摘要
以PbCl_2为介质,采用无电沉积方法制备了掺钯碳纳米管,并对其形貌和结构进行了表征.结果表明,掺入的钯纳米粒子分布均匀、粒径均一,掺杂量与粒径尺寸适中;所掺入的纳米粒子的成分为0价态的钯,且掺杂类型为p型.电接触性能测试结果表明,掺钯碳纳米管与金电极间的接触电阻得到了明显改善,阻值平均降幅高达近71. 09%.
Multi-walled carbon nanotubes(MWCNTs)were oxidized by mixed acid,and immersed into the electroless deposition solution of palladium.After ultrasonicating,resting,and stirring respectively for 5 or 10 min,palladium-doped MWCNTs were prepared,and their morphology and structure were characte-rized.The results showed that the nanoparticles were uniformly distributed onto the MWCNTs with uniform and moderate particle size and doping amount after 5 min of stirring.At the same time,the composition of the doped nanoparticles was detected as zero-valent palladium and the doping type was p-type.In the electrical contact performance test,the contact resistance between the palladium-doped CNTs and the gold electrode was significantly improved,and the average value of the resistance decreased by nearly 71.09%.
作者
孙蒙蒙
常春蕊
张志明
安立宝
SUN Mengmeng;CHANG Chunrui;ZHANG Zhiming;AN Libao(Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials,College of Mechanical Engineering,North China University of Science and Technology,Tangshan 063210,China;College of Sciences,North China University of Science and Technology,Tangshan 063210,China;College of Material Science and Engineering,Key Laboratory of Functional Polymer Materials of Tangshan,North China University of Science and Technology,Tangshan 063210,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2019年第1期11-17,共7页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:51472074)
河北省"百人计划"项目(批准号:E2012100005)资助~~
关键词
多壁碳纳米管
掺杂
无电沉积
钯纳米粒子
接触电阻
Multi-walled carbon nanotubes
Doping
Electroless deposition
Palladium nanoparticles
Contact resistance
