期刊
CHEMICAL COMMUNICATIONS
卷 54, 期 73, 页码 10340-10342出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc05837g
关键词
-
资金
- National Natural Science Foundation of China [21575137]
It is highly attractive to develop efficient electrocatalysts for the sensitive and selective detection of nitrite. In this communication, we report that an MnO2 nanoarray on titanium mesh (MnO2 NA/TM) is an efficient catalyst electrode for the electroreduction of nitrite. Electrochemical measurements demonstrate that the constructed MnO2 NA/TM sensor offers a superior sensing performance, having a short response time of 3 s, a wide detection range of 1.0 M to 5.0 mM, a low detection limit of 1.5 nM (S/N = 3), and a response sensitivity of 10301 A mM(-1) cm(-2), with satisfactory selectivity, specificity, and reproducibility. This electrochemical system is also capable of catalyzing the electrochemical reduction of nitrite to NH3 with a transformation efficiency of 6%.
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