期刊
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
卷 58, 期 5, 页码 688-693出版社
CHINESE CHEMICAL SOC
DOI: 10.1002/jccs.201190107
关键词
Gold nanoparticles; Pencil graphite; Electrodeposition; Fast scan cyclic voltammetry
资金
- Universiti Sains Malaysia (USM) [1001/ PKIMIA/ 811056]
Gold nanoparticles (AuNPs) were electrodeposited on the surface of pencil graphite (PG) by fast scan cyclic voltammetry without using any additives in acidic medium. The effect of deposition time on the size of electrodeposited AuNPs was investigated in sulfuric acid as a supporting electrolyte. The deposition time was varied by varying the scan rate, number of cycles and applied potential range. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used for characterization of PG and electrodeposited AuNPs. The results confirmed that nanosized gold particles (20 +/- 8 nm) were deposited on the PG substrate with almost spherical geometry.
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