supported by the National Natural Science Foundation of China (Nos.22072027,91645201);the Project of the Science and Technology Commission of Shanghai Municipality,China (No.19DZ2270100);the Project of the Shanghai Research Institute of Petrochemical Technology SINOPEC (No.33750000-19-ZC0607-0005).
A series of Sm-doped CeO_(2)/Beta composite catalysts with various Sm/Ce atomic ratios(0.1–0.4) were prepared by an incipient impregnation method, followed by calcination at 650 ℃. They were characterized by X-ray d...
the funding from National Key Research and Development Program of China(No.2017YFC0211302);National Natural Science Foundation for Youth of China(Grant No.21908207);China Postdoctoral Science Foundation(No.2020M670659);Shanxi Province Science Foundation for Youths(Nos.201901D211224 and 201801D221351).
K ions were introduced onto Cu/SAPO-34 catalysts via the ion-exchange process in order to improve their stability under low-temperature hydrothermal aging.The changes in structure and copper-species contents of these ...