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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

You touch a woman, you strike a rock
2004-11-02

Prof. Engela Pretorius van die Departement Sosiologie in die Fakulteit Geesteswetenskappe by die Universiteit van die Vrystaat het die kwessie omtrent feminisme aangespreek tydens haar intreerede met die onderwerp, You touch a woman, you strike a rock: Feminism(s) and emancipation in South Africa .

Prof. Pretorius het gesê: “Die geskiedenis van feminisme oor die algemeen kan in drie fases verdeel word, waarna verwys word as golwe. Eerste-golf-feminisme (19de eeu) het die fokus geplaas op die beskerming van vroueregte in die openbare terrein, spesifiek die reg om te stem, die reg tot onderrig en die reg om middelklas beroepe en professies te betreë.

Vroeë tweede-golf-feminisme word onthou vir hoe dit moederskap geteoretiseer het as synde ‘n onderdrukkende instelling. Slagspreuke van die 1970s was die persoonlike is polities en susterskap is magtig. Prof. Pretorius sê beide slagspreuke bevestig die idee dat vroue universeel onderdruk en uitgebuit word en slegs deur erkenning van dié situasie kan vroue die strukture wat hul onderdruk verander.

‘n Belangrike aspek van die derde golf van die feminisme-teorie is post-moderne feminisme wat diversiteit en verskille onderstreep. Die poging van hierdie feministe is afgestem op alle vorme van onderdrukking. Vroue van kleur het ook hul ontevredenheid uitgespreek gedurende die derde-golf-feminisme. Die feminisme van vroue van kleur word gekenmerk deur verskeie kwessies en talryke intellektuele standpuntinnames wat neerslaga vind in verskillende terme, soos Afrika feminisme of ‘womanism, sê prof. Pretorius.

Afrika-feminisme dui protes aan teen die wit/westerse geskiedenis en die wit/westerse dominansie binne feminisme. Afrika-vroue het besef dat hul onderdrukking verskillend is van dié van wit vroue en daarom is ‘n ander proses van bevryding nodig. Die Westerse feministiese praktyk om swart vroue by die bestaande feministiese ontologie te voeg, is nie voldoende nie omdat hul unieke ondervindings van slawerny, kolonialisme, onderdrukking deur mans en armoede nie uitgedruk word nie.

‘Womanism’ het tot stand gekom as gevolg van ‘n eksplisiete rassekritiek teen feminisme. Dit is ten gunste van die positiewe uitbeelding van swart mense. Dit word gekenmerk deur kulturele kontekstualisasie, die sentraliteit van die gesin en die belangrikheid daarvan om mans in te sluit.

Die geskiedenis van vroue in Suid-Afrika is verwant aan hul geskiedenis van onderdrukking as gevolg van patriargie. Vroue van verskillende rasse, kulture en klasse het patriargie op verskillende wyses in en variërende mate van erns ervaar. Onder voor-koloniale patriargie het vroue min sê gehad oor huwelikskeuses omdat mans dié besluite gedomineer het.

Die Nederlandse en Britse patriargale erfenis het neerslag gevind in die ideologie van die volksmoeder. Onderwyl dit veral manlike skrywers was wat die beeld van die vrou as versorger en tuisteskepper bevorder het, het vroue self ook hieraan ‘n aandeel gehad, sodat die volksmoeder volwaardig deel geword het van die Afrikaner nasionalistiese mitologie. Alhoewel middel- en werkersklas vroue met dié beeld geïdentifiseer het, het nie alle Afrikaanse vroue die ideologie aanvaar nie.

Onder die Victoriaanse erfenis was Britse vroue beperk to die private eerder as die openbare lewe. Die skeefgetrekte onderrigsisteem wat vroue in huishoudelike loopbane gekanaliseer het, die mag van mans oor hul vroue se eiendom en ‘n tekort aan toegang tot mag en geld het verseker dat vroue by die huis gebly het.

Wit Engelssprekende-vroue het die grootste geleentheid gehad om patriargie uit te daag vanweë hul toegang tot onderwys en die blootstelling aan liberale waardes, sê prof. Pretorius. Liberale vroue soos Helen Joseph en Helen Suzman het ‘n belangrike rol gespeel om in 1930 stemreg vir wit vroue in Suid-Afrika te verseker en het voortgegaan om ‘n rol te speel in die bevryding van swart vroue gedurende die vryheidstryd.

Die feminisme wat onder swart vroue ontwikkel het, was ‘n erkenning van die gemeenskaplike stryd met swart mans om die verwydering van die juk van eksterne onderdrukking en eksploitasie. Swart vroue in aktiewe en onafhanlike politiese rolle het tegelykertyd mans se aannames omtrent hul meerderwaardigheid asook die rassewette van die staat uitgedaag. Daarom kan ons sê dat die feminisme wat hier ontwikkel het, te voorskyn gekom het as gevolg van vroue se betrokkenheid by en toewyding tot nasionale bevryding, sê prof. Pretorius.

Institusionalisering is nie herlei tot magsvoordele nie, want gelykheid is nie in beleidsprogramme geïnkorporeer nie. Die hervestiging van sleutel aktiviste van die vrouebeweging in die regering het die stryd om genderbillikheid verander na ‘n projek wat deur die regering gelei word, sê prof. Pretorius. Ongelukkig word terreine van verandering buite die grense van die regering verwaarloos. Dit kan slegs aangespreek word deur ‘n aktiewe en feministiese stem in die burgerlike samelewing.

“Dit is my oortuiging dat formele instellings vir vroue binne die staat oor die lang termyn slegs effektief kan wees indien daar ‘n effektiewe feministiese vroue-beweging buite die staat in stand gehou word wat die grondslag waarop sosiale beleid gevorm word, kan uitdaag en bevraagteken. Daarom, A luta continua (die stryd duur voort),” sê prof. Pretorius.

Mediaverklaring
Uitgereik deur: Lacea Loader
Mediaverteenwoordiger
Tel: (051) 401-2584
Sel: 083 645 2454
E-pos: loaderl.stg@mail.uovs.ac.za
2 November 2004

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