无电沉积法制备硼掺杂石墨烯负载钯纳米颗粒催化剂及对过氧化氢的电化学检测  

Pd nanoparticles on boron doped graphene catalyst for electrochemical detection of hydrogen peroxide prepared by electroless deposition method

作　　者：胡娅琪 张博[1,2] 姚琳[1] 秦蓓[1,2] HU Yaqi;ZHANG Bo;YAO Lin;QIN Bei(College of Pharmacy,Xi'an Medical University,Xi'an 710021,China;Institute of Medicine,Xi'an Medical University,Xi'an 710021,China)

机构地区：[1]西安医学院药学院,西安710021 [2]西安医学院药物研究所,西安710021

出　　处：《分析试验室》2022年第9期1065-1069,共5页Chinese Journal of Analysis Laboratory

基　　金：陕西省教育厅服务地方专项基金(19JC035);陕西省教育厅专项科研计划(20JK0892);陕西省重点研发计划项目(2017SF-345);西安医学院博士科研启动基金(2017DOC07)资助。

摘　　要：利用硼掺杂石墨烯的大π共轭结构和还原性,以硼掺杂石墨烯为还原剂和稳定剂,通过无电沉积法制备硼掺杂石墨烯负载钯纳米颗粒催化剂。钯纳米颗粒尺寸约为6.5 nm,均匀地分散在硼掺杂石墨烯表面。将此催化剂修饰在玻碳电极表面,制备得到的电化学传感器对H_(2)O_(2)具有良好的电化学催化效果,对H_(2)O_(2)检测具有较宽的线性范围(2.5~300μmol/L)及较低的检出限(830 nmol/L),并成功的应用于实际样品牛奶中H_(2)O_(2)的检测。Taking advantage of large conjugated structure and reductivity of boron-doped graphene,the palladium nanoparticles/boron-doped graphene catalyst was prepared by electroless deposition method using boron-doped graphene as reductant and stabilizer.The average size of palladium nanoparticles highly dispersed on the surface of boron-doped graphene was about 6.5 nm.The electrochemical sensor was prepared by modifying the as-formed catalyst on the surface of glassy carbon electrode.The obtained electrochemical sensor exhibited an excellent electrochemical catalytic activity for H_(2)O_(2).It exhibited high sensitivity with the detection limit as low as 830 nmol/L and good linearity in the range of 2.5-300μmol/L for detection of H_(2)O_(2).It could be utilized for the determination of H_(2)O_(2)in milk samples.

关 键 词：硼掺杂石墨烯 钯纳米颗粒 电化学催化 过氧化氢 

分 类 号：O657.1[理学—分析化学]