Particle and Aerosol Research Vol. 10, No. 2, June 2014 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Preparation of Graphene-Palladium Composite by Aerosol Process and It¡¯s Characterization for Glucose Biosensor
±è¼±°æ, ÀåÈñµ¿, ÀåÇѱÇ, ÃÖÁ¤¿ì
Abstracts
Palladium (Pd) nanoparticles attached graphene (GR) composite was synthesized for an enhanced glucose biosensor.
Aerosol spray pyrolysis (ASP) was employed to synthesize the GR-Pd composite using a colloidal mixture of graphene
oxide (GO) and palladium chloride (PdCl2) precursor. The effects of the weight ratio of the Pd/GR on the particle
properties including the morphology and crystal structure were investigated. The morphology of GR-Pd composites
was generally the shape of a crumpled paper ball, and the average composite size was about 1 ¥ìm. Pd nanoparticles
less than 20 nm in diameter were deposited on GR sheets and the Pd nanoparticles showed clear crystallinity. The
characteristic of the glucose biosensor fabricated with the as-prepared GR-Pd composite was tested through cyclic
voltammetry measurements. The biosensor exhibited a high current flow as well as clear redox peaks, which resulted
in a superior ability of the catalyst in terms of an electrochemical reaction. The highest sensitivity obtained from the
amperometric response of the glucose biosensor was 14.4 ¥ìA/mM¡¤§².
Keywords£ºAerosol spray pyrolysis, Glucose biosensor, GR-Pd composite, Cyclic voltammetry
File
2ÀåÈñµ¿(53-59).pdf
Download