에어로졸 공정에 의한 그래핀-팔라듐 복합체 제조 및 글루코스 바이오센서 특성평가

다국어 초록 (Multilingual Abstract)

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 μm. 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 μA/mM·㎠.

목차 (Table of Contents)

• Abstract
• 1. 서 론
• 2. 실험방법
• 2.1. 그래핀-팔라듐(GR-Pd) 복합체 제조
• 2.2. 글루코스 바이오센서용 전극제작
• 2.3. 분석
• 3. 결과 및 고찰
• 4. 결 론
• 감사의 글
• Reference