Nitrogen reduction to ammonia at ambient conditions using hydrochar prepared from cigarette filters as catalyst
| Autor: | Kai Li, Duo Wang, Zhifeng Zheng, Dewen Sima, Shuirong Li, Yueyuan Ye, Yun-Quan Liu, Bing Cui |
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| Rok vydání: | 2020 |
| Předmět: |
Working electrode
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Nitrogen 0104 chemical sciences Catalysis Ammonia production Ammonia chemistry.chemical_compound Fuel Technology chemistry Reversible hydrogen electrode 0210 nano-technology Carbon Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 45:20875-20882 |
| ISSN: | 0360-3199 |
| Popis: | Ammonia synthesis via the electrochemical method is an environmentally-friendly alternative to the Haber-Bosch process. In this work, carbon materials made from fresh cigarette filters were used as the working electrode for the electrochemical synthesis of ammonia. TiO2 was found to exist in the hydrochar of cigarette filters with a mass loading of 0.8 wt%, and showed positive impact on the catalytic performance of the hydrochar. A decent NH3 yield of 6.02 μg mgcat.−1 h−1 and a FE of 8.96% were achieved at −0.1 V versus reversible hydrogen electrode (RHE) in N2-saturated 0.05 M H2SO4. The design of experiments proved that TiO2, which was contained in the hydrochar, indeed played a great role in the catalytic reaction of ammonia synthesis. |
| Databáze: | OpenAIRE |
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