کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145622 | 1497337 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Precisely locate Pd-Polypyrrole on TiO2 for enhanced hydrogen production
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Noble metal (Pd) and conducting polymer (PPy) are considered as two promising candidates to modify photocatalyst. In this work, TiO2-Pd-PPy was prepared via one-step simultaneous photoreduction of palladium chloride and photooxidation of pyrrole monomers on TiO2 (P25). The TiO2-0.5Pd-0.6PPy exhibits higher H2 production rate of 601 μmol hâ1 under UV-visible light irradiation, which is about 3.1 and 11.7 times than that of TiO2-0.5Pd and TiO2, respectively. One-step simultaneous photo-deposited method allows for precisely locating Pd and PPy on TiO2, in other words, the places where Pd and PPy nanoparticles deposited are just the active sites that the photo-induced electrons and holes participate in the photocatalytic reaction, which is beneficial for separation of photo-induced carriers. As a result, TiO2-0.5Pd-0.6PPy synthesized by one-step simultaneous photo-deposited method displays much higher H2 production activity than TiO2-0.5Pd-0.6PPy synthesized by other methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 40, 5 October 2017, Pages 25195-25202
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 40, 5 October 2017, Pages 25195-25202
نویسندگان
Xin Li, Peng Wang, Baibiao Huang, Xiaoyan Qin, Xiaoyang Zhang, Qianqian Zhang, Xianglin Zhu, Ying Dai,