Formation and characterization of aromatic selenol and thiol monolayers on gold: in-situIR studies and electrochemical measurements

Literature Information

Publication Date 2004-02-12
DOI 10.1039/B315034H
Impact Factor 3.676
Authors

Yukari Sato, Fumio Mizutani


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Abstract

Adsorption processes and electrochemical properties of benzeneselenol and benzenethiol on gold electrodes were investigated by surface-enhanced IR absorption spectroscopy (SEIRAS) and electrochemical measurements. From the IR spectroscopic measurements, it was confirmed that benzeneselenol molecules adsorbed on the gold surface as benzeneselenolate–Au. SEIRAS measurements revealed that benzeneselenol took a much longer time to adsorb on a gold surface than benzenethiol. Electrochemical reductive desorption of these monolayers in alkaline solution proved that benzeneselenoate chemisorbed on gold surfaces were more stable compared to benzenethiolate, since the reduction peak potential of benzeneselenolate shifted to more than 200 mV negative potential than that of benzenethiolate. The total amounts of adsorbed benzeneselenol molecules were smaller than the case of benzenethiol.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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