Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 12, Issue 8, Pages 1982-1990Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b924985k
Keywords
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Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/D501229/1, EP/D073014/1]
- Engineering and Physical Sciences Research Council [EP/D501229/1, EP/D073014/1] Funding Source: researchfish
- EPSRC [EP/D073014/1, EP/D501229/1] Funding Source: UKRI
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Ultra high vacuum-spectroelectrochemistry was used to investigate the electrochemically generated Cu species in the ionic liquid (N-methylacetate)-4-picolinium bis(trisfluoromethylsulfonyl)imide, [MAP][Tf2N]. The diffusion of Cu+ across the surface of the ionic liquid was monitored in situ by X-ray photoelectron spectroscopy (XPS). A numerical procedure was developed to simulate the surface process from which, the apparent diffusion coefficient of Cu+ across the surface is estimated to be 3.5 x 10(-5) cm(2) s(-1). Bulk diffusion process of Cu+ in [MAP][Tf2N] was investigated ex situ for comparison with the surface process.
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