Valence-Dependent Electrical Conductivity in a 3D Tetrahydroxyquinone-Based Metal–Organic Framework

Chen, Gan; Gee, Leland B.; Xu, Wenqian; Zhu, Yanbing; Lezama-Pacheco, Juan S.; Huang, Zhehao; Li, Zongqi; Babicz, Jeffrey T.; Choudhury, Snehashis; Chang, Ting-Hsiang; Reed, Evan; Solomon, Edward I.; Bao, Zhenan

doi:10.1021/jacs.0c09379

DOE OSTI · 1767991

Valence-Dependent Electrical Conductivity in a 3D Tetrahydroxyquinone-Based Metal–Organic Framework

Chen, Gan·Gee, Leland B.·Xu, Wenqian·Zhu, Yanbing·Lezama-Pacheco, Juan S.·Huang, Zhehao·Li, Zongqi·Babicz, Jeffrey T.·Choudhury, Snehashis·Chang, Ting-Hsiang·Reed, Evan·Solomon, Edward I.·Bao, Zhenan

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Abstract

Electrically conductive metal–organic frameworks (cMOFs) have become a topic of intense interest in recent years because of their great potential in electrochemical energy storage, electrocatalysis, and sensing applications. Most of the cMOFs reported hitherto are 2D structures, and 3D cMOFs remain rare. Herein we report FeTHQ, a 3D cMOF synthesized from tetrahydroxy-1,4-quinone (THQ) and iron(II) sulfate salt. FeTHQ exhibited a conductivity of 3.3 ± 0.55 mS cm –1 at 300 K, which is high for 3D cMOFs. The conductivity of FeTHQ is valence-dependent. Additionally, a higher conductivity was measured with the as-prepared FeTHQ than with the air-oxidized and sodium naphthalenide-reduced samples.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY band structure chemical structure electrical conductivity metal organic frameworks redox reactions

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Chen, Gan, Gee, Leland B., Xu, Wenqian, Zhu, Yanbing, Lezama-Pacheco, Juan S., Huang, Zhehao, Li, Zongqi, Babicz, Jeffrey T., Choudhury, Snehashis, Chang, Ting-Hsiang, Reed, Evan, Solomon, Edward I., Bao, Zhenan. 2020-12-14. Valence-Dependent Electrical Conductivity in a 3D Tetrahydroxyquinone-Based Metal–Organic Framework. https://doi.org/10.1021/jacs.0c09379

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