α-Fe2O3 nanochains: ammonium acetate-based ionothermal synthesis and ultrasensitive sensors for low-ppm-level H2S gas†
Abstract
α-Fe2O3 nanochains have been successfully synthesized via an ammonium acetate-based ionothermal synthetic route. When detecting low-ppm-level H2S gas, the nanochain sensor displayes high sensitivity due to its unique structure and smaller size.