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Low‐temperature crystallization of La 0.15 Sr 0.775 TiO 3 using ionic liquids
Author(s) -
Mottram Lucy,
Martin Daniel Z.C.,
ReevesMcLaren Nik,
Boston Rebecca
Publication year - 2018
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15754
Subject(s) - ionic liquid , crystallization , thermoelectric effect , oxide , materials science , ionic bonding , phase (matter) , inorganic chemistry , perovskite (structure) , chemical engineering , analytical chemistry (journal) , ion , chemistry , crystallography , catalysis , organic chemistry , thermodynamics , metallurgy , physics , engineering
The n‐type thermoelectric oxide La 0.15 Sr 0.775 TiO 3 ( LST ) has been synthesized at 600°C using an ionic liquid method. The method uses the ionic liquid 1‐ethyl 3‐methylimidazolium acetate as the sole complexing agent: the lack of a second, carbon‐rich template decreases the quantity of reduced intermediate phases which form during heating. By suppressing these phases, greatly reduced temperatures can be used to crystallize the perovskite LST phase, on the nanoscale. These nanoparticles have the potential to be used to increase the figure of merit in n‐type thermoelectric oxide devices.