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Experimental investigation of a vertically downward two-phase air-water slug flow (2017)
Journal Article
Bouyahiaoui, H., Azzi, A., Zeghloul, A., Hasan, A., & Berrouk, A. S. (2018). Experimental investigation of a vertically downward two-phase air-water slug flow. Journal of Petroleum Science and Engineering, 162, 12-21. https://doi.org/10.1016/j.petrol.2017.12.028

The present experimental work investigates the vertical downward two-phase slug flow in a transparent vertical pipe of 34 mm internal diameter. The gas and liquid superficial velocities are in the range of 0–3.27 m/s and 0.015–1.4 m/s respectively. T... Read More about Experimental investigation of a vertically downward two-phase air-water slug flow.

Churn flow in high viscosity oils and large diameter columns (2017)
Journal Article
Mohammed, S. K., Hasan, A., Dimitrakis, G., & Azzopardi, B. J. (2018). Churn flow in high viscosity oils and large diameter columns. International journal of multiphase flow, 100, 16-29. https://doi.org/10.1016/j.ijmultiphaseflow.2017.11.018

Churn flow is an important intermediate flow regime occurring in between slug and annular flow patterns in two-phase flow, with profound implications in chemical and petroleum industry. The majority of studies to date in churn flow have been carried... Read More about Churn flow in high viscosity oils and large diameter columns.

The effect of the presence of Sodium bis-(2-ethylhexyl) sulfosuccinate (AOT) on the interactions between Sodium dodecyl sulfate (SDS) and protein papain (2017)
Journal Article
Mehta, S. K., Bhawna, Rekha, Kansal, S. K., & Ibhadon, A. O. (2017). The effect of the presence of Sodium bis-(2-ethylhexyl) sulfosuccinate (AOT) on the interactions between Sodium dodecyl sulfate (SDS) and protein papain. Journal of Molecular Liquids, 248, 751-758. https://doi.org/10.1016/j.molliq.2017.10.083

Interactions between mixed anionic surfactants: Sodium dodecyl sulfate (SDS) and Sodium bis-(2-ethylhexyl) sulfosuccinate (AOT) and papain were investigated over the entire mole fraction range of SDS i.e. αSDS. The UV–visible and fluorescence behavio... Read More about The effect of the presence of Sodium bis-(2-ethylhexyl) sulfosuccinate (AOT) on the interactions between Sodium dodecyl sulfate (SDS) and protein papain.

Wheat straw bio-refining. Part II: Optimization of the microwave radiation with sulphuric acid pre-treatment and its enzymatic hydrolysis for fermentable sugars (2017)
Journal Article
Festus, O., Skoulou, V. K., & Zein, S. H. (2017). Wheat straw bio-refining. Part II: Optimization of the microwave radiation with sulphuric acid pre-treatment and its enzymatic hydrolysis for fermentable sugars. Current Microwave Chemistry, 4(4), 306-316. https://doi.org/10.2174/2213335604666171103123459

Background: The potential of microwave-assisted heating for enhancing the alkaline pretreatment of lignocellulosic waste is highlighted in this work.

Objective: To maximize separation of fermentable sugars from wheat straw.

Methods: Wheat straw... Read More about Wheat straw bio-refining. Part II: Optimization of the microwave radiation with sulphuric acid pre-treatment and its enzymatic hydrolysis for fermentable sugars.

Ir-catalysed N2O decomposition effect of Ir particle size and metal support interactions (2017)
Journal Article
Yentekakis, I., Goula, G., Kampouri, S., Betsi-argyropoulou, I., Panagiotopoulou, P., Taylor, M., Kyriakou, G., & Lambert, R. (2018). Ir-catalysed N2O decomposition effect of Ir particle size and metal support interactions. Catalysis Letters, 148(1), 341-347. https://doi.org/10.1007/s10562-017-2233-z

The effect of the morphology of Ir particles supported on γ-Al2O3, 8 mol%Y2O3-stabilized ZrO2 (YSZ), 10 mol%Gd2O3-doped CeO2 (GDC) and 80 wt%Al2O3–10 wt%CeO2–10 wt%ZrO2 (ACZ) on their stability on oxidative conditions, the associated metal–support in... Read More about Ir-catalysed N2O decomposition effect of Ir particle size and metal support interactions.

Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices (2017)
Journal Article
Zeghloul, A., Azzi, A., Hasan, A., & Azzopardi, B. J. (2018). Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices. Proceedings of the Institution of Mechanical Engineers. Part C, Mechanical engineering science, 232(18), 3281-3299. https://doi.org/10.1177/0954406217736081

Experimental results on hydrodynamic behavior and pressure drop of two-phase mixture flowing upwardly in a pipe containing single- and/or multi-hole orifice plate are presented. It was found from the measurement of the void fraction upstream and down... Read More about Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices.

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.

An experimental study of a falling liquid film in a vertical pipe (2017)
Presentation / Conference Contribution
Hasan, A., Azzopardi, B., Hewakandamby, B., Mohammed, S. K., & AlAufi, Y. (2019, October). An experimental study of a falling liquid film in a vertical pipe. Presented at 10th World Congress of Chemical Engineering, Spain

The majority of the experimental and theoretical studies in literature on the falling liquid film focus on either small diameter pipes or flat plates. Almost, all these studies provide time series data of the film thickness at a single point on the p... Read More about An experimental study of a falling liquid film in a vertical pipe.

Dependency of the combustion behavior of energy grass and three other types of biomass upon lignocellulosic composition (2017)
Journal Article
Ma, Y., Guan, Y., Zhang, K., Xu, G., Yang, Y., & Stevenson, P. (2018). Dependency of the combustion behavior of energy grass and three other types of biomass upon lignocellulosic composition. Environmental Progress and Sustainable Energy, 37(2), 815-823. https://doi.org/10.1002/ep.12705

The combustion characteristics of four kinds of biomass fuels (energy grass, sawdust, corn cob, and walnut shell) are investigated in this article. All the samples are heated from room temperature to 800°C at multiple heating rates of 10, 20, and 30°... Read More about Dependency of the combustion behavior of energy grass and three other types of biomass upon lignocellulosic composition.

One-step reforming of CO₂ and CH₄ to high-value liquid chemicals and fuels at room temperature via plasma-driven catalysis (2017)
Journal Article
Wang, L., Yi, Y., Wu, C., Guo, H., & Tu, X. (2017). One-step reforming of CO₂ and CH₄ to high-value liquid chemicals and fuels at room temperature via plasma-driven catalysis. Angewandte Chemie, 129(44), 13867-13871. https://doi.org/10.1002/ange.201707131

Conversion of CO₂ with CH₄ into liquid fuels and chemicals in a single-step catalytic process bypassing the production of syngas remains a challenge. In this study, one-step synthesis of liquid fuels and chemicals (e.g. acetic acid, methanol, ethanol... Read More about One-step reforming of CO₂ and CH₄ to high-value liquid chemicals and fuels at room temperature via plasma-driven catalysis.

The ultra-selective hydrogenation of Furfural on PtCu supported bimetallic nanoparticles and on Pt(111) under ultra-high vacuum (2017)
Thesis
Taylor, M. The ultra-selective hydrogenation of Furfural on PtCu supported bimetallic nanoparticles and on Pt(111) under ultra-high vacuum. (Thesis). Aston University. https://hull-repository.worktribe.com/output/1356923

The selective transformation of furfural, a biomass platform molecule, was studied on Pt based heterogeneous catalysts and model single crystal surfaces. Hydrogenation reactions were carried out at pressures ranging from ultra-high vacuum to 20 bar.... Read More about The ultra-selective hydrogenation of Furfural on PtCu supported bimetallic nanoparticles and on Pt(111) under ultra-high vacuum.

Nanoparticulate Pd-Sn Compounds Supported on Metal Oxides: Synthesis, Material and Catalytic Properties (2017)
Journal Article
Ibhadon, A. O., Francesconi, M. G., & Johnston, S. K. (2017). Nanoparticulate Pd-Sn Compounds Supported on Metal Oxides: Synthesis, Material and Catalytic Properties. Chemical Engineering & Process Techniques, 3(3), Article 1044

The manufacture of chemicals requires innovation at the catalyst frontier so that processes can be developed with higher energy efficiency and increased facility of separation and recovery of products. Catalysts with high selectivity and activity con... Read More about Nanoparticulate Pd-Sn Compounds Supported on Metal Oxides: Synthesis, Material and Catalytic Properties.

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.

Application of a porous media model for the acoustic damping of perforated plate absorbers (2017)
Journal Article
Wang, J., Rubini, P., & Qin, Q. (2017). Application of a porous media model for the acoustic damping of perforated plate absorbers. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 127, 324-335. https://doi.org/10.1016/j.apacoust.2017.07.003

Perforated panel, or plate, absorbers are commonly employed to reduce sound pressure levels across a broad range of applications including the built environment, industrial installations and propulsion devices. The acoustic performance of a perforate... Read More about Application of a porous media model for the acoustic damping of perforated plate absorbers.

Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance (2017)
Journal Article
Johnston, S. K., Cherkasov, N., Perez-Barrado, E., Aho, A., Murzin, D. Y., Ibhadon, A. O., & Francesconi, M. G. (2017). Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance. Applied catalysis. A, General, 544, 40-45. https://doi.org/10.1016/j.apcata.2017.07.005

The two catalysts Pd₃Sn/TiO₂and Pd3Sn/ZnO were prepared via a one-pot procedure based on the “polyol method” with the addition of a capping agent (polyvinylpyrrolidone) to control the particle size distribution. The same procedure was used to prepare... Read More about Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance.

Controllable synthesis of zeolitic imidazolate frameworks with rod-like or delta-shaped morphologies at oil-water interface (2017)
Journal Article
Zhang, Y., Zhao, Y., Ke, X., & Zhang, L. (2017). Controllable synthesis of zeolitic imidazolate frameworks with rod-like or delta-shaped morphologies at oil-water interface. Materials letters, 206, 233-236. https://doi.org/10.1016/j.matlet.2017.07.002

Zeolitic imidazolate framework (ZIF-8) has attracted extensive application in gas adsorption, membrane separation and catalysis. It has been demonstrated that the morphology is crucial for the physical and chemical properties. In this work, ZIF-8 cry... Read More about Controllable synthesis of zeolitic imidazolate frameworks with rod-like or delta-shaped morphologies at oil-water interface.

Wheat Straw Bio-refining. Part I: Optimization of the Microwave Radiation Process with Sulphuric Acid Pre-treatment (2017)
Journal Article
Demirhan, H., Fauzi, A., Skoulou, V., Haywood, S., & Zein, S. H. (2017). Wheat Straw Bio-refining. Part I: Optimization of the Microwave Radiation Process with Sulphuric Acid Pre-treatment. Current Microwave Chemistry, 4(3), 205-218. https://doi.org/10.2174/2213335604666170719113659

Background: This study investigates the microwave-assisted acid extraction of lignin from wheat straw.

Methods: Two experimental design methods, the Central Composite Design (CCD) and the Response Surface Method (RSM) methods were used to select c... Read More about Wheat Straw Bio-refining. Part I: Optimization of the Microwave Radiation Process with Sulphuric Acid Pre-treatment.

Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation (2017)
Journal Article
Touhami, D., Zhu, Z., Balan, W. S., Janaun, J., Haywood, S., & Zein, S. (2017). Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation. Journal of Environmental Chemical Engineering, 5(3), 2388-2394. https://doi.org/10.1016/j.jece.2017.04.020

© 2017 Elsevier Ltd. Carbon-based sulphonated catalysts (CBSCs) were made from rice husk for biodiesel production. The CBSCs were prepared by microwave (MW) and conventional heating processes from the same feedstock. In both heating systems, the prep... Read More about Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation.

Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites (2017)
Journal Article
Kelly, S., Kornherr, A., Alahmadi, N. S., Betts, J. W., Francesconi, M. G., Prior, T. J., Wadhawan, J. D., Cheng, F., Francesconi, M. G., Kelly, S. M., Prior, T., Wadhawan, J., & Kornherr, A. (2017). Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites. RSC advances, 7(32), 20020-20026. https://doi.org/10.1039/c7ra00920h

© The Royal Society of Chemistry. Green synthesis is employed to prepare cobalt/cellulose nanocomposites with cubic (α-cobalt) cobalt as a main component with antibacterial and magnetic properties. An in situ reduction of aqueous solutions of cobalt... Read More about Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites.