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Research Output

2020

Experimental analysis of the evolution of soot structure during CO2 gasification

Chang, Q., Gao, R., Gao, M., Yu, G., Mathews, J. P. & Wang, F., Apr 1 2020, In : Fuel. 265, 116699.

Research output: Contribution to journalArticle

Macromolecular transformations for tectonically-deformed high volatile bituminous via HRTEM and XRD analyses

Song, Y., Jiang, B., Li, M., Hou, C. & Mathews, J. P., Mar 1 2020, In : Fuel. 263, 116756.

Research output: Contribution to journalArticle

2019

Atomistic Simulation of Coal Char Oxy-Fuel Combustion: Quantifying the Influences of CO2 to Char Reactivity

Du, Y., Wang, C., Xin, H., Che, D. & Mathews, J. P., Oct 17 2019, In : Energy and Fuels. 33, 10, p. 10228-10236 9 p.

Research output: Contribution to journalArticle

2 Scopus citations

Competitive or additive behavior for H2O and CO2 gasification of coal char? Exploration via simplistic atomistic simulation

Du, Y., Wang, C., Xin, H., Che, D. & Mathews, J. P., Jan 2019, In : Carbon. 141, p. 226-237 12 p.

Research output: Contribution to journalArticle

4 Scopus citations

ReaxFF MD simulations of petroleum coke CO2 gasification examining the S/N removal mechanisms and CO/CO2 reactivity

Zhong, Q., Zhang, Y., Shabnam, S., Mao, Q., Xiao, J., van Duin, A. C. T. & Mathews, J. P., Dec 1 2019, In : Fuel. 257, 116051.

Research output: Contribution to journalArticle

1 Scopus citations

Reductive Gaseous (H2/NH3) Desulfurization and Gasification of High-Sulfur Petroleum Coke via Reactive Force Field Molecular Dynamics Simulations

Zhong, Q., Zhang, Y., Shabnam, S., Xiao, J., Van Duin, A. C. T. & Mathews, J. P., Sep 19 2019, In : Energy and Fuels. 33, 9, p. 8065-8075 11 p.

Research output: Contribution to journalArticle

1 Scopus citations

Structural Differences of Spontaneous Combustion Prone Inertinite-Rich Chinese Lignite Coals: Insights from XRD, Solid-State 13 C NMR, LDIMS, and HRTEM

Zhang, Y., Zhang, X., Zhong, Q., Hu, S. & Mathews, J. P., May 16 2019, In : Energy and Fuels. 33, 5, p. 4575-4584 10 p.

Research output: Contribution to journalArticle

1 Scopus citations

The impact of the coal macrolithotype on reservoir productivity, hydraulic fracture initiation and propagation

Liu, Y., Xu, H., Tang, D., Mathews, J. P., Zhai, Y., Hou, W., Li, S., Tao, S., Xiong, X. & Wang, W., Mar 1 2019, In : Fuel. 239, p. 471-483 13 p.

Research output: Contribution to journalArticle

9 Scopus citations
2018

ReaxFF simulations of petroleum coke sulfur removal mechanisms during pyrolysis and combustion

Zhong, Q., Mao, Q., Xiao, J., van Duin, A. C. T. & Mathews, J. P., Dec 2018, In : Combustion and Flame. 198, p. 146-157 12 p.

Research output: Contribution to journalArticle

9 Scopus citations

Structural features of Qingdao petroleum coke from HRTEM lattice fringes: Distributions of length, orientation, stacking, curvature, and a large-scale image-guided 3D atomistic representation

Zhong, Q., Mao, Q., Zhang, L., Xiang, J., Xiao, J. & Mathews, J. P., Apr 2018, In : Carbon. 129, p. 790-802 13 p.

Research output: Contribution to journalArticle

19 Scopus citations
11 Scopus citations
2017

A review of the application of X-ray computed tomography to the study of coal

Mathews, J. P., Campbell, Q. P., Xu, H. & Halleck, P., Jan 1 2017, In : Fuel. 209, p. 10-24 15 p.

Research output: Contribution to journalReview article

39 Scopus citations

Improved quantification of curvature in high-resolution transmission electron microscopy lattice fringe micrographs of soots

Wang, C., Huddle, T., Huang, C. H., Zhu, W., Vander Wal, R. L., Lester, E. H. & Mathews, J. P., Jun 1 2017, In : Carbon. 117, p. 174-181 8 p.

Research output: Contribution to journalArticle

21 Scopus citations

Particle size influence on the pore development of nanopores in coal gasification chars: From micron to millimeter particles

Coetzee, G. H., Sakurovs, R., Neomagus, H. W. J. P., Everson, R. C., Mathews, J. P. & Bunt, J. R., Feb 1 2017, In : Carbon. 112, p. 37-46 10 p.

Research output: Contribution to journalArticle

11 Scopus citations

Pulsed laser annealing of carbon black

Abrahamson, J. P., Singh, M., Mathews, J. P. & Vander Wal, R. L., Nov 2017, In : Carbon. 124, p. 380-390 11 p.

Research output: Contribution to journalArticle

14 Scopus citations

Structural transformations and hydrocarbon generation of low-rank coal (vitrinite) during slow heating pyrolysis

Song, Y., Jiang, B., Mathews, J. P., Yan, G. & Li, F., Jan 1 2017, In : Fuel processing technology. 167, p. 535-544 10 p.

Research output: Contribution to journalArticle

11 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

70 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

50 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

Quantifying Curvature in High-Resolution Transmission Electron Microscopy Lattice Fringe Micrographs of Coals

Wang, C., Huddle, T., Lester, E. H. & Mathews, J. P., Apr 21 2016, In : Energy and Fuels. 30, 4, p. 2694-2704 11 p.

Research output: Contribution to journalArticle

13 Scopus citations

The 8th International Symposium on Coal Combustion (ISCC-8)

Li, S., Mathews, J. P., Bhattacharya, S., Kneer, R., Gupta, R., Johnsson, F. & Axelbaum, R. L., Nov 15 2016, In : Fuel. 184, 1 p.

Research output: Contribution to journalEditorial

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

110 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

48 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
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

31 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

43 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

100 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

52 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
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

75 Scopus citations