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(CH 3 ) 2 NH‐Assisted Synthesis of High‐Purity Ni‐HKUST‐1 for the Adsorption of CO 2 , CH 4 , and N 2
Author(s) -
Jia Xiaoxia,
Yuan Ning,
Wang Li,
Yang Jiangfeng,
Li Jinping
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201701393
Subject(s) - chemistry , adsorption , selectivity , yield (engineering) , analytical chemistry (journal) , nuclear chemistry , crystallography , organic chemistry , catalysis , materials science , metallurgy
Ni‐HKUST‐1, with the same topological structure as Cu‐BTC (HKUST‐1), was synthesized by a (CH 3 ) 2 NH‐assisted method. Ni‐HKUST‐1 with high purity (> 90 %), yield (85 %), and BET surface area (1088 m 2 /g) was successfully synthesized for the first time by using NiCl 2 . The pure‐component adsorption isotherms of CO 2 , CH 4 , and N 2 on Ni‐HKUST‐1 were measured by the volumetric method and the data used to estimate the separation selectivity for CO 2 /CH 4 , CH 4 /N 2 , and CO 2 /N 2 binary mixtures according to the ideal adsorbed solutions theory. At 273 K and 1 atm, the selectivities for CO 2 /CH 4 , CH 4 /N 2 , and CO 2 /N 2 were 14.49, 5.36, and 183.41, respectively, and the adsorption capacities for CO 2 and CH 4 were 223.87 and 67.89 cm 3 /g, respectively. This is a rare demonstration of both high selectivity and adsorption capacity in the separation of CO 2 , CH 4 , and N 2 .