Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Junye Cheng
  • Sijia Ran
  • Tian Li
  • Ming Yan
  • Jing Wu
  • Steven Boles
  • Hassan Raza
  • Sana Ullah
  • Guohua Chen
  • Guangping Zheng

Detail(s)

Original languageEnglish
Article number2210829
Journal / PublicationAdvanced Materials
Volume35
Issue number36
Online published28 Jul 2023
Publication statusPublished - 7 Sept 2023

Abstract

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. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • deformation mechanisms, in situ tensile tests, metal-organic framework crystals, super elasticity, theoretical limits, COMPRESSION, PRESSURE, SILICON

Citation Format(s)

Achieving Superior Tensile Performance in Individual Metal−Organic Framework Crystals. / Cheng, Junye; Ran, Sijia; Li, Tian et al.
In: Advanced Materials, Vol. 35, No. 36, 2210829, 07.09.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review