Fast, microwave-assisted synthesis of monodisperse HfO2 nanoparticles

被引:43
作者
De Roo, Jonathan [1 ,2 ]
De Keukeleere, Katrien [1 ]
Feys, Jonas [1 ]
Lommens, Petra [1 ]
Hens, Zeger [2 ,3 ]
Van Driessche, Isabel [1 ]
机构
[1] Univ Ghent, Sol Gel Ctr Res Inorgan Powders & Thin Films Synt, B-9000 Ghent, Belgium
[2] Univ Ghent, B-9000 Ghent, Belgium
[3] Univ Ghent, Ctr Nano & Biophoton NB Photon, B-9000 Ghent, Belgium
关键词
Benzyl alcohol; Microwave; Ligand exchange; Hafnium oxide; NONAQUEOUS SYNTHESIS; OXIDE; ZRO2; FILMS;
D O I
10.1007/s11051-013-1778-z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A conventional solvothermal synthesis was compared to a microwave-assisted method for the synthesis of HfO2 nanoparticles. In a microwave, the reaction could be completed in 3 h, compared to 3 days in an autoclave. In the microwave synthesis, the ensemble of particles was found to have a better size dispersion and a smaller average size (4 nm). The reaction mechanism was investigated and proof for an ether elimination process was provided. Post-synthetic modification with dopamine or dodecanoic acid permitted the suspension of the synthesized particles in both polar and apolar solvents, which is an advantage for further processing.
引用
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页数:11
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