Gliding arc discharge in combination with Cu/Cu2O electrocatalysis for ammonia production

扫码查看

原文链接

万方数据

外文摘要：Highly efficient and green ammonia production is an important demand for modern agriculture.In this study,a two-step ammonia production method is developed using a gliding arc discharge in combination with Cu/Cu2O electrocatalysis.In this method,NOx is provided by the gliding arc discharge and then electrolyzed by Cu/Cu2O after alkaline absorption.The electrical characteristics,the optical characteristics and the NOx production are investigated in discharges at different input voltage and the gas flow.The dependence of ammonia production through Cu/Cu2O electrocatalysis on pH value and reduction potential are determined by colorimetric method.In our study,two discharge modes are observed.At high input voltage and low gas flow,the discharge is operated with a stable plasma channel which is called the steady arc gliding discharge mode(A-G mode).As lowering input voltage and raising gas flow,the plasma channel is destroyed and high frequency breakdown occurs instead,which is known as the breakdown gliding discharge mode(B-G mode).The optimal NOx production of 7.34 mmol h-1 is obtained in the transition stage of the two discharge modes.The ammonia yield reaches 0.402 mmol h-1 cm-2 at pH value of 12.7 and reduction potential of-1.0 V versus reversible hydrogen electrode(RHE).

外文关键词：

gliding arc dischargenitrogen fixationCu/Cu2O catalystelectrocatalytic reduction of nitrite

作者：

刘学、张佳伟、何弈、黄嘉敏、马晓萍、张潇漫、卢曼婷、辛煜

展开 >

作者单位：

Jiangsu Key Laboratory of Thin Films,School of Physical Science and Technology,Soochow University,Suzhou 215006,People's Republic of China

Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,People's Republic of China

出版年：

2024

DOI：

10.1088/2058-6272/ad2d10

等离子体科学和技术(英文版)

中国科学院合肥物质科学研究所中国力学学会

等离子体科学和技术(英文版)

影响因子：0.297

ISSN：1009-0630

年,卷(期)：2024.26(7)