Post transition metal substituted Keggin-type POMs as thin film chemiresistive sensors for H2O and CO2 detection

Abigail A Seddon; Nathan S Hill; Osama El-Zubir; Andrew Houlton; R John Errington; Pablo Docampo; Elizabeth A Gibson

doi:10.1039/d3cc05660k

Post transition metal substituted Keggin-type POMs as thin film chemiresistive sensors for H₂O and CO₂ detection

Chem Commun (Camb). 2024 Feb 13;60(14):1876-1879. doi: 10.1039/d3cc05660k.

Authors

Abigail A Seddon¹, Nathan S Hill², Osama El-Zubir³, Andrew Houlton³, R John Errington¹, Pablo Docampo⁴, Elizabeth A Gibson¹

Affiliations

¹ Energy Materials Laboratory, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK. Elizabeth.gibson@newcastle.ac.uk.
² School of Mathematics, Statistics, and Physics, Newcastle University, Newcastle upon Tyne, UK.
³ Chemical Nanoscience Labs, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK. osama.el-zubir@newcastle.ac.uk.
⁴ School of Chemistry, University of Glasgow, Glasgow, UK.

PMID: 38273815
DOI: 10.1039/d3cc05660k

Abstract

Chemiresitive sensing allows the affordable and facile detection of small molecules such as H₂O and CO₂. Herein, we report a novel class of Earth-abundant post transition metal substituted Keggin polyoxometalates (POMs) for chemiresistive sensing applications, with conductivities up to 0.01 S cm^-1 under 100% CO₂ and 65% Relative Humidity (RH).