AI Article Synopsis
- Porous diamond-like carbon (DLC) electrodes were created by depositing a DLC film on vertically aligned multiwalled carbon nanotubes (VACNT), enhancing surface area and promoting faster charge transfer.
- The DLC:VACNT electrodes demonstrated potential in electrochemical applications, specifically in detecting neurotransmitters like dopamine (DA) and epinephrine (EP) and the endocrine disruptor acetaminophen (AC).
- Utilizing cyclic voltammetry, the electrodes achieved high analytical sensitivity and stability, with low detection limits of 2.9, 4.5, and 2.3 μmol L(-1) for DA, EP, and AC, respectively.
Article Abstract
Porous diamond-like carbon (DLC) electrodes have been prepared, and their electrochemical performance was explored. For electrode preparation, a thin DLC film was deposited onto a densely packed forest of highly porous, vertically aligned multiwalled carbon nanotubes (VACNT). DLC deposition caused the tips of the carbon nanotubes to clump together to form a microstructured surface with an enlarged surface area. DLC:VACNT electrodes show fast charge transfer, which is promising for several electrochemical applications, including electroanalysis. DLC:VACNT electrodes were applied to the determination of targeted molecules such as dopamine (DA) and epinephrine (EP), which are neurotransmitters/hormones, and acetaminophen (AC), an endocrine disruptor. Using simple and low-cost techniques, such as cyclic voltammetry, analytical curves in the concentration range from 10 to 100 μmol L(-1) were obtained and excellent analytical parameters achieved, including high analytical sensitivity, good response stability, and low limits of detection of 2.9, 4.5, and 2.3 μmol L(-1) for DA, EP, and AC, respectively.
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