Haifeng Xiong1,2, Myriam A.M. Motchelaho2,3, Mahluli Moyo2,3, Linda L. Jewell3, Neil J. Coville1,2
1DST/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg, 2050, South Africa
2Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
3School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg 2050, South Africa