Low experimental thermal conductivity of zirconium metal-organic framework UiO-66

Hoa Thi Lai*, Nhat Quang Minh Tran, Linh Ho Thuy Nguyen, Thu Bao Nguyen Le, Cuong Chi Nguyen, Anh Tuan Thanh Pham, Tan Le Hoang Doan, Sungkyun Park, Jongill Hong, Gerald Jeffrey Snyder, Thang Bach Phan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Using laser flash analysis, the low thermal conductivity of the pressed Zirconium metal-organic framework (UiO-66) powder pellet was obtained. As a result, the density ρ, thermal diffusivity α, specific heat capacity cP, and low thermal conductivity κexp of the pressed UiO-66 powder pellet at 300 K are observed to be 1.258 g/cm3, 0.001 59 cm2/s, 0.7765 J/g K, and 0.156 W/m K, respectively. Due to the presence of the 12-coordinated nodes with six transfer pathways, the thermal transport of the UiO-66 particles is preferred through linkers to metal sites. The low thermal conductivity follows the trend of vacuum < argon (Ar) < air < helium (He) since the entrapped gas molecules provide additional heat transfer channels inside the particles and between the particles. The low thermal conductivity along with a weak temperature-dependent thermal conductivity are elucidated in terms of boundary scattering.

Original languageEnglish (US)
Article number152205
JournalApplied Physics Letters
Volume124
Issue number15
DOIs
StatePublished - Apr 8 2024

Funding

This work was financially supported by Vietnam National University, Ho Chi Minh City (C2022-50-01).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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