title: Honeycomb-like Porous Carbon-Cobalt Oxide Nanocomposite for High-Performance Enzymeless Glucose Sensor and Supercapacitor Applications.
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.
authors.affiliation: †Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Madhu
authors.affiliation: †Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Vediyappan
authors.initials: V
authors.lastname: Veeramani
authors.affiliation: †Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Shen-Ming
authors.initials: SM
authors.lastname: Chen
authors.affiliation: ‡Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan.
authors.forename: Arumugam
authors.initials: A
authors.lastname: Manikandan
authors.affiliation: #Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan.
authors.forename: An-Ya
authors.initials: AY
authors.lastname: Lo
authors.affiliation: ‡Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan.
authors.forename: Yu-Lun
authors.initials: YL
authors.lastname: Chueh
mesh_terms: D002244:Carbon / Q000737:chemistry*; D025802:Electric Capacitance; D011211:Electric Power Supplies; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005947:Glucose / Q000032:analysis* / Q000737:chemistry; D005949:Glucose Oxidase / Q000737:chemistry; D008422:Materials Testing; D008839:Microelectrodes; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D058608:Nanopores / Q000648:ultrastructure; D016062:Porosity; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D002244:Carbon; D005949:Glucose Oxidase; D005947:Glucose
keywords: activated carbon; cobalt oxide nanoballs; electrochemical glucose biosensor; pongam seed shells; supercapacitor