Detection of SO₂ using a chemically stable Ni(<scp>ii</scp>)-MOF

Abstract

The MOF-type Ni₂(dobpdc) shows a high chemical stability towards SO₂, high capacity for SO₂ capture at low pressure (4.3 mmol g^-1 at 298 K and up to 0.05 bar), and exceptional cycling performance. Fluorescence experiments demonstrated the SO₂ detection properties of Ni₂(dobpdc) with a remarkable SO₂ detection selectivity. Finally, time-resolved photoluminescence experiments provided a plausible mechanism of SO₂ detection by this Ni(II)-based MOF material.