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Nitrogen reduction to ammonia at ambient conditions using hydrochar prepared from cigarette filters as catalyst
International Journal of Hydrogen Energy ( IF 8.1 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.ijhydene.2020.05.203
Kai Li , Yun-Quan Liu , Bing Cui , Dewen Sima , Duo Wang , Yueyuan Ye , Shuirong Li , Zhifeng Zheng

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.



中文翻译:

使用香烟过滤嘴制得的水炭在环境条件下将氮还原为氨

通过电化学方法合成氨是Haber-Bosch工艺的环保替代方案。在这项工作中,由新鲜香烟过滤嘴制成的碳材料被用作氨的电化学合成的工作电极。发现TiO 2存在于香烟过滤嘴的炭中,其质量负载为0.8重量%,并且对炭的催化性能显示出积极的影响。体面的NH 3产量为6.02μgmg猫。相对于在N 2饱和的0.05 MH 2 SO 4中的可逆氢电极(RHE),在-0.1 V时达到-1 h -1和FE为8.96%。实验设计证明,炭中所含的TiO 2确实在氨合成的催化反应中发挥了重要作用。

更新日期:2020-08-06
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