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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

Service learning teaching strategy essential for the infusion of graduate attributes
2017-01-02

Description: Dr Pulane Pitso Tags: Dr Pulane Pitso 

Dr Pulane Pitso, Director: Institutional Performance
Monitoring within Performance Monitoring and Evaluation
Branch in the Department of the Premier, Free State
Provincial Government (FSPG).
Photo: Rulanzen Martin

“Public service delivery is not only about ‘government’s sector end products’, but is also fundamentally related to the ways in which the citizens can be best served at the point of client interface, as the primary beneficiaries.”

It is against this backdrop that Dr Pulane Pitso’s study explored the role of Higher Education Institutions (HEIs) in infusing the curriculum with graduate attributes for improved service delivery. The study is entitled: Community service learning as a transformative tool for infusing the university curriculum with graduate attributes for improved service delivery.
 
Citizens the central focus in public-service delivery
Although with the advent of democracy, the South African public service introduced the Batho Pele “people first” initiative which is one of the key transformation-oriented initiatives to ensure that citizens are the central focus in public service  delivery. An extant literature indicates that more work by the government still needs to be done in terms of the institutionalisation and implementation thereof.

Notwithstanding that public service is primarily responsible for addressing challenges related to poor service delivery, Dr Pitso moved from a premise that a multifaceted and collaborative approach, underpinned by a concerted effort by all relevant sectors, is more likely to contribute significantly towards improving service delivery. Specific focus was given to sectors primarily mandated to lay foundations through training and development such as HEIs, since the nature and quality of public service largely depends on the nature, quality and relevance of the system of education.

CSL a transformative teaching strategy
The basis for her thesis, emanated from the contention that public service delivery is a dynamic process which cultivates into a citizen-government relationship.

“It is this relationship that makes the implementation of the Batho Pele initiative crucial in ensuring that the social fabric and moral character of government is not compromised, thus the sustainability and facilitation of the emerged relationship,” Dr Pitso says.

The study focuses on the notion of community service learning (CSL) as an increasingly recognised transformative teaching strategy. It transcends lecture halls and utilises communities as educational spaces to provide practical exposure to real-life experiences to students on both learning and serving the communities.

Instilling graduate attributes in students
Dr Pitso’s thesis, which was predominately qualitative in nature, comprised two main stages. The first stage of the study focused on determining the current state of the public service in terms of the implementation of the Batho Pele principles. Whereas with the second stage, the focus was on determining the extent to which the graduate attributes are instilled in students by means of an exit-level CSL module at the UFS.

Dr Pitso’s thesis, which was awarded to her on 30 June 2016, is the product of five years of hard work, commitment and perseverance. She said it would not have been realised if it had not been for the leadership and mentorship of her promoter, Prof Mabel Erasmus, and co-promoter, Prof Victor Teise.

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