Journal article
Ultrasensitive binder-free glucose sensors based on the pyrolysis of in situ grown Cu MOF
A non-enzymatic glucose sensor based on carbon/Cu composite materials was developed by the in-situ growth and subsequent pyrolysis of metal-organic frameworks (MOFs) on Cu foam. After pyrolysis, SEM, HRTEM and STEM-EELS were employed to clarify the hierarchical Cu@porous carbon electrode. It is found that the Cu nanoparticles are uniformly embedded in the carbon matrix, attached on the carbon layer closely.
The electrocatalytic activity of the Cu@porous carbon matrix electrode for glucose sensing was explored by cyclic voltammetry (CV) and chronoamperometry. The resulting Cu@porous carbon matrix electrode displays ultrahigh sensitivity (10.1 mA cm−2 mM−1), low detection limit (<1 μM), short response time (less than 2 s) and good stability, indicating that the developed electrode is a promising candidate material for glucose sensors.
Language: | English |
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Year: | 2017 |
Pages: | 272-281 |
ISSN: | 18733077 and 09254005 |
Types: | Journal article |
DOI: | 10.1016/j.snb.2017.07.024 |
ORCIDs: | Li, Qingfeng |