کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7707872 1497319 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
CuInS2/SiNWs/Si composite material for application as potential photoelectrode for photoelectrochemical hydrogen generation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
CuInS2/SiNWs/Si composite material for application as potential photoelectrode for photoelectrochemical hydrogen generation
چکیده انگلیسی
This work aims at developing a new composite material based on nanosized semiconducting CuInS2 (CIS) particles combined with silicon nanowires grown on a silicon substrate (SiNWs/Si) for photoelectrochemical (PEC)-splitting of water. The CIS particles were prepared via a colloidal method using N-methylimidazole (NMI) as the solvent and an annealing treatment. The SiNWs were obtained by chemical etching of silicon (100) substrates assisted by a metal. The CIS/SiNWs/Si composite material was obtained by deposition of an aliquot of a suspension of CIS particles onto the SiNWs/Si substrate, using spin coating followed by a drying step. The XRD pattern demonstrated that CuInS2 grows in the tetragonal/chalcopyrite phase, while SiNWs/Si presents a cubic structure. The SEM images show semi-spherical particles (∼10 nm) distributed on the surface of silicon nanowires (∼10 μm). The EIS measurements reveal n-type conductivity for CIS, SiNWs/Si and CIS/SiNWs/Si materials, which could favour the oxidation reaction of water molecules.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 6, 8 February 2018, Pages 3431-3440
نویسندگان
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