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Research Output

2011

Inducing fractures and increasing cleat apertures in a bituminous coal under isotropic stress via application of microwave energy

Kumar, H., Lester, E., Kingman, S., Bourne, R., Avila, C., Jones, A., Robinson, J., Halleck, P. M. & Mathews, J. P., Oct 1 2011, In : International Journal of Coal Geology. 88, 1, p. 75-82 8 p.

Research output: Contribution to journalArticle

66 Scopus citations

Molecular dynamic simulation of coal-solvent interactions in Permian-aged South African coals

Van Niekerk, D. & Mathews, J. P., Apr 1 2011, In : Fuel Processing Technology. 92, 4, p. 729-734 6 p.

Research output: Contribution to journalArticle

29 Scopus citations

Morphologies, X-ray parameters, and burnout comparisons of inertinite-rich and vitrinite-rich South African bituminous coal derived chars

Louw, E., Mitchell, G. D. & Mathews, J. P., Dec 1 2011, 28th Annual International Pittsburgh Coal Conference 2011, PCC 2011. p. 2752-2765 14 p. (28th Annual International Pittsburgh Coal Conference 2011, PCC 2011; vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Solvent swelling extent of permian-aged vitrinite- and inertinite-rich coals: Experiments and modeling using the perturbed-chain statistical associating fluid theory (PC-SAFT)

Van Niekerk, D., Castro-Marcano, F., Colina, C. M. & Mathews, J. P., Jun 16 2011, In : Energy and Fuels. 25, 6, p. 2559-2564 6 p.

Research output: Contribution to journalArticle

8 Scopus citations

Soot and char molecular representations generated directly from HRTEM lattice fringe images using Fringe3D

Fernandez-Alos, V., Watson, J. K., Wal, R. V. & Mathews, J. P., Sep 1 2011, In : Combustion and Flame. 158, 9, p. 1807-1813 7 p.

Research output: Contribution to journalArticle

60 Scopus citations

The utility of coal molecular models

Mathews, J. P., Van Duin, A. & Chaffee, A. L., Apr 1 2011, In : Fuel processing technology. 92, 4, p. 718-728 11 p.

Research output: Contribution to journalArticle

125 Scopus citations
2012

Advances in coal analyses and simulations 1989-2012

Mathews, J. P., Winans, R., Rodgers, R. P. & Sharma, A., Dec 1 2012, 29th Annual International Pittsburgh Coal Conference 2012, PCC 2012. p. 1484-1494 11 p. (29th Annual International Pittsburgh Coal Conference 2012, PCC 2012; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

A molecular model for Illinois No. 6 Argonne Premium coal: Moving toward capturing the continuum structure

Castro-Marcano, F., Lobodin, V. V., Rodgers, R. P., McKenna, A. M., Marshall, A. G. & Mathews, J. P., May 1 2012, In : Fuel. 95, p. 35-49 15 p.

Research output: Contribution to journalArticle

73 Scopus citations

Chinese coal-in-title journal articles in Chinese and English

Mathews, J. P., Song, C., Finkelman, R. & Yue, W., Dec 1 2012, 29th Annual International Pittsburgh Coal Conference 2012, PCC 2012. p. 2601-2615 15 p. (29th Annual International Pittsburgh Coal Conference 2012, PCC 2012; vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Combustion of an Illinois No. 6 coal char simulated using an atomistic char representation and the ReaxFF reactive force field

Castro-Marcano, F., Kamat, A. M., Russo, M. F., van Duin, A. C. T. & Mathews, J. P., Mar 1 2012, In : Combustion and Flame. 159, 3, p. 1272-1285 14 p.

Research output: Contribution to journalArticle

146 Scopus citations
8 Scopus citations

Fine structure evaluation of the pair distribution function with molecular models of the Argonne Premium coals

Castro-Marcano, F., Winans, R. E., Chupas, P., Chapman, K., Calo, J. M., Watson, J. K. & Mathews, J. P., Jul 19 2012, In : Energy and Fuels. 26, 7, p. 4336-4345 10 p.

Research output: Contribution to journalArticle

23 Scopus citations

Low-temperature treatment of illinois No. 6 coal in ionic liquids

Pulati, N., Sobkowiak, M., Mathews, J. P. & Painter, P., Jun 21 2012, In : Energy and Fuels. 26, 6, p. 3548-3552 5 p.

Research output: Contribution to journalReview article

35 Scopus citations
4 Scopus citations
6 Scopus citations

Optimizing enhanced coalbed methane recovery for unhindered production and CO2 injectivity

Kumar, H., Elsworth, D., Liu, J., Pone, D. & Mathews, J. P., Nov 1 2012, In : International Journal of Greenhouse Gas Control. 11, p. 86-97 12 p.

Research output: Contribution to journalArticle

40 Scopus citations

ReaxFF molecular dynamics pyrolysis simulations of a large-scale model of Illinois no. 6 coal including the role of organic sulfur

Castro-Marcano, F., Van Duin, A. & Mathews, J. P., Dec 1 2012, 29th Annual International Pittsburgh Coal Conference 2012, PCC 2012. p. 1964-1974 11 p. (29th Annual International Pittsburgh Coal Conference 2012, PCC 2012; vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Reviews of science for science librarians: Coal science and technology research 1970-2010

Tolliver, R. L. & Mathews, J. P., Apr 1 2012, In : Science and Technology Libraries. 31, 2, p. 146-163 18 p.

Research output: Contribution to journalReview article

1 Scopus citations

The dynamic permeability of propped and non-propped artificial fracture in granite and bituminous coal with changes in efective stress

John, H. K., Elsworth, D., Mathews, J. P., Liu, J. & Pone, D., Dec 1 2012, 29th Annual International Pittsburgh Coal Conference 2012, PCC 2012. p. 2267-2275 9 p. (29th Annual International Pittsburgh Coal Conference 2012, PCC 2012; vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The molecular representations of coal - A review

Mathews, J. P. & Chaffee, A. L., Jun 1 2012, In : Fuel. 96, p. 1-14 14 p.

Research output: Contribution to journalReview article

264 Scopus citations

The structural alignment of coal and the analogous case of Argonne Upper Freeport coal

Mathews, J. P. & Sharma, A., May 1 2012, In : Fuel. 95, p. 19-24 6 p.

Research output: Contribution to journalArticle

42 Scopus citations
2013

Elucidation of the structural and molecular properties of typical South African coals

Hattingh, B. B., Everson, R. C., Neomagus, H. W. J. P., Bunt, J. R., Van Niekerk, D., Jordaan, J. H. L. & Mathews, J. P., Jun 20 2013, In : Energy and Fuels. 27, 6, p. 3161-3172 12 p.

Research output: Contribution to journalArticle

18 Scopus citations

Novel simplification approach for large-scale structural models of coal: Three-dimensional molecules to two-dimensional lattices. Part 3: Reactive lattice simulations

Alvarez, Y. E., Moreno, B. M., Klein, M. T., Watson, J. K., Castro-Marcano, F. & Mathews, J. P., Jun 20 2013, In : Energy and Fuels. 27, 6, p. 2915-2922 8 p.

Research output: Contribution to journalArticle

5 Scopus citations

The EBB and flow of US coal research 1970-2010 with a focus on academic institutions

Mathews, J. P., Miller, B. G., Song, C., Schobert, H. H., Botha, F. & Finkleman, R. B., Mar 1 2013, In : Fuel. 105, p. 1-12 12 p.

Research output: Contribution to journalReview article

16 Scopus citations
2014

A review of microwave coal processing

Binner, E., Lester, E., Kingman, S., Dodds, C., Robinson, J., Wu, T., Wardle, P. & Mathews, J. P., Jan 1 2014, In : Journal of Microwave Power and Electromagnetic Energy. 48, 1, p. 35-60 26 p.

Research output: Contribution to journalArticle

30 Scopus citations

A review of the correlations of coal properties with elemental composition

Mathews, J. P., Krishnamoorthy, V., Louw, E., Tchapda, A. H. N., Castro-Marcano, F., Karri, V., Alexis, D. A. & Mitchell, G. D., Jan 1 2014, In : Fuel processing technology. 121, p. 104-113 10 p.

Research output: Contribution to journalArticle

42 Scopus citations

Breaking the limits of structural and mechanical imaging of the heterogeneous structure of coal macerals

Collins, L., Tselev, A., Jesse, S., Okatan, M. B., Proksch, R., Mathews, J. P., Mitchell, G. D., Rodriguez, B. J., Kalinin, S. V. & Ivanov, I. N., Oct 31 2014, In : Nanotechnology. 25, 43, 435402.

Research output: Contribution to journalArticle

11 Scopus citations

Effect of CO2 injection on heterogeneously permeable coalbed reservoirs

Kumar, H., Elsworth, D., Mathews, J. P., Liu, J. & Pone, D., Jan 11 2014, In : Fuel. 135, p. 509-521 13 p.

Research output: Contribution to journalArticle

29 Scopus citations

Mapping internal structure of coal by confocal micro-Raman spectroscopy and scanning microwave microscopy

Tselev, A., Ivanov, I. N., Lavrik, N. V., Belianinov, A., Jesse, S., Mathews, J. P., Mitchell, G. D. & Kalinin, S. V., Jun 15 2014, In : Fuel. 126, p. 32-37 6 p.

Research output: Contribution to journalArticle

29 Scopus citations

Permeability evolution in fractured coal - Combining triaxial confinement with X-ray computed tomography, acoustic emission and ultrasonic techniques

Cai, Y., Liu, D., Mathews, J. P., Pan, Z., Elsworth, D., Yao, Y., Li, J. & Guo, X., Feb 1 2014, In : International Journal of Coal Geology. 122, p. 91-104 14 p.

Research output: Contribution to journalArticle

97 Scopus citations

Pyrolysis of a large-scale molecular model for Illinois no. 6 coal using the ReaxFF reactive force field

Castro-Marcano, F., Russo, M. F., Van Duin, A. & Mathews, J. P., Sep 1 2014, In : Journal of Analytical and Applied Pyrolysis. 109, p. 79-89 11 p.

Research output: Contribution to journalArticle

51 Scopus citations
2015

Activated carbon efficient atomistic model construction that depicts experimentally-determined characteristics

Huang, Y., Cannon, F. S., Watson, J. K., Reznik, B. & Mathews, J. P., Mar 1 2015, In : Carbon. 83, p. 1-14 14 p.

Research output: Contribution to journalArticle

17 Scopus citations

Chemical-structural properties of South African bituminous coals: Insights from wide angle XRD-carbon fraction analysis, ATR-FTIR, solid state 13C NMR, and HRTEM techniques

Okolo, G. N., Neomagus, H. W. J. P., Everson, R. C., Roberts, M. J., Bunt, J. R., Sakurovs, R. & Mathews, J. P., Jun 22 2015, In : Fuel. 158, p. 779-792 14 p.

Research output: Contribution to journalArticle

105 Scopus citations

Construction Strategy for Atomistic Models of Coal Chars Capturing Stacking Diversity and Pore Size Distribution

Wang, CA., Watson, J. K., Louw, E. & Mathews, J. P., Aug 20 2015, In : Energy and Fuels. 29, 8, p. 4814-4826 13 p.

Research output: Contribution to journalArticle

14 Scopus citations

Density functional theory molecular modelling and experimental particle kinetics for CO2-char gasification

Roberts, M. J., Everson, R. C., Domazetis, G., Neomagus, H. W. J. P., Jones, J. M., Van Sittert, C. G. C. E., Okolo, G. N., Niekerk, D. V. & Mathews, J. P., Aug 8 2015, In : Carbon. 93, p. 295-314 20 p.

Research output: Contribution to journalArticle

20 Scopus citations

Influence of maceral composition on the structure, properties and behaviour of chars derived from South African coals

Roberts, M. J., Everson, R. C., Neomagus, H. W. J. P., Van Niekerk, D., Mathews, J. P. & Branken, D. J., Feb 15 2015, In : Fuel. 142, p. 9-20 12 p.

Research output: Contribution to journalArticle

47 Scopus citations

Interactions of Illinois No. 6 bituminous coal with solvents: A review of solvent swelling and extraction literature

Mathews, J. P., Clifford, C. E. & Painter, P., Mar 19 2015, In : Energy and Fuels. 29, 3, p. 1279-1294 16 p.

Research output: Contribution to journalArticle

30 Scopus citations

Permeability evolution of propped artificial fractures in coal on injection of CO2

Kumar, H., Elsworth, D., Liu, J., Pone, D. & Mathews, J. P., Sep 1 2015, In : Journal of Petroleum Science and Engineering. 133, p. 695-704 10 p.

Research output: Contribution to journalArticle

20 Scopus citations

Pore development during gasification of South African inertinite-rich chars evaluated using small angle X-ray scattering

Coetzee, G. H., Sakurovs, R., Neomagus, H. W. J. P., Morpeth, L., Everson, R. C., Mathews, J. P. & Bunt, J. R., Oct 11 2015, In : Carbon. 95, p. 250-260 11 p.

Research output: Contribution to journalArticle

17 Scopus citations

Reduction of caking propensity in large (millimeter-sized) South African coal particles with potassium carbonate impregnation to expand fixed- and fluidized-bed gasification feedstock suitability

Coetzee, S., Neomagus, H. W. J. P., Bunt, J. R., Mathews, J. P., Strydom, C. A. & Schobert, H. H., Jul 16 2015, In : Energy and Fuels. 29, 7, p. 4255-4263 9 p.

Research output: Contribution to journalArticle

2 Scopus citations

The characterisation of slow-heated inertinite- and vitrinite-rich coals from the South African coalfields

Roberts, M. J., Everson, R. C., Neomagus, H. W. J. P., Okolo, G. N., Van Niekerk, D. & Mathews, J. P., Jun 17 2015, In : Fuel. 158, p. 591-601 11 p., 9309.

Research output: Contribution to journalArticle

19 Scopus citations
2016

A comparative evaluation of coal specific surface area by CO2 and N2 adsorption and its influence on CH4 adsorption capacity at different pore sizes

Zhao, J., Xu, H., Tang, D., Mathews, J. P., Li, S. & Tao, S., Nov 1 2016, In : Fuel. 183, p. 420-431 12 p.

Research output: Contribution to journalArticle

68 Scopus citations

Atomistic modelling insight into the structure of lignite-based activated carbon and benzene sorption behavior

Huang, Y., Cannon, F. S., Guo, J., Watson, J. K. & Mathews, J. P., Jan 1 2016, In : RSC Advances. 6, 61, p. 56623-56637 15 p.

Research output: Contribution to journalArticle

6 Scopus citations

Atomistic simulation of coal char isothermal oxy-fuel combustion: Char reactivity and behavior

Xin, H., Wang, C., Louw, E., Wang, D. & Mathews, J. P., Oct 15 2016, In : Fuel. 182, p. 935-943 9 p.

Research output: Contribution to journalArticle

10 Scopus citations

Coal char reactivity and micro-structure influences in O2/CO2 combustion using simplified atomistic simulation

Wang, C. A., Xin, H. H., Watson, J. K., Che, D. F. & Mathews, J. P., Jul 1 2016, In : Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics. 37, 7, p. 1583-1588 6 p.

Research output: Contribution to journalArticle

Coal seam porosity and fracture heterogeneity of macrolithotypes in the Hancheng Block, eastern margin, Ordos Basin, China

Zhao, J., Xu, H., Tang, D., Mathews, J. P., Li, S. & Tao, S., Apr 1 2016, In : International Journal of Coal Geology. 159, p. 18-29 12 p.

Research output: Contribution to journalArticle

48 Scopus citations

Constitution of Drop-Tube-Generated Coal Chars from Vitrinite- and Inertinite-Rich South African Coals

Louw, E. B., Mitchell, G. D., Wang, J., Winans, R. E. & Mathews, J. P., Jan 21 2016, In : Energy and Fuels. 30, 1, p. 112-120 9 p.

Research output: Contribution to journalArticle

11 Scopus citations

Evaluation of coal macrolithotypes distribution by geophysical logging data in the Hancheng Block, Eastern Margin, Ordos Basin, China

Xu, H., Tang, D., Mathews, J. P., Zhao, J., Li, B., Tao, S. & Li, S., Aug 1 2016, In : International Journal of Coal Geology. 165, p. 265-277 13 p.

Research output: Contribution to journalArticle

17 Scopus citations

Permeability evolution in sorbing media: Analogies between organic-rich shale and coal

Kumar, H., Elsworth, D., Mathews, J. P. & Marone, C., Feb 1 2016, In : Geofluids. 16, 1, p. 43-55 13 p.

Research output: Contribution to journalArticle

38 Scopus citations