کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1419767 986064 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ionic peapods from carbon nanotubes and phosphotungstic acid
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Ionic peapods from carbon nanotubes and phosphotungstic acid
چکیده انگلیسی

Using a mild wet-chemical route, cage-like phosphotungstic acid (HPW) molecules of 1.2 nm diameter were successfully filled into opened carbon nanotubes (CNTs) with cavity diameter of 2 nm. High resolution transmission electron microscope revealed that HPW molecules arrayed in a chain in the tube cavity, forming a new kind of peapod structure. In aqueous solution these unusual peapods showed higher ionic property than the opened nanotubes, with a ζ-potential of −47.5 ± 1.3 mV, and dissolved finely as a stable solution. Raman spectra confirmed the strong interaction between HPW molecules and CNT graphite wall. It could substantially tune the electronic properties of CNTs and thus promote their applications in novel electronic devices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 44, Issue 11, September 2006, Pages 2261–2264
نویسندگان
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