Iron-57 Mossbauer spectroscopic investigation of manganese-doped γ-Fe2O3

被引：0
作者：
Berry, FJ
Helgason, Ö
Mosselmans, JWF
机构：
[1] Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England
[2] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland
[3] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England
来源：
HYPERFINE INTERACTIONS | 2004年 / 156卷 / 01期
关键词：
manganese-doped gamma-Fe2O3; Mossbauer spectroscopy;
D O I：
10.1023/B:HYPE.0000043245.49415.4f
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Manganese-doped gamma-Fe2O3 has been prepared by precipitation techniques and shown by Mn K-edge XANES and EXAFS to contain Mn3+ in the octahedral sites of the spinel-related structure. The Fe-57 Mossbauer spectra recorded in situ between 295 and 750 K show that conversion of the spinel-related gamma-Fe2O3 -to the corundum-related alpha-Fe2O3-structure occurs at ca. 700 and 730 K in the samples containing ca. 1.5 and 4.1% manganese, respectively. The presence of manganese therefore stabilises the gamma-Fe2O3-related structure relative to conversion to the alpha-Fe2O3 phase. The temperature dependence of the spectra recorded from the manganese-doped alpha-Fe2O3 is similar to that of pure alpha-Fe2O3 but with a smaller hyperfine magnetic field reflecting the presence of the manganese dopant.
引用
收藏
页码：305 / 309
页数：5
相关论文
共 50 条
[41]   Investigation of the reaction between Fe2O3 and Si activated by ball milling [J].
Concas, G ;
Congiu, F ;
Corrias, A ;
Muntoni, C ;
Paschina, G ;
Zedda, D .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1996, 51 (08) :915-922
[42]   Mossbauer investigation of 57Fe-doped Ni(III) perovskites ANi0.98Fe0.02O3 (A = Pr, Nd, Sm, Y, Lu, Tl) versus temperature [J].
Kim, SJ ;
Presniakov, I ;
Demazeau, G ;
Pokholok, K ;
Baranov, A ;
Sobolev, A ;
Pankratov, D ;
Ovanesyan, N .
JOURNAL OF SOLID STATE CHEMISTRY, 2002, 168 (01) :126-133
[43]   Synthesis and Mossbauer study of anomalous magnetic behavior of Fe2O3 nanoparticle-montmorillonite nanocomposites [J].
Gabbasov, Raul ;
Yurenya, Anton ;
Cherepanov, Valery ;
Polikarpov, Michael ;
Chuev, Michael ;
Nikitin, Alexey ;
Abakumov, Maxim ;
Panchenko, Vladislav .
HYPERFINE INTERACTIONS, 2019, 241 (01)
[44]   Mechanism and reaction kinetics in the solid phase transformation α-FeOOH→α-Fe2O3 studied by Mossbauer spectroscopy [J].
Diamandescu, L ;
Mihaila-Tarabasanu, D ;
Calogero, S ;
Popescu-Pogrion, N ;
Feder, M .
SOLID STATE IONICS, 1997, 101 :591-596
[45]   57Fe Mossbauer Spectroscopic Study on Fe2+-Oxides with Infinite-Layer and Ladder Structures [J].
Hayashi, Naoaki ;
Kageyama, Hiroshi ;
Tsujimoto, Yoshihiro ;
Watanabe, Takashi ;
Muranaka, Shigetoshi ;
Ono, Teruo ;
Nasu, Saburo ;
Ajiro, Yoshitami ;
Yoshimura, Kazuyoshi ;
Takano, Mikio .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2010, 79 (12)
[46]   Superparamagnetic properties of γ-Fe2O3 particles:: Mossbauer spectroscopy and d.c. magnetic measurements [J].
Zaveta, K. ;
Lancok, A. ;
Marysko, M. ;
Pollert, E. ;
Horak, D. .
CZECHOSLOVAK JOURNAL OF PHYSICS, 2006, 56 :E83-E91
[47]   γ-Fe2O3 Nanopowders Synthesized in Microwave Plasma and Extraordinarily Strong Temperature Influence on Their Mossbauer Spectra [J].
David, B. ;
Pizurova, N. ;
Schneeweiss, O. ;
Santava, E. ;
Kudrle, V. ;
Jasek, O. .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (12) :9277-9285
[48]   Fe3+ intercalation/deposition on vermiculites and interaction with pyrrole: a Mossbauer spectroscopic investigation [J].
Ramirez-Valle, V. ;
Lerf, A. ;
Wagner, F. E. ;
Poyato, J. ;
Perez-Rodriguez, J. L. .
CLAY MINERALS, 2008, 43 (03) :487-499
[49]   Neutron diffraction studies on "simple" iron oxides under pressure: Fe3O4, α-Fe2O3, and FeO [J].
Klotz, Stefan .
CHINESE SCIENCE BULLETIN, 2014, 59 (36) :5241-5250
[50]   Pressure response of vacancy ordered maghemite (γ-Fe2O3) and high pressure transformed hematite (α-Fe2O3) [J].
Hearne, Giovanni ;
Pischedda, Vittoria .
JOURNAL OF SOLID STATE CHEMISTRY, 2012, 187 :134-142
12345