Synthesis, characterization, and electrochemical applications of carbon nanoparticles derived from castor oil soot

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• 作者：K. Sudhakara Prasad¹ ; Min-Chieh Chuang¹ ; Ja-An Annie Ho ; ^{jaho@ntu.edu.tw}
• 关键词：Carbon nanoparticles ; Cyclic voltammetry ; Modified electrodes ; Electrocatalysis
• 刊名：Talanta
• 出版年：2012
• 出版时间：15 January, 2012
• 年：2012
• 卷：88
• 期：Complete
• 页码：445-449
• 全文大小：776 K

文摘

A simple procedure for the modification of carbon nanoparticles (CNPs) from castor oil soot using acid treatment was described herein. Characterization studies revealed the presence of edge plane sites and surface carbon-oxygen functionalities at the surface of the CNP material. Voltammetric studies revealed the increased electrochemical activity of the CNP-modified electrode toward various biologically important molecules, including dopamine, uric acid, dihydronicotinamide adenine dinucleotide, tyrosine, and serotonin, relative to those obtained using the unmodified electrode. The improved electro-oxidation potentials for these compounds¡ªand, thereby, the enhanced sensitivity of related sensors¡ªwas due directly to the presence of surface C(¦Ä+)O(¦Ä? functional groups and the greater number of edge plane sites developed after acid treatment of the soot sample.