Outputs (252)

FTIR study of zeolites: the nature, concentration and accessibility of the acid sites (2020)
Thesis
Antunes da Silva Freitas, C. M. (2020). FTIR study of zeolites: the nature, concentration and accessibility of the acid sites. (Thesis). Keele University

Zeolites represent one of the most important groups of industrial heterogeneous catalysts with large-scale applications in refining, petrochemistry and increasing potential in environmental catalysis and synthesis of fine chemicals. This broad range... Read More about FTIR study of zeolites: the nature, concentration and accessibility of the acid sites.

An investigation into the detection of fraud during poultry egg production: a metabonomic approach using liquid chromatography - mass spectrometry (2020)
Thesis
Johnson, A. E. (2020). An investigation into the detection of fraud during poultry egg production: a metabonomic approach using liquid chromatography - mass spectrometry. (Thesis). Keele University

Food fraud is becoming an increasingly difficult challenge, with the ongoing global expansion of food supply chains. Previously developed methods have been successful in the detection of some instances of food fraud, however they struggle to detect m... Read More about An investigation into the detection of fraud during poultry egg production: a metabonomic approach using liquid chromatography - mass spectrometry.

Pre-main-sequence populations and young stellar variability in the Large Magellanic Cloud (2020)
Thesis
Zivkov, V. (2020). Pre-main-sequence populations and young stellar variability in the Large Magellanic Cloud. (Thesis). Keele University

Detailed studies of intermediate- and low-mass pre-main-sequence (PMS) stars outside the Galaxy have so far been conducted only for small targeted regions harbouring known star formation complexes. This work presents a comprehensive analysis of the P... Read More about Pre-main-sequence populations and young stellar variability in the Large Magellanic Cloud.

Synthesis and characterisation of high silica zeolites for methane reforming (2020)
Thesis
Woodfine, S. E. (2020). Synthesis and characterisation of high silica zeolites for methane reforming. (Thesis). Keele University

In this study, the ability of the MTBA cation to effectively direct the formation of the nanosized MFI framework was present for the first time. Two nanosized materials from different SDAs were synthesised and investigated with a variety of different... Read More about Synthesis and characterisation of high silica zeolites for methane reforming.

Dynamics of outflows driven by winds from supermassive black holes (2019)
Thesis
Green, L. (2019). Dynamics of outflows driven by winds from supermassive black holes. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/415217

Feedback is a key element of galaxy evolution, and the accretion of gas onto a central supermassive black hole (SMBH) is an important source of feedback. Modelling the energy released as an optically thick wind (with speed vw) allows observable relat... Read More about Dynamics of outflows driven by winds from supermassive black holes.

Nanostructured materials as catalysts for the production of green fuels and platform chemicals (2019)
Thesis
Al-Ani, A. A. T. (2019). Nanostructured materials as catalysts for the production of green fuels and platform chemicals. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/414937

A range of nano-structured materials were prepared and utilised in this work as catalysts for the production of biofuels and platform chemicals. Titanosilicate (ETS-10), Linde type-zeolite A, faujasites (FAU), zeolite MAP and sepiolite, were synthesi... Read More about Nanostructured materials as catalysts for the production of green fuels and platform chemicals.

X-ray spectral variability of disk winds in a sample of local active galactic nuclei (2019)
Thesis
Costa, M. T. (2019). X-ray spectral variability of disk winds in a sample of local active galactic nuclei. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/414944

In this thesis I will present the culmination of my research into the phenomenon of AGN winds using several X-ray telescopes (Suzaku, XMM-Newton and NuSTAR); I will do this primarily through the use of radiative transfer models (Sim et al. 2010). I w... Read More about X-ray spectral variability of disk winds in a sample of local active galactic nuclei.

Detection and characterisation of stellar companions to transiting extrasolar planets through high resolution imaging (2019)
Thesis
Evans, D. F. (2019). Detection and characterisation of stellar companions to transiting extrasolar planets through high resolution imaging. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/413806

Since the discovery over two decades ago of the first `hot Jupiter', there has been persistent debate regarding the formation and origins of this class of planets. Some of the many `migration' theories for hot Jupiters suggest that these planets form... Read More about Detection and characterisation of stellar companions to transiting extrasolar planets through high resolution imaging.

A carbon deposition and sulphur poisoning study of new pyrochlore catalysts for methane reforming (2019)
Thesis
Alfatlawi, Z. K. (2019). A carbon deposition and sulphur poisoning study of new pyrochlore catalysts for methane reforming. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/413837

Reforming of landfill gases for the production of syngas that leads to the generation of heat or electricity is a very promising pathway considering the increasing price of oil. The dry reforming technique is a very interesting approach to reduce the... Read More about A carbon deposition and sulphur poisoning study of new pyrochlore catalysts for methane reforming.

Fundamental parameters of subgiant stars in detached eclipsing binary systems (2019)
Thesis
Evans, J. A. (2019). Fundamental parameters of subgiant stars in detached eclipsing binary systems. (Thesis). Keele University. Retrieved from https://keele-repository.worktribe.com/output/413063

Detailed studies of stars in long-period, detached eclipsing binary systems remain one of the best ways to test stellar evolutionary models. With so many detections of planets outside of the solar system, research has turned to the characterisation o... Read More about Fundamental parameters of subgiant stars in detached eclipsing binary systems.