Plasma‐enhanced NH3 synthesis over activated carbon‐based catalysts: Effect of active metal phase,Plasma Processes and Polymers

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Plasma‐enhanced NH3 synthesis over activated carbon‐based catalysts: Effect of active metal phase
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2020-09-01 , DOI: 10.1002/ppap.202000072
Xueli Hu ₁ , Xinbo Zhu ₁ , Xiqiang Wu ₁ , Yuxiang Cai ₂ , Xin Tu ₂

Affiliation

In this study, plasma‐enhanced NH₃ synthesis over a series of M/AC (M = Ru, Co, Ni, and Fe) catalysts was investigated. The combination of the plasma and activated carbon (AC) enhanced the reaction performance compared with the reaction using plasma alone. The doping of active metal on AC further improved the reaction performance by up to 37.3%. The highest NH₃ concentration of 3,026.5 ppm was obtained over Ru/AC at a specific input energy (SIE) of 12.5 kJ/L, followed by Co/AC, Fe/AC, and Ni/AC. The highest energy efficiency of 0.72 g/kWh was achieved at an SIE of 8.0 kJ/L when using the Ru/AC catalyst. Catalyst characterizations showed that the basicity of the M/AC catalysts plays an important role in the plasma‐enhanced catalytic synthesis of NH₃. The reaction mechanism in the plasma‐enhanced NH₃ synthesis was also discussed.

中文翻译：

活性炭基催化剂上的等离子体增强的NH3合成：活性金属相的影响

在这项研究中，研究了一系列M / AC（M = Ru，Co，Ni和Fe）催化剂上的等离子体增强的NH ₃合成。与仅使用等离子体的反应相比，等离子体和活性炭（AC）的结合提高了反应性能。活性金属在AC上的掺杂进一步将反应性能提高了37.3％。在Ru / AC上以12.5 kJ / L的比输入能量（SIE）获得的最高NH ₃浓度为3,026.5 ppm，然后是Co / AC，Fe / AC和Ni / AC。当使用Ru / AC催化剂时，在8.0 kJ / L的SIE下获得0.72 g / kWh的最高能效。催化剂表征表明，M / AC催化剂的碱性在等离子体增强的NH ₃催化合成中起重要作用。还讨论了等离子体增强NH ₃合成中的反应机理。

更新日期：2020-09-01

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