A room temperature process for making Mn2O3 nano-particles and γ-MnOOH nano-rods

被引：22

作者：

Chandra, Navin ^{[1
]}

Bhasin, Sanjeev ^{[1
]}

Shanna, Meenakshi ^{[1
]}

Pal, Deepti ^{[1
]}

机构：

[1] CSIR, Reg Res Lab, Bhopal 462026, MP, India

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 17期

关键词：

nano-materials; Mn2O3; nano-particles; MnOOH nano-rods; room temperature synthesis; X-ray diffraction; microstructure; REDUCTION;

D O I：

10.1016/j.matlet.2006.12.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nano-size crystals of Mn2O3 and MnOOH have been prepared by a simple precipitation process using dilute aqueous solutions of manganese sulphate and ammonia in the presence of sodium lauryl sulphate - a surface active agent. X-ray diffraction spectrometry has been used to identify the phases and to calculate the size of the nano-size crystals using the Scherrer method. The morphology of the crystals has been studied by TEM/ HRTEM and Edax has been used to estimate their elemental constituents. The sonication of the prepared nano-size material in acetone leads to the conversion of MnOOH to nano-sized Mn2O3. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3728 / 3732

页数：5

共 17 条

[1] [Anonymous], 1980, MIN POWD DIFFR FIL S
[2] Metal ion coordination at the water-manganite (γ-MnOOH) interface I.: An EXAFS study of cadmium(II)
Bochatay, L
Persson, P
Sjöberg, S
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2000, 229 (02) : 584 - 592
[3] Different aspects of the microstructure of nanometer-sized Mn2O3
Chen, ZW
Zhang, SY
Tan, S
Wang, J
Jin, SZ
[J]. MATERIALS RESEARCH BULLETIN, 1999, 34 (10-11) : 1583 - 1587
[4] COUNCIL SCI IND RES, 2005, Patent No. 13702005
[5] A simple direct preparation of nanocrystalline γ-Mn2O3 at ambient temperature
Gui, Z
Fan, R
Chen, XH
Wu, YC
[J]. INORGANIC CHEMISTRY COMMUNICATIONS, 2001, 4 (06) : 294 - 296
[6] Low temperature preparation of nanocrystalline Mn2O3 via ethanol-thermal reduction of MnO2
He, WL
Zhang, YC
Zhang, XX
Wang, H
Yan, H
[J]. JOURNAL OF CRYSTAL GROWTH, 2003, 252 (1-3) : 285 - 288
[7] HEGEDUS L, 2008, Patent No. 345695
[8] Anomalous magnetic properties of MnO nanoclusters
Lee, GH
Huh, SH
Jeong, JW
Choi, BJ
Kim, SH
Ri, HC
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (41) : 12094 - 12095
[9] Li YD, 1997, CHEM J CHINESE U, V18, P1921
[10] Redoxable nanosheet crystallites of MnO2 derived via delamination of a layered manganese oxide
Omomo, Y
Sasaki, T
Wang, LZ
Watanabe, M
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (12) : 3568 - 3575

← 1 2 →