Author:Modibedi, Remegia M; Masombuka, T; Mohlala, M; Mathe, Mahlanyane KDate:Nov 2007The development of high performance electrode materials has been the key research objective in the field of direct alcohol fuel cells (DAFC) [1, 2, and 3]. A promising way to attain higher catalytic performance is to add a third element to ...Read more
Author:Roro, Kittessa T; Tile, N; Forbes, ADate:Apr 2012Nanocomposite materials have wide range of applications in solar energy conversion. In this work, C/NiO nanocomposite solar energy absorbing surfaces were prepared using sol-gel synthesis and deposited on aluminium substrates using a spin ...Read more
Author:Fosso-Kankeu, E; Mittal, Hemant; Waanders, F; Ntwampe, IO; Ray, Suprakas SDate:Feb 2016This research paper reports the removal of heavy metal ions from mine effluents using the gum karaya (GK)-grafted poly(acrylamide-co-acrylic acid) incorporated iron oxide magnetic nanoparticles (Fe3O4 MNPs) hydrogel nanocomposite [i.e., ...Read more
Author:Masombuka, T; Mkwizu, TS; Modibedi, Remegia M; Mathe, Mahlanyane KDate:Nov 2007Low temperature fuel cells with methanol or ethanol as the fuel represent an environmentally friendly technology and are attracting considerable interest as a means of producing electricity. High surface area carbon supported Pt is recognised ...Read more
Author:Zhou, S; Liu, G; Luo, HongzeDate:Sep 2021The lithium-rich materials xLi2MnO3·(1-x)LiMn1/3Ni1/3Co1/3O2, with uniform spherical shape of 1 µm are successfully prepared via a hydrothermal method combined with calcination process. The content of Li2MnO3 is tuned by adjusting the content ...Read more
Author:Latha, S; Selvamani, P; Suganya, G; Thimiri Govindaraj, Deepak B; Pal, TKDate:Jun 2021Magnetic microspheres incorporated with pantoprazole sodium—a proton pump inhibitor—were formulated by using two different polymers such as ethyl cellulose and Eudragit RS-100. The magnetic microspheres were prepared by emulsion solvent ...Read more
Author:Jayaramudu, J; Reddy, GSM; Varaprasada, K; Sadikua, ER; Ray, SS; Rajulu, AVDate:Apr 2013The development of commercially viable "green products", based on natural resources for the matrices and reinforcements, in a wide range of applications, is on the rise. The present paper focuses on Sterculia urens short fiber reinforced pure ...Read more
Author:Barnard, A; Chetty, A; Klumperman, BDate:Oct 2012The intelligent management of South Africa’s scarce water resources is a key focus area for the CSIR. This work aims to develop a rapid method for the detection of microbial
contamination in water to assist authorities in the prevention of ...Read more
Author:Streicher, SF; Sander, WJDate:1971Part of this report, compiled by S.F Striecher, deals with the preparation of the samples, while Part B, written by W.J. Sander , comprises the results of the carbonisation tests and coke testing.Read more
Author:Strydom, ESP; Wehmeyer, ASDate:Dec 1969Freeze-dried samples are used for analysis and the methods of preparation of samples for freeze-drying are discussed. Freeze-drying has obvious advantages but has also a few minor disadvantages. Difficulties encountered in the determination ...Read more
Author:Das, J; Pradhan, SK; Samantray, S; Sahu, DR; Mishra, DK; Srinivasu, VV; Roul, BKDate:Jan 2009In order to study the size dependent DMS (Diluted Magnetic Semiconductor) behavior of Mn doped ZnO, the authors have systematically prepared a series of nanosized green powder based on Mn doped ZnO (Zn 1-x Mn x O, where x=0.02 - 0.1) materials ...Read more
Author:Fuel Research InstituteDate:1951This report details how the absorption pipettes and combustion tubes are mounted on the apparatus in the sequence, starting from the burette.Read more
Author:Labuschagne, Philip W; Adami, R; Liparoti, S; Naidoo, Saloshnee; Swai, H; Reverchon, EDate:Nov 2014In this work supercritical assisted atomization (SAA) process was used for the co-precipitation of poly(d,l-lactide) (PDLLA) and rifampicin (RIF) as nanoparticles for sustained release applications. The effect of the variation of PDLLA/RIF ...Read more
Author:Morris, WM; Simpson, BRSDate:Feb 2004Radioactive water standards prepared in Marinelli beakers can pose a problem due to potential leakage that can both compromise the standard and present a safety hazard. These difficulties can be circumvented by solidifying the standard such ...Read more
Author:Archer, M; De Vos, BJ; Visser, MSDate:Apr 2007Internationally, certified ethanol reference materials are required to calibrate breathalysers and blood-alcohol measurement instruments. The CSIR National Metrology Laboratory of South Africa provides certified aqueous ethanol solutions with ...Read more
Author:Modibedi, Remegia M; Mehlo, T; Ozoemena, KI; Mathe, Mahlanyane KDate:Oct 2015This work describes the use of Pd nanocatalyst on Vulcan XC-72 (at a very low loading, 8 wt % Pd) in passive alkaline direct ethanol fuel cell (ADEFC). The average Pd particle size obtained with TEM was 3.5 ± 0.5 nm. The XRD results of the ...Read more