Kinetics and mechanism of the oxidation of glucose on a platinum electrode

Journal Article · Tue May 01 04:00:00 EDT 1984 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:5186309

Nikolaeva, N N; Khazova, O A; Vasil'ev, Y B

This article examines the oxidation of glucose on platinum electrodes in a wide range of pH by the method of slow potentiodynamic curves and static polarization curves. The first region of oxidation is observed only on the potentiodynamic curve and is distorted by the currents of ionization of adsorbed hydrogen. The second region of electrooxidation of glucose in the region of potentials 0.5-0.9 V is the region of a steady-state process of electrooxidation, when there is a removal of carbon containing particles, formed in adsorption and dehydrogenation of the glucose molecule, from the electrode surface. The adsorption curves show that the increase in the current with increasing concentration continues until the coverage of the surface by chemisorbed particles increases. It is demonstrated that the mechanism of glucose oxidation has much in common with the mechanism proposed earlier for methanol, formaldehyde, and other organic substances.

• Research Organization: Inst. of Electrochemistry, Academy of Sciences
• OSTI ID: 5186309
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 19:11; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400400* -- Electrochemistry
ADSORPTION
ALCOHOLS
ALDEHYDES
CARBOHYDRATES
CARBON
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
CURRENTS
DEHYDROGENATION
DIAGRAMS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
FORMALDEHYDE
GLUCOSE
HEXOSES
HYDROGEN
HYDROXY COMPOUNDS
IONIZATION
KINETICS
METALS
METHANOL
MONOSACCHARIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
PARTICLES
PH VALUE
PLATINUM
PLATINUM METALS
POLARIZATION
POTENTIOMETRY
QUANTITY RATIO
REACTION KINETICS
SACCHARIDES
SORPTION
STEADY-STATE CONDITIONS
TITRATION
TRANSITION ELEMENTS