Chemical challenges during the synthesis of MWCNT‐based inorganic nanocomposite materials

Abstract

Phone/Fax: þ36 62 544 626Multiwalled carbon nanotubes (MWCNTs) were successfully covered with metal oxides -such as TiO 2 , ZnO, Al 2 O 3 , SnO 2 , and In 2 O 3 nanoparticles -with different preparation methods under solvent conditions. The applied synthesis techniques were impregnation, a hydrothermal process and a ball-milling method. As-prepared inorganic coverage layers were characterized by TEM, HRTEM, SEM, SEM-EDX, and X-ray diffraction techniques. Results revealed that the choice of synthesis technique affects the quality and the layer structure of the deposited inorganic particles on the surface of carbon nanotubes. These materials might be suitable for nanotechnology applications.

Electrodeposition of Inorganic Oxide/Nanocarbon Composites: Opportunities and Challenges

“…There are many reports on oxide/CNT nanocomposites, but few of these materials have been electrosynthesized. For example, ZnO has been coated on CNT surfaces by using a variety of methods, including hydrothermal deposition, ball milling, or pulsed laser deposition . These materials were reported to have enhanced photocatalytic activity relative to ZnO alone (i.e.…”

Tin Oxide/Carbon Nanotube Nanocomposite Sensors for Some Toxic VOCs Detection

“…The chose water as a solvent, instead of e.g. ethanol, in all presented here three material preparation methods was preferably for us in the view of expected improvement in gas sensing characteristics, taking in account the fact that cover the overwhelming parts of CNTs with SnO2 nanoparticles is ensured at that [46].…”

Preparing SnO2/MWCNT Nanocomposite Catalysts via High Energy Ball Milling

“…The possibility that this minor change is coming from the damage caused by ball milling can be excluded by our former results. 31 Since there is a broad peak in the region of 400 cm −1 and 800 cm −1 , identification of SnO 2 from Raman spectra is unfortunately doubtful. Characteristic peak of SnO 2 could be expected at around 630 cm −1 but it is probably covered by the sign of semi-crystalline SnO(OH) 2 .…”