中南民族大学学报:自然科学版2012,Vol.31Issue(1):1-7,7.
铜掺杂SBA-15的pH调节法直接合成及其在N_2O分解反应中的催化性能
Copper Containing SBA-15 Prepared through pH Modification Method and Its Catalytic Activity for N_2 O Decomposition
摘要
Abstract
Copper-substituted SBA-15(Cu/SBA-15) mesoporous materials were directly synthesized under acidic conditions by a "pH modification method" using hexamethylenetetramine(HMTA) as an internal pH-modifier.The synthesized material has been characterized by XRD,SEM-EDX,TEM and FT-IR.The results showed that the resultant materials exhibit highly ordered hexagonal mesoporous structures.In addition,the HMTA also strongly affected the incorporation of copper in the silica framework.During hydrothermal process the HMTA dissociates to release NH3 and increases the internal pH value and helps to introduce more copper into SBA-15 framework.Catalytic screenings reveal that Cu/SBA-15 materials can be used as potential catalyst for the decomposition of N2O.The Cu/SBA-15(110) have good catalytic activity causing 50% of N2O to decomposed at 600°C.关键词
铜掺杂SBA-15/环六亚甲基四胺/pH调节法/N2O分解反应Key words
Cu/SBA-15/hexamethylenetetramine/pH modification/N2O decomposition分类
化学化工引用本文复制引用
Mohd Haizal Mohd Husin,Mohd Ridzuan Nordin,李金林,刘光荣,Chin Sim Yee..铜掺杂SBA-15的pH调节法直接合成及其在N_2O分解反应中的催化性能[J].中南民族大学学报:自然科学版,2012,31(1):1-7,7.基金项目
马来西亚学术人才发展项目 ()
马来西亚彭亨大学研究项目 ()