Decoration of Carbon Nanotubes with CoO and Co Nanoparticles

المؤلفون المشاركون

Niarchos, D.
Hariharan, S.
Boukos, N.
Panagiotopoulos, I.
Pal, S.
Tzitzios, V.
Tsitrouli, D.
Fardis, M.
Belesi, M.
Papavassiliou, G.

المصدر

Journal of Nanomaterials

العدد

المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-9، 9ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2011-04-04

دولة النشر

مصر

عدد الصفحات

9

التخصصات الرئيسية

العلوم الهندسية و تكنولوجيا المعلومات
الكيمياء
هندسة مدنية

الملخص EN

Multiwall carbon nanotubes (MWNTs) decorated with CoO nanocrystals were synthesized by in-situ thermal decomposition of Co(acac)2 in oleyl amine under reflux conditions open in the air.

The CoO/MWNTs composite material can be easily converted to metallic Co/MWNTs through annealing under reducing atmosphere (4% H2) at 500°C without any significant sintering effect.

The composite materials characterized by X-ray diffraction, transmission electron microscopy, and Nuclear Magnetic Resonance (NMR) spectroscopy.

The structural and morphological characterization shows that the CoO has cubic face (fcc) and the particles deposited uniformly on the external surface of the carbon nanotubes.

In the annealed materials, the NMR shows that the fcc and hcp metallic Co phases coexist with a significant percentage of stacking faults.

The magnetic measurements indicated that the CoO/MWNTs composite is largely composed of CoO nanoparticles with uncompensated surface spins.

The fluctuations of spins persist in partially reduced CoO grains as shown by nuclear spin-lattice relaxation measurements.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Belesi, M.& Panagiotopoulos, I.& Pal, S.& Hariharan, S.& Tsitrouli, D.& Papavassiliou, G.…[et al.]. 2011. Decoration of Carbon Nanotubes with CoO and Co Nanoparticles. Journal of Nanomaterials،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-463269

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Belesi, M.…[et al.]. Decoration of Carbon Nanotubes with CoO and Co Nanoparticles. Journal of Nanomaterials No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-463269

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Belesi, M.& Panagiotopoulos, I.& Pal, S.& Hariharan, S.& Tsitrouli, D.& Papavassiliou, G.…[et al.]. Decoration of Carbon Nanotubes with CoO and Co Nanoparticles. Journal of Nanomaterials. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-463269

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-463269