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Physics student receives prestigious CV Raman International Fellowship

23 February 2024 | Story Leonie Bolleurs | Photo SUPPLIED

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

Important message to UFS students on NSFAS and financial aid in general

2013-02-01

31 January 2013

Dear Students

There remains some uncertainty as well as misinformation within the student body concerning NSFAS and financial aid in general. This communication is intended to provide the facts on the state of student funding at the University of the Free State (UFS). I hope you find this information helpful and that it would guide you in your decisions as you wait to hear from, or hopefully receive funding from NSFAS or any other source.

Every year the Department of Higher Education and Training (DHET) determines how much funding is available to fund students at all universities in South Africa; this is determined in part by the student numbers. Universities do not ask for, or determine the DHET allocation and are instructed by government that “NSFAS will ensure that the universities comply with the processes, procedures…for the allocated funds.”
On 14 December 2012 the UFS received notice from the DHET that our total allocation would be R108,331,215.66 and that this amount must be apportioned in the following categories:
General NSFAS Funding R85,174,275.07
Teacher Training R2,291,940.59
Disability Funding R1,265,000.00
Final-Year Programme R19,600,000.00
The UFS received 5 952 applications for NSFAS funding and with the available funding we can only finance up to 3 000 students on the Qwaqwa and Bloemfontein Campuses, provided that those students satisfy the stringent criteria, e.g. the so-called “national means test” determined for all universities in the country. If we funded more students that the available monies allow, the university would be held accountable by the NSFAS Board and the DHET and this would threaten future funding.
Students apply in the previous year and therefore late applications are less likely to receive funding.
Academic merit also counts, therefore students who fail one or more modules are less likely to receive new or ongoing support from NSFAS. The combination of academic standing and financial need are among the important criteria in decision-making on NSFAS funds.
The UFS is one of the few universities with a very efficient record in using every cent made available to support poor students; we are proud of this record. No money is sent back to NSFAS, except small amounts not claimed by students in the disability category. The university is not allowed to shift funds between categories as described in point #2 above.
Allocations are not based on campus, but need.
The UFS sets aside an additional R35,7 million (in 2013) from within its own budget as bursaries so that we can accommodate as many students as possible. We spend every cent of this funding on students.
The UFS also raises millions in bursaries from the private sector to support poor and promising students, though these funds are often linked to the industry granting the money, e.g. Investec for Accounting students and SASOL for Chemistry students. This recruitment of bursaries is a 24/7 commitment of the Marketing Office and the Faculties and Heads of Departments are also active in raising funds from government agencies, parastatals and the private sector for students in their units.
After almost all our 2013 funds were allocated in favour of students, we calculated a shortfall in the NSFAS allocation of approximately R51 million. We are in the process of making an urgent submission to NSFAS to consider this additional allocation, but we cannot guarantee that this plea can or will be met.

Finally, I want all our students to know that the University of the Free State works very hard to raise every cent we can to provide poor students with funding for their studies. Many of my colleagues, including support staff, who do not earn very much, use some of their meagre personal resources to help a student with money for registration or clothing or food. In fact, the No Student Hungry Campaign that raises more than R600,000 by UFS volunteers annually, is another mechanism for trying to assist students who might have money for studies, but not much else.

We do this because we care, and because this is what The Human Project at Kovsies is all about.

I therefore ask for your patience as we continue our labour of raising the funds that enable every deserving student to continue their studies at the University of the Free State.

Should you have any further questions about NSFAS, please leave an email inquiry on choanet@ufs.ac.za or mallettca@ufs.ac.za and we will endeavour to provide you with the information you require.

Sincerely Yours

Jonathan D Jansen
Vice-Chancellor and Rector
University of the Free State

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