| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 |
15권 2호, p.2233 |
| 발표분야 |
재료 |
| 제목 |
Studies on Galvanic Replacement Method:Substitution of Silver Nanorods with Gold |
| 초록 |
In this study, the galvanic replacement reaction was investigated. As anexample of replacement reaction, silver nanorods were replaced with gold forming gold nanotubes. Due to the standard reduction potential difference between silver and gold ions, the solid silver was replaced with gold voluntarily at room temperature. Tubular gold nanostructures were obtained after reaction of silver nanorods suspension reacted with precursor of Gold(Ⅲ) chloride trihydrate. In addition to the microscopic observation, kinetics study on the replacement reaction was also carried out. The progress of replacement reactionwas monitored at different reaction conditions with time. From the kinetics data, the reaction rate constant was determined. This studyinvestigated on the kinetics on the galvanic replacement reaction for the first time as far as we know. It would provide fundamental information on the reaction rates. The outcome of this study would contribute to the development of process useful to synthesize novel funtional materials. |
| 저자 |
권순일, 이인호, 김형태, 안성준, 고원건, 이상엽
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| 소속 |
연세대 |
| 키워드 |
galvanic replacement reaction; silver nanorod; gold nanotube
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| E-Mail |
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| 원문파일 |
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