Flower-liked SnO_2 nanorods were prepared by a hydrothermal method.The sensors were fabricated using SnO_2 nanorods adsorption of Au nanoparticles through sputtering deposition.We found that the loading of a small amo...Flower-liked SnO_2 nanorods were prepared by a hydrothermal method.The sensors were fabricated using SnO_2 nanorods adsorption of Au nanoparticles through sputtering deposition.We found that the loading of a small amount of Au nanoparticles on the surface of SnO_2 nanorods can effectively enhance and functionalize the gas sensing performance of SnO_2 nanorods,which due to the Au adsorption make the surface-depletion effect more pronounced.Such enhanced surface depletion increases the sensitivity,lowers the operation temperature and decreases the response time.展开更多
ZrO2/Graphene nanocomposites are fabricated from graphene oxide by one-step, green, facile and low-cost SCCO2 method. The as-prepared nanocomposites are characterized by means of X-ray photoelectron, transmission elec...ZrO2/Graphene nanocomposites are fabricated from graphene oxide by one-step, green, facile and low-cost SCCO2 method. The as-prepared nanocomposites are characterized by means of X-ray photoelectron, transmission electron microscopy and catalytic chemiluminescence measurement. The ZrO2 nanoparticles with size of several nanometers are uniformly coated on the graphene surface. The chemiluminescence characteristic to ethanol of the as-prepared nanocomposite paper is also investigated. The nanocomposite paper obtained displays high catalytic chemiluminescence sensitivity and highly selectivity to the ethanol gas. This study provides a facile, green and low-cost route to prepare nanoscopic gas sensing devices with application in safe protection, food fermentation, medical process and traffic safe.展开更多
文摘Flower-liked SnO_2 nanorods were prepared by a hydrothermal method.The sensors were fabricated using SnO_2 nanorods adsorption of Au nanoparticles through sputtering deposition.We found that the loading of a small amount of Au nanoparticles on the surface of SnO_2 nanorods can effectively enhance and functionalize the gas sensing performance of SnO_2 nanorods,which due to the Au adsorption make the surface-depletion effect more pronounced.Such enhanced surface depletion increases the sensitivity,lowers the operation temperature and decreases the response time.
文摘ZrO2/Graphene nanocomposites are fabricated from graphene oxide by one-step, green, facile and low-cost SCCO2 method. The as-prepared nanocomposites are characterized by means of X-ray photoelectron, transmission electron microscopy and catalytic chemiluminescence measurement. The ZrO2 nanoparticles with size of several nanometers are uniformly coated on the graphene surface. The chemiluminescence characteristic to ethanol of the as-prepared nanocomposite paper is also investigated. The nanocomposite paper obtained displays high catalytic chemiluminescence sensitivity and highly selectivity to the ethanol gas. This study provides a facile, green and low-cost route to prepare nanoscopic gas sensing devices with application in safe protection, food fermentation, medical process and traffic safe.
