All Outputs (11)

Morphological features of halloysite nanotubes as revealed by various microscopies (2023)
Journal Article
Gray-Wannell, N., Cubillas, P., Aslam, Z., Holliman, P. J., Greenwell, H. C., Brydson, R., Delbos, E., Strachan, L.-J., Fuller, M., & Hillier, S. (2023). Morphological features of halloysite nanotubes as revealed by various microscopies. Clay Minerals, 58(4), 395-407. https://doi.org/10.1180/clm.2023.37

Nine halloysite nanotubes (HNTs) have been examined using scanning electron microscopy (SEM), atomic force microscopy (AFM) and (cross-sectional) transmission electron microscopy (TEM) to evaluate details of their external and internal morphologies.... Read More about Morphological features of halloysite nanotubes as revealed by various microscopies.

Geomechanical characterisation of organic-rich calcareous shale using AFM and nanoindentation (2020)
Journal Article
Graham, S., Rouainia, M., Aplin, A., Cubillas, P., Fender, T., & Armitage, P. (2021). Geomechanical characterisation of organic-rich calcareous shale using AFM and nanoindentation. Rock Mechanics and Rock Engineering, 54, 303-320. https://doi.org/10.1007/s00603-020-02261-6

The geomechanical integrity of shale overburden is a highly significant geological risk factor for a range of engineering and energy-related applications including CO2 storage and unconventional hydrocarbon production. This paper aims to provide a co... Read More about Geomechanical characterisation of organic-rich calcareous shale using AFM and nanoindentation.

Chemical Force Microscopy Study on the Interactions of COOH Functional Groups with Kaolinite Surfaces: Implications for Enhanced Oil Recovery (2017)
Journal Article
Santha, N., Cubillas, P., Saw, A., Brooksbank, H., & Greenwell, H. C. (2017). Chemical Force Microscopy Study on the Interactions of COOH Functional Groups with Kaolinite Surfaces: Implications for Enhanced Oil Recovery. Minerals, 7(12), Article 250. https://doi.org/10.3390/min7120250

Clay–oil interactions play a critical role in determining the wettability of sandstone oil reservoirs, which, in turn, governs the effectiveness of enhanced oil recovery methods. In this study, we have measured the adhesion between –COOH functional g... Read More about Chemical Force Microscopy Study on the Interactions of COOH Functional Groups with Kaolinite Surfaces: Implications for Enhanced Oil Recovery.

Predicting crystal growth via a unified kinetic three-dimensional partition model (2017)
Journal Article
Anderson, M. W., Gebbie-Rayet, J. T., Hill, A. R., Farida, N., Attfield, M. P., Cubillas, P., …Gale, J. D. (2017). Predicting crystal growth via a unified kinetic three-dimensional partition model. Nature, 544(7651), 456-459. https://doi.org/10.1038/nature21684

Understanding and predicting crystal growth is fundamental to the control of functionality in modern materials. Despite investigations for more than one hundred years1, 2, 3, 4, 5, it is only recently that the molecular intricacies of these processes... Read More about Predicting crystal growth via a unified kinetic three-dimensional partition model.

Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods (2017)
Journal Article
Goodarzi, M., Rouainia, M., Aplin, A., Cubillas, P., & de Block, M. (2017). Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods. Geophysical prospecting, 65(6), 1597-1614. https://doi.org/10.1111/1365-2478.12475

Determination of the mechanical response of shales through experimental procedures is a practical challenge due to their heterogeneity and the practical difficulties of retrieving good-quality core samples. Here, we investigate the possibility of usi... Read More about Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods.

Multi-technique approach to the petrophysical characterization of Berea sandstone core plugs (Cleveland Quarries, USA) (2016)
Journal Article
Kareem, R., Cubillas, P., Gluyas, J., Bowen, L., Hillier, S., & Greenwell, H. (2017). Multi-technique approach to the petrophysical characterization of Berea sandstone core plugs (Cleveland Quarries, USA). Journal of Petroleum Science and Engineering, 149, 436-455. https://doi.org/10.1016/j.petrol.2016.09.029

Berea sandstone has been used by the petroleum industry as a representative model siliciclastic rock for a number of years. However, only incomplete data has been reported in the literature regarding its petrographic, geochemical, and petrophysical p... Read More about Multi-technique approach to the petrophysical characterization of Berea sandstone core plugs (Cleveland Quarries, USA).

Strontium incorporation during calcite growth: Implications for chemical mapping using friction force microscopy (2015)
Journal Article
Cubillas, P., Hu, X., & Higgins, S. R. (2015). Strontium incorporation during calcite growth: Implications for chemical mapping using friction force microscopy. Chemical Geology, 411, 274-282. https://doi.org/10.1016/j.chemgeo.2015.07.013

Sr partitioning on calcite crystals growing from Ca2 +–Sr2 +–CO32 − solutions was studied by means of friction force microscopy (FFM). Experiments were performed with various Sr2 +(aq)/Ca2 +(aq) concentration ratios and total Sr2 +(aq) concentration... Read More about Strontium incorporation during calcite growth: Implications for chemical mapping using friction force microscopy.

Molecular Dynamic Simulations of Montmorillonite-Organic Interactions under Varying Salinity: An Insight into Enhanced Oil Recovery (2015)
Journal Article
Underwood, T., Erastova, V., Cubillas, P., & Greenwell, H. (2015). Molecular Dynamic Simulations of Montmorillonite-Organic Interactions under Varying Salinity: An Insight into Enhanced Oil Recovery. Journal of Physical Chemistry C, 119(13), 7282-7294. https://doi.org/10.1021/acs.jpcc.5b00555

Enhanced oil recovery is becoming commonplace in order to maximize recovery from oil fields. One of these methods, low-salinity enhanced oil recovery (EOR), has shown promise; however, the fundamental underlying chemistry requires elucidating. Here,... Read More about Molecular Dynamic Simulations of Montmorillonite-Organic Interactions under Varying Salinity: An Insight into Enhanced Oil Recovery.

Crystal growth of MOF-5 using secondary building units studied by in situ atomic force microscopy (2014)
Journal Article
Cubillas, P., Etherington, K., Anderson, M. W., & Attfield, M. P. (2014). Crystal growth of MOF-5 using secondary building units studied by in situ atomic force microscopy. CrystEngComm, 16(42), 9834-9841. https://doi.org/10.1039/c4ce01710b

Crystal growth of the metal–organic framework, MOF-5, using basic zinc benzoate, [Zn4O(O2CC6H5)6], was studied in real time using atomic force microscopy. The two-dimensional nuclei involved in layer growth were found to form by a two-step process wh... Read More about Crystal growth of MOF-5 using secondary building units studied by in situ atomic force microscopy.

Atomic Force Microscopy and High Resolution Scanning Electron Microscopy Investigation of Zeolite A Crystal Growth. Part 2: In Presence of Organic Additives (2014)
Journal Article
Cubillas, P., Gebbie, J. T., Stevens, S. M., Blake, N., Umemura, A., Terasaki, O., & Anderson, M. W. (2014). Atomic Force Microscopy and High Resolution Scanning Electron Microscopy Investigation of Zeolite A Crystal Growth. Part 2: In Presence of Organic Additives. Journal of Physical Chemistry C, 118(40), 23092-23099. https://doi.org/10.1021/jp506222y

The nanoscopic details of the crystal growth of zeolite A in the presence of the organic modifiers diethanolmaine (DEA) and triethanolamine (TEA) has been determined using a combination of atomic force microscopy (AFM) and high-resolution scanning el... Read More about Atomic Force Microscopy and High Resolution Scanning Electron Microscopy Investigation of Zeolite A Crystal Growth. Part 2: In Presence of Organic Additives.

Friction characteristics of Cd-rich carbonate films on calcite surfaces: implications for compositional differentiation at the nanometer scale (2009)
Journal Article
Cubillas, P., & Higgins, S. (2009). Friction characteristics of Cd-rich carbonate films on calcite surfaces: implications for compositional differentiation at the nanometer scale. Geochemical Transactions, 10, Article 7. https://doi.org/10.1186/1467-4866-10-7

Lateral Force Microscopy (LFM) studies were carried out on cleaved calcite sections in contact with solutions supersaturated with respect to otavite (CdCO3) or calcite-otavite solid solutions (SS) as a means to examine the potential for future applic... Read More about Friction characteristics of Cd-rich carbonate films on calcite surfaces: implications for compositional differentiation at the nanometer scale.