Direct synthesis of singular silver dendrites over TiO2 nanotubes using pentetic acid as capping agent
Silver dendritical nanostructures are known for their interesting electronic and optical properties com-pared to other Ag morphologies, vastly utilized for covering TiO2nanotubes. However, multiple stepsare required to assemble both of these structures. This paper reports a novel synthesis of vertic...
| Autores: | , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2020 |
| País: | Brasil |
| Recursos: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositório: | Repositório Institucional da UFRGS |
| Idioma: | inglês |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/220775 |
| Acesso em linha: | http://hdl.handle.net/10183/220775 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Nanotubos Anodização Dióxido de titânio DTPA Dendritic growth Anodization Nanostructured materials Interfaces |
| Resumo: | Silver dendritical nanostructures are known for their interesting electronic and optical properties com-pared to other Ag morphologies, vastly utilized for covering TiO2nanotubes. However, multiple stepsare required to assemble both of these structures. This paper reports a novel synthesis of verticallyaligned TiO2nanotubes covered by a forest of silver dendrites, obtained through the incorporation of elec-trodeposition (ED) cycle before the anodization process. Utilizing pentetic acid as a capping agent pro-motes superficial silver nucleation in both ED and anodization cycles. Also, testing varied ED cyclelengths provided information regarding the morphological evolution of the hierarchical silver structures,as some branches adopted a 90°angle from the central axis. |
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