| Title: | Insights in the Application of Stoichiometric and Non-Stoichiometric Titanium Oxides for the Design of Sensors for the Determination of Gases and VOCs (TiO(2-x) and Ti(n)O(2n-1) vs. TiO(2)) |
| Author(s): | Ramanavicius S; Ramanavicius A; |
| Address: | "Department of Electrochemical Material Science, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania. Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania" |
| ISSN/ISBN: | 1424-8220 (Electronic) 1424-8220 (Linking) |
| Abstract: | "In this review article, attention is paid towards the formation of various nanostructured stoichiometric titanium dioxide (TiO(2)), non-stoichiometric titanium oxide (TiO(2-x)) and Magneli phase (Ti(n)O(2n-1))-based layers, which are suitable for the application in gas and volatile organic compound (VOC) sensors. Some aspects related to variation of sensitivity and selectivity of titanium oxide-based sensors are critically overviewed and discussed. The most promising titanium oxide-based hetero- and nano-structures are outlined. Recent research and many recently available reviews on TiO(2)-based sensors and some TiO(2) synthesis methods are discussed. Some promising directions for the development of TiO(2)-based sensors, especially those that are capable to operate at relatively low temperatures, are outlined. The applicability of non-stoichiometric titanium oxides in the development of gas and VOC sensors is foreseen and transitions between various titanium oxide states are discussed. The presence of non-stoichiometric titanium oxide and Magneli phase (Ti(n)O(2n-1))-based layers in 'self-heating' sensors is predicted, and the advantages and limitations of 'self-heating' gas and VOC sensors, based on TiO(2) and TiO(2-x)/TiO(2) heterostructures, are discussed" |
| Keywords: | Magneli phases (TinO2n-1) gas and volatile organic compound (VOC) sensors nanomaterials non-stoichiometric titanium oxide (TiOn or TiO2-x) titanium dioxide (TiO2); |
| Notes: | "PubMed-not-MEDLINERamanavicius, Simonas Ramanavicius, Arunas eng Review Switzerland 2020/12/03 Sensors (Basel). 2020 Nov 29; 20(23):6833. doi: 10.3390/s20236833" |
