Selective NO reduction using blue ferrocenyl cation

In this work, a new analytical protocol for the selective recognition of NO is described. The mediated reduction of NO by ferrocene forms the basis of analysis. The formation of blue ferrocenyl cation formed as the intermediate during the mediated reduction of NO is confirmed by spectral method and by generating the blue ferrocenyl cation by the chemical oxidation of dichromate in sulphuric acid. The formation of paramagnetic ferrocenyl cation is an interesting feature of this work. Four different methodologies have been followed to incorporate the ferrocene molecules onto the gold electrode surface. The four modified configurations have been evaluated for the selective sensing of NO.