Mechanosynthesis of nanocrystalline fayalite, Fe2SiO4

被引：32

作者：

Sepelak, Vladimir S. ^{[1
,2
]}

Myndyk, Maxym ^{[3
]}

Fabian, Martin ^{[4
]}

Da Silva, Klebson L. ^{[5
]}

Feldhoff, Armin ^{[2
,6
]}

Menzel, Dirk ^{[7
]}

Ghafari, Mohammad ^{[1
]}

Hahn, Horst ^{[1
]}

Heitjans, Paul ^{[2
,6
]}

Becker, Klaus D. ^{[2
,8
]}

机构：

[1] KIT, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

[2] Leibniz Univ Hannover, Ctr Solid State Chem & New Mat, D-30167 Hannover, Germany

[3] Tech Univ Dresden, Dept Inorgan Chem, D-01062 Dresden, Germany

[4] Slovak Acad Sci, Inst Geotech, SK-04353 Kosice, Slovakia

[5] Univ Estadual Maringa, Dept Phys, BR-87020900 Maringa, Parana, Brazil

[6] Leibniz Univ Hannover, Inst Phys Chem & Electrochem, D-30167 Hannover, Germany

[7] Braunschweig Univ Technol, Inst Condensed Matter Phys, D-38106 Braunschweig, Germany

[8] Braunschweig Univ Technol, Inst Phys & Theoret Chem, D-38106 Braunschweig, Germany

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 90期

关键词：

STEP MECHANOCHEMICAL ROUTE; OLIVINE-SPINEL TRANSITION; ENHANCED MAGNETIZATION; NANOPARTICLES;

D O I：

10.1039/c2cc36370d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanostructured fayalite (alpha-Fe2SiO4) with a large volume fraction of interfaces is synthesized for the first time via single-step mechanosynthesis, starting from a 2 alpha-Fe2O3 + 2Fe + 3SiO(2) mixture. The nonequilibrium state of the as-prepared silicate is characterized by the presence of deformed polyhedra in the interface/surface regions of nanoparticles.

引用

页码：11121 / 11123

页数：3

共 13 条

[1] Mechanosynthesized BiFeO3 Nanoparticles with Highly Reactive Surface and Enhanced Magnetization [J].

Da Silva, Klebson L. ;

Menzel, Dirk ;

Feldhoff, Armin ;

Kuebel, Christian ;

Bruns, Michael ;

Paesano, Andrea, Jr. ;

Duevel, Andre ;

Wilkening, Martin ;

Ghafari, Mohammad ;

Hahn, Horst ;

Litterst, Fred J. ;

Heitjans, Paul ;

Becker, Klaus D. ;

Sepelak, Vladimir .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (15) :7209-7217

[2] A low-temperature calorimetric study of synthetic (forsterite plus fayalite) {(Mg2SiO4+Fe2SiO4)} solid solutions:: An analysis of vibrational, magnetic, and electronic contributions to the molar heat capacity and entropy of mixing [J].

Dachs, Edgar ;

Geiger, Charles A. ;

von Seckendorff, Volker ;

Grodzicki, Michael .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2007, 39 (06) :906-933

[3] Sol-gel synthesis of nanocrystalline fayalite (Fe2SiO4) [J].

DeAngelis, Michael T. ;

Rondinone, Adam J. ;

Pawel, Michelle D. ;

Labotka, Theodore C. ;

Anovitz, Lawrence M. .

AMERICAN MINERALOGIST, 2012, 97 (04) :653-656

[4] The Gibbs energy formulation of α, γ, and liquid Fe2SiO4 using Grover, Getting, and Kennedy's empirical relation between volume and bulk modulus [J].

Jacobs, MHG ;

de Jong, BHWS ;

Oonk, HAJ .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2001, 65 (22) :4231-4242

[5] Influence of cation disorder on the magnetic properties of ball-milled ilmenite (FeTiO3) [J].

Morup, Steen ;

Rasmussen, Helge K. ;

Brok, Erik ;

Keller, Lukas ;

Frandsen, Cathrine .

MATERIALS CHEMISTRY AND PHYSICS, 2012, 136 (01) :184-189

[6] Electronic structure, dielectric properties and infrared vibrational spectrum of fayalite: An ab initio simulation with an all-electron Gaussian basis set and the B3LYP functional [J].

Noel, Y. ;

De La Pierre, M. ;

Maschio, L. ;

Rerat, M. ;

Zicovich-Wilson, C. M. ;

Dovesi, R. .

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 2012, 112 (09) :2098-2108

[7] THE CONSTITUTION OF THE MANTLE .1. THERMODYNAMICS OF THE OLIVINE-SPINEL TRANSITION [J].

RINGWOOD, AE .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1958, 13 (04) :303-321

[8]

RINGWOOD AE, 1958, GEOL SOC AM BULL, V69, P129, DOI 10.1130/0016-7606(1958)69[129:OTIF]2.0.CO

[9]

[10] Nonequilibrium cation distribution, canted spin arrangement, and enhanced magnetization in nanosized MgFe2O4 prepared by a one-step mechanochemical route [J].

Sepelák, Vladimir ;

Feldhoff, Armin ;

Heitjans, Paul ;

Krumeich, Frank ;

Menzel, Dirk ;

Litterst, Fred Jochen ;

Bergmann, Ingo ;

Becker, Klaus Dieter .

CHEMISTRY OF MATERIALS, 2006, 18 (13) :3057-3067

← 1 2 →