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Title: Metal–Organic Framework Containing Planar Metal-Binding Sites: Efficiently and Cost-Effectively Enhancing the Kinetic Separation of C2H2/C2H4

Journal Article · · Journal of the American Chemical Society
ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [2]
  1. Ningbo Univ. (China)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Huazhong Univ. of Science and Technology, Hubei (China); Texas A & M Univ., College Station, TX (United States)
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One of the emerging problems plaguing the chemical industry today is the efficient and cost-effective separation of C2 hydrocarbons. In order to help address this problem, we report a new material, NbU-1, constructed by extremely cheap starting materials. The special structural characteristics of NbU-1 such as the planar, mixed-valence copper clusters and Lewis-basic adsorption channels enforce interactions with acetylene molecules that lead to the highest kinetic separation efficiency for C2H2/C2H4. Via DFT-D calculations, it is indicated that C2H2 molecules are adsorbed onto the two adjacent Cu(I) centers, but not the usual single open metal sites of Cu centers. Here, the reported results not only provide information for a deep investigation into the separation mechanism but also offer an alternative strategy for preparing cost-effective materials that can perform highly efficient separations of light hydrocarbons.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Gas Separations Relevant to Clean Energy Technologies (CGS); Univ. of California, Oakland, CA (United States)
Sponsoring Organization:
K. C. Wong Magna Fund; National Natural Science Foundation of China; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0001015
OSTI ID:
1566596
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 9 Vol. 141; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

Efficient Separation of cis ‐ and trans ‐1,2‐Dichloroethene Isomers by Adaptive Biphen[3]arene Crystals journal June 2019
Efficient Separation of cis - and trans -1,2-Dichloroethene Isomers by Adaptive Biphen[3]arene Crystals journal June 2019
Current Status of Microporous Metal–Organic Frameworks for Hydrocarbon Separations journal October 2019
Enhancing C 2 H 2 /C 2 H 4 separation by incorporating low-content sodium in covalent organic frameworks journal January 2019
Enhancing the separation efficiency of a C 2 H 2 /C 2 H 4 mixture by a chromium metal–organic framework fabricated via post-synthetic metalation journal January 2020
Integrating multiple adsorption sites and tortuous diffusion paths into a metal–organic framework for C 3 H 4 /C 3 H 6 separation journal January 2019
Control of zeolite pore interior for chemoselective alkyne/olefin separations journal May 2020

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
adsorption
carbon capture
cytosine
materials
materials and chemistry by design
membrane
metal organic frameworks
mixtures
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)