(CH3)(2)NH-Assisted Synthesis of High-Purity Ni-HKUST-1 for the Adsorption of CO2, CH4, and N-2
(CH3)(2)NH-Assisted Synthesis of High-Purity Ni-HKUST-1 for the Adsorption of CO2, CH4, and N-2
复制标题
(CH3)(2)NH辅助合成高纯度Ni-HKUST-1用于吸附CO2、CH4和N-2
DOI：
10.1002/ejic.201701393
复制
发表时间：
2018
影响因子：
2.3
通讯作者：
Li Jinping
中科院分区：
文献类型：
--
作者：
Jia Xiaoxia;Yuan Ning;Wang Li;Yang Jiangfeng;Li Jinping
通过（CH 3）2NH-辅助方法合成了具有与Cu-BTC（HKUST-1）相同拓扑结构的Ni-HKUST-1。首次使用NiCl 2成功合成了高纯度（> 90%）、产率（85%）和BET表面积（1088 m2/g）的Ni‐HKUST‐1。采用容量法测定了CO2、CH 4和N2在Ni‐HKUST‐1上的纯组分吸附等温线，并根据理想吸附溶液理论估算了CO2/CH 4、CH 4/N2和CO2/N2二元混合物的分离选择性。在273 K和1 atm下，CO2/CH 4、CH 4/N2和CO2/N2的选择性分别为14.49、5.36和183.41，对CO2和CH 4的吸附容量分别为223.87和67.89 cm 3/g。这是在分离CO2、CH 4和N2中的高选择性和吸附能力的罕见证明。
Ni‐HKUST‐1, with the same topological structure as Cu‐BTC (HKUST‐1), was synthesized by a (CH3)2NH‐assisted method. Ni‐HKUST‐1 with high purity (> 90 %), yield (85 %), and BET surface area (1088 m2/g) was successfully synthesized for the first time by using NiCl2. The pure‐component adsorption isotherms of CO2, CH4, and N2on Ni‐HKUST‐1 were measured by the volumetric method and the data used to estimate the separation selectivity for CO2/CH4, CH4/N2, and CO2/N2binary mixtures according to the ideal adsorbed solutions theory. At 273 K and 1 atm, the selectivities for CO2/CH4, CH4/N2, and CO2/N2were 14.49, 5.36, and 183.41, respectively, and the adsorption capacities for CO2and CH4were 223.87 and 67.89 cm3/g, respectively. This is a rare demonstration of both high selectivity and adsorption capacity in the separation of CO2, CH4, and N2.