Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
31 October 2021 | Story Prof Francis Petersen

The University of the Free State (UFS) calls on all higher education institutions, business, the private and public sector, and the South African community to confirm their commitment towards climate change and to contribute to climate change interventions.

“The UFS is committed to contributing meaningfully through research, innovation, policy advice, activism, and the operational management of the university to a fairer, cleaner, and healthier world, and urges world leaders to make bold decisions on how to reduce greenhouse gas emissions at the upcoming Climate Change Conference of the Parties (COP26) meeting in Glasgow,” says Prof Francis Petersen, Rector and Vice-Chancellor.

The UFS supports the United Nations’ (UN) Sustainable Development Goals (SDGs), and in particular Goal 13, which calls for urgent action to combat climate change and its impact and is committed to underpinning it in the institution’s strategy and operations.

According to Prof Petersen, the university is developing a response to positively impact society and is using the SDGs as basis for this response. “This will incorporate our operations in terms of green and sustainable campuses, as well as the Academic Project in terms of quality research, engaged scholarship, and strategic partnerships with government, communities, and different sectors of the economy. A response to the SDGs is a significant step towards our commitment to play a role in climate change,” says Prof Petersen.

News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept