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Fast‐Geomimicking using Chemistry in Supercritical Water
Author(s) -
Dumas Angela,
Claverie Marie,
Slostowski Cédric,
Aubert Guillaume,
Careme Cristel,
Le Roux Christophe,
Micoud Pierre,
Martin François,
Aymonier Cyril
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201604096
Subject(s) - supercritical fluid , hydrothermal circulation , talc , high pressure , hydrothermal synthesis , mineralogy , sedimentary rock , natural (archaeology) , chemical engineering , chemistry , materials science , geology , engineering physics , geochemistry , engineering , organic chemistry , metallurgy , paleontology
Herein we introduce a powerful and fast method to produce nanominerals using a bottom up approach. The supercritical hydrothermal flow synthesis is exploited to produce model nanominerals by mimicking natural environments at high temperatures under pressure. This innovative concept is demonstrated with the talc synthesis; this represents a major technical breakthrough since it allows decreasing the mineral‐synthesis time from tens of hours to tens of seconds. Through this example, we show these nanominerals exhibit new crystal‐chemistry signals and new properties. This approach provides a means to reproduce the early stages of formation of minerals in different natural environments from sedimentary environments (low temperature and pressure) to hydrothermal/metamorphic environments (high temperature and high pressure).