title: Ammonia capture and flexible transformation of M-2(INA) (M=Cu, Co, Ni, Cd) series materials.
abstract: With the conflicting problems of pollution due to ammonia emissions and the demand for ammonia, we propose M-2(INA) (M=Cu, Co, Ni, Cd) (INA=isonicotinic acid), a series of materials that exhibit flexible conversion in ammonia adsorption. They can capture both wet and dry ammonia for recycling. The materials were obtained by dehydration of coordination materials M(INA)2(H2O)4 (M=Cu, Co, Ni, Cd) (150°C) at atmospheric pressure for 2h. M-2(INA) could reversibly transform to the stable coordination compounds M(INA)2(H2O)2(NH3)2 by adsorbing ammonia in the presence of moisture. The capacity for pure ammonia could reach 12-13mmol/g. Importantly, these materials could stably retain NH3 at a maximum temperature of 80°C and could regenerate below 150°C with no performance loss.
authors.affiliation: Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024 Shanxi, PR China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024 Shanxi, PR China.
authors.forename: Libo
authors.initials: L
authors.lastname: Li
authors.affiliation: Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024 Shanxi, PR China. Electronic address: Jpli211@hotmail.com.
authors.forename: Jinping
authors.initials: J
authors.lastname: Li
authors.affiliation: Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024 Shanxi, PR China.
authors.forename: Kun
authors.initials: K
authors.lastname: Ouyang
authors.affiliation: Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024 Shanxi, PR China. Electronic address: Yangjiangfeng@tyut.edu.cn.
authors.forename: Jiangfeng
authors.initials: J
authors.lastname: Yang
keywords: Ammonia capture; Flexible conversion; Metal organic frameworks; Moisture; PM(2.5)