Effect of Cation Substitution on the Gas-Sensing Performances of Ternary Spinel MCo2O4 (M = Mn, Ni, and Zn) Multishelled Hollow Twin Spheres

• DOI: 10.1021/acsami.9b07546
• Publication Date: 2019-07-10T16:43:03Z
• Authors: Tingting Zhou; Shuang Cao; Rui Zhang; Jinchun Tu; Teng Fei; Tong Zhang
• Keywords: 02 engineering and technology; 0210 nano-technology

Advanced sensing materials are in high demand for sensitive, real-time, and continuous detection of gas molecules sensors, which have been becoming an effective tool environmental monitoring disease diagnosis. Cobalt-containing spinel oxides promising the gas-sensing reaction owing to their element abundance remarkable activity. Structural component properties can be modulated optimize performances by substituting Co with other transition metals. Herein, a systematic study MCo2O4 (M = Mn, Ni, Zn) toward is presented. Results show that ZnCo2O4 multishelled hollow twin-sphere structure obtained excellent formaldehyde acetone at different temperatures. The replacement Zn lattice improves oxygen-chemisorbing ability, allows new opportunities synthesize design highly sensitive chemical sensors.