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ERIC Number: EJ1067466
Record Type: Journal
Publication Date: 2015-Jun
Pages: 5
Abstractor: As Provided
ISSN: ISSN-0021-9584
Synthesis of Hollow Gold-Silver Alloyed Nanoparticles: A "Galvanic Replacement" Experiment for Chemistry and Engineering Students
Jenkins, Samir V.; Gohman, Taylor D.; Miller, Emily K.; Chen, Jingyi
Journal of Chemical Education, v92 n6 p1056-1060 Jun 2015
The rapid academic and industrial development of nanotechnology has led to its implementation in laboratory teaching for undergraduate-level chemistry and engineering students. This laboratory experiment introduces the galvanic replacement reaction for synthesis of hollow metal nanoparticles and investigates the optical properties of these nanoparticles. Changes of localized surface plasmon resonance from solid to hollow nanoparticles are monitored by UV-vis spectroscopy, while corresponding morphological changes are validated by transmission electron microscopy. The optical properties are further investigated by the use of a laser pointer, laser irradiation, and surface-enhanced Raman spectroscopy. By performing these experiments, students gain practical knowledge for the synthesis of hollow metal nanoparticles and the underlying structure-dependent optical properties.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: Teachers
Language: English
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Grant or Contract Numbers: EEC-1138248