Published July 2002 | Version v1
Journal article Metadata-only

Preparation of spherical oxide particles by microwave hydrolysis of Zr(IV), Ce(IV), Ni(II) salts solutions

Creators

  • 1. Moskovskij Gosudarstvennyj Univ. im. M.V. Lomonosova, Moscow (Russian Federation)
  • 2. Inst. Obshchej i Neorganicheskoj Khimii im. N.S. Kurnakova RAN, Moscow (Russian Federation)

Description

Influence of microwave hydrolysis parameters of concentrated water and water-alcohol solutions of zirconium(IV) and cerium(IV) salts on the processes of formation, morphology and character of particles distribution by size was studied to develop methods for preparation of oxide particles featuring spherical shape and narrow granulometric composition. Data of X-ray phase analysis and electron microscopy suggest that microwave treatment involves quantitative hydrolysis of the salts and permits preparation of particles mainly of spherical shape with a narrower distribution by size compared with hydrolysis under conventional heating

Abstract (Russian)

С целью разработки методов получения оксидных частиц сферической формы узкого гранулометрического состава изучено влияние параметров микроволнового гидролиза концентрированных водных и водно-спиртовых растворов солей циркония(IV) и церия(IV) на процессы формирования, морфологию и характер распределения частиц по размерам. На основе данных рентгенофазового анализа и электронной микроскопии показано, что микроволновая обработка приводит к количественному гидролизу солей и позволяет получать частицы преимущественно сферической формы с более узким распределением по размеру по сравнению с гидролизом при обычном нагреве

Additional details

Additional titles

Original title (Russian)
Получение оксидных частиц сферической формы микроволновым гидролизом растворов солей Зр(IV), Cе(IV), Ни(II)

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
385
Journal Issue
1
Journal Page Range
p. 67-70
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
35041130
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALCOHOLS; AMMONIUM COMPOUNDS; AQUEOUS SOLUTIONS; CERIUM COMPLEXES; CERIUM OXIDES; CHEMICAL PREPARATION; HYDROLYSIS; MICROSPHERES; MICROWAVE HEATING; MORPHOLOGY; OXYCHLORIDES; PARTICLE SIZE; PHASE STUDIES; ZIRCONIUM NITRATES; ZIRCONIUM OXIDES
Descriptors DEC
CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; COMPLEXES; DECOMPOSITION; DISPERSIONS; HALOGEN COMPOUNDS; HEATING; HOMOGENEOUS MIXTURES; HYDROXY COMPOUNDS; LYSIS; MIXTURES; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; OXYHALIDES; RARE EARTH COMPLEXES; RARE EARTH COMPOUNDS; SIZE; SOLUTIONS; SOLVOLYSIS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Notes
9 refs., 2 figs., 2 tabs.