掺钯碳纳米管的制备及电接触性能

doi:10.7503/cjcu20180506

高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (1): 11.doi: 10.7503/cjcu20180506

掺钯碳纳米管的制备及电接触性能

孙蒙蒙¹, 常春蕊²(), 张志明³, 安立宝¹()

1. 华北理工大学机械工程学院, 河北省无机非金属材料重点实验室, 2. 理学院, 3. 材料科学与工程学院, 唐山市功能高分子材料重点实验室, 唐山 063210

收稿日期:2018-07-17 出版日期:2019-01-10 发布日期:2018-12-20
作者简介:
联系人简介: 安立宝, 男, 博士, 教授, 主要从事碳纳米管接触电阻方面的研究. E-mail: lan@ncst.edu.cn;常春蕊, 女, 博士, 副教授, 主要从事碳纳米管的分散与自组装行为方面的研究. E-mail: changchunrui@ncst.edu.cn
基金资助:
国家自然科学基金(批准号: 51472074)和河北省“百人计划”项目(批准号: E2012100005)资助.

Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes^†

SUN Mengmeng¹, CHANG Chunrui^2,^*(), ZHANG Zhiming³, AN Libao^1,^*()

1. Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Mechanical Engineering, 2. College of Sciences, 3. College of Material Science and Engineering, Key Laboratory of Functional PolymerMaterials of Tangshan, North China University of Science and Technology, Tangshan 063210, China

Received:2018-07-17 Online:2019-01-10 Published:2018-12-20
Contact: CHANG Chunrui,AN Libao E-mail:changchunrui@ncst.edu.cn;lan@ncst.edu.cn
Supported by:
† Supported by the National Natural Science Foundation of China(No.51472074) and the “Hundred Talents Program” of Hebei Province, China(No.E2012100005).

摘要/Abstract

摘要：

以PbCl₂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%.

关键词: 多壁碳纳米管, 掺杂, 无电沉积, 钯纳米粒子, 接触电阻

Abstract:

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%.

Key words: Multi-walled carbon nanotubes, Doping, Electroless deposition, Palladium nanoparticles, Contact resistance

中图分类号:

TrendMD:

孙蒙蒙, 常春蕊, 张志明, 安立宝. 掺钯碳纳米管的制备及电接触性能. 高等学校化学学报, 2019, 40(1): 11.

SUN Mengmeng,CHANG Chunrui,ZHANG Zhiming,AN Libao. Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes^†. Chem. J. Chinese Universities, 2019, 40(1): 11.

图/表 8

Fig.1 SEM images of MWCNT(A) and MWCNT-T(B)

Scheme 1 Schematic diagram of doping CNT with Pd nanoparticles by electroless deposition method

Fig.2 SEM images of Pd-doped MWCNT samples prepared under different deposition conditions and deposition time(A) MWCNT-Pd-U-5; (B) MWCNT-Pd-U-10; (C) MWCNT-Pd-R-5; (D) MWCNT-Pd-R-10; (E), (G) MWCNT-Pd-S-5; (F), (H) MWCNT-Pd-S-10.

Fig.3 TEM(A, B) and HRTEM(C) images of MWCNT-Pd-S-5 at different magnification

Fig.4 XPS spectra of MWCNT(A), MWCNT-T(B) and MWCNT-Pd-S-5(C, D)

Fig.5 Raman spectra of MWCNT(a), MWCNT-T(b) and MWCNT-Pd-S-5(c)

Fig.6 Comparison of contact resistance between MWCNT and the gold electrodes before and after Pd doping

Fig.7 SEM images of assembling MWCNT-Pd-S-5 to the gold electrode pairs with different MWCNT number MWCNT number: (A), (B) 1; (C) 2; (D) 4; (E) 6; (F) 8.

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掺钯碳纳米管的制备及电接触性能

Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes^†

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掺钯碳纳米管的制备及电接触性能

Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes†

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Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes^†