【外文翻译】iro2╟sio2二元氧化物薄膜：制备，理化特性和它们的电化学性能.rar
【外文翻译】iro2–sio2二元氧化物薄膜：制备，理化特性和它们的电化学性能,【外文翻译】iro2╟sio2二元氧化物薄膜：制备，理化特性和它们的电化学性能摘 要混合iro2- sio2系氧化物薄膜是通过溶解在有机溶剂中的氯铱酸(h2ircl6)和正硅酸乙酯(teos)这些混合前驱体在钛基上制备。该溶液化学和混合前驱体热分解动力学性能可分别通过紫外/可见（紫外/可见）光谱和热重（tga）和差热分...
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【外文翻译】IrO2–SiO2二元氧化物薄膜：制备，理化特性和它们的电化学性能
摘 要
混合IrO2- SiO2系氧化物薄膜是通过溶解在有机溶剂中的氯铱酸(H2IrCl6)和正硅酸乙酯(TEOS)这些混合前驱体在钛基上制备。该溶液化学和混合前驱体热分解动力学性能可分别通过紫外/可见（紫外/可见）光谱和热重（TGA）和差热分析（DTA）等进行了研究。由此生成的材料的理化特性可通过X射线衍射仪（XRD），扫描电子显微镜（SEM）和电化学测试进行表征。从紫外/可见光谱可以看出，电子吸收的IrCl6复合物强度在录得跌幅的前体TEOS的存在，说明这两组分之间的相互作用。热分析显示H2IrCl6分解反应是由正硅酸乙酯在低的温度范围被抑制，但在高温下形成的中间产物进一步氧化反应是独立存在的硅烷组分。物理测量显示，硅在IrO2结晶和晶体生长过程约束作用导致形成了细氧化物颗粒和多孔氧化膜的二元形态。多孔复合薄膜表现出对析氧反应高且明显电催化活性。此外，在恒电流电解测试下，发现适量SiO2的掺入可以使Ti支持的铱电极长期稳定性明显改善。
abstract
Mixed IrO2–SiO2 oxide ?lms were prepared on titanium substrate by the thermo-decomposition of
hexachloroiridate (H2IrCl6) and tetraethoxysilane (TEOS) mixed precursors in organic solvents. The
solution chemistry and thermal decomposition kinetics of the mixed precursors were investigated by
ultra violet/visible (UV/vis) spectroscopy and thermogravimetry (TGA) and differential thermal analysis
(DTA), respectively. The physiochemical characterization of the resulting materials was conducted
by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical measurements.
It is shown from the UV/vis spectra that the electronic absorption intensity of IrCl6
2? complexes
in the precursors decreases in the presence of TEOS, indicating the interaction between these two
components. Thermal analysis shows the decomposition reaction of H2IrCl6 is inhibited by TEOS in the
low temperature range, but the further oxidation reaction at high temperatures of formed intermediates
is independent of the presence of silane component. Physical measurements show a restriction effect
of silica on the crystallization and crystal growth processes of IrO2, leading to the formation of ?ner
oxide particles and the porousmorphology of the binary oxide ?lms. The porous composite ?lms exhibit
high apparent electrocatalytic activity toward the oxygen evolution reaction. In addition, the long-term
stability of Ti-supported IrO2 electrodes is found to apparently improve with appropriate amount of
SiO2 incorporation, as tested under galvanostatic electrolysis.
摘 要
混合IrO2- SiO2系氧化物薄膜是通过溶解在有机溶剂中的氯铱酸(H2IrCl6)和正硅酸乙酯(TEOS)这些混合前驱体在钛基上制备。该溶液化学和混合前驱体热分解动力学性能可分别通过紫外/可见（紫外/可见）光谱和热重（TGA）和差热分析（DTA）等进行了研究。由此生成的材料的理化特性可通过X射线衍射仪（XRD），扫描电子显微镜（SEM）和电化学测试进行表征。从紫外/可见光谱可以看出，电子吸收的IrCl6复合物强度在录得跌幅的前体TEOS的存在，说明这两组分之间的相互作用。热分析显示H2IrCl6分解反应是由正硅酸乙酯在低的温度范围被抑制，但在高温下形成的中间产物进一步氧化反应是独立存在的硅烷组分。物理测量显示，硅在IrO2结晶和晶体生长过程约束作用导致形成了细氧化物颗粒和多孔氧化膜的二元形态。多孔复合薄膜表现出对析氧反应高且明显电催化活性。此外，在恒电流电解测试下，发现适量SiO2的掺入可以使Ti支持的铱电极长期稳定性明显改善。
abstract
Mixed IrO2–SiO2 oxide ?lms were prepared on titanium substrate by the thermo-decomposition of
hexachloroiridate (H2IrCl6) and tetraethoxysilane (TEOS) mixed precursors in organic solvents. The
solution chemistry and thermal decomposition kinetics of the mixed precursors were investigated by
ultra violet/visible (UV/vis) spectroscopy and thermogravimetry (TGA) and differential thermal analysis
(DTA), respectively. The physiochemical characterization of the resulting materials was conducted
by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical measurements.
It is shown from the UV/vis spectra that the electronic absorption intensity of IrCl6
2? complexes
in the precursors decreases in the presence of TEOS, indicating the interaction between these two
components. Thermal analysis shows the decomposition reaction of H2IrCl6 is inhibited by TEOS in the
low temperature range, but the further oxidation reaction at high temperatures of formed intermediates
is independent of the presence of silane component. Physical measurements show a restriction effect
of silica on the crystallization and crystal growth processes of IrO2, leading to the formation of ?ner
oxide particles and the porousmorphology of the binary oxide ?lms. The porous composite ?lms exhibit
high apparent electrocatalytic activity toward the oxygen evolution reaction. In addition, the long-term
stability of Ti-supported IrO2 electrodes is found to apparently improve with appropriate amount of
SiO2 incorporation, as tested under galvanostatic electrolysis.
