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23 February 2024 | Story Leonie Bolleurs | Photo SUPPLIED
Tebogo Motsei
Tebogo Motsei, a PhD student in Physics at the UFS, has been awarded the prestigious CV Raman International Fellowship for African Researchers.

Imagine a supercapacitor/battery made right here in South Africa that could change the way we store energy for the better. A product that can store energy in real time, thus solving energy problems as they happen, which makes a huge difference especially during power outages. A product that is not just good for the environment – transitioning away from lithium-ion batteries – but that can also create jobs and boost the local economy.

What we are talking about is a type of technology known as a sodium-ion supercapacitor/battery, which is the focus of Tebogo Motsei’s research. This technology serves as a power source for lighting, power plants, cars, and phones. Motsei, a PhD student in the Department of Physics on the Qwaqwa Campus of the University of the Free State (UFS), explains that – unlike lithium batteries, which have undergone extensive research and are expensive to produce – they are conducting experimental work and characterisations to determine if sodium-ion supercapacitor/batteries can perform as well or even better, using more affordable and eco-friendly materials.

“Our results, inspired by the urgent need for improved energy storage solutions in South Africa amid its energy challenges, have been very promising. We have successfully developed a sodium-ion supercapacitor/battery that stores as much energy as a lithium-ion battery. Moreover, it was crafted from recycled materials, making it a more cost-effective and environmentally friendly option,” states Motsei, adding that their battery is unique, as no one else in the world has created anything quite like it, despite numerous attempts.

She is also pleased with this supercapacitor/battery’s ability to repair itself. Motsei explains, “Imagine if your toy could fix itself whenever it got broken – that's kind of what our sodium-ion supercapacitor/battery does!”

Motsei is part of a group of scientists in the Department of Physics at the UFS who are working on this research and who have published a scientific article on their work, titled Composite super-capacitor/Na-ion battery with self-healing Fe–Cr alloy electrodes. 

“We're proud of what we have accomplished,” she remarks.

Fellowship: a dream come true

Being part of this impactful research contributed to Motsei receiving the prestigious CV Raman International Fellowship for African Researchers (2023). The fellowship is for African researchers engaged in research at an African institution, providing opportunities for research collaboration in India. Motsei will be the only candidate from South Africa.

This award is merit-based. Motsei attributes her selection to factors such as her strong academic record, research accomplishments, and innovative approach to solving complex problems. She also believes her experience in research, collaboration, and publication reflects her potential to make meaningful contributions to the field during the fellowship period. 

Another key factor contributing to her selection for this fellowship is her skill in fabricating actual devices/prototypes. “The hands-on nature of this research, allowing me to create devices from scratch, has always been my passion. Making my first device – the ‘Magnetron Sputtering Unit’ – during my master’s studies, was a turning point. It made me realise that I had made the best decision ever by choosing this research field. I'm truly passionate about my work,” says Motsei. 

For her PhD studies, she is supervised by Prof Richard Ocaya, Associate Professor 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.

Motsei says receiving this fellowship is a dream come true and a profound, life-changing moment for her. “I feel deeply honoured to be concluding this programme at the CSIR-Electrochemical Research Institute, the host institution in India, under the guidance of Prof Arul Manuel Stephan, whose invaluable assistance has been instrumental in my preparations.” Motsei also expressed her gratitude towards everyone who has supported her during this process, including Sudhir Kumar from the Indian Embassy in Pretoria.

“I am excited about how I can use this opportunity to make a difference. Whether it’s tackling significant global energy issues or finding new ways to solve everyday problems, I know this fellowship will give me the tools and support needed to make a real impact. Overall, I see this fellowship as a stepping stone to exciting new opportunities and adventures in the world of research,” she comments.

Making a meaningful impact

Motsei will be leaving for India on 23 February for a period of six months. She is excited about this new chapter in her research journey. “This fellowship will enhance my abilities as a scientist and leader in physics, providing me with essential skills, connections, and experience to make a meaningful impact in science and energy. I'm genuinely happy about this opportunity, which I thank God for.”

  • Sir Chandrasekhara Venkata Raman, after whom the fellowship is named, was a renowned Indian physicist who made great contributions to physics, winning many prizes and awards, including the 1930 Nobel Prize in Physics. He was known for his work in the field of light scattering and was the first Asian and non-European to receive a Nobel prize in any branch of science. 

News Archive

Unique programme for next generation of professors launched
2010-11-19

Some of the scholars taking part in the Vice-Chancellor's Prestige Young Scholars Programme are, from the left: Dr Andréhette Verster, Ms Liezel Kotzé and Dr Nthabeleng Rammile.
Photo: Stephen Collett

The University of the Free State (UFS) has launched a programme that will provide an accelerated pathway to 25 young scholars with recent PhDs and teach them how to become professors through intensive local and international mentorship, research support and academic training.

The Vice-Chancellor’s Prestige Programme for Young Scholars focuses on the next generation of top researchers in South Africa who will fill the gap left by retiring academics. It will also add significantly to the diversity of the professoriate at the UFS.

No other university in the country has a programme of such scale and intensity for building excellence and diversity through young scholars.

“The programme is highly selective and limited to the most promising young scholars at the university. It will also contribute towards establishing an international reputation for the university and positioning the UFS as one of the best research institutions in the country,” said Prof. Neil Roos, Director of the Postgraduate School at the UFS. He will manage the programme together with Prof. Jackie du Toit, also from the university.

Running for the next three years, the programme will put the 25 scholars through an intensive programme of academic and scholarship support which includes advanced theoretical and methodological training and exposure to leading international scholars in their fields. They will also be exposed to intensive reading and writing programmes, high-level seminar and conference participation and presentation, accelerated publication schedules and personal mentoring and advising plans.

“Scholarship will only grow if there is a critical mass – and this is what we want to achieve at the UFS. We want to create a pool of young scholars, develop and connect them with international scholars and place them at top universities in the world where they can be mentored by the best in their respective fields,” said Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS at the launch of the programme.

According to Prof. Jansen, the UFS aims to draw public intellectuals and A-rated scientists to the campus and make academic work attractive to academics at the university and countrywide.

The group of scholars has a good academic record, with 69% of them completing their PhDs within the last five years. The group is well represented in terms of race and gender; the majority are in the 26 to 30-year age group and specialisations include the social sciences (including education, the humanities and arts) as well as the natural sciences.

“Scholarship develops over time. We are proud and extremely honoured to be selected for this prestigious programme. With this scholarship we acknowledge the responsibility of building the UFS and of extending our knowledge across disciplines. We will establish a scholarly advancement for our university that will enable it to compete with the best in the world,” said Dr Nalize Marais, one of the prestige scholars.

The launch was also attended by members of the university’s International Advisory Council (IAC). This council, which visited the university the past week to advise the leadership on its future positioning strategies, especially in relation to its international aspiration to become a place of scholarship and service among the leading universities in the world, congratulated the UFS on this groundbreaking programme.

“You are lucky to have a leadership that dares to dream and that can act the dream. You are fortunate that your leadership wants to take this university forward and explore new horizons,” said Prof. Aki Saweyrr, former Secretary-General of the Association of African Universities in Ghana and member of the IAC.

Ending the evening’s programme was Dr Gansen Pillay, Vice-President of the National Research Foundation. Prof. Gansen also congratulated the UFS on its visionary and inspirational leadership. “It is a privilege to make a life-changing contribution to research in the world. Universities must take ownership of their own development – which is exactly what the UFS is doing. And, although this is a truly South African programme, it could have an impact on the rest of the world,” he said.
 

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