Hydrothermal zinc oxide nanowire growth using zinc acetate dihydrate salt

Date

2012-06-01

Author

AKGUN, Mehmet Can
Kalay, Yunus Eren
Ünalan, Hüsnü Emrah

Metadata

Show full item record

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

Item Usage Stats

155
views

0
downloads

Hydrothermal approach is widely used for the synthesis of zinc oxide (ZnO) nanowires. Zinc nitrate hexahydrate, zinc acetate and zinc chloride are three common salts that are used for synthesis. Among these, zinc nitrate hexahydrate is primarily used in many studies and zinc chloride is preferred for electrodeposition. In this work, zinc acetate dihydrate salt is used for the growth of ZnO nanowires and the effects of time, temperature, solution concentration and concentration ratios of the precursor chemicals are investigated. It is found that the growth time and solution concentration control the lengths of the nanowires, whereas the precursor concentration ratio and solution concentration control their diameter. High solution concentrations and high zinc acetate dihydrate concentrations lead to the development of thin film morphology. Optimum growth parameters are obtained and suggested for the use of zinc acetate dihydrate as a zinc source for growing ZnO nanowires with high aspect ratio (AR). The use of zinc acetate dihydrate leads to the formation of ZnO nanowires without impurities and eliminates the need for using extra capping agents.

Subject Keywords

Films, Mocvd, Catalyst, Deposition, Substrate, Arrays, Low-temperature, Patterned growth, Aligned zno nanorods

URI

https://hdl.handle.net/11511/41303

Journal

JOURNAL OF MATERIALS RESEARCH

DOI

https://doi.org/10.1557/jmr.2012.92

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Hydrothermal zinc oxide nanowire growth with different zinc salts Akgun, Mehmet Can; Afal, Aysegul; Ünalan, Hüsnü Emrah (2012-09-01) The effect of the use of different zinc salts as zinc sources during hydrothermal growth of zinc oxide nanowires was systematically investigated. Change in the temperature, pH, and transmittance of the growth solutions prepared with three different zinc salts was monitored and used to provide a broad explanation to the effect of the salt. In addition to conventional heating process, microwave heating of the growth solutions was also performed, and differences in the ZnO nanowires synthesized through both he...
Hydrothermally grown zinc oxide nanowires and their utilization in light emitting diodes and photodetectors Ateş, Elif Selen; Ünalan, Hüsnü Emrah; Department of Metallurgical and Materials Engineering (2012) Zinc oxide, with its direct wide bandgap and high exciton binding energy, is a promising material for optoelectronic devices. Quantum confinement effect and high surface to volume ratio of the nanowires imparts unique properties to them and makes them appealing for researchers. So far, zinc oxide nanowires have been used to fabricate various optoelectronic devices such as light emitting diodes, solar cells, sensors and photodetectors. To fabricate those optoelectronic devices, many different synthesis metho...
NaCl-Promoted CuO-RuO2/SiO2 Catalysts for Propylene Epoxidation with O-2 at Atmospheric Pressures: A Combinatorial Micro-reactor Study Kalyoncu, Sule; Duzenli, Derya; Önal, Işık; Seubsai, Anusorn; Noon, Daniel; Senkan, Selim; Say, Zafer; Vovk, Evgeny I.; ÖZENSOY, EMRAH (2015-02-01) A combinatorial approach is used to investigate several alkali metals promoted Cu-Ru binary oxide catalysts with improved catalytic performance in the propylene partial oxidation. 2 %Cu/5 %Ru/c-SiO2 catalyst had the best yield with high propylene conversion and propylene oxide (PO) selectivity. Among the promoters screening in the study, NaCl promotion significantly increased the PO selectivity accompanied by some attenuation in the total propylene conversion. It was proposed that binary oxide catalysts rev...
Hydroxyapatite-nanosphere supported ruthenium(0) nanoparticle catalyst for hydrogen generation from ammonia-borane solution: kinetic studies for nanoparticle formation and hydrogen evolution DURAK, HALİL; Gülcan, Mehmet; Zahmakıran, Mehmet; Özkar, Saim; KAYA, MURAT (Royal Society of Chemistry (RSC), 2014-01-01) The development of readily prepared effective heterogeneous catalysts for hydrogen generation from ammonia-borane (AB; NH3BH3) solution under mild conditions still remains a challenge in the field of "hydrogen economy". In this study, we report our finding of an in situ generated, highly active ruthenium nanocatalyst for the dehydrogenation of ammonia-borane in water at room temperature. The new catalyst system consists of ruthenium(0) nanoparticles supported on nanohydroxyapatite (RuNPs@nano-HAp), and can ...
Direct epoxidation of propylene to propylene oxide on various catalytic systems: A combinatorial micro-reactor study Kalyoncu, Sule; Duzenli, Derya; Önal, Işık; Seubsai, Anusorn; Noon, Daniel; Senkan, Selim (2015-02-10) A combinatorial approach is used to investigate several bimetallic catalytic systems and the promoter effect on these catalysts to develop highly active and selective catalysts for direct epoxidation of propylene to propylene oxide (PO) using molecular oxygen. 2%Cu/5%Ru/c-SiO2 catalyst yielded the highest performance with high propylene conversion and PO selectivity among the bimetallic catalytic systems including silver, ruthenium, manganese and copper metals. On the other hand, the most effective catalyst...

Citation Formats

M. C. AKGUN, Y. E. Kalay, and H. E. Ünalan, “Hydrothermal zinc oxide nanowire growth using zinc acetate dihydrate salt,” JOURNAL OF MATERIALS RESEARCH, pp. 1445–1451, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41303.