期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 201, 期 -, 页码 240-245出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.05.032
关键词
Nitrogen doped carbon; Low temperature; Heat treatment; Metal free; H2O2 sensing
资金
- National Natural Science Foundation of China [51202085]
Nitrogen-doped carbon (N-carbon) materials have been prepared by low temperature (300 degrees 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 mu M at a signal-to-noise ratio of 3. (C) 2014 Elsevier B.V. All rights reserved.
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