Self-assembled iron-containing mordenite monolith for carbon dioxide sieving

• DOI: 10.1126/science.aax5776
• Publication Date: 2021-07-15T19:10:17Z
• Authors: Yu Zhou; Jianlin Zhang; Lei Wang; Xili Cui; Xiaoling Liu; Sie Shing Wong; Hua An; Ning Yan; Jingyan Xie; Cong Yu; Peixin Zhang; Yonghua Du; Shibo Xi; Lirong Zheng; Xingzhong Cao; Yajing Wu; Yingxia Wang; Chongqing Wang; Haimeng Wen; Lei Chen; Huabin Xing; Jun Wang
• Keywords: Monolith; Mordenite

The development of low-cost, efficient physisorbents is essential for gas adsorption and separation; however, the intrinsic tradeoff between capacity selectivity, as well unavoidable shaping procedures conventional powder sorbents, greatly limits their practical separation efficiency. Herein, an exceedingly stable iron-containing mordenite zeolite monolith with a pore system precisely narrowed microchannels was self-assembled using one-pot template- binder-free process. Iron-containing monoliths that could be used directly industrial application afforded record-high volumetric carbon dioxide uptakes (293 219 cubic centimeters per centimeter material at 273 298 K, respectively, 1 bar pressure); excellent size-exclusive molecular sieving over argon, nitrogen, methane; recyclability; good moisture resistance capability. Column breakthrough experiments process simulation further visualized high