Catalyst‐enhanced plasma oxidation of n‐butane over α‐MnO2 in a temperature‐controlled twin surface dielectric barrier discharge reactor,Plasma Processes and Polymers

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Catalyst‐enhanced plasma oxidation of n‐butane over α‐MnO2 in a temperature‐controlled twin surface dielectric barrier discharge reactor
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2021-02-15 , DOI: 10.1002/ppap.202000127
Niklas Peters ₁ , Lars Schücke ₂ , Kevin Ollegott ₁ , Christian Oberste‐Beulmann ₁ , Peter Awakowicz ₂ , Martin Muhler ₁

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A twin surface dielectric barrier discharge is used for the catalyst‐enhanced plasma oxidation of 300 ppm n‐butane in synthetic air. Plasma‐only operation results in the conversion of n‐butane into CO and CO₂. Conversion is improved by increasing the temperature of the feed gas, but selectivity shifts to undesired CO. α‐MnO₂ is used as a catalyst deposited on the electrodes by spray coating with a distance of 1.5 mm between the uncoated grid lines and the square catalyst patches to prevent the inhibition of plasma ignition. The catalyst strongly influences selectivity, reaching 40% conversion and 73% selectivity to CO₂ at a specific energy density of 390 J·L⁻¹ and 140°C, which is far below the onset temperature of thermocatalytic n‐butane conversion.

中文翻译：

在温度控制的双表面介电势垒放电反应器中，在α-MnO2上催化增强正丁烷的等离子体氧化

双表面介电势垒放电用于在合成空气中将催化剂增强的300 ppm正丁烷进行等离子体氧化。仅等离子操作会导致正丁烷转化为CO和CO ₂。转换是通过增加进料气体的温度提高，但选择性转移到不希望的CO。α-MnO的₂被用作沉积在电极上，通过喷涂用1.5毫米未涂覆网格线和方形催化剂之间的距离的催化剂贴片可防止抑制等离子体点火。催化剂强烈影响选择性，在390 J·L ^-1的比能量密度下，转化率达到40％，对CO _2的选择性达到73％。140°C，远低于热催化正丁烷转化的起始温度。

更新日期：2021-04-06

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