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  Galvanic Replacement Reactions in Metal Oxide Nanocrystals

Oh, M. H., Yu, T., Yu, S.-H., Lim, B., Ko, K.-T., Willinger, M. G., et al. (2013). Galvanic Replacement Reactions in Metal Oxide Nanocrystals. Science, 340(6135), 964-968. doi:10.1126/science.1234751.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-AF87-C Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-7A18-4
Genre: Journal Article

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 Creators:
Oh, Myoung Hwan1, 2, Author
Yu, Taekyung3, Author
Yu, Seung-Ho1, 2, Author
Lim, Byungkwon4, Author
Ko, Kyung-Tae5, Author
Willinger, Marc Georg6, Author           
Seo, Dong-Hwa7, Author
Kim, Byung Hyo1, 2, Author
Cho, Min Gee1, 2, Author
Park, Jae-Hoon5, 8, Author
Kang, Kisuk7, Author
Sung, Yung-Eun1, 2, Author
Pinna, Nicola2, 9, 10, Author
Hyeon, Taeghwan1, 2, Author
Affiliations:
1Center for Nanoparticle Research, Institute for Basic Science (IBS), and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea, ou_persistent22              
2World Class University (WCU) Program of Chemical Convergence for Energy and Environment and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea, ou_persistent22              
3Department of Chemical Engineering, College of Engineering, Kyung Hee University, Yongin 446-701, Korea, ou_persistent22              
4School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea, ou_persistent22              
5Cross-Coupled Complex Materials Research and Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Korea, ou_persistent22              
6Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
7Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 151-742, Korea, ou_persistent22              
8Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang 790-784, Korea, ou_persistent22              
9Department of Chemistry and Centre for Research in Ceramics & Composite Materials, University of Aveiro, Aveiro 3810-193, Portugal, ou_persistent22              
10Institut für Chemie, Humboldt-Universität zu Berlin, Berlin 12489, Germany, ou_persistent22              

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 Abstract: Galvanic replacement reactions provide a simple and versatile route for producing hollow nanostructures with controllable pore structures and compositions. However, these reactions have previously been limited to the chemical transformation of metallic nanostructures. We demonstrated galvanic replacement reactions in metal oxide nanocrystals as well. When manganese oxide (Mn3O4) nanocrystals were reacted with iron(II) perchlorate, hollow box-shaped nanocrystals of Mn3O4/γ-Fe2O3 (“nanoboxes”) were produced. These nanoboxes ultimately transformed into hollow cagelike nanocrystals of γ-Fe2O3 (“nanocages”). Because of their nonequilibrium compositions and hollow structures, these nanoboxes and nanocages exhibited good performance as anode materials for lithium ion batteries. The generality of this approach was demonstrated with other metal pairs, including Co3O4/SnO2 and Mn3O4/SnO2.

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Language(s): eng - English
 Dates: 2013-01-032013-04-152013-05-242013-05-24
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1126/science.1234751
 Degree: -

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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 340 (6135) Sequence Number: - Start / End Page: 964 - 968 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1