Ionic Strength-Controlled Virtual Area of Mesoporous Platinum Electrode

摘要

Since it was first shown that a hexagonal liquid crystalline phase can be used as a template to fabricate mesoporous platinum (Pt) films by an electrochemical method, mesoporous Pt has received much attention with regard to its potential applications. Corresponding research efforts have produced a number of impressive applications. One of those ccomplishments is the enzymeless glucose sensor. The strategy involved exploiting the unusually large surface area of the mesoporous electrodes to selectively amplify the current due to the direct oxidation of glucose without an enzyme like glucose oxidase. Other examples than enzymeless glucose sensor include the amperometric enhancements of oxidation of methanol, hydrogen peroxide, and reduction of oxygen. Most of such applications utilize the high roughness of mesoporous Pt.