توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Ultrasound synthesis of nanoparticles of Mil–88B infunctionalized ionic liquid medium
نویسنده(ها): ، ، ،
اطلاعات انتشار: کنفرانس بین المللی مهندسی و علوم کاربردی، سال
تعداد صفحات: ۷
Nanoparticles of MIL–88B(Fe), a metal organic framework material has been synthesized in a functional ionic liquid (FIL) {[CH2CH2] O2 (mm)2} medium under ultrasound condition. The particle size of these structures was 80 nm. The spindle–shape crystal of MIL–88B (Fe) with length about 2 μm and diameter about 1 micrometer, also prepared by ultrasound method when the functional ionic liquid (FIL) {[CH2CH2] O2 (mm)2} was not in the synthesis medium. The preparation of various structures of MIL–88B (Fe) was proved by xrd spectra and SEM images. MIL–88B (Fe) was synthesized in the presence of ionic liquid and in the absence of it, the particle size and morphology of MIL–88B (Fe) change by using of ionic liquid in synthesis medium.<\div>

۲Enhancement in Photoresponse of Hematite Photoanodes Nanostructures by Changing Morphology for Solar Water Splitting
نویسنده(ها): ، ، ،
اطلاعات انتشار: کنفرانس بین المللی مهندسی و علوم کاربردی، سال
تعداد صفحات: ۷
Hematite (α–Fe2O3) is a promising semiconductor as photoanode in solar hydrogen production from photoelectrolysis of water due to its appropriate band gap, low cost and high electrochemical stability in aqueous caustic electrolytes. The operation of such photoanode in a biased photoelectrochemical cell constitutes an anodization with consequent redox reactions at the electrode surface. α–Fe2O3 thin film photoanodes were prepared by the Hydrothermal method and via Dr. Blade technic for a coating on fluorine–doped tin oxide (FTO) glass substrate, annealed in air at 500 ˚C for 2 hours. Changes in structural properties and morphology of α–Fe2O3 nanoparticles films were investigated by XRD, SEM. The UV–visible measurements revealed enhanced absorption in the photoanodes with optimized morphology. The findings suggest that optimized morphology causes only changes of the molecular structure at the surface and not in the crystallographic structure which can be detected with x–ray diffractometry.<\div>
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