Room temperature nanoarchitectonics of ultrafine SnO2 and Cu doped SnO2 crystallites for advanced H2S sensing

We report a generalized route for synthesizing pure SnO 2 and Cu (1 and 3 at%) doped SnO 2 at room temperature with crystallite size in a nanometer range of 1.0–3.0 nm using CuCl 2 , nitric acid and Sn metal.