title: Low Working-Temperature Acetone Vapor Sensor Based on Zinc Nitride and Oxide Hybrid Composites.
abstract: Transition-metal nitride and oxide composites are a significant class of emerging materials that have attracted great interest for their potential in combining the advantages of nitrides and oxides. Here, a novel class of gas sensing materials based on hybrid Zn3 N2 and ZnO composites is presented. The Zn3 N2 /ZnO (ZnNO) composites-based sensor exhibits selectivity and high sensitivity toward acetone vapor, and the sensitivity is dependent on the nitrogen content of the composites. The ZnNO-11.7 described herein possesses a low working temperature of 200 °C. The detection limit (0.07 ppm) is below the diabetes diagnosis threshold (1.8 ppm). In addition, the sensor shows high reproducibility and long-term stability.
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
authors.forename: Fengdong
authors.initials: F
authors.lastname: Qu
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Yuan
authors.affiliation: Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139-4307, USA.
authors.forename: Rohiverth
authors.initials: R
authors.lastname: Guarecuco
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
authors.forename: Minghui
authors.initials: M
authors.lastname: Yang
mesh_terms: D000096:Acetone / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry*; D013696:Temperature; D015032:Zinc / Q000737:chemistry; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals; D000096:Acetone; D015032:Zinc; D015034:Zinc Oxide
keywords: acetone; nitride; oxides; sensors; zinc