摘要
研究了由分散法制备的两种CuCl／MCM－41 催化剂上丙烯在过量氧存在下选择催化还原NO反应，发现所制备的CuCl/AlMCM－41催化剂的反应活性明显高于CuCl／SiMCM－41．XRD，IR，TRR及ESR的研究结果表明，CuCl/AlMCM-41催化剂上的主要活性中心是与骨架铝配位的铜离子（Cu2+／Cu+）．
Abstract The selective catalytic reduction (SCR) of NO with propene over CuCl/AlMCM-41 and CuCl/ AlMCM-41 catalysts prepared by dispersion method was studied. It was found that CuCl/AlMCM-41 exhibits a substantially higher catalytic activity over CuCl/SiMCM-41. And the function of copper species in these catalysts was also investigated by means of H2-TPR, IR and ESR. The results show that the copper ions (Cu2+and Cu+ ) coordinated with framework aluminium are a main active centre for SCR of NO over CuCl/AlMCM-41 catalyst, whereas in CuCl/SiMCM41 catalyst these kinds of copper ions could not been found.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第5期923-926,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:29503017)
高等学校骨干教师资助项目(2000年)资助.
