Increasing the selectivity to ethylene in the MTO reaction by enhancing diffusion limitation in the shell layer of SAPO-34 catalyst. - Zhong, Jiawei; Han, Jingfeng; Wei, Yingxu; Xu, Shutao; He, Yanli; Zheng, Yijun; Ye, Mao; Guo, Xinwen; Song, Chunshan; Liu, Zhongmin (Chemical Communications, 2018)