An electrochemical study of tin oxide thin film in borate buffer solutions

Journal of the Brazilian Chemical Society

Raül Díaz²  Ismael Díez-pérez²  Pau Gorostiza²  Fausto Sanz²  Joan R. Morante¹ 

[1] ,University of Barcelona Department of Physical Chemistry Barcelona,Spain

关键词: tin oxide;    anodic films;    borate buffer;    gas sensors;   

DOI  :  10.1590/S0103-50532003000400006

来源: SciELO

【 摘 要 】

The electrochemical behavior of tin polycrystals in borate buffer solutions at pH 7.5 was systematically investigated using cyclic voltammetry, EC-STM and electrochemical impedance measurements. A systematic shift to more negative values of the potentials corresponding either to the major reduction peak either to the hydrogen evolution was measured when the anodization potential used for film growth was increased. A discussion about the different oxides there formed was included and a reassignation of tin oxidation and tin oxides reduction processes was given.

【 授权许可】

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