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Browsing by Author "Cummings, FR"

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A highly responsive NH3 sensor based on Pd-loaded ZnO nanoparticles prepared via a chemical precipitation approach

Author: Mhlongo, Gugu H ; Motaung, David E ; Cummings, FR ; Swart, HC ; Ray, Suprakas S Date: Jul 2019 The gas-detecting ability of nanostructured ZnO has led to significant attention being paid to the development of a unique and effective approach to its synthesis. However, its poor sensitivity, cross-sensitivity to humidity, long response/recovery ... Read more
Hot-wire chemical vapour deposition of carbon nanotubes

Author: Cummings, FR ; Arendse, CJ ; Malgas, GR ; Scriba, Manfred R ; Knoesen, D ; Theron, CC Date: Jul 2006 Owing entirely to their structure, carbon nanotubes (CNTs) possess some of the most remarkable chemical and physical properties. More specifically, they exhibit exceptional strength and toughness, chemical inertness, magnetism, and electrical ... Read more
Interfacial analysis and properties of regioregular Poly (3-Hexyl thiophene) spin-coated on an Indium tin oxide coated glass substrate

Author: Malgas, GF ; Arendse, CJ ; Mavundla, S ; Cummings, FR Date: Aug 2008 Interfacial analysis of the rrP3HT samples spincoated on a glass substrate was studied in detail using transmission electron microscopy (TEM) and SEM measurements. Very homogeneous and smooth polymer (P3HT and PEDOT:PSS) layers are observed ... Read more
Mechanistic formation of TiO2 nanotubes via anodisation – effect of operating voltage and time

Author: Cummings, FR ; Le Roux, Lukas J ; Hietkamp, S Date: Jul 2008 Titanium dioxide (TiO) nanotubes hold great potential for application in dye-sensitised solar cells for they provide a one-dimensional transport route for generated charge carriers. An investigation is launched into the formation of these ... Read more
Microstructure and phase transformation on milled and unmilled Ti induced by water quenching

Author: Bolokang, AS ; Phasha, MJ ; Motaung, DE ; Cummings, FR ; Muller, TFG ; Arendse, CJ Date: Oct 2014 Water quenching of unmilled Ti compact has yielded martensitic-type laths and fishbone-type twinned microstructures, with a', a'' and FCC phases induced. Upon quenching 30 h milled and (0+30) h mixed powders at 1200 °C, a', FCC, tetragonal ... Read more
Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes

Author: Adeloye, AO ; Ajibade, PA ; Cummings, FR ; Le Roux, Lukas J ; Mamphweli, SN ; Meyer, EL Date: Jan 2013 Four new amphiphilic ligands: 4-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub1), 4-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub2), 5-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L(sub3) and 5-(9-anthracenyl-10- ... Read more
Ultra-high sensitive and selective H2gas sensor manifested byinterface of n–n heterostructure of CeO2-SnO2nanoparticles

Author: Motaung, David E ; Mhlongo, Gugu H ; Makgwane, Peter R ; Dhonge, BP ; Cummings, FR ; Swart, HC ; Ray, Suprakas S Date: Jun 2018 Detection of toxic and explosive gases in a selective manner and with higher sensitivity in industries and homes remains very challenging. Therefore, herein, we report on the ultra-high sensitive and selective hydrogen gas sensing using ... Read more

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Browsing by Author "Cummings, FR"

Browsing by Author "Cummings, FR"

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