Prussian Blue-modified ultramicroelectrodes for mapping hydrogen peroxide in scanning electrochemical microscopy (SECM)статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We report on the approach to form stable Prussian Blue-based layers on ultramicroelectrodes for scanning electrochemical microscopy (SECM) imaging. Accordingly, gold ultramicroelectrodes of 10 mkm and 25 mkm in diameter were modified with the advanced electrocatalyst for hydrogen peroxide reduction. To improve the ferric hexacyanoferrate stability (which is decreased as the electrode diameter is decreased), a platinum/carbon composite material deposited using focused ion beam technique was used as an intermediate layer. The resulting modified ultramicroelectrodes showed improved sensitivity peculiar to Prussian Blue (PB) electrocatalytic activity and an appropriate long-term stability for hydrogen peroxide mapping using SECM.