Properties of the amorphous-nanocrystalline Gd2O3 powder prepared by pulsed electron beam evaporation

被引：23

作者：

Il'ves, V. G. ^{[1
]}

Sokovnin, S. Yu. ^{[1
,2
]}

Uporov, S. A. ^{[3
]}

Zuev, M. G. ^{[2
,4
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Electrophys, Ekaterinburg 620216, Russia

[2] Ural Fed Univ, Ekaterinburg 620002, Russia

[3] Russian Acad Sci, Ural Branch, Inst Met, Ekaterinburg 620016, Russia

[4] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia

来源：

PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

GADOLINIUM OXIDE NANOPARTICLES; MULTIMODAL CONTRAST; IN-VIVO; NANOPOWDERS; TRANSITION; CELLS; ZNO; MAGNETISM; AGENTS;

D O I：

10.1134/S1063783413060127

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An amorphous-nanocrystalline Gd2O3 powder with a specific surface area of 155 m(2)/g has been prepared using pulsed electron beam evaporation in vacuum. The nanopowder consists of 20- to 500-nm agglomerates formed by crystalline nanoparticles (3-12 nm in diameter) connected by amorphous-nanocrystalline strands. At room temperature, the Gd2O3 nanopowder exhibits a paramagnetic behavior. The phase transformations occurring in the powder have been investigated using differential scanning calorimetry and thermogravimetry (40-1400A degrees C). The amorphous phase of the nanopowder is thermally stable up to a temperature of 1080A degrees C. It has been found that the amorphous phase has an inhibitory effect on the temperature of the polymorphic transformation from the cubic phase into the monoclinic phase. It has been revealed that, compared with the microcrystalline powder, the Gd2O3 nanopowder is characterized by a complete quenching of photoluminescence.

引用

页码：1262 / 1271

页数：10

共 58 条

[1] A simple polyol-free synthesis route to Gd2O3 nanoparticles for MRI applications: an experimental and theoretical study [J].

Ahren, Maria ;

Selegard, Linnea ;

Soderlind, Fredrik ;

Linares, Mathieu ;

Kauczor, Joanna ;

Norman, Patrick ;

Kall, Per-Olov ;

Uvdal, Kajsa .

JOURNAL OF NANOPARTICLE RESEARCH, 2012, 14 (08)

[2]

[Anonymous], 1986, LANDOLTBORNSTEIN NUM

[3]

[Бардаханов Сергей Прокопьевич Bardakhanov S.P.], 2008, [Физическая мезомеханика, Physical Mesomechanics, Fizicheskaya mezomekhanika], V11, P111

[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] Synthesis and luminescent properties of sub-5-nm lanthanide oxides nanoparticles [J].

Bazzi, R ;

Flores-Gonzalez, MA ;

Louis, C ;

Lebbou, K ;

Dujardin, C ;

Brenier, A ;

Zhang, W ;

Tillement, O ;

Bernstein, E ;

Perriat, P .

JOURNAL OF LUMINESCENCE, 2003, 102 :445-450

[6] Hybrid gadolinium oxide nanoparticles:: Multimodal contrast agents for in vivo imaging [J].

Bridot, Jean-Luc ;

Faure, Anne-Charlotte ;

Laurent, Sophie ;

Riviere, Charlotte ;

Billotey, Claire ;

Hiba, Bassem ;

Janier, Marc ;

Josserand, Veronique ;

Coll, Jean-Luc ;

Vander Elst, Luce ;

Muller, Robert ;

Roux, Stephane ;

Perriat, Pascal ;

Tillement, Olivier .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (16) :5076-5084

[7] Hybrid gadolinium oxide nanoparticles combining imaging and therapy [J].

Bridot, Jean-Luc ;

Dayde, David ;

Riviere, Charlotte ;

Mandon, Celine ;

Billotey, Claire ;

Lerondel, Stephanie ;

Sabattier, Roland ;

Cartron, Guillaume ;

Le Pape, Alain ;

Blondiaux, Gilbert ;

Janier, Marc ;

Perriat, Pascal ;

Roux, Stephane ;

Tillement, Olivier .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (16) :2328-2335

[8] Gadolinium-based contrast agents and nephrotoxicity in patients undergoing coronary artery procedures [J].

Briguori, C ;

Colombo, A ;

Airoldi, F ;

Melzi, G ;

Michev, I ;

Carlino, M ;

Montorfano, M ;

Chieffo, A ;

Bellanca, R ;

Ricciardelli, B .

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, 2006, 67 (02) :175-180

[9] Effect of the nanostructure on room temperature ferromagnetism and resistivity of undoped ZnO thin films grown by chemical vapor deposition [J].

Burova, Lidia I. ;

Perov, Nikolai S. ;

Semisalova, Anna S. ;

Kulbachinskii, Vladimir A. ;

Kytin, Vladimir G. ;

Roddatis, Vladimir V. ;

Vasiliev, Alexander L. ;

Kaul, Andrey R. .

THIN SOLID FILMS, 2012, 520 (14) :4580-4585

[10] Strategies for increasing the sensitivity of gadolinium based MRI contrast agents [J].

Caravan, Peter .

CHEMICAL SOCIETY REVIEWS, 2006, 35 (06) :512-523

← 1 2 3 4 5 6 →