使用阳极氧化法,在含氟乙二醇电解液体系中制备出高度有序的TiO2纳米管阵列,并将其运用于双室光电解池中,在无任何外加电压条件下制备氢气.通过光催化制氢及光电化学性能测试,系统性地研究了不同氧化温度对TiO2纳米管产氢速率,光电流密...使用阳极氧化法,在含氟乙二醇电解液体系中制备出高度有序的TiO2纳米管阵列,并将其运用于双室光电解池中,在无任何外加电压条件下制备氢气.通过光催化制氢及光电化学性能测试,系统性地研究了不同氧化温度对TiO2纳米管产氢速率,光电流密度与光电转化率的影响.实验结果表明,TiO2纳米管的光电催化性能受氧化温度影响,并随氧化温度的降低而升高.40℃下制备的TiO2纳米管产氢速率为0.8 m L/(cm2·h),当温度降低至15℃时,TiO2样品产氢速率升高至2.3 m L/(cm2·h),单位面积产氢量增加1.87倍.展开更多
The article improves the process of dielectric barrier discharge(DBD)activated anode bonding.The treated surface was characterized by the hydrophilic surface test.The results showed that the hydrophilic angle was sign...The article improves the process of dielectric barrier discharge(DBD)activated anode bonding.The treated surface was characterized by the hydrophilic surface test.The results showed that the hydrophilic angle was significantly reduced under nano-gap conditions and the optimal discharge voltage was 2 kV.Then,the anodic bonding and dielectric barrier discharge activated bonding were performed in comparison experiments,and the bonding strength was characterized by tensile failure test.The results showed that the bonding strength was higher under the nano-gap dielectric barrier discharge.This process completed 110°C ultra-low temperature anodic bonding and the bonding strength reached 2 MPa.Finally,the mechanism of promoting bonding after activation is also discussed.展开更多
A novel Ti-based Ti-Mn composite anode used for electrolytic manganese dioxide(EMD) fabrication was developed by a two-step heating manganizing technique.The effects of sintering temperature on the manganized microstr...A novel Ti-based Ti-Mn composite anode used for electrolytic manganese dioxide(EMD) fabrication was developed by a two-step heating manganizing technique.The effects of sintering temperature on the manganized microstructure and the performance of the composite anode were studied by scanning electron microscopy(SEM),mechanical properties tests at room temperature and electrochemical methods.The results show that the thickness of the diffusion layer increases with the increase of sintering temperature up to 1 100 °C;whereas,the surface Mn content increases and reaches the maximum at 1 000 °C and then decreases thereafter.Lower surface Mn content is beneficial for the enhanced corrosion resistance and lowered open cell voltage in electrolytic process.The new anode prepared under the optimized conditions has been applied in industry and exhibits superior economic benefits to conventional Ti anodic materials.展开更多
文摘使用阳极氧化法,在含氟乙二醇电解液体系中制备出高度有序的TiO2纳米管阵列,并将其运用于双室光电解池中,在无任何外加电压条件下制备氢气.通过光催化制氢及光电化学性能测试,系统性地研究了不同氧化温度对TiO2纳米管产氢速率,光电流密度与光电转化率的影响.实验结果表明,TiO2纳米管的光电催化性能受氧化温度影响,并随氧化温度的降低而升高.40℃下制备的TiO2纳米管产氢速率为0.8 m L/(cm2·h),当温度降低至15℃时,TiO2样品产氢速率升高至2.3 m L/(cm2·h),单位面积产氢量增加1.87倍.
基金Project(6140863020216JW30001)supported by the General Armaments Department Pre-research Fund,China。
文摘The article improves the process of dielectric barrier discharge(DBD)activated anode bonding.The treated surface was characterized by the hydrophilic surface test.The results showed that the hydrophilic angle was significantly reduced under nano-gap conditions and the optimal discharge voltage was 2 kV.Then,the anodic bonding and dielectric barrier discharge activated bonding were performed in comparison experiments,and the bonding strength was characterized by tensile failure test.The results showed that the bonding strength was higher under the nano-gap dielectric barrier discharge.This process completed 110°C ultra-low temperature anodic bonding and the bonding strength reached 2 MPa.Finally,the mechanism of promoting bonding after activation is also discussed.
基金Projects(20476106,50721003 and 20636020) supported by the National Natural Science Foundation of ChinaProject(50825102) supported by the National Natural Science Funds for Distinguished Young Scholar of China+1 种基金Project(2006AA03Z511) supported by the National High Technology Research and Development Program of ChinaProject supported by the 111 Program of Chinese Ministry of Education
文摘A novel Ti-based Ti-Mn composite anode used for electrolytic manganese dioxide(EMD) fabrication was developed by a two-step heating manganizing technique.The effects of sintering temperature on the manganized microstructure and the performance of the composite anode were studied by scanning electron microscopy(SEM),mechanical properties tests at room temperature and electrochemical methods.The results show that the thickness of the diffusion layer increases with the increase of sintering temperature up to 1 100 °C;whereas,the surface Mn content increases and reaches the maximum at 1 000 °C and then decreases thereafter.Lower surface Mn content is beneficial for the enhanced corrosion resistance and lowered open cell voltage in electrolytic process.The new anode prepared under the optimized conditions has been applied in industry and exhibits superior economic benefits to conventional Ti anodic materials.
