Sm^(2+)ions boost ammonia electrooxidation reaction on samarium oxide anode for hydrogen generation in non-aqueous electrolyte  

作　　者：Xingyu Liu Xue Yang Han Sun Zekai Yang Haijun Chen 

机构地区：[1]Tianjin Key Laboratory of Optoelectronic Thin Film Devices and Technology,College of Electronic Information and Optical Engineering,Nankai University,Tianjin 300350,China

出　　处：《Nano Research》2024年第7期5856-5862,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.22076081);China Postdoctoral Science Foundation(No.2022M721704).

摘　　要：Ammonia has garnered recognition as a zero-carbon fuel due to its high-density hydrogen storage capacity and its convenience for storage and transportation.To address the challenges associated with the direct usage of ammonia,the development of NH_(3)-to-H_(2)conversion technologies has emerged as a promising and effective approach.Herein,we present for the first time that crystallized Sm_(2)O_(3−x)electrodes demonstrate high and stable electrocatalytic activities,including N_(2)evolution rate and Faradaic efficiency,for ammonia electrolysis in a non-aqueous electrolyte.It was observed that Sm^(2+)ions in samarium oxide play an indispensable role in the ammonia electrooxidation reaction on the anodes.Furthermore,the mechanism of ammonia electrooxidation has also been elucidated,laying the foundation for a better understanding of the relationship between local structure and electrochemical properties in order to facilitate research on Pt-free electrocatalysts for the electrolysis of ammonia into H_(2).

关 键 词：NH_(3)-to-N_(2)conversion ammonia electrooxidation reaction ammonia electrolysis non-aqueous electrolyte samarium oxide 

分 类 号：O64[理学—物理化学]