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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Pulse Electrodeposition of Silver Nanoparticles on Carbon Paper Electrode for Non-Enzymatic Electrochemical Detection of Nitric Oxide

2019년 8월 29일 12시 06분 38초
PHYS.P-211 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (목요일) 11:00~12:30
Physical Chemistry
저자 및
Min young Cho, In Yub Hwang1, Do Yun Park1, Kuan Soo Shin*
Department of Chemistry, Soongsil University, Korea
1Department of ICMC Convergence Technology, Soongsil University, Korea
A general approach for improving the performance of a catalyst without changing the properties of the material is to adjust its morphological structure to have a large surface area and high catalytic activity. The hierarchical 3-D catalysts with large surface area and good activity can be produced when incorporated into gas diffusion electrodes (i.e., carbon paper). In this study, silver nanoparticles (AgNPs) were directly deposited on carbon paper (CP) for the non-enzymatic detection of nitric oxide ions using pulse electrodeposition and sonication techniques. The application of sonication and potentiostatic pulse deposition can improve the mass transfer of Ag ions from the bulk into the surface of CP electrode. The deposition characteristics of AgNPs on CP were investigated by using scanning electron microscopy, X-ray photoelectron spectroscopy, and powder X-ray diffraction. Due to the large surface area of CP and high catalytic activity of AgNPs, nitric oxide (NO) ions could be detected with high sensitivity using an amperometry technique.