Synthesis, Characterization, and Physicochemical Properties of Well-Coupled Y2O3 Nanobelt-Ag Nanocrystals Nanocomposites

被引:14
作者
Han, Min [1 ]
Li, Xun [1 ]
Li, Baojun [1 ]
Shi, Naien [1 ]
Chen, Kunji [2 ]
Zhu, Jianming [2 ]
Xu, Zheng [1 ]
机构
[1] Nanjing Univ, State Key Lab Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
[2] Nanjing Univ, State Key Lab Solid State Microstruct, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1021/jp806119w
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, Y2O3 nanobelt-Ag nanocrystals multifunctional nanocomposites have been prepared by thermal decomposition of solid metal nitrate salts in dodecylamine and 1-octadecene mixed solvents from room temperature to 320 degrees C. For each synthesis, gram-scale nanocomposites can be easily produced. Microstructure characterization results demonstrate that Ag nanocrystals are well-dispersed and partially embedded in Y2O3 nanobelts to form well-coupled nanocomposites. Significant enhancement of dielectric performance and modification of optical absorption as well as the excellent catalytic hydrogenation performance are observed in the synthesized nanocomposites compared with those of bare Y2O3 nanobelts or pure Ag nanocrystals.
引用
收藏
页码:17893 / 17898
页数:6
相关论文
共 46 条
[1]   Low interface states and high dielectric constant Y2O3 films on Si substrates [J].
Alarcon-Flores, G. ;
Aguilar-Frutis, M. ;
Falcony, C. ;
Garcia-Hipolito, M. ;
Araiza-Ibarra, J. J. ;
Herrera-Suarez, H. J. .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2006, 24 (04) :1873-1877
[2]   Nanoparticles as recyclable catalysts: The frontier between homogeneous and heterogeneous catalysis [J].
Astruc, D ;
Lu, F ;
Aranzaes, JR .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (48) :7852-7872
[3]   Optical absorption of composites of nanocrystalline silver prepared by electrodeposition [J].
Banerjee, S ;
Chakravorty, D .
APPLIED PHYSICS LETTERS, 1998, 72 (09) :1027-1029
[4]   Synthesis and properties of europium-based phosphors on the manometer scale:: Eu2O3, Gd2O3:Eu, and Y2O3:Eu [J].
Bazzi, R ;
Flores, MA ;
Louis, C ;
Lebbou, K ;
Zhang, W ;
Dujardin, C ;
Roux, S ;
Mercier, B ;
Ledoux, G ;
Bernstein, E ;
Perriat, P ;
Tillement, O .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 273 (01) :191-197
[5]   New developments in hydrogenation catalysis particularly in synthesis of fine and intermediate chemicals [J].
Chen, B ;
Dingerdissen, U ;
Krauter, JGE ;
Rotgerink, HGJL ;
Möbus, K ;
Ostgard, DJ ;
Panster, P ;
Riermeier, TH ;
Seebald, S ;
Tacke, T ;
Trauthwein, H .
APPLIED CATALYSIS A-GENERAL, 2005, 280 (01) :17-46
[6]   Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions [J].
Chen, JY ;
Wiley, B ;
McLellan, J ;
Xiong, YJ ;
Li, ZY ;
Xia, YN .
NANO LETTERS, 2005, 5 (10) :2058-2062
[7]   Ag/SiO2:: A novel catalyst with high activity and selectivity for hydrogenation of chloronitrobenzenes [J].
Chen, YY ;
Wang, CA ;
Liu, HY ;
Qiu, JS ;
Bao, XH .
CHEMICAL COMMUNICATIONS, 2005, (42) :5298-5300
[8]   Some interesting properties of metals confined in time and nanometer space of different shapes [J].
El-Sayed, MA .
ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (04) :257-264
[9]   Hydrothermal synthesis of rare earth (Tb, Y) hydroxide and oxide nanotubes [J].
Fang, YP ;
Xu, AW ;
You, LP ;
Song, RQ ;
Yu, JC ;
Zhang, HX ;
Li, Q ;
Liu, HQ .
ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (12) :955-960
[10]  
Feldheim DL, 2002, METAL NANOPARTICLES: SYNTHESIS, CHARACTERIZATION, AND APPLICATIONS, P1