TY - JOUR
T1 - 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
AU - Zhu, Jixin
AU - Sun, Ting
AU - Hng, Huey Hoon
AU - Ma, Jan
AU - Boey, Freddy Yin Chiang
AU - Lou, Xiongwen
AU - Zhang, Hua
AU - Xue, Can
AU - Chen, Hongyu
AU - Yan, Qingyu
PY - 2009/8/25
Y1 - 2009/8/25
N2 - 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.
AB - 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.
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U2 - 10.1021/cm9013943
DO - 10.1021/cm9013943
M3 - Article
AN - SCOPUS:69249163811
SN - 0897-4756
VL - 21
SP - 3848
EP - 3852
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 16
ER -