Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals

Cheng，Junye1; Ran，Sijia2; Li，Tian3; Yan，Ming4; Wu，Jing5; Boles，Steven2; Liu，Bin6; Raza，Hassan3; Ullah，Sana6; Zhang，Wenjun6; Chen，Guohua3; Zheng，Guangping3

2023-09-07

10.1002/adma.202210829

Advanced Materials   Impact Factor & Quartile

0935-9648

1521-4095

Rapid advances in the engineering application prospects of metal−organic framework (MOF) materials necessitate an urgent in-depth understanding of their mechanical properties. This work demonstrates unprecedented recoverable elastic deformation of Ni-tetraphenylporphyrins (Ni-TCPP) MOF nanobelts with a tensile strain as high as 14%, and a projected yield strength-to-Young's modulus ratio exceeding the theoretical limit (≈10%) for crystalline materials. Based on first-principles simulations, the observed behavior of MOF crystal can be attributed to the mechanical deformation induced conformation transition and the formation of helical configuration of dislocations under high stresses, arising from their organic ligand building blocks in the crystal structures. The investigations of the mechanical properties along with electromechanical properties demonstrate that MOF materials have exciting application potential for biomechanics integrated systems, flexible electronics, and nanoelectromechanical devices.

deformation mechanisms in situ tensile tests metal−organic framework crystals super elasticity theoretical limits

SCI

English

NI Journal Papers

Others

National Natural Science Foundation of China[52102368];Hong Kong Polytechnic University[847 W];

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001037869800001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

2-s2.0-85170024768

Scopus

1.Department of Materials Science,Shenzhen MSU-BIT University,Shenzhen,Guangdong Province,517182,China
2.Department of Electrical Engineering,The Hong Kong Polytechnic University,Kowloon,999077,Hong Kong
3.Department of Mechanical Engineering,Hong Kong Polytechnic University,Kowloon,999077,Hong Kong
4.Department of Materials Science and Engineering,and Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials,Southern University of Science and Technology,Shenzhen,518055,China
5.Cryo-EM Center,Southern University of Science and Technology,Shenzhen,518055,China
6.Department of Materials Science and Engineering,City University of Hong Kong,999077,Hong Kong

Cheng，Junye,Ran，Sijia,Li，Tian,et al. Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals[J]. Advanced Materials,2023,35(36).

Cheng，Junye.,Ran，Sijia.,Li，Tian.,Yan，Ming.,Wu，Jing.,...&Zheng，Guangping.(2023).Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals.Advanced Materials,35(36).

Cheng，Junye,et al."Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals".Advanced Materials 35.36(2023).