| Title: | Gas-Sensing Activity of Amorphous Copper Oxide Porous Nanosheets |
| Author(s): | Tian Z; Bai H; Li Y; Liu W; Li J; Kong Q; Xi G; |
| Address: | "School of the Environment and Safety engineering, Jiangsu University, Zhenjiang, 212013, P. R. China. Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, No. 11, Ronghua South Road, Beijing" |
| ISSN/ISBN: | 2191-1363 (Print) 2191-1363 (Electronic) 2191-1363 (Linking) |
| Abstract: | "In this paper, the gas-sensing properties of copper oxide porous nanosheets in amorphous and highly crystalline states were comparatively investigated on the premise of almost the same specific surface area, morphology and size. Unexpectedly, the results show that amorphous copper oxide porous nanosheets have much better gas sensing properties than highly crystalline copper oxide to a serious of volatile organic compounds, and the lowest detection limit (LOD) of the amorphous copper oxide porous nanosheets to methanal is even up to 10 ppb. By contrast, the LOD of the highly crystalline copper oxide porous nanosheets to methanal is 95 ppb. Experiments prove that the oxygen vacancies contained in the amorphous copper oxide porous nanosheets play a key role in improving gas sensitivity, which greatly improve the chemical activity of the materials, especially for the adsorption of molecules containing oxygen-groups such as methanal and oxygen" |
| Keywords: | adsorption energy amorphous nanostructures gas-sensing oxygen vacancies porous nanosheets; |
| Notes: | "PubMed-not-MEDLINETian, Zheng Bai, Hua Li, Yahui Liu, Wei Li, Junfang Kong, Qinghong Xi, Guangcheng eng Research Support, Non-U.S. Gov't Germany 2020/01/29 ChemistryOpen. 2020 Jan 17; 9(1):80-86. doi: 10.1002/open.201900327. eCollection 2020 Jan" |
