Conveners
Parallel-Chemistry and Materials
- Mashikoane Mogodi (University of Cape Town)
Parallel-Chemistry and Materials
- Bjorn von der Heyden (Stellenbosch University)
Parallel-Chemistry and Materials
- Delia Haynes (Stellenbosch University)
Parallel-Chemistry and Materials
- Tshepo Ntsoane (Necsa)
Dr
Mmantsae Diale
(University of Pretoria)
13/11/2019, 09:00
Materials
Oral
Semiconductors have been used in solar water splitting since the initial report on hydrogen production using TiO2. Thus far, materials explored to achieve theoretical solar to hydrogen efficiency (STH), included cadmium selenide (CdSe), zinc oxide (ZnO), copper(I)oxide (Cu2O), tungsten trioxide (WO3) and hematite (α-Fe2O3). All these failed due to their band edge alignments that do not...
Mr
Bjorn von der Heyden
(Stellenbosch University)
13/11/2019, 09:00
Materials
Oral
The world's future supply of crucial metals hinges on sound scientific research and geological discovery. To this end, researchers and industry experts apply a range of traditional techniques such as microscopy, whole-rock geochemistry, and field mapping (among others). However, the world's easily-discovered resources have been exhausted and new mineral discoveries are becoming more difficult...
Adam Shnier
13/11/2019, 09:25
Prof.
Giovanni Hearne
(University of Johannesburg)
13/11/2019, 09:30
Materials
Oral
The main consideration in this presentation is the interplay amongst magnetic-electronic, structural and charge-gap responses in strongly correlated 3d electron systems (transition metal oxides) evolved to very high static densities. Tuning through the large, ~eV, energy scales necessitate employing diamond anvil cells for requisite static pressures to the vicinity of ~100 GPa.
...
Mr
Sikhumbuzo Masina
(Molecular Science Institute, School of Chemistry, University of the Witwatersrand, private bag X3, Johannesburg, 2050, South Africa)
13/11/2019, 09:45
Materials
Oral
Solid oxide fuel cells (SOFCs) are electrochemical devices that convert chemical energy directly to electrical energy with reduced CO2, SO2 and NOx emissions [1]. They are highly efficient and when operated in combined heat and power mode they can reach efficiencies above 80% [2]. These devices have been known since Bauer and Preis reported their first use to produce electricity in 1937 [3]....
Dr
Ayodele Temidayo Odularu
(University of Fort Hare)
13/11/2019, 10:05
BioScience
Oral
Abstract
Relevance of Synchrotron Radiation in Inorganic Medicinal Chemistry
ODULARU, Ayodele Temidayo1
Department of Chemistry, University of Fort Hare, Alice 5700, South Africa.
Corresponding Author: 201106223@ufh.ac.za/ayodeleodularu@gmail.com
This study entails how three synchrotron radiation spectroscopic techniques (infrared microspectroscopy, microphobe X-ray fluorescence...
Dr
Marcus Newton
(University of Southampton)
13/11/2019, 11:00
Dr
Kudakwashe Jakata
(University of the Witwatersrand)
13/11/2019, 11:00
Kiefer Mattias
13/11/2019, 11:25
Dr
Frikkie De Beer
(Necsa)
13/11/2019, 11:25
Paleo
Oral
Necsa is privileged and in an unique situation within the South African context to host both neutron and X-ray radiography and tomography facilities on its premises at Pelindaba, 35 km West of Pretoria.
True to the mission of Necsa to engage with stakeholders in the area of radiation sciences, international and national researchers and post graduate students are actively utilizing the...
Prof.
Delia Haynes
(Stellenbosch University)
13/11/2019, 11:50
Materials
Oral
The 1,2,3,5-dithiadiazolyl radicals (DTDAs), R-CNSSN•, are of considerable interest due to their potential as magnetic or conducting materials. However, DTDAs tend to dimerise in the solid state via an interaction known as pancake bonding.[1] Pancake bonding between DTDAs results in spin pairing, rendering the resulting materials diamagnetic. Overcoming this dimerization interaction has been...
Dr
Dean Barrett
(CNPEM/Wits)
13/11/2019, 11:50
Materials
Oral
Sirius is a fourth-generation synchrotron light source built at the CNPEM and is forecast to begin operations in 2020. Brazil is transitioning from a second-generation synchrotron source (UVX) to a leading position in the design and operation of the brightest 4th-generation machine in its energy class. This multidisciplinary research infrastructure will bring an advanced facility to the...
Dr
Deon Marais
(Necsa SOC Limited)
13/11/2019, 12:15
Materials
Oral
Complimentary to using synchrotron light, neutrons as well as laboratory X-rays play invaluable instrumental roles in the study of materials and their characteristics. South Africa, through The South African Nuclear Energy Corporation (Necsa) SOC Limited, offers both neutron and X-ray diffraction capabilities to the scientific and industrial communities. Necsa's X-ray diffraction laboratory...
Mr
Maxwell Vhareta
(DST/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand)
13/11/2019, 12:15
Materials
Oral
X-ray diffraction and Raman spectroscopy techniques were used to investigate residual stresses in polycrystalline diamond disc samples sintered using the high temperature, high pressure method in the presence of a cobalt solvent/catalyst. The metallic phase primarily aids the formation of diamond to diamond bonds during sintering. During harsh rock drilling applications at elevated...
