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16 April 2025 | Story Precious Shamase | Photo Supplied
Qwaqwa NAS Achievements
From left to right Prof Richard Ocaya is an Associate Professor in the Department of Physics, Dr Tebogo Motsei and Dr Kamohelo Tshabalala

The Faculty of Natural and Agricultural Sciences (NAS) at the University of the Free State (UFS) Qwaqwa Campus is celebrating a year of remarkable achievements, showcasing the dedication and brilliance of its students and faculty. The 2024 academic year has been marked by outstanding academic performance, prestigious awards, and groundbreaking research, solidifying the faculty's commitment to excellence.


Academic excellence shines bright

The faculty's commitment to rigorous academic standards has yielded impressive results. This year, four doctoral candidates successfully obtained their PhDs, contributing valuable research to their respective fields. Furthermore, the dedication of the honours and master’s students was evident in their exceptional performance. Out of 25 honours students, an impressive 11 achieved distinctions, demonstrating their mastery of their subjects. Similarly, 5 out of 10 master’s students passed with distinctions, a testament to their advanced research capabilities and academic prowess.


Dr Tebogo Motsei: A beacon of innovation and excellence

Among the faculty's many successes, the achievement of Dr Tebogo Motsei stands out as a testament to the calibre of talent being nurtured on the UFS Qwaqwa Campus. Dr Motsei, who recently graduated from the campus, was awarded the prestigious CV Raman Scholarship by the Government of the Republic of India – a recognition bestowed upon only the most promising postgraduate students.

This highly competitive scholarship, named after the Nobel prize-winning physicist Chandrasekhara Venkata Raman, provided recipients with a six-month research opportunity in India. Dr Motsei conducted her research at the esteemed Central Electrochemical Research Institute (CECRI), under the guidance of Prof Arul Manuel Stephan and Prof Sabu Thomas, Vice-Chancellor of the Mahatma Gandhi University. CECRI – one of the most difficult Indian institutes to get admitted into – is part of the Council for Scientific and Industrial Research (CSIR).

Dr Motsei’s research focused on sodium-ion batteries and supercapacitors with lithium-sulphur integration, resulting in significant advancements in energy storage devices. Her innovative work has the potential to revolutionise the field, contributing to more efficient and sustainable energy solutions.   

Adding to her achievements, Dr Motsei also established Lesedi Innovations Pty, a company dedicated to the manufacturing of button batteries and cells of the CR2032 and 18650 form factors. This entrepreneurial endeavour highlights her commitment to translating research into practical applications that benefit society.

For her PhD studies, she was supervised by Prof Richard Ocaya in the Department of Physics, and co-supervised by Dr Kamohelo Tshabalala, Senior Lecturer in the Department of Physics. Prof Ocaya, proud of Motsei’s achievements, believes that this fellowship not only serves as a great motivation for students – especially on the Qwaqwa Campus – but also highlights the global relevance of the UFS, particularly the Department of Physics.


A message of pride and congratulations

Prof Aliza le Roux, Assistant Dean of the Faculty of Natural and Agricultural Sciences, expressed her immense pride in the students and staff. "I would like to congratulate the NAS students and staff members on this fantastic achievement – it’s a sign of people going out of their way to do their best and make their research work despite any obstacles thrown in their way. These distinctions show that we have smart, dedicated, creative people in NAS, and I’m very proud of all of them. For students, this means great opportunities ahead, and for staff, it is a sure sign that they did something right in their mentorship and teaching. Thank you to this wonderful team," concluded Prof Le Roux.

The UFS Qwaqwa Campus congratulates all the graduates, distinguished students, and dedicated staff of the Faculty of Natural and Agricultural Sciences. Their accomplishments are a testament to the university's commitment to fostering academic excellence and innovation. The faculty continues to fly the UFS flag high, inspiring future generations of scientists and researchers.

News Archive

Fracking in the Karoo has advantages and disadvantages
2012-05-25

 

Dr Danie Vermeulen
Photo: Leatitia Pienaar
25 May 2012

Fracking for shale gas in the Karoo was laid bare during a public lecture by Dr Danie Vermeulen, Director of the Institute for Groundwater Studies (IGS). He shared facts, figures and research with his audience. No “yes” or “no” vote was cast. The audience was left to decide for itself.

The exploitation of shale gas in the pristine Karoo has probably been one of the most debated issues in South Africa since 2011.
 
Dr Vermeulen’s lecture, “The shale gas story in the Karoo: both sides of the coin”, was the first in a series presented by the Faculty of Natural and Agricultural Science under the theme “Sustainability”. Dr Vermeulen is a trained geo-hydrologist and geologist. He has been involved in fracking in South Africa since the debate started. He went on a study tour to the USA in 2011 to learn more about fracking and he visited the USA to further his investigation in May 2012.
 
Some of the information he shared, includes:

- It is estimated that South Africa has the fifth-largest shale-gas reserves in the world, following on China, the USA, Argentina and Mexico.
- Flow-back water is stored in sealed tanks and not in flow-back dams.
- Fracturing will not contaminate the water in an area, as the drilling of the wells will go far deeper than the groundwater aquifers. Every well has four steel casings – one within the other – with the gaps between them sealed with cement.
- More than a million hydraulic fracturing simulations took place in the USA without compromising fresh groundwater. The surface activities can cause problems because that is where man-made and managerial operations could cause pollution.
- Water use for shale-gas exploration is lower than for other kinds of energy, but the fact that the Karoo is an arid region makes the use of groundwater a sensitive issue. Dr Vermeulen highlighted this aspect as his major concern regarding shale-gas exploration.
- The cost to develop is a quarter of the cost for an oil well in the Gulf of Mexico.
- Dolerite intrusions in the Karoo are an unresearched concern. Dolerite is unique to the South African situation. Dolerite intrusion temperatures exceed 900 °C.

He also addressed the shale-gas footprint, well decommissioning and site reclamation, radio activity in the shale and the low possibility of seismic events.
 
Dr Vermeulen said South Africa is a net importer of energy. About 90% of its power supply is coal-based. For continued economic growth, South Africa needs a stable energy supply. It is also forecast that energy demand in South Africa is growing faster than the average global demand.
 
Unknowns to be addressed in research and exploration are the gas reserves and gas needs of South Africa. Do we have enough water? What will be the visual and social impact? Who must do the exploration?
 
“Only exploration will give us these answers,” Dr Vermeulen said.

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