Xiaodong Cui
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Xiaodong Cui has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
- Linfeng Fei
Nanchang University
2 shared publications - Wanping Chen
School of Physics and Technology, Wuhan University, Wuhan 430072, China
2 shared publications - Hongbo Wang
School of Physics and Technology, Wuhan University, Wuhan 430072, China
1 shared publication - Hua Lei
School of Physics and Technology, Wuhan University, Wuhan 430072, China
1 shared publication - Jianqing Zhou
Hubei Key Laboratory of Photoelectric Materials and Devices, School of Materials Science and Engineering, Hubei Normal University, Huangshi 435002, China
1 shared publication - Jie Zhang
Hubei Key Laboratory of Photoelectric Materials and Devices, School of Materials Science and Engineering, Hubei Normal University, Huangshi 435002, China
1 shared publication
Latest Publications
- Open Access
Surprising Tribocatalytic Production of H2 from H2O by Silicon Single Crystals via Low-Speed Magnetic Stirring
A surprising tribocatalytic capability has been discovered for Si single crystals to convert mechanical energy into chemical energy for organic dye degradation recently. In this study, their tribocatalytic capability has been explored for converting mechanical energy into chemical energy of water splitting. In glass reactors with Si single crystals coated on the bottoms and with H2O and N2 enclosed, Al2O3 nanoparticles, TiO2 nanoparticles, and NiO particles were stimulated through magnetic stirring using home-made PTFE magnetic rotary disks separately. For Al2O3 nanoparticles, as much as 14,330 and 41,964 ppm H2 were produced after 1 and 3 h of 400 rpm magnetic stirring, respectively, much higher than those obtained for TiO2 and NiO, and for Al2O3 nanoparticles in glass-bottomed reactors as well. The tribocatalytic production of H2 was further explored with respect to NaCl addition to H2O and p/n doping in Si, with negative effects observed for them all. Photoluminescence spectroscopy revealed continuous generation of hydroxyl radicals in the course of magnetic stirring, which supports a tribocatalytic mechanism based on the excitation of electron–hole pairs in Si single crystals through mechanical energy absorbed through friction. These findings suggest a great potential for narrow-band semiconductors to utilize mechanical energy through friction to carry out important chemical reactions.
Open AccessSurprising Tribocatalytic Production of H2 from H2O by Silicon Single Crystals via Low-Speed Magnetic Stirring
A surprising tribocatalytic capability has been discovered for Si single crystals to convert mechanical energy into chemical energy for organic dye degradation recently. In this study, their tribocatalytic capability has been explored for converting mechanical energy into chemical energy of water splitting. In glass reactors with Si single crystals coated on the bottoms and with H2O and N2 enclosed, Al2O3 nanoparticles, TiO2 nanoparticles, and NiO particles were stimulated through magnetic stirring using home-made PTFE magnetic rotary disks separately. For Al2O3 nanoparticles, as much as 14,330 and 41,964 ppm H2 were produced after 1 and 3 h of 400 rpm magnetic stirring, respectively, much higher than those obtained for TiO2 and NiO, and for Al2O3 nanoparticles in glass-bottomed reactors as well. The tribocatalytic production of H2 was further explored with respect to NaCl addition to H2O and p/n doping in Si, with negative effects observed for them all. Photoluminescence spectroscopy revealed continuous generation of hydroxyl radicals in the course of magnetic stirring, which supports a tribocatalytic mechanism based on the excitation of electron–hole pairs in Si single crystals through mechanical energy absorbed through friction. These findings suggest a great potential for narrow-band semiconductors to utilize mechanical energy through friction to carry out important chemical reactions.
- Open Access
Tribo-Catalytic Conversions of H2O and CO2 by NiO Particles in Reactors with Plastic and Metallic Coatings
NiO has been found to be highly outstanding in producing H2 and O2 from H2O through magnetic stirring, while its capability for the reduction of CO2 through mechanical stimulation has not been investigated. Presently, NiO particles have been employed to promote the conversion of H2O and CO2 enclosed in reactors into flammable gases through magnetic stirring. For a 150 mL glass reactor filled with 50 mL water, 1.00 g of NiO particles, and 1 atm of CO2, 24 h of magnetic stirring using a home-made Teflon magnetic rotary disk resulted in the formation of 33.80 ppm CO, 10.10 ppm CH4, and 12,868.80 ppm H2. More importantly, the reduction of CO2 was found to be substantially enhanced through coating some polymers and metals on the reactor bottoms, including 25.64 ppm CO and 70.97 ppm CH4 obtained for a PVC-coated reactor and 30.68 ppm CO, 52.78 ppm CH4, 3.82 ppm C2H6, and 2.18 ppm C2H4 obtained for a stainless steel-coated reactor. Hydroxyl radicals were detected using fluorescence spectroscopy for NiO particles under magnetic stirring in water. A tribo-catalytic mechanism has been proposed for the conversion of H2O and CO2 into flammable gases by NiO particles under magnetic stirring that is based on the excitation of electron-hole pairs in NiO by mechanical energy absorbed through friction. These findings not only reveal a great potential for mechanical energy to be utilized for CO2 conversion but are also valuable for fundamental studies.
Open AccessTribo-Catalytic Conversions of H2O and CO2 by NiO Particles in Reactors with Plastic and Metallic Coatings
NiO has been found to be highly outstanding in producing H2 and O2 from H2O through magnetic stirring, while its capability for the reduction of CO2 through mechanical stimulation has not been investigated. Presently, NiO particles have been employed to promote the conversion of H2O and CO2 enclosed in reactors into flammable gases through magnetic stirring. For a 150 mL glass reactor filled with 50 mL water, 1.00 g of NiO particles, and 1 atm of CO2, 24 h of magnetic stirring using a home-made Teflon magnetic rotary disk resulted in the formation of 33.80 ppm CO, 10.10 ppm CH4, and 12,868.80 ppm H2. More importantly, the reduction of CO2 was found to be substantially enhanced through coating some polymers and metals on the reactor bottoms, including 25.64 ppm CO and 70.97 ppm CH4 obtained for a PVC-coated reactor and 30.68 ppm CO, 52.78 ppm CH4, 3.82 ppm C2H6, and 2.18 ppm C2H4 obtained for a stainless steel-coated reactor. Hydroxyl radicals were detected using fluorescence spectroscopy for NiO particles under magnetic stirring in water. A tribo-catalytic mechanism has been proposed for the conversion of H2O and CO2 into flammable gases by NiO particles under magnetic stirring that is based on the excitation of electron-hole pairs in NiO by mechanical energy absorbed through friction. These findings not only reveal a great potential for mechanical energy to be utilized for CO2 conversion but are also valuable for fundamental studies.