Abstract
High-yield octahedral gold nanocrystals of ~45 nm in size have been facilely synthesized by one-pot reduction of HAuCl4 using formic acid in cetyltrimethylammonium bromide (CTAB) aqueous solution. The results showed that CTAB can promote the
formation of single-crystalline nucleation and preferentially adsorb on the (111) planes of gold nanocrystals, resulting in
the formation of octahedral gold nanocrystals. Formic acid acted as not only a mild reducing agent, but also could promote
the formation of (111) facet. The octahedral gold nanocrystals exhibited similar cyclic voltammetry (CV) curves to single-crystal
Au (111) electrode and excellent electrocatalytic activity for methanol oxidation. This synthetic strategy may open new route
for facile synthesis of shape-controlled metal nanoparticles.
formation of single-crystalline nucleation and preferentially adsorb on the (111) planes of gold nanocrystals, resulting in
the formation of octahedral gold nanocrystals. Formic acid acted as not only a mild reducing agent, but also could promote
the formation of (111) facet. The octahedral gold nanocrystals exhibited similar cyclic voltammetry (CV) curves to single-crystal
Au (111) electrode and excellent electrocatalytic activity for methanol oxidation. This synthetic strategy may open new route
for facile synthesis of shape-controlled metal nanoparticles.
- Content Type Journal Article
- Category Research Paper
- DOI 10.1007/s11051-010-0014-3
- Authors
- Dawei Wang, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
- Jianshe Huang, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
- Yang Liu, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
- Xinyi Han, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
- Tianyan You, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
- Journal Journal of Nanoparticle Research
- Online ISSN 1572-896X
- Print ISSN 1388-0764
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