All Outputs (56)

Effects of compression on mechanical integrity, gas permeability and thermal stability of gas diffusion layers with/without sealing gaskets (2021)
Journal Article
Aldakheel, F., Ismail, M. S., Hughes, K. J., Ingham, D. B., Ma, L., & Pourkashanian, M. (2021). Effects of compression on mechanical integrity, gas permeability and thermal stability of gas diffusion layers with/without sealing gaskets. International Journal of Hydrogen Energy, 46(44), 22907-22919. https://doi.org/10.1016/j.ijhydene.2021.04.087

The compressibility, the gas permeability and the thermal stability of 4 commercially available uncoated GDLs (or carbon substrates) and MPL-coated GDLs are, with/without Teflon and silicone sealing gaskets, investigated before and after performing e... Read More about Effects of compression on mechanical integrity, gas permeability and thermal stability of gas diffusion layers with/without sealing gaskets.

A dynamic model of air-breathing polymer electrolyte fuel cell (PEFC): A parametric study (2021)
Journal Article
Calili, F., Ismail, M. S., Ingham, D. B., Hughes, K. J., Ma, L., & Pourkashanian, M. (2021). A dynamic model of air-breathing polymer electrolyte fuel cell (PEFC): A parametric study. International Journal of Hydrogen Energy, 46(33), 17343-17357. https://doi.org/10.1016/j.ijhydene.2021.02.133

A dynamic model for an air-breathing PEFC has been built to investigate the transient response of the fuel cell to load changes. The sensitivities of the dynamic response, as well as the steady state performance, to: the ambient temperature and relat... Read More about A dynamic model of air-breathing polymer electrolyte fuel cell (PEFC): A parametric study.

Erratum: Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels (Chem. Mater. (2021) 33: 1 (392-402) DOI: 10.1021/acs.chemmater.0c04166) (2021)
Journal Article
Xia, D., Xu, Y., Mannering, J., Ma, X., Ismail, M. S., Borman, D., …Menzel, R. (2021). Erratum: Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels (Chem. Mater. (2021) 33: 1 (392-402) DOI: 10.1021/acs.chemmater.0c04166). Chemistry of materials : a publication of the American Chemical Society, 33(3), 1082. https://doi.org/10.1021/acs.chemmater.1c00026

We noticed that the Marie Curie Individual Fellowship of Dr. Xu (H2020-MSAC-IF-2019-885795-PolyTEM) was inappropriately acknowledged in the manuscript, as this funding source is not relevant to this study. All authors of this manuscript agree with st... Read More about Erratum: Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels (Chem. Mater. (2021) 33: 1 (392-402) DOI: 10.1021/acs.chemmater.0c04166).

Direct contact membrane distillation: A sensitivity analysis and an outlook on membrane effective thermal conductivity (2021)
Journal Article
Ismail, M. S., Mohamed, A. M., Poggio, D., & Pourkashanian, M. (2021). Direct contact membrane distillation: A sensitivity analysis and an outlook on membrane effective thermal conductivity. Journal of membrane science, 624, Article 119035. https://doi.org/10.1016/j.memsci.2020.119035

A rigorous and high-fidelity two-dimensional numerical model for a direct contact membrane distillation (DCMD) module has been developed. The developed model incorporates all the key physics governing the transport phenomena taking place within the m... Read More about Direct contact membrane distillation: A sensitivity analysis and an outlook on membrane effective thermal conductivity.

Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels (2020)
Journal Article
Xia, D., Xu, Y., Mannering, J., Ma, X., Ismail, M. S., Borman, D., …Menzel, R. (2021). Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels. Chemistry of materials : a publication of the American Chemical Society, 33(1), 392-402. https://doi.org/10.1021/acs.chemmater.0c04166

Nanocarbon aerogels display outstanding electrical and solar thermal heating efficiencies. However, little is known about the relationship between their microstructure and the heating performance. In this study, two different types of carbon nanotube... Read More about Tuning the Electrical and Solar Thermal Heating Efficiencies of Nanocarbon Aerogels.

Effects of geometrical dimensions of flow channels of a large-active-area PEM fuel cell: A CFD study (2020)
Journal Article
Carcadea, E., Ismail, M. S., Ingham, D. B., Patularu, L., Schitea, D., Marinoiu, A., …Varlam, M. (2021). Effects of geometrical dimensions of flow channels of a large-active-area PEM fuel cell: A CFD study. International Journal of Hydrogen Energy, 46(25), 13572-13582. https://doi.org/10.1016/j.ijhydene.2020.08.150

Various flow field designs have been numerically investigated to evaluate the effect of pattern and the cross-sectional dimensions of the channel on the performance of a large active area PEM fuel cell. Three types of multiple-serpentine channels (7-... Read More about Effects of geometrical dimensions of flow channels of a large-active-area PEM fuel cell: A CFD study.

Gram-scale synthesis of alkoxide-derived nitrogen-doped carbon foam as a support for Fe-N-C electrocatalysts (2020)
Journal Article
Mufundirwa, A., Harrington, G. F., Ismail, M. S., Šmid, B., Cunning, B. V., Shundo, Y., …Lyth, S. M. (2020). Gram-scale synthesis of alkoxide-derived nitrogen-doped carbon foam as a support for Fe-N-C electrocatalysts. Nanotechnology, 31(22), Article 225401. https://doi.org/10.1088/1361-6528/ab76ed

Non-platinum group metal (non-PGM) catalysts for the oxygen reduction reaction (ORR) are set to reduce the cost of polymer electrolyte membrane fuel cells (PEFCs) by replacing platinum at the cathode. We previously developed unique nitrogen-doped car... Read More about Gram-scale synthesis of alkoxide-derived nitrogen-doped carbon foam as a support for Fe-N-C electrocatalysts.

Gas permeability, wettability and morphology of gas diffusion layers before and after performing a realistic ex-situ compression test (2019)
Journal Article
Aldakheel, F., Ismail, M. S., Hughes, K. J., Ingham, D. B., Ma, L., Pourkashanian, M., …Smith, R. (2020). Gas permeability, wettability and morphology of gas diffusion layers before and after performing a realistic ex-situ compression test. Renewable energy, 151, 1082-1091. https://doi.org/10.1016/j.renene.2019.11.109

The through-plane gas permeability, wettability, thickness and morphology have been investigated before and after a compression test, which is important to the GDL design. The compression tests were designed to simulate the initial assembling compres... Read More about Gas permeability, wettability and morphology of gas diffusion layers before and after performing a realistic ex-situ compression test.

Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell (2019)
Journal Article
Azarafza, A., Ismail, M. S., Rezakazemi, M., & Pourkashanian, M. (2019). Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell. Renewable & sustainable energy reviews, 116, Article 109420. https://doi.org/10.1016/j.rser.2019.109420

The choice of an appropriate flow field distributor is crucial to circumvent mass and charge transfer resistance-related issues in proton exchange membrane fuel cells (PEMFCs). In this work, incorporating all the anisotropic nature of the gas diffusi... Read More about Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell.

PEM fuel cell performance improvement through numerical optimization of the parameters of the porous layers (2019)
Journal Article
Carcadea, E., Varlam, M., Ismail, M., Ingham, D. B., Marinoiu, A., Raceanu, M., …Ion-Ebrasu, D. (2020). PEM fuel cell performance improvement through numerical optimization of the parameters of the porous layers. International Journal of Hydrogen Energy, 45(14), 7968-7980. https://doi.org/10.1016/j.ijhydene.2019.08.219

A numerical model for a PEM fuel cell has been developed and used to investigate the effect of some of the key parameters of the porous layers of the fuel cell (GDL and MPL) on its performance. The model is comprehensive as it is three-dimensional, m... Read More about PEM fuel cell performance improvement through numerical optimization of the parameters of the porous layers.

Effects of hydrogen relative humidity on the performance of an air-breathing PEM fuel cell: A numerical study (2019)
Journal Article
Chen, Z., Ingham, D., Ismail, M., Ma, L., Hughes, K. J., & Pourkashanian, M. (2020). Effects of hydrogen relative humidity on the performance of an air-breathing PEM fuel cell: A numerical study. International Journal of Numerical Methods for Heat and Fluid Flow, 30(4), 2077-2097. https://doi.org/10.1108/HFF-11-2018-0674

Purpose: The purpose of this paper is to investigate the effects of hydrogen humidity on the performance of air-breathing proton exchange membrane (PEM) fuel cells. Design/methodology/approach: An efficient mathematical model for air-breathing PEM fu... Read More about Effects of hydrogen relative humidity on the performance of an air-breathing PEM fuel cell: A numerical study.

Comparative Study of the Effect of Fuel Deoxygenation and Polar Species Removal on Jet Fuel Surface Deposition (2019)
Journal Article
Alborzi, E., Gadsby, P., Ismail, M. S., Sheikhansari, A., Dwyer, M. R., Meijer, A. J., …Pourkashanian, M. (2019). Comparative Study of the Effect of Fuel Deoxygenation and Polar Species Removal on Jet Fuel Surface Deposition. Energy and Fuels, 33(3), 1825-1836. https://doi.org/10.1021/acs.energyfuels.8b03468

The effect of near-complete deoxygenation and polar species removal on the deposition propensity of a Jet A-1 fuel type with marginal thermal oxidative stability was studied in a laboratory-scale approach. The fuel deoxygenation was carried out via n... Read More about Comparative Study of the Effect of Fuel Deoxygenation and Polar Species Removal on Jet Fuel Surface Deposition.

Influence of catalyst structure on PEM fuel cell performance – A numerical investigation (2019)
Journal Article
Carcadea, E., Varlam, M., Marinoiu, A., Raceanu, M., Ismail, M. S., & Ingham, D. B. (2019). Influence of catalyst structure on PEM fuel cell performance – A numerical investigation. International Journal of Hydrogen Energy, 44(25), 12829-12841. https://doi.org/10.1016/j.ijhydene.2018.12.155

The effect of the catalyst microstructure on a 5 cm2 PEM fuel cell performance is numerically investigated. The catalyst layer composition and properties (i.e. ionomer volume fraction, platinum loading, particle radius, electrochemical active area an... Read More about Influence of catalyst structure on PEM fuel cell performance – A numerical investigation.

Dynamics of liquid water in the anode flow channels of PEM fuel cells: A numerical parametric study (2018)
Journal Article
Chen, Z. X., Ingham, D. B., Ismail, M. S., Ma, L., Hughes, K. J., & Pourkashanian, M. (2019). Dynamics of liquid water in the anode flow channels of PEM fuel cells: A numerical parametric study. Journal of the Energy Institute, 92(6), 1956-1967. https://doi.org/10.1016/j.joei.2018.10.016

A 3D volume of fluid (VOF) model for an anode channel in a PEM fuel cell has been built. The effects of the initial position of the water droplet, its size as well as the wettability of the gas diffusion layer (GDL) are investigated under different o... Read More about Dynamics of liquid water in the anode flow channels of PEM fuel cells: A numerical parametric study.

The effects of cathode flow channel size and operating conditions on PEM fuel performance: A CFD modelling study and experimental demonstration (2018)
Journal Article
Carcadea, E., Varlam, M., Ingham, D. B., Ismail, M. S., Patularu, L., Marinoiu, A., & Schitea, D. (2018). The effects of cathode flow channel size and operating conditions on PEM fuel performance: A CFD modelling study and experimental demonstration. International journal of energy research, 42(8), 2789-2804. https://doi.org/10.1002/er.4068

A comprehensive 3D, multiphase, and nonisothermal model for a proton exchange membrane fuel cell has been developed in this study. The model has been used to investigate the effects of the size of the parallel-type cathode flow channel on the fuel ce... Read More about The effects of cathode flow channel size and operating conditions on PEM fuel performance: A CFD modelling study and experimental demonstration.

Simultaneous thermal and visual imaging of liquid water of the PEM fuel cell flow channels (2018)
Journal Article
Aslam, R. M., Ingham, D. B., Ismail, M. S., Hughes, K. J., Ma, L., & Pourkashanian, M. (2019). Simultaneous thermal and visual imaging of liquid water of the PEM fuel cell flow channels. Journal of the Energy Institute, 92(2), 311-318. https://doi.org/10.1016/j.joei.2018.01.005

Water flooding and membrane dry-out are two major issues that could be very detrimental to the performance and/or durability of the proton exchange membrane (PEM) fuel cells. The above two phenomena are well-related to the distributions of and the in... Read More about Simultaneous thermal and visual imaging of liquid water of the PEM fuel cell flow channels.

On the gas permeability of the microporous layer used in polymer electrolyte fuel cells (2017)
Journal Article
Orogbemi, O. M., Ingham, D. B., Ismail, M. S., Hughes, K. J., Ma, L., & Pourkashanian, M. (2018). On the gas permeability of the microporous layer used in polymer electrolyte fuel cells. Journal of the Energy Institute, 91(6), 894-901. https://doi.org/10.1016/j.joei.2017.09.006

In an attempt to obtain accurate values of the gas permeability of the microporous layer (MPL), substrates with negligible MPL penetration and of known gas permeability, i.e. membrane filters, have been employed. The values of the MPL permeability ob... Read More about On the gas permeability of the microporous layer used in polymer electrolyte fuel cells.

Simultaneous direct visualisation of liquid water in the cathode and anode serpentine flow channels of proton exchange membrane (PEM) fuel cells (2017)
Journal Article
Aslam, R. M., Ingham, D. B., Ismail, M. S., Hughes, K. J., Ma, L., & Pourkashanian, M. (2018). Simultaneous direct visualisation of liquid water in the cathode and anode serpentine flow channels of proton exchange membrane (PEM) fuel cells. Journal of the Energy Institute, 91(6), 1057-1070. https://doi.org/10.1016/j.joei.2017.07.003

Water flooding is detrimental to the performance of the proton exchange membrane fuel cell (PEMFC) and therefore it has to be addressed. To better understand how liquid water affects the fuel cell performance, direct visualisation of liquid water in... Read More about Simultaneous direct visualisation of liquid water in the cathode and anode serpentine flow channels of proton exchange membrane (PEM) fuel cells.

Through-plane gas permeability of gas diffusion layers and microporous layer: Effects of carbon loading and sintering (2017)
Journal Article
Orogbemi, O. M., Ingham, D. B., Ismail, M. S., Hughes, K. J., Ma, L., & Pourkashanian, M. (2018). Through-plane gas permeability of gas diffusion layers and microporous layer: Effects of carbon loading and sintering. Journal of the Energy Institute, 91(2), 270-278. https://doi.org/10.1016/j.joei.2016.11.008

Knowledge of the absolute permeability for the various porous layers is necessary to obtain accurate profiles for water saturation within the membrane electrode assembly (MEA) in a two-phase model of a polymer electrolyte membrane fuel cell (PEMFC).... Read More about Through-plane gas permeability of gas diffusion layers and microporous layer: Effects of carbon loading and sintering.

Effects of catalyst agglomerate shape in polymer electrolyte fuel cells investigated by a multi-scale modelling framework (2017)
Journal Article
Ismail, M. S., Ingham, D. B., Ma, L., Hughes, K. J., & Pourkashanian, M. (2017). Effects of catalyst agglomerate shape in polymer electrolyte fuel cells investigated by a multi-scale modelling framework. Energy, 122, 420-430. https://doi.org/10.1016/j.energy.2017.01.092

A multi-scale modelling framework is developed for the PEFC cathode electrode. Unlike the conventional agglomerate model, the effects of the microstructure of the agglomerate are numerically coupled to the fuel cell-scale model in this framework. Thi... Read More about Effects of catalyst agglomerate shape in polymer electrolyte fuel cells investigated by a multi-scale modelling framework.