Low-temperature CVD growth of carbon nanotubes for field emission application

High Field-Emission Stability of Offset-Thin-Film Transistor-Controlled Al-Doped Zinc Oxide Nanowires

“…Normally, the anode current of uncontrolled AZO NW FEAs increased markedly with anode voltage. Compared to the low-temperature CNTs (i.e., grown at 250 to 550 C), [17][18][19][20][21] the AZO NW FEAs hydrothermally grown at 85 C in this study demonstrate superior field emission characteristics (i.e., turn-on field of $2:17 V/m and threshold field of $3:43 V/m) than those (i.e., turn-on field of 2.4 to 3.85 V/m and threshold field of 4.3 to 6 V/m) of the reported CNT FEAs, which supports that AZO NW FEAs are good candidates for lowtemperature-fabricated FEDs. On the other hand, anode currents were controlled by the offset-TFTs and showed saturated behavior at high anode voltages.…”

Evaluating the efficacy of alumina/carbon nanotube hybrid adsorbents in removing Azo Reactive Red 198 and Blue 19 dyes from aqueous solutions

“…These types of dyes are colored compounds that have reactive groups which are able to form covalent bonds between dye and fiber (Celik et al, 2011;Ashrafi et al, 2013). It has been estimated that up to 50% of the reactive dyes used in industry, may be lost to the effluent and their concentration in the wastewater outlet of industries is about 10-200 mg l −1 (Chen et al, 2007;Aksakal and Ucun, 2010). Reactive dyes are hydrophilic and therefore have little tendency for adsorption on biomass in biological treatment methods.…”

Synthesis of multiwalled carbon nanotubes on Al2O3 supported Ni catalysts in a fluidized‐bed

“…Carbon nanotubes (CNTs) are allotropes of carbon with extraordinary electrical, mechanical and chemical properties, making them valuable in applications as diverse as advanced materials,1 field emission devices,2 biosensors,3 molecular electronic devices4 and conceivably many others. Of the three common techniques for CNT synthesis, laser ablation,5 arc discharge6 and chemical vapor deposition (CVD),7, 8 the CVD process shows most promise for economically viable and large‐scale synthesis.…”