Chen Y, Li L, Li J, Ouyang K, Yang J. Ammonia capture and flexible transformation of M-2(INA) (M=Cu, Co, Ni, Cd) series materials.
JOURNAL OF HAZARDOUS MATERIALS 2016;
306:340-347. [PMID:
26780590 DOI:
10.1016/j.jhazmat.2015.12.046]
[Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/22/2015] [Accepted: 12/23/2015] [Indexed: 06/05/2023]
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.
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