Synthesis of hollow Prussian blue cubes as an electrocatalyst for the reduction of hydrogen peroxide
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A cubic Prussian blue (PB) with the hollow interior was successfully synthesized by direct dissociation followed by a controlled self-etching process. The etching process also made hollow Prussian blue (HPB) a porous structure. SEM, TEM and XRD were employed to confirm the structure and morphology of the prepared materials. Then HPB and chitosan (CS) were deposited on a glassy carbon electrode (GCE), used to determine H2O2. The amperometric performance of HPB/CS/GCE was investigated. It was found that the special structure of HPB exhibits enhanced performance in the H2O2 sensing.
KeywordsPrussian blue hollow structure hydrogen peroxide sensor non-enzyme electrocatalyst
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The authors gratefully acknowledge the financial support of this project by the National Natural Science Foundation of China (Grant No. 21575113), the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20126101110013), the Natural Science Fund of Shaanxi Province in China (Grant No. 2013KJXX-25), and the Scientific Research Foundation of Shaanxi Provincial Key Laboratory (Grant Nos. 15JS100 and 16JS099).