Fully Funded EPSRC DTP Funded PhD Scholarship: The effect of rotational polarisation on gas-surface reactivity

4 weeks ago

Swansea, United Kingdom Swansea University Full time

Funding provider(s): EPSRC DTP

Subject areas: Molecular beams, Surface science, Quantum-state resolved collisions

Project start dates:

1 January 2025 (Enrolment open from mid-December)

1 April 2025 (Enrolment open from mid–March) 

Supervisors: Dr Helen Chadwick and Prof. Gil Alexandrowicz

Aligned programme of study: PhD in Chemistry

Mode of study: Full-time

Project description:

Hydrogen is the most abundant molecule in the universe, and its interaction with surfaces plays a key role in a huge range of processes, from star formation to the safe storage of rocket fuel, to industrial catalysis and green energy production. The aim of this PhD project is to study hydrogen colliding with surfaces at a fundamental molecular level to gain unprecedented insight into the role that rotations play in gas-surface collisions. 

The Surface Dynamics team, which includes researchers with both physics and chemistry backgrounds, has developed a Magnetic Molecular Interferometer (MMI) apparatus which can be used to control and manipulate the rotational orientation projection states of hydrogen molecules, which can classically be considered to correspond to whether the molecules are preferentially rotating like a helicopter or a cartwheel before they collide with the surface. The PhD project, which forms part of a Future Leaders Fellowship project (MR/X03609X/1), will explore whether changing the rotational orientation projection state of the H2 molecule affects the probability that energy is transferred between the molecule and the surface as well as the reactivity of the H2 with the surface.   

This project will involve using and further developing both the experimental and data analysis methods that are currently used within the research team. The student will learn how to use the MMI apparatus, gaining knowledge of, for example, molecular and atomic beams, ultra-high vacuum systems, cryogenic technologies and a range of measurement and surface science techniques. They will also analyse the experimental data, developing techniques to extract information about the rotational orientation dependence of the gas-surface reaction, as well as performing numerical simulations to determine how best to perform the measurements to maximise the information that can be obtained.

£19,237 annual stipend