Synthesis of erbium hydroxide microflowers and nanostructures in subcritical water

被引：10

作者：

Assaaoudi, H. ^{[1
]}

Fang, Z. ^{[2
]}

Butler, I. S. ^{[1
]}

Kozinski, J. A. ^{[3
]}

机构：

[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada

[2] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Biomass Grp, Kunming 650223, Yunnan Province, Peoples R China

[3] Univ Saskatchewan, Dept Chem Engn, Coll Engn, Saskatoon, SK S7N 5A9, Canada

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 18期

关键词：

D O I：

10.1088/0957-4484/19/18/185606

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of temperature, pressure, pH, residence time and reactant concentrations, as well as the presence or absence of CO(2), on the size and morphology of erbium hydroxide particles synthesized in a hydrothermal batch reactor and a diamond-anvil cell (DAC) reactor have been investigated. Several new erbium-based microstructures and nanostructures were obtained that encompass different phases and shapes, including crystalline microflowers, hexagonal microlayers, microsticks and microspheres made from nanoparticles, as well as nanofibers, nanorods and nanolayers. The Er(2)OCO(3)(OH)(2) microflowers are pure, structurally uniform, and mostly free from dislocations. Their crystallinity, morphology, optical properties and structural features have been examined and compared with those of the other phases by field-emission scanning electron microscopy (SEM), x-ray diffraction (XRD), and energy-dispersive x-ray (EDX) analysis, and by Raman, infrared, UV-visible and fluorescence spectroscopy.

引用

页数：8

共 28 条

[1] Hydrothermal synthesis, crystal structure, and vibrational and Mossbauer spectra of a new tricationic orthophosphate -: KCo3Fe(PO4)3 [J].

Assaaoudi, H ;

Fang, Z ;

Ryan, DH ;

Butler, IS ;

Kozinski, JA .

CANADIAN JOURNAL OF CHEMISTRY, 2006, 84 (02) :124-133

[2]

Assaaoudi H, 2005, J CHEM CRYSTALLOGR, V35, P809, DOI 10.1007/sl0870-005-4551-z

[3] Crystal structure, vibrational spectra and thermal decomposition of a new tetrazinc(II) dipyrophosphate decahydrate, Zn4(P2O7)2•10H2O [J].

Assaaoudi, H ;

Butler, IS ;

Kozinski, J ;

Bélanger-Gariépy, F .

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 2005, 35 (01) :49-59

[4] Synthesis, characterization and properties of erbium-based nanofibres and nanorods [J].

Assaaoudi, H. ;

Fang, Z. ;

Barralet, J. E. ;

Wright, A. J. ;

Butler, I. S. ;

Kozinski, J. A. .

NANOTECHNOLOGY, 2007, 18 (44)

[5] A NEW DIAMOND-ANVIL CELL FOR HYDROTHERMAL STUDIES TO 2.5 GPA AND FROM - 190-DEGREES-C TO 1200-DEGREES-C [J].

BASSETT, WA ;

SHEN, AH ;

BUCKNUM, M ;

CHOU, IM .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1993, 64 (08) :2340-2345

[6] DYNAMICS AND SPECTROSCOPY OF INFRARED-TO-VISIBLE UP-CONVERSION IN ERBIUM-DOPED CESIUM CADMIUM BROMIDE (CSCDBR3-ER3+) [J].

COCKROFT, NJ ;

JONES, GD ;

NGUYEN, DC .

PHYSICAL REVIEW B, 1992, 45 (10) :5187-5198

[7] Functional nanoscale electronic devices assembled using silicon nanowire building blocks [J].

Cui, Y ;

Lieber, CM .

SCIENCE, 2001, 291 (5505) :851-853

[8] Direct ultrasensitive electrical detection of DNA and DNA sequence variations using nanowire nanosensors [J].

Hahm, J ;

Lieber, CM .

NANO LETTERS, 2004, 4 (01) :51-54

[9] Logic gates and computation from assembled nanowire building blocks [J].

Huang, Y ;

Duan, XF ;

Cui, Y ;

Lauhon, LJ ;

Kim, KH ;

Lieber, CM .

SCIENCE, 2001, 294 (5545) :1313-1317

[10] Gallium nitride nanowire nanodevices [J].

Huang, Y ;

Duan, XF ;

Cui, Y ;

Lieber, CM .

NANO LETTERS, 2002, 2 (02) :101-104

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