TY  - JOUR
AU  - Simonenko, Elizaveta P.
AU  - Simonenko, Nikolay P.
AU  - Kopitsa, Gennady P.
AU  - Mokrushin, Artem S.
AU  - Khamova, Tamara V.
AU  - Sizova, Svetlana V.
AU  - Khaddazh, Mishal
AU  - Tsvigun, Natalia V.
AU  - Pipich, Vitaliy
AU  - Gorshkova, Yulia E.
AU  - Sevastyanov, Vladimir G.
AU  - Kuznetsov, Nikolay T.
TI  - A sol-gel synthesis and gas-sensing properties of finely dispersed ZrTiO4
JO  - Materials chemistry and physics
VL  - 225
SN  - 0254-0584
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2019-00583
SP  - 347 - 357
PY  - 2019
AB  - The transparent titanium-zirconium-containing gel was obtained using heteroligand coordination compounds (namely, alkoxoacetylacetonates) as the precursors. The high-dispersive system “ZrTiO4 – carbon”, formed after drying of such gel and carbonization of the obtained xerogel, was used to study the evolution of microstructure for the product (ZrTiO4) during thermal treatment in air for 1 h in the temperature range from 500 °C to 1000°С. It was stated that the formation of crystalline phase occurred in the narrow range 690-730°С. The thermal treatment at 500 °C and 600°С allowed obtaining micro- and mesoporous X-ray amorphous products of the composition ZrTiO4, with the specific surface area falling in the range 82–150m2/g. At the higher temperatures the single-phase nanocrystalline powder was prepared (the specific surface area amounted to 2.5–15m2/g). Particle coarsening took place more extensively at temperatures ≥700°С was shown. For the ZrTiO4 nanopowder crystallized under the mildest conditions at the temperature of 700 °C, chemoresistive gas-sensitive properties were studied for the first time. The material showed a high reproducible response at 1–20% O2 and 200–10,000 ppm H2 at a relatively low detection operating temperature of 450 °C.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000463847900047
DO  - DOI:10.1016/j.matchemphys.2018.12.102
UR  - https://juser.fz-juelich.de/record/859746
ER  -