TY - JOUR
T1 - Low experimental thermal conductivity of zirconium metal-organic framework UiO-66
AU - Lai, Hoa Thi
AU - Tran, Nhat Quang Minh
AU - Nguyen, Linh Ho Thuy
AU - Le, Thu Bao Nguyen
AU - Nguyen, Cuong Chi
AU - Pham, Anh Tuan Thanh
AU - Doan, Tan Le Hoang
AU - Park, Sungkyun
AU - Hong, Jongill
AU - Snyder, Gerald Jeffrey
AU - Phan, Thang Bach
N1 - Publisher Copyright:
© 2024 Author(s).
PY - 2024/4/8
Y1 - 2024/4/8
N2 - 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.
AB - 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.
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U2 - 10.1063/5.0201523
DO - 10.1063/5.0201523
M3 - Article
AN - SCOPUS:85190528147
SN - 0003-6951
VL - 124
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 15
M1 - 152205
ER -