A mechanism is proposed for the anodic polymerization of ethylenediamine (EDA). Initially, there occurs the formation of the radical cation NH 2 CH 2 CH 2 NH 2 ϩ• , followed by the breaking of the C-N bond, the expulsion of NH 2 • , and concomitant formation of the primary carbocation NH 2 CH 2 CH 2 ϩ or the aziridinium cation. This cation reacts with an NH 2 group of an EDA molecule, yielding a new amine which can be further oxidized. The product on the anode is a polyethyleneimine-like polymer. A similar product was found for diethylenetriamine, whose oxidation was studied too. Other pure -amines can also polymerize if they are primary amines and have vicinal alkyl groups which are secondary, i.e., have the formula NH 2 CH 2 RCH 2 NH 2 .

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nanomaterials are synthesized at relatively low temperature (80 C) and with a short hydrothermal treatment time (3 h) using glucose (Glc) as a catalyst. Contrary to previous studies, it is possible to synthesize one of the Ag x Mo y O z binaries at 80 C by altering the pH of the reaction media in the presence of glucose. In addition, further experiments indicate that Ag/h-MoO 3 , Ag 2 Mo 2 O 7 and Ag/b-MoO 3 can be convertedto Ag/a-MoO 3 which can also be synthesized from a reaction involving ammonium heptamolybdate tetrahydrate and AgNO 3 at room temperature using cysteamine in both methods. Characterization with UV-Vis, XRD and Raman spectroscopy reveals high purity of as-synthesized product. These synthesized products are finally used to fabricate SERS substrates by coating a silicon wafer with a mixture of silver nanoparticles (Ag NPs) and Ag x Mo y O z (Si@Ag/Ag x Mo y O z ). The results show a good sensitivity and stability. In addition, it is also found that the SERS activity of Si

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