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Sol-gel synthesis of nano-scale, end-member albite feldspar (NaAlSi3O8).

Authors
  • Anovitz, L M1
  • Affolter, A2
  • Cheshire, M C3
  • Rondinone, A J4
  • Allard, Lawrence F5
  • 1 Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, MS 6110, P.O. Box 2008, Bldg. 4100, TN 37831, United States. Electronic address: [email protected] , (United States)
  • 2 Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, MS 6110, P.O. Box 2008, Bldg. 4100, TN 37831, United States. , (United States)
  • 3 Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, MS 6110, P.O. Box 2008, Bldg. 4100, TN 37831, United States. Electronic address: [email protected] , (United States)
  • 4 Center for Nanophase Materials Science Division, MS 6493, P.O. BOX 2008, Bldg. 8600, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6493, USA. Electronic address: [email protected]
  • 5 Center for Nanophase Materials Science, MS 6064, Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA. Electronic address: [email protected]
Type
Published Article
Journal
Journal of Colloid and Interface Science
Publisher
Elsevier
Publication Date
Dec 01, 2021
Volume
603
Pages
459–467
Identifiers
DOI: 10.1016/j.jcis.2021.06.026
PMID: 34214722
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Feldspars are the most abundant minerals in the Earth's crust, and are also important constituents of many lunar rocks and some stony meteorites. Albite (NaAlSi3O8) makes up the sodium corner of the feldspar ternary diagram (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8) and connects the alkali-feldspar and plagioclase binary joins. Synthesis of albite, however, has long been a problem, even at high temperatures and even at high pressures when dry. In fact, most successful syntheses require the combination of high-pressure, high-temperature, and hydrothermal environments. This paper presents a sol-gel method of albite synthesis that requires hydrothermal processing followed by high-temperature recrystallization, but no high-pressure environments. This has the advantage of allowing synthesis of relatively large amounts of material and controlled elemental substitutions. Copyright © 2021. Published by Elsevier Inc.

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