Porphyrin controlled anisotropic and dendritic growth of thallium chloride crystals

被引：1

作者：

Bruzaite I. ^{[1
]}

Snitka V. ^{[2
]}

Mizariene V. ^{[2
]}

Limanauskas L. ^{[2
]}

Lendraitis V. ^{[3
]}

机构：

[1] Chemical Engineering Department, Vilnius Gediminas Technical University, Vilnius LT-10223

[2] Research Center for Microsystems and Nanotechnology, Kaunas University of Technology, Kaunas LT-51369

[3] Kaunas Technical College, Kaunas LT-50155

来源：

International Journal of Nanomanufacturing | 2010年 / 5卷 / 1-2期

关键词：

Dendrimers; Halides; Nanostructures; Oriented crystallisation; Thallium;

D O I：

10.1504/IJNM.2010.029937

中图分类号：

学科分类号：

摘要：

In this work, the morphology of TlCl crystals grown at the liquid-liquid interface between Tl2SO4 ant HCl solutions was investigated in the presence of various porphyrin molecules. The addition of the tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) molecules changed the TlCl morphology from spherical shape to single-crystalline strips with a diameter of 100-3,000 nm. The addition of meso-tetra(4-pyridyl)porphine (TPPyP) changed morphology of TlCl crystals into branching dendrites. The presence of the different porphyrins molecules in the crystallisation medium significantly influenced the morphology of the crystals. Crystals of TlCl with elongated rod-type or branching superstructures were nucleated with high aspect ratios depending on porphyrin type that was used. The composition and microstructure of dendrites was investigated by X-ray technique, SEM and atomic force microscopy (AFM). The wires were produced by elongation and stacking of planar TlCl crystals exhibiting (100) faces. The anisotropic growth behaviour causing the wire formation is tentatively ascribed to stepwise capping of the specific surfaces of TlCl crystals by porphyrin molecules. Copyright © 2010 Interscience Enterprises Ltd.

引用

页码：205 / 213

页数：8

共 21 条

[1]

Agekyan V.F., Stepanov Yu.A., Optical and structural properties of thallium halide microcrystals in a porous matrix, Physics of the Solid State, 43, 4, pp. 3769-3772, (2001)

[2]

Alivisatos A.P., Semiconductor clusters, nanocrystals and quantum dots, Science, 271, 5251, pp. 933-937, (1996)

[3]

Arnold M., Kortunov P., Jones D.J., Nedellec Y., Karger J., Caro J., Oriented crystallisation on supports and anisotropic mass transport of the metal-organic framework manganese formate, European Journal of Inorganic Chemistry, 1, pp. 60-64, (2007)

[4]

Chen D., Shen G.Z., Tang K.B., Liang Z.H., Zheng H.G., Sonochemical preparation of PbWO4 crystals with different morphologies, Journal Physical Chemistry B, 108, pp. 11280-11284, (2004)

[5]

Fuji A., Ono T., Yu W., Maki R., Optical absorption of confined excitions in Tl halide thin films, International Journal of Modern Physics B, 15, 28-30, pp. 3769-3772, (2001)

[6]

Li M., Schnablegger H., Mann S., Coupled synthesis and self-assembly of nanoparticles to give structures with controlled organization, Nature, 402, 6760, pp. 393-395, (1999)

[7]

Liu B., Yu S.H., Li L.J., Zhang Q., Zhang F., Jiang K., Morphology control of stolzite microcrystals with high hierarchy in solution, Angewandte Chemie, 43, 36, pp. 4745-4750, (2004)

[8]

Liu J.W., Shao M.W., Chen X.Y., Yu W.C., Liu X.M., Qian Y.T., Large-scale synthesis of carbon nanotubes by an ethanol thermal reduction process, Journal of the American Chemical Society, 125, 27, pp. 8088-8089, (2003)

[9]

Liu S., Yu J., Cheng B., Zhang Q., Controlled synthesis of novel flower-shaped BaCrO<sub>4</sub> crystals, Chemistry Letters, 34, 4, pp. 564-565, (2005)

[10]

Madden P.A., Wilson M., Covalent effects in ionic systems, Chemical Society Reviews, 25, pp. 339-350, (1996)

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