1. Catalysis and Synthesis Research Group
2. Focus Area for Chemical Resource Beneficiation
3. North-West University
4. Potchefstroom 2520
5. South Africa
6. School of Chemistry
7. The University of Manchester
8. Manchester M13 9PL
9. UK
10. Department of Chemistry and Polymer Science
11. Stellenbosch University
12. Matieland 7602