کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6600846 1423967 2018 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical synthesis of ammonia using ruthenium-platinum alloy at ambient pressure and low temperature
ترجمه فارسی عنوان
سنتز الکتروشیمیایی آمونیاک با استفاده از آلیاژهای روتنیم-پلاتین در دمای محیط و دمای محیط
کلمات کلیدی
الکتروتالیز، کاهش نیتروژن، روتنیم پلاتین، آلیاژ آمونیاک تولید،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Ammonia was electrochemically produced from nitrogen and water using a ruthenium-platinum (RuPt) alloy catalyst cathode and a nickel anode at ambient pressure and room temperature. The rate of ammonia formation was 5.1 × 10−9 gNH3 s−1 cm−2 with a 13.2% faradaic efficiency at an applied potential of 0.123 V vs. RHE; it reached 1.08 × 10−8 gNH3 s−1 cm−2 at 0.023 V. Ammonia production was investigated under selected potentials and temperatures. Real-time direct electrochemical mass spectrometric (DEMS) analysis of the evolved gases was performed at various applied potentials. In general, the mass-to-charge ratio signals of hydrogen and ammonia were detected, and their intensities increased with increasing potentials; however, there was no trace of a hydrazine signal. Compared to metallic ruthenium and platinum catalysts, RuPt showed a synergistic effect toward electrochemical formation of ammonia due to co-catalysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 90, May 2018, Pages 96-100
نویسندگان
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