Electroless deposition of Au around electrochemically evolved hydrogen bubbles
In this report, we use stripe-patterned substrates and TEM grids as working electrodes to demonstrate that electrochemically evolved hydrogen bubbles can serve as templates and reducing agents for electroless deposition of Au from a Na 3Au(SO 3) 2 electrolyte to form hollow particles. This new hollo...
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| Veröffentlicht in: | Electrochimica acta 2011-10, Vol.56 (24), p.8319-8324 |
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| container_issue | 24 |
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| container_title | Electrochimica acta |
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| creator | Huang, Chienwen Li, Yi-Jiun Muangphat, Chivarat Hao, Yaowu |
| description | In this report, we use stripe-patterned substrates and TEM grids as working electrodes to demonstrate that electrochemically evolved hydrogen bubbles can serve as templates and reducing agents for electroless deposition of Au from a Na
3Au(SO
3)
2 electrolyte to form hollow particles. This new hollow nanoparticle formation mechanism, which is termed as bubble template synthesis, has the potential to become a general route to the fabrication of various metallic hollow nanoparticles. We have also found that the addition of Ni
2+ ions in the electrolyte has an effect on the particle formation process. Electrodeposited metallic Ni enhances the hydrogen evolution and therefore the hollow particle formation. It also leads to an improved size distribution of the hollow particles. |
| doi_str_mv | 10.1016/j.electacta.2011.07.002 |
| format | Article |
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3Au(SO
3)
2 electrolyte to form hollow particles. This new hollow nanoparticle formation mechanism, which is termed as bubble template synthesis, has the potential to become a general route to the fabrication of various metallic hollow nanoparticles. We have also found that the addition of Ni
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3Au(SO
3)
2 electrolyte to form hollow particles. This new hollow nanoparticle formation mechanism, which is termed as bubble template synthesis, has the potential to become a general route to the fabrication of various metallic hollow nanoparticles. We have also found that the addition of Ni
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3Au(SO
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| fulltext | fulltext |
| identifier | ISSN: 0013-4686 |
| ispartof | Electrochimica acta, 2011-10, Vol.56 (24), p.8319-8324 |
| issn | 0013-4686 1873-3859 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_926312277 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Bubbles Chemistry Electrochemistry Electrodeposited Ni Electrodeposition Electrodes Electroless deposition Electroless deposition of Au Electrolytes Exact sciences and technology General and physical chemistry Gold Hydrogen bubbles Hydrogen evolution Nanocomposites Nanomaterials Nanostructure Study of interfaces |
| title | Electroless deposition of Au around electrochemically evolved hydrogen bubbles |
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