Facile synthesis and electrochemical properties of octahedral gold nanocrystals
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 preferentia...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Springer Netherlands
2011
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/13655 |
| _version_ | 1848748403965558784 |
|---|---|
| author | Wang, D. Huang, J. Liu, Yang Han, X. You, T. |
| author_facet | Wang, D. Huang, J. Liu, Yang Han, X. You, T. |
| author_sort | Wang, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T07:04:30Z |
| format | Journal Article |
| id | curtin-20.500.11937-13655 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:04:30Z |
| publishDate | 2011 |
| publisher | Springer Netherlands |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-136552017-09-13T15:01:41Z Facile synthesis and electrochemical properties of octahedral gold nanocrystals Wang, D. Huang, J. Liu, Yang Han, X. You, T. Nanocrystal Single-crystal Electrocatalytic activity Cyclic voltammetry Shape-control 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. 2011 Journal Article http://hdl.handle.net/20.500.11937/13655 10.1007/s11051-010-0014-3 Springer Netherlands restricted |
| spellingShingle | Nanocrystal Single-crystal Electrocatalytic activity Cyclic voltammetry Shape-control Wang, D. Huang, J. Liu, Yang Han, X. You, T. Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title | Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title_full | Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title_fullStr | Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title_full_unstemmed | Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title_short | Facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| title_sort | facile synthesis and electrochemical properties of octahedral gold nanocrystals |
| topic | Nanocrystal Single-crystal Electrocatalytic activity Cyclic voltammetry Shape-control |
| url | http://hdl.handle.net/20.500.11937/13655 |