Research output per year
Research output per year
Personal profile
Research Interests
Organic petrology, coal petrography, trace elements and critical raw materials in coal and associated products, coal geology, carbon dioxide capture and storage, coal oxidation, underground coal gasification, coal conversion, ash utilisation; Organic petrology, coal petrography, trace elements and critical raw materials in coal and associated products, coal geology, carbon dioxide capture and storage, coal oxidation, underground coal gasification, coal conversion, ash utilisation, and so on.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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Collaborations and top research areas from the last five years
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An assessment of Rare Earth Elements in borehole cores from the Ermelo, Witbank and Waterberg Coalfields, South Africa: Focus on mode of occurrence
Modiba, D. G. & Wagner, N. J., Oct 2024, In: Journal of the Southern African Institute of Mining and Metallurgy. 124, 10, p. 559-566 8 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Characterisation of rare earth element-bearing mineral phases present in South African coal ash using Mineral Liberation analysis
Rerani, V. P., Mabowa, H. M. & Wagner, N. J., 15 Jul 2024, In: Fuel. 368, 131661.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Enrichment of rare earth elements in epigenetic dolomite occurring in contact metamorphosed Witbank coals (South Africa)
Moroeng, O. M., Murathi, B. & Wagner, N. J., 1 Feb 2024, In: International Journal of Coal Geology. 282, 104405.Research output: Contribution to journal › Article › peer-review
Open Access7 Citations (Scopus) -
Graphitization: Microstructural and microtextural transformations of residual char from international coal combustion ash
Santos, A. C., Badenhorst, C., Białecka, B., Cameán, I., Guedes, A., Moreira, K., Predeanu, G., Suárez-Ruiz, I., Wagner, N. & Valentim, B., 11 Apr 2024, In: International Journal of Coal Geology. 285, 104470.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Hyperspectral imaging of coal core: A focus on the visible-near-shortwave infrared (VN-SWIR) region
Langa, W. M., Ndou, C., Zieger, L., Harris, P. & Wagner, N., 18 Mar 2024, In: International Journal of Coal Geology. 284, 104456.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus)