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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;
  • and 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

Adsorption of alcohols and hydrocarbons on nonstoichiometric cementite{010} surfaces.
D Muñoz Ramo, SJ Jenkins
– Physical chemistry chemical physics : PCCP
(2018)
20,
14133
Diophantine Approach to the Classification of Two-Dimensional Lattices: Surfaces of Face-Centered Cubic Materials.
SJ Jenkins
– Langmuir
(2018)
34,
4095
Infrared spectroscopy of ammonia on iron: Adsorption, synthesis, and the influence of oxygen
P Iyngaran, DC Madden, DA King, SJ Jenkins
– Journal of Physical Chemistry C
(2017)
121,
24594
Symmetry and Structure of Cubic Semiconductor Surfaces
SJ Jenkins
– Langmuir
(2017)
33,
12820
Increased thermal stability of activated N2 adsorbed on K-promoted Ni{110}.
T Liu, I Temprano, SJ Jenkins
– Physical chemistry chemical physics : PCCP
(2017)
19,
21848
Energy landscapes and dynamics of glycine on Cu(110).
M Sacchi, DJ Wales, SJ Jenkins
– Physical chemistry chemical physics : PCCP
(2017)
19,
16600
Adsorption of atmospheric gases on cementite {010} surfaces
D Muñoz Ramo, SJ Jenkins
– The Journal of chemical physics
(2017)
146,
204703
Activity of iron pyrite towards low-temperature ammonia production
I Temprano, T Liu, SJ Jenkins
– Catalysis Today
(2017)
286,
101
Dipole-Moment Reversal in a Polar Organic Monolayer Probed by Sum and Difference Frequency Spectroscopy
N García Rey, M Sacchi, SJ Jenkins, H Arnolds
– Journal of Physical Chemistry C
(2017)
121,
6692
Mass Transport in Surface Diffusion of van der Waals Bonded Systems: Boosted by Rotations?
H Hedgeland, M Sacchi, P Singh, AJ McIntosh, AP Jardine, G Alexandrowicz, DJ Ward, SJ Jenkins, W Allison, J Ellis
– Journal of Physical Chemistry Letters
(2016)
7,
4819
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Research Group

Research Interest Groups

Telephone number

01223 336502

Email address

sjj24@cam.ac.uk