Exceptional Fluorocarbon Uptake with Mesoporous Metal-Organic Frameworks for Adsorption-Based Cooling Systems

Jian Zheng, Dushyant Barpaga, Oliver Y. Gutiérrez, Nigel D. Browning, B. Layla Mehdi, Omar K. Farha, Johannes A. Lercher, B. Peter McGrail, Radha Kishan Motkuri*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Through solar, wind, or geothermal reallocation sources, heat transformation via adsorption-based systems provides the means to address the high energy global demand from refrigeration and cooling. However, improvements toward a suitable, high performing adsorbent-refrigerant working pair must be made to boost the applicability of such systems. For the first time, a series of mesoporous metal-organic frameworks (MOFs) have been tested for R134a fluorocarbon adsorption for this purpose. Each of the selected MOFs exhibit excellent, reversible R134a adsorption. Among them, NU-1000 provided an exceptional fluorocarbon uptake of ∼170 wt % near saturation, which is among the highest values reported so far for MOFs. Exhibiting appropriate equilibrium isotherm behavior and working capacities as large as 125 wt %, it is evident that mesoporous MOFs - especially those with hierarchical structure - are promising candidates for chiller applications. Such high performance materials provide significant potential for the design of future adsorption cooling systems.

Original languageEnglish (US)
Pages (from-to)5853-5858
Number of pages6
JournalACS Applied Energy Materials
Volume1
Issue number11
DOIs
StatePublished - Nov 26 2018

Keywords

  • R-134a
  • adsorption cooling
  • fluorocarbons
  • mesoporous
  • metal-organic frameworks

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Materials Chemistry
  • Electrical and Electronic Engineering

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