Solvothermal and surfactant-free synthesis of crystalline Nb2O5, Ta2O5, HfO2, and Co-doped HfO2 nanoparticles

被引：60

作者：

Buha, Jelena ^{[1
]}

Arcon, Denis ^{[2
,3
]}

Niederberger, Markus ^{[4
]}

Djerdj, Igor ^{[5
,6
]}

机构：

[1] Univ Belgrade, IHTM Inst Microelect Technol & Single Crystals, Belgrade 11000, Serbia

[2] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

[3] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[4] Swiss Fed Inst Technol, Dept Mat, CH-8093 Zurich, Switzerland

[5] Rudjer Boskovic Inst, Zagreb 10000, Croatia

[6] Natl Inst Chem, Ljubljana, Slovenia

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2010年 / 12卷 / 47期

关键词：

LOW-TEMPERATURE SYNTHESIS; METAL-OXIDE NANOPARTICLES; VERSATILE REACTION SYSTEM; SOL-GEL ROUTES; NONAQUEOUS SYNTHESIS; STRUCTURAL-CHARACTERIZATION; ELECTROCHROMIC COATINGS; BENZYL ALCOHOL; NIOBIUM OXIDE; NANOCRYSTALS;

D O I：

10.1039/c0cp01298j

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：

A simple route to niobium, hafnium and tantalum oxide nanocrystals using a nonaqueous sol-gel route based on the solvothermal reaction of the corresponding metal chlorides with benzyl alcohol is presented. This approach can easily be extended to the preparation of high quality Co-doped HfO2 nanoparticles of uniform size and shape and with a homogenous distribution of the magnetic ions. The structural characterization of all these nanomaterials as well as the magnetic properties of pure and doped hafnia, with special attention to the doping efficiency, are discussed. The obtained Co-doped hafnia exhibits paramagnetic properties with very weak antiferromagnetic interactions between Co ions moments.

引用

页码：15537 / 15543

页数：7

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