Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 29, Pages 15812-15820Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04132
Keywords
pongam seed shells; activated carbon; cobalt oxide nanoballs; electrochemical glucose biosensor; supercapacitor
Funding
- Ministry of Science and Technology, Taiwan [NSC101-2113-M-027-001-MY3]
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Herein, we report the preparation of Pongam seed shells-derived activated carbon and cobalt oxide (similar to 2-10 nm) nanocomposite (PSAC/Co3O4) by using a general and facile. synthesis strategy. The as-synthesized PSAC/Co3O4 samples were characterized by a variety of physicochemical techniques. The PSAC/Co3O4-modified electrode is employed in two different applications such as high performance nonenzymatic glucose sensor and supercapacitor. Remarkably, the fabricated glucose sensor is exhibited an ultrahigh sensitivity of 34.2 mA mM(-1) cm(-2) with a very low detection limit (21 nM) and long-term durability. The PSAC/Co3O4 modified stainless steel electrode possesses an appreciable specific capacitance and remarkable long-term cycling stability. The obtained results suggest the as-synthesized PSAC/Co3O4 is more suitable for the nonenzymatic glucose sensor anti supercapacitor application outperforming the related carbon based modified electrodes, rendering practical industrial applications.
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