基于锌的三维半导体金属有机框架中的高热功率
High Thermopower in a Zn-Based 3D Semiconductive Metal-Organic Framework.
作者信息
Park Jihye, Hinckley Allison C, Huang Zhehao, Chen Gan, Yakovenko Andrey A, Zou Xiaodong, Bao Zhenan
机构信息
Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States.
Berzelii Centre EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden.
出版信息
J Am Chem Soc. 2020 Dec 9;142(49):20531-20535. doi: 10.1021/jacs.0c09573. Epub 2020 Nov 23.
Conductive metal-organic frameworks (c-MOFs) have drawn increasing attention for their outstanding performance in energy-related applications. However, the majority of reported c-MOFs are based on 2D structures. Synthetic strategies for 3D c-MOFs are under-explored, leaving unrealized functionality in both their structures and properties. Herein we report Zn-HAB, a 3D c-MOF comprised of hexaaminobenzene and Zn(II). Zn-HAB is shown to have microporosity with a band gap of approximately 1.68 eV, resulting in a moderate conductivity of 0.86 mS cm and a high Seebeck coefficient of 200 μV K at 300 K. The power factor of 3.44 nW m K constitutes the first report of the thermoelectric properties of an intrinsically conductive 3D MOF.
导电金属有机框架（c-MOFs）因其在能源相关应用中的出色性能而受到越来越多的关注。然而，大多数已报道的c-MOFs基于二维结构。三维c-MOFs的合成策略尚未得到充分探索，其结构和性能方面的功能尚未实现。在此，我们报道了一种由六氨基苯和Zn(II)组成的三维c-MOF——Zn-HAB。Zn-HAB具有微孔结构，带隙约为1.68 eV，在300 K时具有0.86 mS cm的适度电导率和200 μV K的高塞贝克系数。3.44 nW m K的功率因子是关于本征导电三维MOF热电性能的首次报道。
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