Nucleation and growth of oriented layered hydroxides on polymer resin beads

被引：21

作者：

Du, Yi ^{[1
]}

Hu, Gang ^{[1
]}

O'Hare, Dermot ^{[1
]}

机构：

[1] Univ Oxford, Chem Res Lab, Dept Chem, Oxford OX1 3TA, England

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 08期

关键词：

COBALT HYDROXIDE; ION-EXCHANGE; ALPHA-COBALT; FILMS; PLATELETS; CRYSTALS;

D O I：

10.1039/b812424h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two types of layered metal hydroxides (layered Mg/Al double hydroxides and cobalt hydroxides) have been grown on the surface of cation-exchanged polymer resin beads. SEM images of the Mg/Al double hydroxide that nucleated on the surface of the Mg2+/Al3+-exchanged resin beads show it to have an initial LDH shell of ca. 150 nm and that this shell is constructed from a monolayer of LDH crystallites aligned edge-on. At longer reaction times LDH particles grow on top of this shell and lie flat on the surface. The overall thickness of the LDH coating is ca. 180 nm and it has been shown to have uniformly grown on the surface of the polymer bead. Layered alpha and beta-type cobalt hydroxide can also be grown on the surface of Co2+-exchange resin beads.

引用

页码：1160 / 1165

页数：6

共 21 条

[1]

Benson P., 1964, Electrochim. Acta, V9, P275

[2] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[3] In situ microstructure control of oriented layered double hydroxide monolayer films with curved hexagonal crystals as superhydrophobic materials [J].

Chen, Hongyun ;

Zhang, Fazhi ;

Fu, Shanshan ;

Duan, Xue .

ADVANCED MATERIALS, 2006, 18 (23) :3089-+

[4] Monolayer assembly of zeolite crystals on glass with fullerene as the covalent linker [J].

Choi, SY ;

Lee, YJ ;

Park, YS ;

Ha, K ;

Yoon, KB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (21) :5201-5209

[5] Synthesis and characterization of Co7(OH)12(C2H4S2O6)(H2O)2 -: a single crystal structural study of a ferrimagnetic layered cobalt hydroxide [J].

Forster, PM ;

Tafoya, MM ;

Cheetham, AK .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2004, 65 (01) :11-16

[6] From amorphous precipitates to sub-micronic crystalline platelets of Co(OH)2:: a kinetic study of the transformation process [J].

Gaunand, A ;

Lim, WL .

POWDER TECHNOLOGY, 2002, 128 (2-3) :332-337

[7] Macroscopically ordered hydrotalcite-type materials using self-assembled colloidal crystal template [J].

Géraud, E ;

Prévot, V ;

Ghanbaja, J ;

Leroux, F .

CHEMISTRY OF MATERIALS, 2006, 18 (02) :238-240

[8] Reversible guest exchange and ferrimagnetism (TC-60.5 K) in a porous cobalt(II)-hydroxide layer structure pillared with trans-1,4-cyclohexanedicarboxylate [J].

Kurmoo, M ;

Kumagai, H ;

Hughes, SM ;

Kepert, CJ .

INORGANIC CHEMISTRY, 2003, 42 (21) :6709-6722

[9] Solvothermal ion exchange of aliphatic dicarboxylates into the gallery space of layered double hydroxides immobilized on Si substrates [J].

Lee, JH ;

Rhee, SW ;

Jung, DY .

CHEMISTRY OF MATERIALS, 2004, 16 (19) :3774-3779

[10] Selective layer reaction of layer-by-layer assembled layered double-hydroxide nanocrystals [J].

Lee, Jong Hyeon ;

Rhee, Seog Woo ;

Jung, Duk-Young .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (12) :3522-+

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