کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5349817 1503625 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Charge transfer behavior of graphene-titania photoanode in CO2 photoelectrocatalysis process
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Charge transfer behavior of graphene-titania photoanode in CO2 photoelectrocatalysis process
چکیده انگلیسی
In the present study, a graphene-titania composite photoelectrode was synthesized, characterized and examined for the photoelectrocatalytic (PEC) response. The charge transfer process on the semiconductor/electrolyte interface was investigated via electrochemical impedance spectroscopy (EIS) and voltammetry. In addition, the influence of pH toward the photoanode performance was also investigated and it was noticed that a high pH condition was favorable higher photocurrent response from the EIS measurements. The main reason could be attributed to the decrease of recombination process at the photoanode with fast quenching of the photogenerated holes with OH− ions at high pH. The experiment was also run for CO2 photoreduction and increased photocurrent was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 339, 1 June 2015, Pages 22-27
نویسندگان
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