期刊
ACS SENSORS
卷 3, 期 8, 页码 1439-1444出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.8b00113
关键词
porous silicon; gold nanoparticle; two-dimensional electrochemiluminescence; explosive; discrimination
资金
- National Natural Science Foundation of China [21575127]
- Natural Science Foundation of Zhejiang province [Z15B050001]
This work established a rapid and sensitive explosive detection and recognition technique. We report a two-dimensional electrochemiluminescence (2-D ECL) method based on porous silicon (pSi) by monitoring the dynamic change in peak position and peak intensity of pSi-ECL. Gold nanoparticles (AuNPs) were deposited on the pSi surface to promote the electrochemical reaction and electron transfer efficiency at the pSi electrolyte interface. The 2-D ECL can effectively detect and discriminate different classes of explosives including nitro compounds, peroxides with nitrogen atoms, and peroxides without nitrogen atoms due to their different oxidation and electron transfer ability.
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