of Atom Probe and Evaporation Simulation

Jung, C., Jun, H., Jang, K., Kim, S.-H., & Choi, P.-P. (2022). Tracking the Mn Diffusion in the Carbon-Supported Nanoparticles Through the Collaborative Analysis of Atom Probe and Evaporation Simulation. Microscopy and Microanalysis, 28(6), 1841-1850. doi:10.1017/S1431927622012211.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-4703-1 Version Permalink: https://hdl.handle.net/21.11116/0000-000C-4705-F
Genre: Journal Article

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 Creators:
Jung, Chanwon1, 2, Author           
Jun, Hosun3, Author           
Jang, Kyuseon1, Author
Kim, Se-Ho4, Author           
Choi, Pyuck-Pa5, Author           
Affiliations:
1Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea, ou_persistent22              
2Nanoanalytics and Interfaces, Independent Max Planck Research Groups, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2054294              
3Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea, ou_persistent22              
4Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863384              
5Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea, ou_persistent22              

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 Abstract: Carbon-supported nanoparticles have been used widely as efficient catalysts due to their enhanced surface-to-volume ratio. To investigate their structure-property relationships, acquiring 3D elemental distribution is required. Here, carbon-supported Pt, PtMn alloy, and ordered Pt3Mn nanoparticles are synthesized and analyzed with atom probe tomography as model systems. A significant difference of Mn distribution after the heat-treatment was found. Finally, the field evaporation behavior of the carbon support was discussed and each acquired reconstruction was compared with computational results from an evaporation simulation. This paper provides a guideline for studies using atom probe tomography on the heterogeneous carbon-supported nanoparticle system that leads to insights toward a wide variety of applications.

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Language(s): eng - English
 Dates: 2022-10-172022
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1017/S1431927622012211
 Degree: -

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Title: Microscopy and Microanalysis
  Abbreviation : Microsc. Microanal.
Source Genre: Journal
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Publ. Info: New York, NY : Cambridge University Press
Pages: - Volume / Issue: 28 (6) Sequence Number: - Start / End Page: 1841 - 1850 Identifier: ISSN: 1431-9276
CoNE: https://pure.mpg.de/cone/journals/resource/991042731793414