Applied Physics and Mathematics Annotation << Back Gas chemical nanosensors with sensitive elements based on nickel oxide V.A. Buzanovskii Results of development of gas chemical nanosensors with the sensitive elements based on nickel oxide are submitted in the article. The developed devices are systematized according to construction features of their sensitive elements. Thus, three nanosensor groups are defined. Group 1 is devices sensitive elements of which have a covering only from nickel oxide. Group 2 is nanosensors with the sensitive elements containing a covering from nickel oxide and an external layer of other material. Group 3 is devices sensitive elements of which have a covering from the composite based on nickel oxide. Analytical abilities of the listed nanosensor groups are demonstrated. Typical regularities are marked. In particular, ability of these devices to determination of rather big number of inorganic and organic chemical compounds is presented. Influence of morphology and composition of a covering and also temperature of sensitive element on sensitivity and selectivity of measurements, response time and recovery time is shown. Key words: nanotechnology, nanomaterial, gas chemical nanosensor, sensitive element, covering, nickel oxide, metrological characteristic. Contacts: E-mail: vab1960@rambler.ru Pp. 17-39.