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author:

Wu, Fan (Wu, Fan.) [1] | Li, Liqiong (Li, Liqiong.) [2] | Tan, Yanxi (Tan, Yanxi.) [3] | El-Sayed, El-Sayed M. (El-Sayed, El-Sayed M..) [4] | Yuan, Daqiang (Yuan, Daqiang.) [5]

Indexed by:

SCIE CSCD

Abstract:

Hydrogen isotope separation is a challenging task due to their similar properties. Herein, based on the chemical affinity quantum sieve (CAQS) effect, the D-2/H-2 separation performance of M-2(m-dobdc) (M = Co, Ni, Mg, Mn; m-dobdc(4)= 4,6-dioxido-1,3-benzenedicarboxylate), a series of honeycomb-shaped MOFs with high stability and abundant open metal sites, are studied by gases sorption and breakthrough experiments, in which two critical factors, gas uptake and adsorption enthalpy, are taken into consideration. Among these MOFs, Co(2()m-dobdc) exhibits the longest D-2 retention time of 180 min/g (H-2/ D-2/Ne: 1/1/98) at 77 K because of its second-highest adsorption enthalpy (10.7 kJ/mol for H-2 and 11.8 kJ/mol for D2) and the best sorption capacity (5.22 mmol/g for H-2 and 5.49 mmol/g for D-2) under low pressure of 1 kPa and 77 K), which make it a promising material for industrial hydrogen isotope separation. Moreover, the results indicate that H-2 and D-2 capacities under low pressure (about 1 kPa) dominate the final D-2/H-2 separation property of MOFs. (C) 2021 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

Keyword:

Breakthrough experiment Chemical affinity quantum sieve Hydrogen isotope separation Open metal sites Sorption and separation

Community:

  • [ 1 ] [Wu, Fan]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 2 ] [Li, Liqiong]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 3 ] [Tan, Yanxi]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 4 ] [El-Sayed, El-Sayed M.]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 5 ] [Yuan, Daqiang]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 6 ] [Wu, Fan]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 7 ] [El-Sayed, El-Sayed M.]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 8 ] [Li, Liqiong]Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China
  • [ 9 ] [El-Sayed, El-Sayed M.]Egyptian Petr Res Inst, Refining Dept, Chem Refining Lab, Cairo 11727, Egypt

Reprint 's Address:

  • [Yuan, Daqiang]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

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Source :

CHINESE CHEMICAL LETTERS

ISSN: 1001-8417

CN: 11-2710/O6

Year: 2021

Issue: 11

Volume: 32

Page: 3562-3565

8 . 4 5 5

JCR@2021

9 . 4 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:117

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 15

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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