基于AuPd/CNT敏感材料的电化学传感器对对乙酰氨基酚的检测  

AuPd/CNT sensitive material based electrochemical sensor for acetaminophen detection

作　　者：许武韬 徐雪茹 徐甲强 董俊萍 XU Wutao;XU Xueru;XU Jiaqiang;DONG Junping(New Energy Sensor Technology Lab,Department of Chemistry,College of Science,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学理学院化学系创新能源与传感技术实验室,上海200444

出　　处：《电子元件与材料》2020年第3期1-8,共8页Electronic Components And Materials

基　　金：国家自然科学基金(61671284)。

摘　　要：金属纳米材料由于其自身优异的催化性能成为电化学催化剂发展最为迅速的一类催化材料,贵金属催化剂的性能尤为明显。本文利用湿化学法合成了粒径为(8.26±0.2)nm AuPd双金属纳米材料,并与多壁碳纳米管进行复合获得AuPd/CNT复合材料,以此作为敏感材料构建了电化学传感器。Au为主催化剂,Pd为助催化剂,双金属催化剂的协同作用有效地提升了催化性能。以AuPd双金属纳米材料构建的电化学传感器对对乙酰氨基酚(PA)的定量测定具有宽的线性范围(4~1000μmol/L)、低的检测限(0.05μmol/L)。将传感器用于感冒片剂中对乙酰氨基酚的定量测定取得满意的结果,表明AuPd双金属纳米材料在构建电化学传感器用于PA检测中具有良好的应用前景。Metal nanomaterials are the most rapidly developed catalytic materials due to their excellent catalytic properties.Among them,nanostructured noble metal electrocatalysts particularly exhibit the most remarkable catalytic performance.In this work,the AuPd bimetallic nanoparticles(~8.26±0.2 nm)were synthesized by wet chemical method and then decorated by multi-walled carbon nanotubes to prepare AuPd/CNT nanocomposite.The nanocomposites were then used as sensitive material to make an electrochemical sensor.For this composite,Au is used as the main catalyst and Pd as the co-catalyst.The as-synthesized bimetallic catalyst effectively enhances the catalytic performance due to the synergistic effect of the nanoparticles and CNT.The electrochemical sensor shows a wide linear range(4-1000μmol/L)and low detection limit(0.05μmol/L)for acetaminophen(PA).AuPd bimetallic nanomaterial based electrochemical sensor show great potential for quantitative determination of PA in cold tablet.

关 键 词：纳米金 金钯合金 电催化 电化学传感器 对乙酰氨基酚 碳纳米管 

分 类 号：O616[理学—无机化学]