Conventional wet impregnation versus microwave-assisted synthesis of SnO2/CNT composites

Microwave assisted green synthesis and characterization of silver/montmorillonite heterostructures with improved antimicrobial properties

“…The rapid transfer of MW energy to thermal energy in polar solution and the penetration property of MW electromagnetic radiation through solution result in a uniform heating for the reaction solution, giving a size-controlled synthesis of nanoparticles, in a narrow range when compared to the conventional heating by thermal conduction and convection (Motshekga et al, 2011;Wada et al, 2001;Yin et al, 2004). The MW radiation heats up a material through its dielectric loss, which converts the radiation energy into thermal energy.…”

Field Emission Characteristics ofSnO2/CNTs Composites Prepared by Microwave-Assisted Wet Impregnation

“…The formation of a considerable amount of SnO 2 nanoparticles on the CNT surface within 5 min of reaction time may be due to the strong microwave adsorption of CNTs [23]. The structural characterization results for the samples were published elsewhere [21].…”

“…The preparation and characterization procedures for the SnO 2 /CNT composites are reported elsewhere [21]. The composites prepared by different procedures are denoted by SnO 2 /CNTs-WI (conventional) and SnO 2 /CNTs-MW (microwave).…”

Room temperature hydrogen gas sensing properties of Pt sputtered F-MWCNTs/SnO2 network

“…The crystallite size of SnO 2 nanoparticles coated on the surface of nanotubes was 7 nm calculated by Debye Scherer's formula using 2Â = 33.8 • and 51.8 • angle. The peak at 2Â = 26.6 • is shifted in F-MWCNTs/SnO 2 /Pt as compared to F-MWCNTs (2Â = 25 • ) due to interaction of SnO 2 and Pt nanoparticles with CNTs [29]. Furthermore, the peaks at 39.8 • , 67.3 • and 81.2 • correspond to (1 1 1), (2 2 0) and (3 1 1) planes of the cubic structure of Pt (JCPDS card no.…”