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Title: Increasing the Stability of Metal-Organic Frameworks

Metal-organic frameworks (MOFs) are a new category of advanced porous materials undergoing study by many researchers for their vast variety of both novel structures and potentially useful properties arising from them. Their high porosities, tunable structures, and convenient process of introducing both customizable functional groups and unsaturated metal centers have afforded excellent gas sorption and separation ability, catalytic activity, luminescent properties, and more. However, the robustness and reactivity of a given framework are largely dependent on its metal-ligand interactions, where the metal-containing clusters are often vulnerable to ligand substitution by water or other nucleophiles, meaning that the frameworks may collapse upon exposure even to moist air. Other frameworks may collapse upon thermal or vacuum treatment or simply over time. This instability limits the practical uses of many MOFs. In order to further enhance the stability of the framework, many different approaches, such as the utilization of high-valence metal ions or nitrogen-donor ligands, were recently investigated. This review details the efforts of both our research group and others to synthesize MOFs possessing drastically increased chemical and thermal stability, in addition to exemplary performance for catalysis, gas sorption, and separation.
Authors:
 [1] ;  [1] ;  [2]
  1. Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
  2. Department of Chemistry, Texas A&M University, College Station, TX 77842, USA, Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77842, USA
Publication Date:
OSTI Identifier:
1209730
Grant/Contract Number:
SC0001015; FC36-07G017033
Type:
Published Article
Journal Name:
Advances in Chemistry
Additional Journal Information:
Journal Volume: 2014; Related Information: CHORUS Timestamp: 2016-08-18 10:12:00; Journal ID: ISSN 2356-6612
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
Country unknown/Code not available
Language:
English