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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

Two scientists part of team that discovers the source of the highest energy cosmic rays at the centre of the Milky Way
2016-03-22

Description: Giant molecular clouds  Tags: Giant molecular clouds

Artist's impression of the giant molecular clouds surrounding the Galactic Centre, bombarded by very high energy protons accelerated in the vicinity of the central black hole and subsequently shining in gamma rays.
Artist's impression: © Dr Mark A. Garlick/ H.E.S.S. Collaboration

Spotlight photo:
Dr Brian van Soelen and Prof Pieter Meintjes of the UFS Department of Physics.
Photo: Charl Devenish

H.E.S.S. (High Energy Stereoscopic System) scientists publically revealed their latest galactic discovery in the international science journal, Nature, on 16 March 2016. These scientists were able to pinpoint the most powerful source of cosmic radiation – which, up to now, remained a mystery.

Part of this team of scientists are Prof Pieter Meintjes and Dr Brian van Soelen, both in the University of the Free State (UFS) Department of Physics. Dr Van Soelen explains that they have discovered a proton PeVatron – a source that can accelerate protons up to energies of ~1 PeV (10^15 eV) – at the centre of the Milky Way. The supermassive black hole called Sagittarius A has been identified as the most plausible source of this unprecedented acceleration of protons.

The protons are accelerated to Very High Energy (VHE) gamma rays. The energy of these protons are 100 times larger than those achieved by the Large Hadron Collider at CERN (the European Organization for Nuclear Research).

According to Dr Van Soelen, the fact that this research has been published in Nature demonstrates the importance and pioneering nature of the research conducted by H.E.S.S. The H.E.S.S. observatory – operational in Namibia – is a collaboration between 42 scientific institutions in 12 countries.

In 2006, H.E.S.S. was awarded the Descartes Prize of the European Commission – the highest recognition for collaborative research – and in 2010 the prestigious Rossi Prize of the American Astronomical Society. The extent of the observatory’s significance places it among the ranks of the Hubble Space Telescope and the telescopes of the European Southern Observatory in Chile.

“The next generation VHE gamma-ray telescope,” Dr Van Soelen says, “will be the Cherenkov Telescope Array (CTA), which is currently in the design and development stage.” Both Dr Van Soelen and Prof Meintjes are part of this project as well.

H.E.S.S. has issued a complete statement about the paper published in Nature.

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