Published April 2008 | Version v1
Journal article Metadata-only

Acid-base properties and chemical composition of the surface of the InSb-ZnTe system

Creators

  • 1. Omskij Gosudarstvennyj Tekhnicheskij Univ., Omsk (Russian Federation)

Description

The acid-base properties and chemical composition of the surface of solid solutions and binary components of the InSb-ZnTe system were studied by the hydrolytic adsorption, nonaqueous conductometric titration, mechanochemistry, IR spectroscopy, and mass spectrometry methods. The strength, nature, and concentration of acid centers were determined. Changes in the concentration of acid centers caused by surface exposure to CO and changes in the composition of the system were also studied. The mechanism of acid-base interactions was established. The chemical composition of the surface of system components exposed to air included adsorbed H2O molecules, OH- groups, hydrocarbon and oxo carbon compounds, and the products of surface atom oxidation. After thermal treatment in a vacuum, the composition of the surface approached the stoichiometric composition

Abstract (Russian)

Исследованы кислотно-основные свойства и химический состав поверхности твердых растворов и бинарных компонентов системы InSb-ZnTe методами гидролитической адсорбции, неводного кондуктометрического титрования, механохимии, ИК- и масс-спектроскопии. Определены сила, природа, концентрация кислотных центров, изменение последней при экспонировании в СО и изменении состава системы. Установлен механизм кислотно-основных взаимодействий. Химический состав поверхности компонентов системы, экспонированных на воздухе, представлен адсорбированными молекулами Н2О, группами ОН-, углеводородными и углекислородными соединениями и продуктами окисления поверхностных атомов. Установлено, что после термической вакуумной обработки состав поверхности приближается к стехиометрическому

Additional details

Additional titles

Original title (Russian)
Кислотно-основные свойства и химический состав поверхности системы InSb-ZnTe

Publishing Information

Journal Title
Zhurnal Fizicheskoj Khimii
Journal Volume
82
Journal Issue
4
Journal Page Range
p. 732-738
ISSN
0044-4537
CODEN
ZFKHA9

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39119814
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADSORPTION; AIR; BASES; CARBON MONOXIDE; CHEMICAL COMPOSITION; CHEMICAL PROPERTIES; CHEMICAL REACTION KINETICS; CONTROLLED ATMOSPHERES; FILMS; HYDROCARBONS; INDIUM ANTIMONIDES; INORGANIC ACIDS; POWDERS; SOLID SOLUTIONS; SURFACE PROPERTIES; ZINC TELLURIDES
Descriptors DEC
ANTIMONIDES; ANTIMONY COMPOUNDS; ATMOSPHERES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DISPERSIONS; FLUIDS; GASES; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INDIUM COMPOUNDS; INORGANIC COMPOUNDS; KINETICS; MIXTURES; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PNICTIDES; REACTION KINETICS; SOLUTIONS; SORPTION; TELLURIDES; TELLURIUM COMPOUNDS; ZINC COMPOUNDS

Optional Information

Notes
20 refs., 6 figs., 1 tab.