Cu/SnO2 xerogels: a novel epoxide derived nanomaterial as formaldehyde gas sensor

Traditionally, sol–gel processing of metal oxides using organometallic precursors is expensive, nonaqueous, and complicated when it comes to two-or-more dissimilar metal oxides. Herein, we report a versatile epoxide-assisted non-organometallic, aqueous, and inexpensive synthesis route of developing Cu/SnO2 xerogels and their use as efficient formaldehyde (FA) gas sensors. The route utilizes easy to handle salts as precursors (tin and copper...