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Title: Fabrication of core−shell structure of M@C (M=Se, Au, Ag2Se) and transformation to yolk−shell structure by electron beam irradiation or vacuum annealing
Authors: Zhu, Jixin
Sun, Ting
Hng, Huey Hoon
Ma, Jan
Boey, Freddy Yin Chiang
Lou, David Xiong Wen
Zhang, Hua
Xue, Can
Chen, Hongyu
Yan, Qingyu
Keywords: DRNTU::Engineering::Materials::Metallic materials
Issue Date: 2009
Source: Zhu, J., Sun, T., Hng, H. H., Ma, J., Boey, F. Y. C., Lou, D. X. W., et al. (2009). Fabrication of Core−Shell Structure of M@C (M=Se, Au, Ag2Se) and Transformation to Yolk−Shell Structure by Electron Beam Irradiation or Vacuum Annealing. Chemistry of Materials, 21(16), 3848-3852.
Series/Report no.: Chemistry of materials
Abstract: Selenium @ carbon core−shell spheres have been synthesized via a simple one-step hydrothermal carbonization process using sucrose and sodium selenite as precursors. Metal selenide or noble metal, e.g. Ag2Se or Au, can be easily encapsulated into the carbon shell by using the as-prepared Se@C core−shell samples as site templates. The transformation from core/shell to yolk/shell structure, e.g. Se@C, Au/Se@C and Ag2Se@C, can be achieved through thermal evaporation under electron beam irradiation or vacuum annealing to evaporate Se. The optical absorption of the samples can be tuned by varying the structure/compositions of the samples.
DOI: 10.1021/cm9013943
Schools: School of Chemical and Biomedical Engineering 
Rights: © 2009 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles
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