Relationship between ammonia sensing properties of polyaniline nanostructures and their deposition and synthesis methods

► Dependence of nanostructure morphology on the deposition process. ► Interest of nanostructures for gas detection compared to conventional polyaniline. ► Importance of a high surface area on the improved gas sensor performances. ► Better performances of nanostructures synthesized by rapid mixing polymerization. ► Better stability of CSA-doped polyaniline.