Work

Chemiresistive Sensor Arrays from Conductive 2D Metal–Organic Frameworks

Year: 2015

Type: article

Abstract: Applications of porous metal-organic frameworks (MOFs) in electronic devices are rare, owing in large part to a lack of MOFs that display electrical conductivity. Here, we describe the use of conductive two-dimensional (2D) MOFs as a new class of materials for chemiresistive sensing of volatile organic compounds (VOCs). We demonstrate that a family of structurally analogous 2D MOFs can be used to construct a cross-reactive sensor array that allows for clear discrimination between different categories of VOCs. Experimental data show that multiple sensing mechanisms are operative with high degrees of orthogonality, establishing that the 2D MOFs used here are mechanistically unique and offer advantages relative to other known chemiresistor materials.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.5b09600

Authors: Michael G. Campbell, Sophie F. Liu, Timothy M. Swager, Mircea Dincă

Institution: Massachusetts Institute of Technology

Language: English

Topic: Gas Sensing Nanomaterials and Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500