Honeycomb-like Porous Carbon-Cobalt Oxide Nanocomposite for High-Performance Enzymeless Glucose Sensor and Supercapacitor Applications

Rajesh Madhu, Vediyappan Veeramani, Shen Ming Chen, Arumugam Manikandan, An Ya Lo, Yu Lun Chueh

Research output: Contribution to journalArticlepeer-review

149 Citations (Scopus)

Abstract

Herein, we report the preparation of Pongam seed shells-derived activated carbon and cobalt oxide (∼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 and supercapacitor applications outperforming the related carbon based modified electrodes, rendering practical industrial applications. (Figure Presented).

Original languageEnglish
Pages (from-to)15812-15820
Number of pages9
JournalACS Applied Materials and Interfaces
Volume7
Issue number29
DOIs
Publication statusPublished - Jul 29 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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