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Title: Interface and heterostructure design in polyelemental nanoparticles

Abstract

Nanomaterials that form as heterostructures have applications in catalysis, plasmonics, and electronics. Multielement nanoparticles can now be synthesized through a variety of routes, but how thermodynamic phases form in such structures and how specific interfaces between them can be designed and synthesized are still poorly understood. We explored how palladium-tin alloys form mixed-composition phases with metals with known but complex miscibilities. Nanoparticles with up to seven elements were synthesized, and many form triphase heterostructures consisting of either three-interface or two-interface architectures. Density functional theory calculations and experimental work were used to determine the balance between the surface and interfacial energies of the observed phases. From these observations, design rules have been established for making polyelemental systems with specific heterostructures, including tetraphase nanoparticles with as many as six junctions.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [4]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Northwestern Univ., Evanston, IL (United States). International Inst. for Nanotechnology
  2. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering
  3. Northwestern Univ., Evanston, IL (United States). International Inst. for Nanotechnology; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
  4. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Northwestern Univ., Evanston, IL (United States). International Inst. for Nanotechnology; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory-National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1530851
Resource Type:
Journal Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 363; Journal Issue: 6430; Journal ID: ISSN 0036-8075
Country of Publication:
United States
Language:
English

Citation Formats

Chen, Peng-Cheng, Liu, Mohan, Du, Jingshan S., Meckes, Brian, Wang, Shunzhi, Lin, Haixin, Dravid, Vinayak P., Wolverton, Chris, and Mirkin, Chad A. Interface and heterostructure design in polyelemental nanoparticles. United States: N. p., 2019. Web. doi:10.1126/science.aav4302.
Chen, Peng-Cheng, Liu, Mohan, Du, Jingshan S., Meckes, Brian, Wang, Shunzhi, Lin, Haixin, Dravid, Vinayak P., Wolverton, Chris, & Mirkin, Chad A. Interface and heterostructure design in polyelemental nanoparticles. United States. doi:10.1126/science.aav4302.
Chen, Peng-Cheng, Liu, Mohan, Du, Jingshan S., Meckes, Brian, Wang, Shunzhi, Lin, Haixin, Dravid, Vinayak P., Wolverton, Chris, and Mirkin, Chad A. Thu . "Interface and heterostructure design in polyelemental nanoparticles". United States. doi:10.1126/science.aav4302.
@article{osti_1530851,
title = {Interface and heterostructure design in polyelemental nanoparticles},
author = {Chen, Peng-Cheng and Liu, Mohan and Du, Jingshan S. and Meckes, Brian and Wang, Shunzhi and Lin, Haixin and Dravid, Vinayak P. and Wolverton, Chris and Mirkin, Chad A.},
abstractNote = {Nanomaterials that form as heterostructures have applications in catalysis, plasmonics, and electronics. Multielement nanoparticles can now be synthesized through a variety of routes, but how thermodynamic phases form in such structures and how specific interfaces between them can be designed and synthesized are still poorly understood. We explored how palladium-tin alloys form mixed-composition phases with metals with known but complex miscibilities. Nanoparticles with up to seven elements were synthesized, and many form triphase heterostructures consisting of either three-interface or two-interface architectures. Density functional theory calculations and experimental work were used to determine the balance between the surface and interfacial energies of the observed phases. From these observations, design rules have been established for making polyelemental systems with specific heterostructures, including tetraphase nanoparticles with as many as six junctions.},
doi = {10.1126/science.aav4302},
journal = {Science},
issn = {0036-8075},
number = 6430,
volume = 363,
place = {United States},
year = {2019},
month = {2}
}