One-step electrocatalytic synthesis of ammonia and acetone from nitrogen and isopropanol in an ionic liquid,Green Chemistry

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One-step electrocatalytic synthesis of ammonia and acetone from nitrogen and isopropanol in an ionic liquid
Green Chemistry ( IF 9.3 ) Pub Date : 2021-09-03 , DOI: 10.1039/d1gc02873a
Qikun Zhang ₁ , Ya'nan Zhao ₁ , Liping Yu ₁ , Xiaoyang Zhang ₁ , Yiling Bei ₂ , Bo Tang ₁

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Electrocatalysis is an environmentally friendly synthesis method that overcomes thermodynamic limitations and enables some reactions usually requiring high temperature and high pressure to be realized under ambient conditions. The one-step electrochemical synthesis of ammonia and acetone under ambient conditions was realized using an Fe-modified graphite rod or an Fe-modified stainless steel mesh as the working electrode, nano-Fe as the catalyst, N₂ and isopropanol as the raw materials, and an ionic liquid (a trihexyl tetradecyl phosphine hexafluorophosphate; [P_6,6,6,14][F₆P]) as the electrolyte. The NH₃ yield, faradaic efficiency, and acetone yield were 103.6 mg m⁻² h⁻¹, 20%, and 1060.4 mg m⁻² h⁻¹, respectively, for the Fe-modified graphite rod and 56.0 mg m⁻² h⁻¹, 60%, and 573.2 mg m⁻² h⁻¹, respectively, for the Fe-modified stainless steel mesh. This is a “green” and clean synthesis of ammonia that provides a new method to synthesize economic products from inexpensive nitrogen.

中文翻译：

氮和异丙醇在离子液体中一步电催化合成氨和丙酮

电催化是一种环境友好的合成方法，它克服了热力学限制，使一些通常需要高温高压的反应在环境条件下实现。以Fe改性石墨棒或Fe改性不锈钢网为工作电极，纳米Fe为催化剂，N ₂和异丙醇为原料，在常温条件下实现氨和丙酮的一步电化学合成，和离子液体（三己基十四烷基膦六氟磷酸盐；[P _6,6,6,14 ][F ₆ P]）作为电解质。NH ₃产率、法拉第效率和丙酮产率为103.6 mg m ^-2 h ^-1、20% 和 1060.4 mg m ^-2 h ^-1分别用于 Fe 改性石墨棒和 56.0 mg m ^-2 h ^-1、60% 和 573.2 mg m ^-2 h ^-1分别用于Fe改性不锈钢网。这是一种“绿色”且清洁的氨合成方法，为从廉价的氮合成经济产品提供了一种新方法。

更新日期：2021-09-09

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