Nanostructured thin films obtained by electrodeposition over a colloidal crystal template: applications in electrochemical devices

Journal of the Brazilian Chemical Society

Vinicius R. Gonçales²  Mariana P. Massafera²  Tânia M. Benedetti²  David G. Moore¹  Susana I. Córdoba De Torresi²  Roberto M. Torresi² 

[1] ,Universidade de São Paulo Instituto de Química São Paulo

关键词: colloidal particle templates;    polystyrene;    macroporous materials;    sensors;    supercapacitors;   

DOI  :  10.1590/S0103-50532009000400010

来源: SciELO

【 摘 要 】

Colloidal particles have been used to template the electrosynthesis of several materials, such as semiconductors, metals and alloys. The method allows good control over the thickness of the resulting material by choosing the appropriate charge applied to the system, and it is able to produce high density deposited materials without shrinkage. These materials are a true model of the template structure and, due to the high surface areas obtained, are very promising for use in electrochemical applications. In the present work, the assembly of monodisperse polystyrene templates was conduced over gold, platinum and glassy carbon substrates in order to show the electrodeposition of an oxide, a conducting polymer and a hybrid inorganic-organic material with applications in the supercapacitor and sensor fields. The performances of the resulting nanostructured films have been compared with the analogue bulk material and the results achieved are depicted in this paper.

【 授权许可】

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