Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid
Cobalt nanoparticles were produced by employing the liquid-phase reduction method and hydrazine. The effect of citric acid additives on the formation and growth mechanism of cobalt nanoparticles was investigated using polarization methods. The cobalt nanoparticles produced in 0.2 M cobalt sulfate an...
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Format: | Article |
Language: | English |
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Wiley
2014-01-01
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Series: | Journal of Nanotechnology |
Online Access: | http://dx.doi.org/10.1155/2014/525193 |
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author | S. A. Salman T. Usami K. Kuroda M. Okido |
author_facet | S. A. Salman T. Usami K. Kuroda M. Okido |
author_sort | S. A. Salman |
collection | DOAJ |
description | Cobalt nanoparticles were produced by employing the liquid-phase reduction method and hydrazine. The effect of citric acid additives on the formation and growth mechanism of cobalt nanoparticles was investigated using polarization methods. The cobalt nanoparticles produced in 0.2 M cobalt sulfate and 5 M hydrazine at 298 K had a spherical shape with a diameter of 400 nm. The dendritic nanoparticles formed with the decreasing of hydrazine concentration at 298 K. On the other hand, dendritic large particles are confirmed at 353 K. It was confirmed that the reduction reaction progressed with the addition of citric acid, and a hexagonal close-packed (εCo) phase was formed. |
format | Article |
id | doaj-art-b064409b8eff4faab1aab9054d0f7826 |
institution | Kabale University |
issn | 1687-9503 1687-9511 |
language | English |
publishDate | 2014-01-01 |
publisher | Wiley |
record_format | Article |
series | Journal of Nanotechnology |
spelling | doaj-art-b064409b8eff4faab1aab9054d0f78262025-02-03T06:12:02ZengWileyJournal of Nanotechnology1687-95031687-95112014-01-01201410.1155/2014/525193525193Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric AcidS. A. Salman0T. Usami1K. Kuroda2M. Okido3EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, JapanGraduate School of Engineering Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, JapanEcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, JapanEcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, JapanCobalt nanoparticles were produced by employing the liquid-phase reduction method and hydrazine. The effect of citric acid additives on the formation and growth mechanism of cobalt nanoparticles was investigated using polarization methods. The cobalt nanoparticles produced in 0.2 M cobalt sulfate and 5 M hydrazine at 298 K had a spherical shape with a diameter of 400 nm. The dendritic nanoparticles formed with the decreasing of hydrazine concentration at 298 K. On the other hand, dendritic large particles are confirmed at 353 K. It was confirmed that the reduction reaction progressed with the addition of citric acid, and a hexagonal close-packed (εCo) phase was formed.http://dx.doi.org/10.1155/2014/525193 |
spellingShingle | S. A. Salman T. Usami K. Kuroda M. Okido Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid Journal of Nanotechnology |
title | Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid |
title_full | Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid |
title_fullStr | Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid |
title_full_unstemmed | Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid |
title_short | Synthesis and Characterization of Cobalt Nanoparticles Using Hydrazine and Citric Acid |
title_sort | synthesis and characterization of cobalt nanoparticles using hydrazine and citric acid |
url | http://dx.doi.org/10.1155/2014/525193 |
work_keys_str_mv | AT sasalman synthesisandcharacterizationofcobaltnanoparticlesusinghydrazineandcitricacid AT tusami synthesisandcharacterizationofcobaltnanoparticlesusinghydrazineandcitricacid AT kkuroda synthesisandcharacterizationofcobaltnanoparticlesusinghydrazineandcitricacid AT mokido synthesisandcharacterizationofcobaltnanoparticlesusinghydrazineandcitricacid |