کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5352580 | 1503679 | 2013 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Concentration detection of carbon nanotubes in electrophoretic suspension with UV-vis spectrophotometry for application in field emission devices
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
A simple method to detect the concentration of multiwall carbon nanotubes (MWNTs) and Mg(NO3)2 in electrophoretic suspension was developed. It consists of UV-vis absorbance spectrophotometry for MWNTs and conductivity test for Mg2+. The obtained linear calibration curves were used to determine the amount of MWNTs and Mg2+ in the electrophoretic suspension. Furthermore, the morphologies, field emission properties and compositions of the electrophoretic deposited MWNTs films from suspension were investigated in detail. The results showed that the optimized concentration of MWNTs and Mg(NO3)2 were 0.12 g/L and 0.20 mmol/L in MWNTs electrophoretic suspension, respectively. Under the optimum conditions, the turn-on field of MWNTs cathode was 0.90 V/μm and the maximum emission current density was 2.90 mA/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 284, 1 November 2013, Pages 107-112
Journal: Applied Surface Science - Volume 284, 1 November 2013, Pages 107-112
نویسندگان
Yun Ye, Shoujin Cai, Min Yan, Tianyuan Chen, Tailiang Guo,