Preparation and characterization of MnOOH and β-MnO2 whiskers

被引：60

作者：

Sun, XD ^{[1
]}

Ma, CL ^{[1
]}

Wang, YD ^{[1
]}

Li, HD ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2002年 / 5卷 / 10期

基金：

中国国家自然科学基金;

关键词：

manganese oxides; whisker; surfactant; chemical synthesis;

D O I：

10.1016/S1387-7003(02)00544-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

MnOOH and beta-MnO2 whiskers are obtained for the first time in our work. MnOOH whiskers are chemically synthesized in the presence of cationic surfactant cetyltrimethylammonium bromide (CTAB). The product is obtained under extremely low surfactant concentrations under basic conditions, using MnSO4 . H2O as the manganese source and ethylamine as the alkali source. After the subsequent heat treatment of MnOOH at 300 degreesC for I h, beta-MnO2 whiskers retaining the similar morphologies are obtained. Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and thermogravimetry analysis (TGA) are used to characterize the products. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：747 / 750

页数：4

共 22 条

[1] Surface properties of sol-gel synthesized δ-MnO2 as assessed by N2 sorptometry, electron microscopy, and X-ray photoelectron spectroscopy [J].

AL-Sagheer, FA ;

Zaki, MI .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2000, 173 (1-3) :193-204

[2] SOL-GEL SYNTHESIS OF MANGANESE OXIDES [J].

BACH, S ;

HENRY, M ;

BAFFIER, N ;

LIVAGE, J .

JOURNAL OF SOLID STATE CHEMISTRY, 1990, 88 (02) :325-333

[3] BIRNESSITE MANGANESE-DIOXIDE SYNTHESIZED VIA A SOL-GEL PROCESS - A NEW RECHARGEABLE CATHODIC MATERIAL FOR LITHIUM BATTERIES [J].

BACH, S ;

PEREIRARAMOS, JP ;

BAFFIER, N ;

MESSINA, R .

ELECTROCHIMICA ACTA, 1991, 36 (10) :1595-1603

[4] SYNTHESIS AND CHARACTERIZATION OF LAMELLAR MNO2 OBTAINED FROM THERMAL-DECOMPOSITION OF NAMNO4 FOR RECHARGEABLE LITHIUM CELLS [J].

BACH, S ;

PEREIRARAMOS, JP ;

BAFFIER, N .

JOURNAL OF SOLID STATE CHEMISTRY, 1995, 120 (01) :70-73

[5] A review of porous manganese oxide materials [J].

Brock, SL ;

Duan, NG ;

Tian, ZR ;

Giraldo, O ;

Zhou, H ;

Suib, SL .

CHEMISTRY OF MATERIALS, 1998, 10 (10) :2619-2628

[6] A new synthetic route to todorokite-type manganese oxides [J].

Ching, S ;

Krukowska, KS ;

Suib, SL .

INORGANICA CHIMICA ACTA, 1999, 294 (02) :123-132

[7]

DETORRESI SIC, 1992, ELECTROCHIM ACTA, V37, P2015

[8] GROWTH OF SILICA POLYMERS IN A LAMELLAR MESOPHASE [J].

DUBOIS, M ;

GULIKKRZYWICKI, T ;

CABANE, B .

LANGMUIR, 1993, 9 (03) :673-680

[9] OXIDATION OF MANGANESE OXIDE HYDROXIDE [J].

GIOVANOLI, R ;

LEUENBERGER, U .

HELVETICA CHIMICA ACTA, 1969, 52 (08) :2333-+

[10] PREPARATION OF A NEW CRYSTAL FORM OF MANGANESE-DIOXIDE - LAMBDA-MNO2 [J].

HUNTER, JC .

JOURNAL OF SOLID STATE CHEMISTRY, 1981, 39 (02) :142-147

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