کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5147036 1497347 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ru-based multifunctional mesoporous catalyst for low-pressure and non-thermal plasma synthesis of ammonia
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Ru-based multifunctional mesoporous catalyst for low-pressure and non-thermal plasma synthesis of ammonia
چکیده انگلیسی
The non-thermal plasma (NTP) allows the synthesis of ammonia, one of the major hydrogen carriers, at a lower temperature and pressure than the traditional Haber-Bosch process. In this study, we report the synthesis of ammonia using NTP, and a Ru-based, multifunctional catalytic system deposited on mesoporous Si-MCM-41. Various surface characterization methods were used to analyze the catalyst. For the ammonia synthesis results, we determined that the synthesis efficiency increased in the high frequency zone (>20,000 Hz). The effects of different experimental parameters were studied and the highest ammonia synthesis efficiency achieved was 1.7 g/kWh at 5000 V and 26,000 Hz. Results were analyzed in the context of several synergetic effects including the plasma forming mechanism, discharge effects of the catalysts, plasma shielding effects of the mesoporous structure, and other plasma-catalyst interactions. Lastly, a new concept of a two-step non-thermal plasma ammonia synthesis method was also proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 30, 27 July 2017, Pages 19056-19066
نویسندگان
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