Structure Property Relationships and Cationic Doping in [Ca24Al28O64]4+ Framework: A Review

JR Salasin, C Rawn - Crystals, 2017 - mdpi.com
Ca12Al14O33 (C12A7, 12CaO· 7Al2O3, or [Ca 12 Al 14 O 32] 2+: O 2−) is a material with a
clathrate cage framework, positively charged and stabilized by anions occluded within 17 …

Mayenite synthesis from hydroxide precursors: Structure formation and active sites on its surface

AV Kapishnikov, RM Kenzhin, AP Koskin, AM Volodin… - Materials, 2022 - mdpi.com
We studied the formation process of a mayenite structure from hydroxide precursors in
different gas media. According to X-ray diffraction data, this method allows a well-crystallized …

Synthesis of C12A7 calcium aluminate aerogels

EV Ilyina, YY Gerus, SV Cherepanova, AF Bedilo - Materials Letters, 2021 - Elsevier
Calcium aluminate aerogels with mayenite stoichiometry C12A7 were prepared for the first
time. The surface area of amorphous aerogel obtained after hydrolysis with stoichiometric …

Synthesis of vanadia-mayenite nanocomposites and characterization of their structure, morphology and surface sites

EI Shuvarakova, EV Ilyina, SV Cherepanova… - Journal of Composites …, 2022 - mdpi.com
Calcium aluminates (CA) with a mayenite structure have attracted a growing interest during
the last decades. The present paper reports the preparation of vanadia-mayenite …

Stabilizing effect of the carbon shell on phase transformation of the nanocrystalline alumina particles

IV Yakovlev, AM Volodin, VI Zaikovskii… - Ceramics …, 2018 - Elsevier
Intensive phase transformations of alumina are known to occur at temperatures above 1000°
C. In the present work, high temperature behaviour of pure Al 2 O 3 and the carbon coated …

Prospect of using nanoalloys of partly miscible rhodium and palladium in three-way catalysis

AA Vedyagin, YV Shubin, RM Kenzhin, PE Plyusnin… - Topics in …, 2019 - Springer
Alloys of partly miscible metals attract a growing attention due to their unique
physicochemical properties. Palladium–rhodium solid solution was synthesized using a …

Electrophysical Properties of Polycrystalline C12A7:e Electride

AA Rybak, ID Yushkov, NA Nikolaev, AV Kapishnikov… - Electronics, 2022 - mdpi.com
This article demonstrates the possibility of creating memory devices based on polycrystalline
mayenite. In the course of the study, structural characterization (XRD, TEM) of ceramic …

Nanocrystalline carbon coated alumina with enhanced phase stability at high temperatures

AM Volodin, AF Bedilo, VO Stoyanovskii, VI Zaikovskii… - RSC …, 2017 - pubs.rsc.org
A comparative investigation of the phase stability at high temperatures of nanocrystalline
Al2O3 and carbon-coated Al2O3@ C systems was performed using a set of …

Mayenite-based electride C12A7e−: an innovative synthetic method via plasma arc melting

S Weber, S Schäfer, M Saccoccio, K Seidel… - Materials Chemistry …, 2021 - pubs.rsc.org
Mayenite-based electrides have been reported as promising support materials for
applications in heterogeneous catalysis. However, the current synthetic access to mayenite …

Synthesis and investigation of finely dispersed calcium aluminates and catalysts based on them

EI Shuvarakova, AF Bedilo, RM Kenzhin… - Russian Journal of …, 2022 - Springer
Finely dispersed calcium aluminate C12A7 (12CaO⋅ 7Al2O3) samples are synthesized in
water and in an autoclave using supercritical drying. The specific surface area of the aerogel …