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ACS Appl Mater Interfaces

Title:		Conductive Stimuli-Responsive Coordination Network Linked with Bismuth for Chemiresistive Gas Sensing
Author(s):		Aykanat A; Jones CG; Cline E; Stolz RM; Meng Z; Nelson HM; Mirica KA;
Address:		"Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States"
Journal Title:		ACS Appl Mater Interfaces
Year:		2021
Volume:		20211213
Issue:		50
Page Number:		60306 - 60318
DOI:		10.1021/acsami.1c14453
ISSN/ISBN:		1944-8252 (Electronic) 1944-8244 (Print) 1944-8244 (Linking)
Abstract:		"This paper describes the design, synthesis, characterization, and performance of a novel semiconductive crystalline coordination network, synthesized using 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) ligands interconnected with bismuth ions, toward chemiresistive gas sensing. Bi(HHTP) exhibits two distinct structures upon hydration and dehydration of the pores within the network, Bi(HHTP)-alpha and Bi(HHTP)-beta, respectively, both with unprecedented network topology (2,3-c and 3,4,4,5-c nodal net stoichiometry, respectively) and unique corrugated coordination geometries of HHTP molecules held together by bismuth ions, as revealed by a crystal structure resolved via microelectron diffraction (MicroED) (1.00 A resolution). Good electrical conductivity (5.3 x 10(-3) S.cm(-1)) promotes the utility of this material in the chemical sensing of gases (NH(3) and NO) and volatile organic compounds (VOCs: acetone, ethanol, methanol, and isopropanol). The chemiresistive sensing of NO and NH(3) using Bi(HHTP) exhibits limits of detection 0.15 and 0.29 parts per million (ppm), respectively, at low driving voltages (0.1-1.0 V) and operation at room temperature. This material is also capable of exhibiting unique and distinct responses to VOCs at ppm concentrations. Spectroscopic assessment via X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopic methods (i.e., attenuated total reflectance-infrared spectroscopy (ATR-IR) and diffuse reflectance infrared Fourier transformed spectroscopy (DRIFTS)), suggests that the sensing mechanisms of Bi(HHTP) to VOCs, NO, and NH(3) comprise a complex combination of steric, electronic, and protic properties of the targeted analytes"
Keywords:		bismuth chemiresistor coordination network crystalline gas sensor microelectron diffraction semiconductive;
Notes:		"PubMed-not-MEDLINEAykanat, Aylin Jones, Christopher G Cline, Evan Stolz, Robert M Meng, Zheng Nelson, Hosea M Mirica, Katherine A eng C0000008/CL/CLC NIH HHS/ R35 GM138318/GM/NIGMS NIH HHS/ 2021/12/14 ACS Appl Mater Interfaces. 2021 Dec 22; 13(50):60306-60318. doi: 10.1021/acsami.1c14453. Epub 2021 Dec 13"