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Pt-Pd/UCNTs无酶生物传感器的研制与葡萄糖检测的应用 被引量:4

Fabrication and Its Glucose Detection Application of a Nonenzymatic Pt-Pd/UCNTs Biosensor
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摘要 研究了铂-钯/裂解碳纳米管(Pt-Pd/UCNTs)无酶生物传感器的研制及其对葡萄糖的电催化性能。扫描电子显微镜(SEM)、X射线光电子能谱(XPS)和循环伏安法(CV)分析发现,沉积的Pt-Pd金属纳米粒子颗粒均匀,且很好地分散在UCNTs修饰电极的表面上;与UCNTs、Pd/UCNTs和Pt/UCNTs修饰电极相比,Pt-Pd/UCNTs复合修饰电极对葡萄糖氧化具有更强的催化活性(如催化响应快和催化电流大),对葡萄糖检测有更好的选择性。 Fabrication and its electrocatalytic property on glucose of platinum-palladium/unzipped carbon nanotubes(Pt-Pd/UCNTs) nonenzymatic biosensor were studied in this manuscript.Scanning electron mi-croscopy(SEM),X-ray photoelectron spectroscopy(XPS),and cyclic voltammogram(CV) results indicated Pt-Pd nanoparticles were well-dispersed on the surface of UCNTs/GCE;compared with UCNTs,Pd/UCNTs,and Pt/UCNTs modified electrodes,Pt-Pd/UCNTs modified electrode exhibited strong electro-catalytic activity toward glucose oxidation,such as faster catalytic respond and larger respond current,and had better selectivity.
出处 《食品与生物技术学报》 CAS CSCD 北大核心 2012年第4期385-390,共6页 Journal of Food Science and Biotechnology
基金 国家自然科学基金项目(20773040) 教育部博士点基金新教师项目(20070561005) 广东省自然科学基金项目(07006555) 制浆造纸国家重点实验室开放基金项目(200904)
关键词 铂-钯/裂解碳纳米管 无酶葡萄糖生物传感器 电沉积 Pt-Pd/UCNTs,nonenzymatic glucose biosensor,electrodeposition
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