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Title: Incorporating Heavy Alkanes in Metal–Organic Frameworks for Optimizing Adsorbed Natural Gas Capacity

Journal Article · · Chemistry - A European Journal
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [4]; ORCiD logo [5]
  1. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry; framergy Inc., College Station, TX (United States)
  3. framergy Inc., College Station, TX (United States)
  4. Tianjin Univ. of Technology (China). Inst. of New Energy Materials & Low Carbon Technology, School of Material Science & Engineering
  5. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry; Texas A & M Univ., College Station, TX (United States). Dept. of Materials Science and Engineering
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Metal-Organic Frameworks (MOFs) as methane adsorbents are highly promising materials for applications such as methane-powered vehicles, flare gas capture, and field natural gas separation. Pre- and post-synthetic modification of MOFs have been known to help improve both the overall methane uptake as well as the working capacity. Herein, we introduce a post-synthetic modification strategy to non-covalently modify MOF adsorbents for the enhancement of the natural gas uptake for the MOF material. In our study, we doped PCN-250 adsorbents with C10 alkane and C14 fatty acid, investigating their impact on the methane uptake capabilities. We found that even trace amount of heavy hydrocarbons can considerably enhance the raw methane uptake of the MOF while still being regenerable. The doped hydrocarbons are presumably located at the mesoporous defects of PCN-250, thus optimizing the framework-methane interactions. Finally, these findings reveal a general approach which can be used to modify the MOF absorbents, improving their ability to be sustainable and renewable natural gas adsorption platforms.

Research Organization:
Energy Frontier Research Centers, Washington D.C. (EFRC) (United States). Center for Gas Separations Relevant to Clean Energy Technologies (CGS); Univ. of California, Oakland, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001015; 1632486
OSTI ID:
1566407
Alternate ID(s):
OSTI ID: 1479156
Journal Information:
Chemistry - A European Journal, Vol. 24, Issue 64; ISSN 0947-6539
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (4)

Modulation versus Templating: Fine‐Tuning of Hierarchally Porous PCN‐250 Using Fatty Acids To Engineer Guest Adsorption journal July 2019
Modulation versus Templating: Fine‐Tuning of Hierarchally Porous PCN‐250 Using Fatty Acids To Engineer Guest Adsorption journal September 2019
In Situ Tracking of Dynamic NO Capture through a Crystal-to-Crystal Transformation from a Gate-Open-Type Chain Porous Coordination Polymer to a NO-Adducted Discrete Isomer journal February 2019
A microporous metal–organic framework with naphthalene diimide groups for high methane storage journal January 2020

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
membrane
carbon capture
materials and chemistry by design
synthesis (novel materials)
synthesis (self-assembly)
synthesis (scalable processing)
high pressure
hydrocarbon
mesoporous
metal-organic framework
methane storage