Journal
ELECTROANALYSIS
Volume 32, Issue 5, Pages 931-938Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201900589
Keywords
nanosheet; nitrite; electrochemistry; amperometric
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Funding
- National Natural Science Foundation of China [21501106]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- Qingdao Municipal Science and Technology Commission [16-5-1-86-jch, 19-6-2-73-cg]
- Chemistry Faculty Talents Foundation of Qingdao University of Science and Technology
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PdFe ultrathin nanosheets (NSs) were prepared by one-step hydrothermal route. PdFe NSs showed superior catalytic activity towards the oxidation of nitrite due to the large surface area of 2 dimensional (2D) nanostructure and the synergetic effect between Pd and Fe. A sensitive and selective electrochemical nitrite sensing platform was designed base on PdFe NSs and the amperometric technique. The limit of detection (LOD) was found to be 0.12 mu M (S/N=3), with a linear relationship between nitrite concentration and response current in the range of 1-160 mu M. The nitrite sensor was applied to analysis of nitrite in tap water and sausage successfully.
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