Skip to main content

Research Repository

Advanced Search

All Outputs (88)

Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study (2021)
Journal Article
Xue, H., Dong, Z., Tian, S., Lu, S., Greenwell, H. C., Luo, P., Zhang, W., Lu, S., Wang, M., Ma, W., & Wang, Y. (2022). Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study. Journal of Petroleum Science and Engineering, 208, Article 109026. https://doi.org/10.1016/j.petrol.2021.109026

In recent years, rock pyrolysis parameters combined with a mass balance method have been used to calculate the hydrocarbon expulsion efficiency. However, due to the experimental procedure of rock pyrolysis, the residual hydrocarbon amount (S1) is und... Read More about Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study.

Preliminary Experimental Study of Methane Adsorption Capacity in Shale After Brittle Deformation Under Uniaxial Compression (2021)
Journal Article
Liang, M., Wang, Z., Zheng, G., Zhang, X., Greenwell, H. C., Zhang, K., Feng, X., Zhang, L., & Li, H. (2021). Preliminary Experimental Study of Methane Adsorption Capacity in Shale After Brittle Deformation Under Uniaxial Compression. Frontiers in Earth Science, 9, Article 542912. https://doi.org/10.3389/feart.2021.542912

This paper presents a preliminary experimental study on methane adsorption capacity in shales before and after artificial deformation. The experimental results are based on uniaxial compression and methane isothermal adsorption tests on different sha... Read More about Preliminary Experimental Study of Methane Adsorption Capacity in Shale After Brittle Deformation Under Uniaxial Compression.

Occurrence and influence of residual gas released by crush methods on pore structure in Longmaxi shale in Yangtze Plate, Southern China (2020)
Journal Article
Liang, M.-L., Wang, Z.-X., Zheng, G.-D., Christopher Greenwell, H., Li, H.-J., Zhang, L.-Y., Feng, X.-Q., & Zhang, K.-X. (2020). Occurrence and influence of residual gas released by crush methods on pore structure in Longmaxi shale in Yangtze Plate, Southern China. China geology, 3(4), https://doi.org/10.31035/cg2020070

The composition of gas released under vacuum by crushing from the gas shale of Longmaxi Formation in Upper Yangtze Plate, Southern China was systematically investigated in this study. The effect of residual gas release on pore structures was checked... Read More about Occurrence and influence of residual gas released by crush methods on pore structure in Longmaxi shale in Yangtze Plate, Southern China.

Ion-specific Interactions at Calcite-Brine Interfaces: A Nano-Scale Study of the Surface Charge Development and Preferential Binding of Polar Hydrocarbons (2020)
Journal Article
Badizad, M. H., Koleini, M. M., Greenwell, C., Ayatollahi, S., Ghazanfari, M. H., & Mohammadi, M. (2020). Ion-specific Interactions at Calcite-Brine Interfaces: A Nano-Scale Study of the Surface Charge Development and Preferential Binding of Polar Hydrocarbons. Physical Chemistry Chemical Physics, 22(48), 27999-28011. https://doi.org/10.1039/d0cp04828c

This research provides an atomic-level insight into the synergic contribution of mono- and divalent ions to interfacial characteristics of calcite surface exposed to electrolyte solution containing organic compounds. The emphasis was placed on the io... Read More about Ion-specific Interactions at Calcite-Brine Interfaces: A Nano-Scale Study of the Surface Charge Development and Preferential Binding of Polar Hydrocarbons.

Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup (2020)
Journal Article
Zhitova, E., Greenwell, H., Krzhizhanovskaya, M., Apperley, D., Pekov, I., & Yakovenchuk, V. (2020). Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup. Minerals, 10(11), Article 961. https://doi.org/10.3390/min10110961

In Situ high-temperature powder X-ray diffraction experiments were undertaken for the coarse crystalline natural layered double hydroxides (LDHs) quintinite, hydrotalcite, stichtite, and iowaite in the temperature range 25–1000 °C, with thermal analy... Read More about Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup.

Solution-state behaviour of algal mono-uronates evaluated by pure shift and compressive sampling NMR techniques (2020)
Journal Article
Rowbotham, J. S., Aguilar, J. A., Kenwright, A. M., Greenwell, H. C., & Dyer, P. W. (2020). Solution-state behaviour of algal mono-uronates evaluated by pure shift and compressive sampling NMR techniques. Carbohydrate Research, 495, Article 108087. https://doi.org/10.1016/j.carres.2020.108087

Sodium salts of the algal uronic-acids, d-mannuronic acid (HManA) and l-guluronic acid (HGulA) have been isolated and characterised in solution by nuclear magnetic resonance (NMR) spectroscopy. A suite of recently-described NMR experiments (including... Read More about Solution-state behaviour of algal mono-uronates evaluated by pure shift and compressive sampling NMR techniques.

Adsorption of phosphate by halloysite (7Å) nanotubes (HNTs) (2020)
Journal Article
Gray-Wannell, N., Holliman, P., Greenwell, H., Delbos, E., & Hillier, S. (2020). Adsorption of phosphate by halloysite (7Å) nanotubes (HNTs). Clay Minerals, 55(2), 184-193. https://doi.org/10.1180/clm.2020.24

The adsorption and retention of phosphates in soil systems is of wide environmental importance, and understanding the surface chemistry of halloysite (a common soil clay mineral) is also of prime importance in many emerging technological applications... Read More about Adsorption of phosphate by halloysite (7Å) nanotubes (HNTs).

A Deep Look into Dynamics of Saltwater Imbibition in a Calcite Nano-Channel: Temperature Impacts Capillarity Regimes (2020)
Journal Article
Badizad, M. H., Koleini, M. M., Greenwell, H. C., Ayatollahi, S., & Ghazanfari, M. H. (2020). A Deep Look into Dynamics of Saltwater Imbibition in a Calcite Nano-Channel: Temperature Impacts Capillarity Regimes. Langmuir, 36(31), 9035-9046. https://doi.org/10.1021/acs.langmuir.0c00437

This research concerns fundamentals of spontaneous transport of saltwater (1 mol.dm-3 NaCl solution) in nano-pores of calcium carbonates. A fully atomistic model was adopted to scrutinize temperature-dependence of flow regimes during solution transpo... Read More about A Deep Look into Dynamics of Saltwater Imbibition in a Calcite Nano-Channel: Temperature Impacts Capillarity Regimes.

A New Framework to Quantifying the Wetting Behaviour of Carbonate Rock Surfaces Based on the Relationship between Zeta Potential and Contact Angle (2020)
Journal Article
Rezaei Gomari, S., Amrouche, F., Santos, R. G., Greenwell, H. C., & Cubillas, P. (2020). A New Framework to Quantifying the Wetting Behaviour of Carbonate Rock Surfaces Based on the Relationship between Zeta Potential and Contact Angle. Energies, 13(4), Article 993. https://doi.org/10.3390/en13040993

This study introduces a new framework to quantify the wettability of powdered carbonate rock from existing correlations between zeta potential and contact angle. The new framework has the potential to be faster and cheaper than conventional approache... Read More about A New Framework to Quantifying the Wetting Behaviour of Carbonate Rock Surfaces Based on the Relationship between Zeta Potential and Contact Angle.

Adding Value to Waste Minerals in a Circular Economy Framework: Ochre-Derived Layered Double Hydroxide Catalysts in Fatty Acid Ketonisation (2019)
Journal Article
Perera-Solis, D. D., Pimlott, M., Fidment, E., Whiting, A., & Greenwell, H. C. (2019). Adding Value to Waste Minerals in a Circular Economy Framework: Ochre-Derived Layered Double Hydroxide Catalysts in Fatty Acid Ketonisation. Minerals, 9(11), Article 681. https://doi.org/10.3390/min9110681

Mineral carbonation is known to be among the most efficient ways to reduce the anthropogenic emissions of carbon dioxide. Serpentine minerals (Mg3Si2O5(OH)4), have shown great potential for carbonation. A way to improve yield is to thermally activate... Read More about Adding Value to Waste Minerals in a Circular Economy Framework: Ochre-Derived Layered Double Hydroxide Catalysts in Fatty Acid Ketonisation.

Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts (2019)
Journal Article
Bocanegra, N. R., Rivera De la Rosa, J., Lucio Ortiz, C. J., González, P. C., Greenwell, C., Badillo Almaráz, V. E., Sandoval Rangel, L., Alcántar-Vázquez, B., Rodríguez-González, V., & de Haro del Río, D. A. (2021). Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts. Catalysis Today, 360, 2-11. https://doi.org/10.1016/j.cattod.2019.11.032

We present this study on FAU-type zeolites were prepared varying the Si/Al ratio (4, 5 and 6) and crystallization time (4, 6 and 8 h) to produce a highly pure and homogeneous material with enhanced surface area values. Bimetallic Pd-Ru and Pt-Ru (0.5... Read More about Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts.

Reduced to hierarchy: carbon filament supported mixed metal oxide nanoparticles (2019)
Journal Article
Manohara, G. V., Whiting, A., & Greenwell, C. (2019). Reduced to hierarchy: carbon filament supported mixed metal oxide nanoparticles. ACS Omega, 4(23), 20230-20236. https://doi.org/10.1021/acsomega.9b02534

We describe a one-pot synthesis method for carbon filament-supported mixed metal oxide nanoparticles. The thermal intracrystalline reaction of adamantanecarboxylate ions confined inside interlayer galleries of layered double hydroxide materials under... Read More about Reduced to hierarchy: carbon filament supported mixed metal oxide nanoparticles.

Using Ca-Fe layered double hydroxide transformation to optimise phosphate removal from waste waters (2019)
Journal Article
Al Jaberi, M., Mallet, M., Greenwell, H. C., Abdelmoula, M., & Ruby, C. (2019). Using Ca-Fe layered double hydroxide transformation to optimise phosphate removal from waste waters. Applied Clay Science, 182, Article 105281. https://doi.org/10.1016/j.clay.2019.105281

Single phase CaFe layered double hydroxide (LDH) minerals containing Cl− species in the interlayer was synthesized by coprecipitation with a CaII: FeIII ratio of 2: 1. In both phosphate (PO4) free water and at low aqueous PO4 concentration, the LDH w... Read More about Using Ca-Fe layered double hydroxide transformation to optimise phosphate removal from waste waters.

Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation (2019)
Journal Article
Abedi, S., Astaraei, F. R., Ghobadian, B., Tavakoli, O., Jalili, H., Greenwell, H. C., Cummins, I., & Chivasa, S. (2019). Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation. Scientific Reports, 9, Article 2511. https://doi.org/10.1038/s41598-019-38997-7

To conserve freshwater resources, domestic and industrial wastewater is recycled. Algal systems have emerged as an efficient, low-cost option for treatment (phycoremediation) of nutrient-rich wastewater and environmental protection. However, industri... Read More about Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation.

Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts (2018)
Journal Article
Smith, B., Li, L., Perera-Solis, D., Gildea, L., Zholobenko, V., Dyer, P., & Greenwell, H. C. (2018). Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts. Inorganics, 6(4), Article 121. https://doi.org/10.3390/inorganics6040121

A sustainable route to ketones is described where stearone is produced via ketonic decarboxylation of stearic acid mediated by solid base catalysts in yields of up to 97%, at 250 °C. A range of Mg/Al layered double hydroxide (LDH) and mixed metal oxi... Read More about Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts.

Serpentinization: Connecting geochemistry, ancient metabolism and industrial hydrogenation (2018)
Journal Article
Preiner, M., Xavier, J. C., Sousa, F. L., Zimorski, V., Neubeck, A., Lang, S. Q., Greenwell, C., Kleinermanns, K., Tüysüz, H., McCollom, T. M., Holm, N. G., & Martin, W. F. (2018). Serpentinization: Connecting geochemistry, ancient metabolism and industrial hydrogenation. Life, 8(4), Article 41. https://doi.org/10.3390/life8040041

Rock–water–carbon interactions germane to serpentinization in hydrothermal vents have occurred for over 4 billion years, ever since there was liquid water on Earth. Serpentinization converts iron(II) containing minerals and water to magnetite (Fe3O4)... Read More about Serpentinization: Connecting geochemistry, ancient metabolism and industrial hydrogenation.

Crystal chemistry of natural layered double hydroxides. 5. Single-crystal structure refinement of hydrotalcite, [Mg6Al2(OH)16](CO3)(H2O)4 (2018)
Journal Article
Zhitova, E., Krivovichev, S., Pekov, I., & Greenwell, H. (2019). Crystal chemistry of natural layered double hydroxides. 5. Single-crystal structure refinement of hydrotalcite, [Mg6Al2(OH)16](CO3)(H2O)4. Mineralogical Magazine, 83(2), 269-280. https://doi.org/10.1180/mgm.2018.145

Hydrotalcite, ideally [Mg6Al2(OH)16](CO3)(H2O)4, was studied in samples from Dypingdal, Snarum, Norway (3R and 2H), Zelentsovskaya pit (2H) and Praskovie–Evgenievskaya pit (2H) (both Southern Urals, Russia), Talnakh, Siberia, Russia (3R), Khibiny, Ko... Read More about Crystal chemistry of natural layered double hydroxides. 5. Single-crystal structure refinement of hydrotalcite, [Mg6Al2(OH)16](CO3)(H2O)4.

Peptide Formation on Layered Mineral Surfaces: The Key Role of Brucite-like Minerals on the Enhanced Formation of Alanine Dipeptides (2018)
Journal Article
Gregoire, B., Greenwell, H. C., & Fraser, D. G. (2018). Peptide Formation on Layered Mineral Surfaces: The Key Role of Brucite-like Minerals on the Enhanced Formation of Alanine Dipeptides. ACS Earth and Space Chemistry, 2(8), 852-862. https://doi.org/10.1021/acsearthspacechem.8b00052

Alkaline hydrothermal vent environments have gained much attention as potential sites for abiotic synthesis of a range of organic molecules. However the key process of peptide formation has generally been undertaken at lower pH, and using dissolved c... Read More about Peptide Formation on Layered Mineral Surfaces: The Key Role of Brucite-like Minerals on the Enhanced Formation of Alanine Dipeptides.

Biodiesel production via trans-esterification using Pseudomonas cepacia immobilized on cellulosic polyurethane (2018)
Journal Article
Li, L., Dyer, P. W., & Greenwell, H. C. (2018). Biodiesel production via trans-esterification using Pseudomonas cepacia immobilized on cellulosic polyurethane. ACS Omega, 3(6), 6804-6811. https://doi.org/10.1021/acsomega.8b00110

In this work, Pseudomonas cepacia lipase immobilized on cellulosic polyurethane was used as a catalyst for biodiesel production via trans-esterification reactions in order to provide cost-effective methods of enzyme recycling. The efficacy of the imm... Read More about Biodiesel production via trans-esterification using Pseudomonas cepacia immobilized on cellulosic polyurethane.