Cu2O@HKUST-1前驱物法合成CuO中空管状超级结构及其CO催化氧化性能

摘要

A new type of hollow tubular superstructure composed of CuO nanosheets was fabricated from Cu2O@HKUST-1(HKUST-1 =Cu3(BTC)2, BTC3- =benzene-1,3,5-tricarboxylate) nanowire through the hydrolysis of HKUST-1 shell and oxidation etching of Cu2O core.The as-obtained tubular CuO superstructures possess a large Brunauer-Emmett-Teller ( BET ) surface area ( 56.3 m2/g ) and exhibit high catalytic performance in CO oxidation.The complete CO conversion temperature is 200℃.At 190℃, the value of CO conversion efficiency is 17.3 mmolCO/(gCuO· h).%以Cu2O@HKUST-1(HKUST-1=Cu3(BTC)2,BTC3-=均苯三甲酸离子)线状核@壳结构为前驱体,通过在碱性条件下原位水解HKUST-1壳、氧化刻蚀Cu2O核的方法得到了一种新型的、由相互交错的CuO纳米片构筑的、中空管状的超级结构,并研究了其对CO氧化的催化活性.结果表明,这种中空的CuO管状超级结构具有较大的比表面积(56.3 m2/g)和可观的催化活性,催化剂对CO的完全转化温度为200℃,190℃时转化效率为17.3 mmolCO/(gCuO·h).