DataVXACS Materials LettersPaper
journal article·2020-03-02

A Robust Aluminum Metal-Organic Framework with Temperature-Induced Breathing Effect

Jie Liang, Xiaohang Li, Rubing Xi, Guangcun Shan, Pei-Zhou Li, Jia Liu, Yanli Zhao, Ruqiang Zou

ACS Materials Letters· Volume 2· Issue 3
Publisher page
Source abstract

Abstract

A robust, yet flexible, Al-based metal-organic framework (MOF), Al2(OH)2(bpydc)·0.5H2O (1np), is synthesized via a hydrothermal strategy utilizing 2,2′-bipyridine-5,5′-dicarboxylate (bpydc2–) as the organic ligand. The structure of 1np is built from infinite trans chains of corner-sharing AlO4(OH)2 octahedra interconnected by bpydc2– ligands, forming a three-dimensional framework. 1np is robust, because of its superior thermal, hydrothermal, and chemical stability. The flexibility of 1np is reflected in the activation by the removal of unreacted H2bpydc molecules and/or occluded solvent molecules, followed by degassing at 250 °C, leading to the large pore form (1lp) of the title compound. A reversible structural change from 1lp to 1np is achieved via the hydration in water at 200 °C. The unusual combination of rigidity and flexibility enables precise control and fixation of the swelling magnitude in this MOF material.
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Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Space and Environment, Beihang University, Beijing, 100191, China

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore

Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China

School of Instrumentation Science and Optoelectronics Engineering, Institute of Precision Instrument and Quantum Sensing, Beihang University, Beijing, 100191, China

Funding

Beihang University · Agency for Science, Technology and Research · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China · National Program for Support of Top-notch Young Professionals

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