Fe-Mo双金属催化剂的制备及其合成氨性能研究  

Preparation of Fe-Mo bimetallic catalysts and their performance in ammonia synthesis

作　　者：陈辉 马冬则 崔金金 杨杰 林万明 CHEN Hui;MA Dongze;CUI Jinjin;YANG Jie;LIN Wanming(Shanxi University of Electronic Science and Technology,Linfen 041000,Shanxi,China)

机构地区：[1]山西电子科技学院,山西临汾041000

出　　处：《能源化工》2024年第5期21-25,共5页Energy Chemical Industry

基　　金：山西省教育厅科技创新项目(2023L455)。

摘　　要：研究了Fe-Mo双金属氧化物作为催化剂进行NRR合成氨反应,通过模板法和水热法制备的Fe-Mo/CMS催化剂在NRR合成氨反应中表现出较高的活性和稳定性,在水热时Fe/Mo物质的量比为3∶2制备Fe-Mo/CMS催化剂的产氨速率与库伦效率最高可达1.25×10^(-8)mol/(s·cm^(2))和49.15%;在反应11 h后仍然保持较高的活性,其产氨速率可达3.14×10^(-9)mol/(s·cm^(2)),同时通过XRD、TEM及HRTEM表征分析出催化剂的活性组分主要为FeMoO_(4)与Fe_(2)O_(3)。Fe-Mo bimetallic oxide as catalysts for NRR ammonia synthesis reaction is studied.Fe-Mo/CMS catalysts prepared by template method and hydrothermal method exhibit high activity and stability in the NRR ammonia synthesis reaction.The ammonia production rate and Coulombic efficiency of Fe-Mo/CMS catalysts prepared with a Fe/Mo molar ratio of 3∶2 under hydrothermal conditions can reach up to 1.25×10^(-8)mol/(s·cm^(2))and 49.15%.After 11 hours of reaction,the catalysts still maintain high activity and their ammonia production rate can reach 3.14×10^(-9)mol/(s·cm^(2)).Meanwhile,XRD,TEM,and HRTEM characterization analysis confirm that the active components of the catalysts are mainly FeMoO_(4) and Fe_(2)O_(3).

关 键 词：催化剂 NRR合成氨 水热法 

分 类 号：TQ426.28[化学工程]