钯镍合金纳米粒子包覆碳纤维氢敏感材料的制备及性能  

Fabrication and Sensing Property of Pd-Ni Alloy Nanoparticles-coated Carbon Fibers as a Hydrogen Sensitive Material

作　　者：司薇薇[1] 余刚[1] 唐莉莉[1] 周怡波[1] 张俊[1] 

机构地区：[1]湖南大学化学化工学院,化学生物传感与计量学国家重点实验室,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2011年第9期70-74,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(20373015);湖南省自然科学基金资助项目(10JJ3016)

摘　　要：采用'0.5V的沉积电位在碳纤维基底上沉积出尺寸可控的含镍8.5%Pd-Ni合金纳米粒子,可用于传感氢气.钯镍合金纳米粒子的尺寸对传感器的性能有影响,180nm的钯镍合金纳米粒子的氢敏感性能好,在0～6%的氢环境中,其响应电流随浓度的增大而增加,在氢气体积分数为6%的氢气中,灵敏度可达38.35%.Controllable size Pd-Ni alloy nanoparticles with Ni8.5 % were electrodeposited on carbon fiber by using-0.5 V potential.The nanoparticles-coated carbon fibers could be applied for sensing hydrogen.The size of the nanoparticles affected the hydrogen sensing property of the sensor.The nanoparticles with 180 nm diameter showed good hydrogen sensing property.The response current of the sensor increased with hydrogen concentration from 0 to 6%.In 6% H2,the sensitivity of the nanoparticle sensor reached 38.35%.

关 键 词：钯镍合金 纳米粒子 电沉积 氢传感器 氢敏性能 

分 类 号：O646[理学—物理化学]