کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8161054 | 1525114 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanostructured hematite thin films for photoelectrochemical water splitting
ترجمه فارسی عنوان
نازک نانوکامپوزیتی برای پوشش فتوای الکتروشیمیایی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
Nanostructured hematite thin films prepared by dip coating technique were investigated for their photoelectrochemical activity for generation of hydrogen from water splitting. Structural, morphological and optical analyses of the doped/undoped films were performed by X-ray diffraction, high resolution field emission-scanning electron microscopy, UV-vis spectrophotometry and Raman spectroscopy. The photoelectrochemical measurements of the films showed enhanced photoresponse and cathodic shift of the onset potential upon Ti doping indicating improved transfer of photoholes at the semiconductor-electrolyte interface. Films doped with 1Â at% Ti produced 0.72Â mA/cm2 at 1.23Â V vs RHE which is 2 times higher than current density for the pure film (0.30Â mA/cm2, at 1.23Â V vs RHE). Gas chromatography analysis of the films also showed enhanced hydrogen evolution at 1Â at% Ti with respect to pure film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 67-71
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 67-71
نویسندگان
Kelebogile Maabong, Augusto G.J. Machatine, Benard S. Mwankemwa, Artur Braun, Debajeet K. Bora, Rita Toth, Mmantsae Diale,