Low temperature thermal treatment of hexamethylenetetramine to synthesize nitrogen-doped carbon for non-enzymatic H₂O₂ sensing

详细信息    查看全文

• 作者：Sen LiuAuthor Vitae ; Bo YuAuthor Vitae ; Teng FeiAuthor Vitae ; Tong Zhang ; ^{zhangtong@jlu.edu.cn" class="auth_mail}Author Vitae
• 关键词：Nitrogen-doped carbon ; Low temperature ; Heat treatment ; Metal-free ; H2O2 sensing
• 刊名：Sensors and Actuators B: Chemical
• 出版年：1 October 2014
• 年：2014
• 卷：201
• 期：Complete
• 页码：240-245
• 全文大小：1572 K

文摘

Nitrogen-doped carbon (N-carbon) materials have been prepared by low temperature (300 °C) heat treatment of hexamethylenetetramine in air. The combined characterizations of X-ray diffraction pattern, scanning electron microscopy, and X-ray photoelectron spectroscopy indicate the successful preparation of N-carbon materials. Most importantly, the N-carbon exhibits catalytic activity toward electrochemical reduction of H₂O₂, leading to a novel metal-free non-enzymatic H₂O₂ sensor. The linear detection range is estimated to be from 0.1 mM to 40 mM (r = 0.996), and the detection limit is estimated to be 90 渭M at a signal-to-noise ratio of 3.