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- W3115661489 endingPage "148760" @default.
- W3115661489 startingPage "148760" @default.
- W3115661489 abstract "Screen-printed carbon electrode (SPCE) contains excessive binder which covers the graphite electrode to affect SPCE performance. Oxygen plasma treatment has the potential to remove the binder effectively to enhance electrochemical activity. However, neither the mechanism of this enhancement nor the impact on reference and auxiliary electrodes is clear. To this end, SPCEs were subject to plasma treatment as a whole, followed by scanning electron microcopy and X-ray photoelectron spectroscopy assays to investigate topological and chemical variations on the SPCE surface. Electrochemical performance of plasma-treated SPCEs is dependent primarily on the plasma power, not the duration of treatment. Lower power (50 – 100 W) facilitated binder removal and exposure of both the edge and micro-edge planes of the graphite grains, resulting in significantly improved electrochemical sensitivity of SPCE. However, higher power (200 – 300 W) triggered a coating process due to re-deposition of etched binder to cover up both the basal and edge planes of the graphite grains, resulting in poorer performance of SPCE. Under optimized treatment conditions, SPCE displayed excellent intra-electrode repeatability, inter-electrode reproducibility, and improved electroactivity with no known negative impact from the oxidation of silver reference electrode, demonstrating that oxygen plasma pre-treatment holds potential for mass production of SPCE." @default.
- W3115661489 created "2021-01-05" @default.
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- W3115661489 date "2021-04-01" @default.
- W3115661489 modified "2023-10-15" @default.
- W3115661489 title "Simple pre-treatment by low-level oxygen plasma activates screen-printed carbon electrode: Potential for mass production" @default.
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- W3115661489 doi "https://doi.org/10.1016/j.apsusc.2020.148760" @default.
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