Nanodiamond pretreatment for the modification of diamond electrodes by platinum nanoparticles

作者：Hu J; Lu X; Foord J S^*

来源：Electrochemistry Communications, 2010, 12(5): 676-679.

DOI：10.1016/j.elecom.2010.03.004

• Platinum
• Diamond
• Electrodeposition
• Hydrogen peroxide

The preparation of Pt-modified diamond electrodes by electrodeposition is known to be hampered by poor particle adhesion and a lack of uniformity in the spatial distribution of the deposit over the electrode surface. Here we demonstrate the results can be improved significantly if the electrode is given a simple ultrasonic treatment in the presence of diamond powders prior to electrodeposition. An improvement in spatial distribution and a higher Pt dispersion are seen and, especially, a greater Pt particle stability is observed. Application of these Pt modified diamond electrodes in the electrochemical oxidation of hydrogen peroxide is demonstrated.

• 出版日期2010-5
• 单位东北大学