GERMANIUM NANOCLUSTERS - CHEMICAL-VAPOR-DEPOSITION OF DIGERMANE IN ZEOLITE-Y AND MORDENITE

Date

1994-02-01

Author

DAG, O
KUPERMAN, A
OZIN, GA

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

194
views

0
downloads

Uniform arrays of intrazeolite germanium nanoclusters have been produced by the topotactic chemical vapor deposition of digermane within the diamond network of alpha-cages of acid zeolite Y and the main channel of mordenite. The conditions within the zeolite hosts ensure that the Ge2H2 CVD-type anchored precursors self-assemble to produce the anchored (Ge8)n+ nanoclusters shown in the Figure.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials

URI

https://hdl.handle.net/11511/66844

Journal

ADVANCED MATERIALS

DOI

https://doi.org/10.1002/adma.19940060211

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Sintering and humidity-sensitive behaviour of the ZnCr2O4-K2CrO4 ceramic system Bayhan, M; Hashemi, T; Brinkman, AW (Springer Science and Business Media LLC, 1997-12-15) Solid state reaction at elevated temperatures and the sintering behaviour of zinc chromite formed by zinc oxide and chromite oxide were investigated. Crystalline structure, surface and fractured morphologies and humidity-sensitivity characteristics of ZnCr2O4-K2CrO4-CuO were studied. The fired ceramic body, which proved to be mainly constructed from ZnCr2O4 spinel grains, was porous. The humidity characteristics of the sensor showed that the resistance decreased as a logarithmic function with an increase in...
Thermally stimulated currents in n-InS single crystals Hasanlı, Nızamı; Yuksek, NS (Elsevier BV, 2003-03-24) Thermally stimulated current measurements are carried out on as-grown n-InS single crystals in the temperature range of 10-125 K. Experimental evidence is found for four trapping centers present in InS. They are located at 20, 35, 60 and 130 meV. The trap parameters have been determined by various methods of analysis, and they agree well with each other.
Investigation of microstructure-ultrasonic velocity relationship in SiCp-reinforced aluminium metal matrix composites Gür, Cemil Hakan (Elsevier BV, 2003-11-25) Twenty-one sets of specimens were fabricated by hot pressing powder mixtures containing various volume and size combinations of pure Al and SiC particles. Neither heat treatment nor secondary deformation processes were applied. The microstructures of the specimens were characterised by optical and scanning electron microscopy. Using a 10 MHz probe, the velocity of ultrasonic longitudinal waves was measured. The results show that in general the ultrasonic velocity increases with an increase in SiC content. H...
COARSENING OF DELTA' (AL3LI) AND COMPOSITE PRECIPITATES IN AN AL-2.5-PERCENT LI-0.15-PERCENT ZR ALLOY Aydınol, Mehmet Kadri (Springer Science and Business Media LLC, 1994-01-01) The early stage coarsening behaviour of delta' (Al3Li) precipitates and composite precipitates, consisting of beta' (Al3Zr) core enveloped by a delta' shell, in an Al-2.5% Li-0.1 5% Zr alloy has been studied at 443, 473 and 503 K by conventional transmission electron microscopy using superlattice dark-field images. Coarsening kinetics of delta' precipitates was found to exhibit considerable deviation from the t1/3 law corresponding to diffusion control at 473 and 503 K. This deviation may be explained eithe...
Plastic deformation induced microstructure evolution through gradient enhanced crystal plasticity based on a non-convex Helmholtz energy Klusemann, Benjamin; Yalçınkaya, Tuncay (Elsevier BV, 2013-09-01) A gradient crystal plasticity model in the framework of continuum thermodynamics and rate variational formulation is presented for the description of plastic deformation patterning in a system with non-convex energetic hardening. The paper focuses on the extension of the 1D deformation patterning analysis of Yalcinkaya et al. (2011) to 2D for monotonic loading histories. Solution algorithm is based on the simultaneous solution of displacement and plastic slip fields, which have been considered as primary va...

Citation Formats

O. DAG, A. KUPERMAN, and G. OZIN, “GERMANIUM NANOCLUSTERS - CHEMICAL-VAPOR-DEPOSITION OF DIGERMANE IN ZEOLITE-Y AND MORDENITE,” ADVANCED MATERIALS, pp. 147–150, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66844.