Bio-templated fabrication of hierarchically porous WO3 microspheres from lotus pollens for NO gas sensing at low temperatures

• DOI: 10.1039/c5ra02536b
• Publication Date: 2015-03-16T15:05:35Z
• Authors: Xiao-Xue Wang; Kuan Tian; Hua-Yao Li; Ze-Xing Cai; Xin Guo
• Keywords: 13. Climate action; 02 engineering and technology; 0210 nano-technology; 16. Peace & justice; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

Lotus pollen was used as a template to prepare WO3 microspheres. The porous structure of the microspheres is ideal for gas sensing. The microsphere-based sensor has high sensitivity (S = 46.2) to 100 ppm NO gas with fast response and recovery speed 62 s/223 s) at 200 °C.