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Dr Stephen Jenkins

Portrait of sjj24

Our research is focussed upon the application of first-principles theory and ultra-high-vacuum single-crystal experiments to problems in surface chemistry and catalysis. We make use of fibre-optic low-energy electron diffraction (FO-LEED) to obtain structural information, reflection absorption infra-red spectroscopy (RAIRS) to obtain vibrational information, single-crystal adsorption calorimetry (SCAC) to obtain energetic information, supersonic molecular beams (SMB) to obtain kinetic information, and low- temperature scanning tunnelling microscopy (LT-STM) to obtain morphological, topographic and electronic information about surfaces and the molecules that adsorb, diffuse and react upon them. Density functional theory (DFT) provides a framework within which to calculate comparable data, which aids in the interpretation of our experimental work.

Our work is concentrated within four main research themes: . Complex interadsorbate interactions . Nanoscale surface phenomena . Chiral surface systems . Tuning reactivity and catalysis

Individual research projects are chosen to reflect these themes, lending coherence to a diverse range of topical studies. Thus, by way of example, our work on the adsorption of alanine on Cu{531} addresses issues relating to the formation of complex hydrogen-bonded adsorbate networks, whilst also shedding light on the interaction of chiral molecules with an intrinsically chiral metal surface; moreover, certain adsorbates can cause this unstable surface to break up into nanoscale facets, whose catalytic properties will differ markedly from those of the notionally ideal surface. Tackling these interlinked aspects of surface science requires a flexible approach, making use of multiple experimental techniques complemented by a rigorously benchmarked theoretical methodology.

Publications

Co-adsorption of water and glycine on Cu{110}
M Sacchi, SJ Jenkins – Physical Chemistry Chemical Physics (2014) 16, 6101
Infrared spectroscopy of ammonia on iron: Thermal stability and the influence of potassium
P Iyngaran, DC Madden, DA King, SJ Jenkins – Journal of Physical Chemistry C (2014) 118, 12184
Combined Diffraction and Density Functional Theory Calculations of Halogen-Bonded Cocrystal Monolayers
M Sacchi, AY Brewer, SJ Jenkins, JE Parker, T Friščić, SM Clarke – Langmuir (2013) 29, 14903
Non-dissociative activation of chemisorbed dinitrogen on Ni{110} by co-adsorbed lithium
T Liu, I Temprano, SJ Jenkins, DA King – The Journal of chemical physics (2013) 139, 184708
Left foot, right foot, other foot: Glycine and alanine on Cu{311}
DC Madden, I Temprano, M Sacchi, SM Driver, DA King, SJ Jenkins – ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY (2013) 245
Quantum influences in the diffusive motion of pyrrole on Cu(111).
BA Lechner, H Hedgeland, J Ellis, W Allison, M Sacchi, SJ Jenkins, BJ Hinch – Angew Chem Int Ed Engl (2013) 52, 5085
Single-crystal adsorption calorimetry and density functional theory of CO chemisorption on fcc Co{110}.
K Liao, V Fiorin, DS Gunn, SJ Jenkins, DA King – Physical chemistry chemical physics : PCCP (2013) 15, 4059
Jumping, rotating, and flapping: The atomic-scale motion of thiophene on Cu(111)
BAJ Lechner, M Sacchi, AP Jardine, H Hedgeland, W Allison, J Ellis, SJ Jenkins, PC Dastoor, BJ Hinch – Journal of Physical Chemistry Letters (2013) 4, 1953
Low temperature synthesis of NH3 from atomic N and H at the surfaces of FeS2{100} crystals
T Liu, I Temprano, SJ Jenkins, DA King, SM Driver – Journal of Physical Chemistry C (2013) 117, 10990
Structure and stress of Re( 11(2)over-bar1); chiral terraces at a racemic surface
HA Etman, G Held, SJ Jenkins, RA Bennett – Physical chemistry chemical physics : PCCP (2013) 15, 20823
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Research Interest Groups

Telephone number

01223 336502

Email address

sjj24@cam.ac.uk