燃料化学学报（中英文）2025，Vol.53Issue(7)：1050-1060,11.DOI:10.1016/S1872-5813(24)60523-2
不同处理调变Cu-Al尖晶石催化甲醇水蒸气重整制氢的缓释行为特征
Characteristics of the sustained release of Cu-Al spinel pretreated by different methods for hydrogen production from methanol steam reforming
摘要
Abstract
In this paper,three methods,namely hydrothermal,Al modification and acid washing,were used to modify Cu-Al spinel catalyst,and then the catalysts were characterized by XRD,BET,H2-TPR and XPS techniques.In conjunction with the performances of methanol steam reforming,the effects of surface composition and structure on the catalytic behaviors of the sustained release process were investigated.The results showed that new crystalline phase formed and surface species changed after the hydrothermal treatment,while Al-modification and acid-treated catalysts didn't change the crystalline phase composition,but the surface Al/Cu ratio and the distribution of Cu species changed.Based on the characterization data of the released Cu,it could be inferred that all the three treatments led to variations of the microscopic surface structure,thus exhibiting different sustained release catalytic behaviors.Specifically,the hydrothermal treatment enhanced the catalytic activity,while Al-modification and acid-treated catalysts showed inferior activity but showing obvious sustained release behavior.The findings of this paper provide a basis for further studies on the surface modification of the Cu-Al spinel catalyst.关键词
铜铝尖晶石/催化剂处理/表面结构/缓释行为Key words
Cu-Al spinel/catalyst treatment/surface structure/sustained release behavior分类
化学化工引用本文复制引用
吴坤云,高志贤,苏实宇,王霞,赵瑛祁,张财顺,韩蛟,张跃宏,侯晓宁,张磊..不同处理调变Cu-Al尖晶石催化甲醇水蒸气重整制氢的缓释行为特征[J].燃料化学学报（中英文）,2025,53(7):1050-1060,11.基金项目
The project was supported by National Natural Science Foundation of China(22379059),Applied Basic Research Program Project of Liaoning Province(2023JH2/101300224),Basic Scientific Research Project of Liaoning Provincial Department of Education(LJ212410148019).国家自然科学基金(22379059),辽宁省应用基础研究计划(2023JH2/101300224)和辽宁省教育厅基本科研项目(LJ212410148019)资助 （22379059）
