大连工业大学学报2026，Vol.45Issue(4)：260-267,8.DOI:10.19670/j.cnki.dlgydxxb.2026.0405
UIO-66(Ce)衍生的Fe/CeO2催化剂制备及氨分解性能
Preparation of Fe/CeO2 catalyst from UiO-66(Ce)for ammonia decomposition
摘要
Abstract
Technology of ammonia decomposition provides a promising pathway for hydrogen storage and large-scale production,but developing high-activity,economical non-noble metal catalysts remains a core bottleneck for its industrial application.To address this problem,the metal-organic framework UiO-66(Ce)was prepared via the solvothermal method,while the CeO2 support(CeO2-U)was obtained by high-temperature pyrolysis,which was further loaded with Fe to construct Fe/CeO2-U catalysts.Their decomposition activity to ammonia and the effect of Fe loading ratio were evaluated.Results showed that the decomposition ratio of ammonia by 20Fe/CeO2-U was up to 93％under the conditions of reaction temperature at 600 ℃ and weight hourly space velocity(WHSV)of 12 000 mL/(h·g),which was significantly higher than 82％by the 20Fe/CeO2 prepared through the traditional hydrothermal method.Furthermore,50Fe/CeO2-U exhibited the best activity w ith 100％decomposition ratio of ammonia.Stability tests showed that 50Fe/CeO2-U maintained 97％conversion after 40 h of continuous operation at 600 ℃ and 12 000 mL/(h·g),confirming its excellent structural stability and anti-deactivation ability.关键词
氨分解/UiO-66(Ce)/催化剂/氧化铈Key words
ammonia decomposition/UiO-66(Ce)/catalyst/CeO2分类
化学化工引用本文复制引用
肖国旺,王振宇,李志伟,吴胜寒,郝敬爱..UIO-66(Ce)衍生的Fe/CeO2催化剂制备及氨分解性能[J].大连工业大学学报,2026,45(4):260-267,8.基金项目
辽宁省教育厅基本科研项目(LJKM20220880). （LJKM20220880）
