Frontiers of Chemical Science and Engineering >
CuAlCl4 doped MIL-101 as a high capacity CO adsorbent with selectivity over N2
Received date: 21 Nov 2013
Accepted date: 18 Mar 2014
Published date: 11 Oct 2014
Copyright
A CuAlCl4 doped metal organic framework, CuAlCl4@MIL-101, was prepared by introducing CuAlCl4 into the pores of MIL-101 for the selective adsorption of CO over N2. The CuAlCl4 molecules were evenly distributed into various pores sizes and did not change the intrinsic structure of the MIL-101. Isotherms for CO and N2 adsorption at 298 K showed that the CO capacity on CuAlCl4@MIL-101 was much higher than that on virgin MIL-101, whereas the N2 capacity decreased. The selectivity for CO over N2 improved from 4.64 to 31.5 at 298 K and 1 bar. The CuAlCl4@MIL-101 adsorbent displayed outstanding CO adsorption stability and the adsorbent could be regenerated by applying a simple vacuum of 4 mmHg.
Key words: metal organic framework; CO adsorbent; high stability; high selectivity; CuAlCl4
Yixiu WANG , Chao LI , Fanchao MENG , Shuling LV , Jintao GUO , Xiaoqin LIU , Chongqing WANG , Zhengfei MA . CuAlCl4 doped MIL-101 as a high capacity CO adsorbent with selectivity over N2[J]. Frontiers of Chemical Science and Engineering, 2014 , 8(3) : 340 -345 . DOI: 10.1007/s11705-014-1438-6
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