首页|Multistage carbon nanotubes grown on foamed nickel with organic solutions as multifunctional high performance electrodes
Multistage carbon nanotubes grown on foamed nickel with organic solutions as multifunctional high performance electrodes
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NSTL
Elsevier
? 2022 Elsevier B.V.In this study, carbon nanotubes (CNTs) are grown by easy method with organic solutions upon foamed nickel substrates. It is found that ethanol is most likely to grow higher quality CNTs than other organic solutions without deoxidation gas. The foamed nickel not only acted as substrates but also uesed as catalyst to grow CNTs and then formed good electrical and thermal contact with CNTs. Moerover, the foamed nickel has intrinsic low contact resistance with CNTs and their multistage structure also makes it as multifunctional electrode for electrical devices. With multistage and high enhancement factor, these CNTs grown on foamed nickel have better field emission properties with turn-on field at 1.4 V/μm and the threshold-field at 2.9 V/μm. With high specific surface area, it is also has high sensitive property to detect heavy metal ion such as Pb2+. The results show it has a good linear relationship exists in the range of 100–400 ppb, and the limit of detection is about 0.955 μg/L Pb2+.This easy CNTs growth method offers a potential application in making field emission electron source and other electrical electrodes.
Liu J.、He N.、Gui Z.、Yan Z.、Li X.、Jiang R.、Yang K.、Zhao J.、Zeng B.、He J.
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National Key Laboratory of Science and Technology on Vacuum Electronics School of Electronic Science and Engineering University of Electronic Science and Technology of China
NSTL
Elsevier
