期刊
BIOSENSORS & BIOELECTRONICS
卷 165, 期 -, 页码 -出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2020.112373
关键词
Cage-confinement; Size-controlled Mo2C; Electrochemical sensor; Acetaminophen; Dopamine
类别
资金
- National Natural Science Foundation of China, China [51902222, 51603142, U1610255, 51772151]
- Natural Science Foundation of Shanxi Province, China [201701D221072]
- China Scholarship Council, China [201806935057]
- Shanxi Provincial Key Innovative Research Team in Science and Technology, China [2015013002-10, 201605D131045-10]
- Key R&D Program of Shanxi Province, China [201903D421077]
Herein, size-controllable molybdenum carbide nanoparticles (Mo2C NPs) encapsulated by N, P-codoped carbon shells which simultaneously wrapping on the surface of carbon nanotube (Mo2C@NPC/CNT) is synthesized through a molecular-scale cage-confinement pyrolysis route. Such confinement achieves a good coating and protection of Mo2C and the effective control over the size of Mo2C NPs ranging from 2.5 to 10 nm facilitates a rational investigation into their electrochemical sensor behavior at nanometer scales. The optimized structure consisting of Mo2C nanoparticles with size of similar to 5 nm showed an outstanding electrochemical response toward dopamine (DA) and acetaminophen (AC) with detection limits (S/N = 3) of 0.008 mu M for AC and 0.01 mu M for DA.
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