Nanoseashells and Nanooctahedra of MoS2: Routes to Inorganic Fullerenes

被引:27
作者
Enyashin, Andrey N. [1 ,2 ]
Bar-Sadan, Maya [3 ,4 ]
Sloan, Jeremy [5 ]
Houben, Lothar [3 ,4 ]
Seifert, Gotthard [1 ]
机构
[1] Tech Univ Dresden, D-01062 Dresden, Germany
[2] RAS, Inst Solid State Chem UB, Ekaterinburg 620990, Russia
[3] KFA Julich GmbH, Forschungszentrum, Inst Solid State Res, D-52425 Julich, Germany
[4] KFA Julich GmbH, Forschungszentrum, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany
[5] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
基金
欧洲研究理事会;
关键词
TRANSMISSION ELECTRON-MICROSCOPY; MOLYBDENUM SULFIDE FULLERENES; DENSITY-FUNCTIONAL THEORY; WAVE-ABERRATION FUNCTION; HIGH-RESOLUTION TEM; TIGHT-BINDING; WS2; NANOPARTICLES; SINGLE-LAYER; NANOTUBES; NANOSTRUCTURES;
D O I
10.1021/cm9021326
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
Nanooctahedra of MoS2 are considered to be the true inorganic fullerenes, exhibiting different properties from the bulk and also other closed-cage morphologies of the same material. These structures are produced in high energy systems where the synthesis is performed far from equilibrium conditions, and the reaction mechanism involved remains unknown. Here, the discovery of two imperfect structures of nanooctahedra-the distorted octahedra and seashell structures with meander-like cross sections-is reported and studied in detail using transmission electron microscopy and quantum-mechanical methods. These nanoparticles can serve to understand the synthesis route by establishing the basic principles of their morphology and stability. The fundamental properties of the inorganic lattice are the basis for matching the projections observed in microscopy images with a suggested atomistic model, Quantum-mechanical calculations are used to estimate their stability and electronic properties. It was concluded that the production of nanooctahedra involves a high temperature stage, where lattice defects enable the formation of a closed structure Without a templating particle. Thereafter at lower temperatures, the mixture of products is carried forward and the annealing contributes to the enrichment of the product with more symmetric structures.
引用
收藏
页码:5627 / 5636
页数:10
相关论文
共 47 条
[1]   Atom by atom: HRTEM insights into inorganic nanotubes and fullerene-like structures [J].
Bar Sadan, Maya ;
Houben, Lothar ;
Enyashin, Andrey N. ;
Seifert, Gotthard ;
Tenne, Reshef .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2008, 105 (41) :15643-15648
[2]   Toward atomic-scale bright-field electron tomography for the study of fullerene-like nanostructures [J].
Bar Sadan, Maya ;
Houben, Lothar ;
Wolf, Sharon G. ;
Enyashin, Andrey ;
Seifert, Gotthard ;
Tenne, Reshef ;
Urban, Knut .
NANO LETTERS, 2008, 8 (03) :891-896
[3]   Structure and stability of molybdenum sulfide fullerenes [J].
Bar-Sadan, M. ;
Enyashin, A. N. ;
Gemming, S. ;
Popovitz-Biro, R. ;
Hong, S. Y. ;
Prior, Yehiam ;
Tenne, R. ;
Seifert, G. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (50) :25399-25410
[4]   The structure of trititanate nanotubes [J].
Chen, Q ;
Du, GH ;
Zhang, S ;
Peng, LM .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 2002, 58 :587-593
[5]   PHASE RETRIEVAL THROUGH FOCUS VARIATION FOR ULTRA-RESOLUTION IN FIELD-EMISSION TRANSMISSION ELECTRON-MICROSCOPY [J].
COENE, W ;
JANSSEN, G ;
DEBEECK, MO ;
VANDYCK, D .
PHYSICAL REVIEW LETTERS, 1992, 69 (26) :3743-3746
[6]   Structure, stability and electronic properties of TiO2 nanostructures [J].
Enyashin, AN ;
Seifert, G .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2005, 242 (07) :1361-1370
[7]   Structure and stability of molybdenum sulfide fullerenes [J].
Enyashin, Andrey N. ;
Gemming, Sibylle ;
Bar-Sadan, Maya ;
Popovitz-Biro, Ronit ;
Hong, Sung You ;
Prior, Yehiam ;
Tenne, Reshef ;
Seifert, Gotthard .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (04) :623-627
[8]   HIGH-RATE, GAS-PHASE GROWTH OF MOS2 NESTED INORGANIC FULLERENES AND NANOTUBES [J].
FELDMAN, Y ;
WASSERMAN, E ;
SROLOVITZ, DJ ;
TENNE, R .
SCIENCE, 1995, 267 (5195) :222-225
[9]   Bulk synthesis of inorganic fullerene-like MS(2) (M=Mo, W) from the respective trioxides and the reaction mechanism [J].
Feldman, Y ;
Frey, GL ;
Homyonfer, M ;
Lyakhovitskaya, V ;
Margulis, L ;
Cohen, H ;
Hodes, G ;
Hutchison, JL ;
Tenne, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (23) :5362-5367
[10]   Octahedral boron nitride fullerenes formed by electron beam irradiation [J].
Golberg, D ;
Bando, Y ;
Stephan, O ;
Kurashima, K .
APPLIED PHYSICS LETTERS, 1998, 73 (17) :2441-2443