Negative Thermal Expansion Design Strategies in a Diverse Series of Metal-Organic Frameworks.
Journal Article
·
· Advanced Functional Materials
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Univ. of Amsterdam, Amsterdam (The Netherlands)
Negative thermal expansion materials are of interest for an array of composite material applications whereby they can compensate for the behavior of a positive thermal expansion matrix. In this work, various design strategies for systematically tuning the coefficient of thermal expansion in a diverse series of metal–organic frameworks (MOFs) are demonstrated. By independently varying the metal, ligand, topology, and guest environment of representative MOFs, a range of negative and positive thermal expansion behaviors are experimentally achieved. Insights into the origin of these behaviors are obtained through an analysis of synchrotron–radiation total scattering and diffraction experiments, as well as complementary molecular simulations. As a result, the implications of these findings on the prospects for MOFs as an emergent negative thermal expansion material class are also discussed.
- Research Organization:
- Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357; AC04-94AL85000; NA0003525
- OSTI ID:
- 1570249
- Alternate ID(s):
- OSTI ID: 1562723
OSTI ID: 1578199
- Report Number(s):
- SAND--2019-10809J; 679347
- Journal Information:
- Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 48 Vol. 29; ISSN 1616-301X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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