TY - JOUR
T1 - Exceptional Fluorocarbon Uptake with Mesoporous Metal-Organic Frameworks for Adsorption-Based Cooling Systems
AU - Zheng, Jian
AU - Barpaga, Dushyant
AU - Gutiérrez, Oliver Y.
AU - Browning, Nigel D.
AU - Mehdi, B. Layla
AU - Farha, Omar K.
AU - Lercher, Johannes A.
AU - McGrail, B. Peter
AU - Motkuri, Radha Kishan
N1 - Funding Information:
We acknowledge the U.S. Department of Energy (DOE), Energy Efficiency and Renewable Energy’s Geothermal Technologies Office (GTO) for financial support. PNNL is operated by Battelle for the U.S. DOE under Contract DE-AC05-76RL01830. O.K.F. gratefully acknowledges support from the Defense Threat Reduction Agency (HDTRA1-18-1-0003). We thank Timothy Wang and Zhanyong Li for NU-901 materials.
Publisher Copyright:
© Copyright 2018 American Chemical Society.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - 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.
AB - 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.
KW - R-134a
KW - adsorption cooling
KW - fluorocarbons
KW - mesoporous
KW - metal-organic frameworks
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U2 - 10.1021/acsaem.8b01282
DO - 10.1021/acsaem.8b01282
M3 - Article
AN - SCOPUS:85064812440
SN - 2574-0962
VL - 1
SP - 5853
EP - 5858
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 11
ER -