Unveiling multi-element synergy in polymetallic oxides for efficient nitrate reduction to ammonia
作者机构：Nanoyang GroupTianjin Key Laboratory of Advanced Carbon and Electrochemical Energy StorageSchool of Chemical Engineering and Technologyand Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin UniversityTianjin300072China National Industry-Education Integration Platform of Energy StorageTianjin UniversityTianjin300072China Haihe Laboratory of Sustainable Chemical TransformationsTianjin300192China Institute of Energy Materials ScienceUniversity of Shanghai for Science and TechnologyShanghai200093China
基 金：supported by the National Natural Science Foundation of China(51972223,52202279) the Natural Science Foundation of Tianjin(20JCYBJC01550) the National Industry-Education Integration Platform of Energy Storage the Fundamental Research Funds for the Central Universities the Haihe Laboratory of Sustainable Chemical Transformations
出 版 物：《Science China Materials》 (中国科学（材料科学）（英文版）)
年 卷 期：2024年第67卷第9期
页 码：2941-2948页
摘 要：Electrocatalytic nitrate reduction reaction is considered as a promising and sustainable method for ammonia ***,the selectivity and yield rate of ammonia are limited by the competitive hydrogen evolution reaction and the complex eight-electron transfer ***,we developed a(FeCoNiCu)Ox/CeO_(2)polymetallic oxide electrocatalyst for effective nitrate reduction to *** synergistic effects among the multiple elements in the electrocatalyst were clearly elucidated by comprehensive ***,Cu acted as the active site for reducing nitrate to nitrite,and Co facilitated the subsequent reduction of nitrite to ammonia,while Fe and Ni promoted water dissociation to provide ***,the incorporation of CeO_(2)increased the active surface area of(FeCoNiCu)Ox,resulting in an improved ammonia yield rate to meet industrial ***,the(FeCoNiCu)Ox/CeO_(2)electrocatalyst achieved an ammonia current density of 382 mA cm^(-2)and a high ammonia yield rate of 30.3 mg h^(-1)cm^(-2)with a long-term *** work offers valuable insights for the future design of highly efficient multi-element electrocatalysts.
主 题 词：multi-element synergy electrocatalysis ammonia synthesis polymetallic oxides rapid Joule-heating method
学科分类：081702[081702] 081705[081705] 08[工学] 0817[工学-轻工类] 080502[080502] 0805[工学-能源动力学]
核心收录：
D O I：10.1007/s40843-024-3017-4
馆 藏 号：203131568...
