Adsorption characteristics of anthraquinone-2-carboxylic acid on gold

Article Abstract:

The adsorption rate of anthraquinone-2-carboxylic acid (AQ-2-COOH) on gold was, however, much slower than that on silver as well as the adsorption strength to gold being considerably weaker than to silver. Reflection-adsorption infrared (RAIR) spectral data revealed that AQ-2-COOH was chemisorbed on gold as carboxylate, after deprotonation, with its two oxygen atoms bound symmetrically to the metal substrate.

Electric properties, Quinone, Quinones, Carboxylic acids, Chemical properties

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Adsorption characteristics of 1,3-propanedithiol on gold: surface-enhanced Raman scattering and ellipsometry study

Article Abstract:

The adsorption behavior of 1,3-propanedithiol (1,3-PDT) on a colloidal gold surface is investigated by means of surface-enhanced Raman scattering (SERS). The study discuses that a separate ellipsometry measurement revealed that a best one and one-half layered film could be assembled on gold in polar and protic solvents while up to three layers were assembled on gold in n-hexane solution of 1,3-PDT.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), All Other Basic Organic Chemical Manufacturing, Industrial Organic Chemicals, Gold, Mercaptans, Analysis, Raman effect, Thiols, Propane

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Oxygen adsorption on the (110)-oriented diamond surface

Article Abstract:

The interaction of oxygen with a diamond (110)-oriented surface is investigated y using multiple internal reflection infrared spectroscopy (MIRIS) and temperature-programmed desorption (TPD). The observation implies that the low-temperature adsorption sites were etched away, thus favoring the additional adsorption of oxygen sites that are stable at high temperature.

Gem Diamonds, All Other Nonmetallic Mineral Mining, Miscellaneous nonmetallic minerals, Observations, Diamonds, Thermal properties, Adsorption, Diamond crystals

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