Effects of Metal Ion Sources on Synthesis and Electrochemical Performance of Spinel LiMn2O4 Using Tartaric Acid Gel Process

Corrosion control of aluminum surfaces by polypyrrole films: influence of electrolyte

“…The spectrum of PPy film deposited from tartaric acid (Figure 3a) presents a very strong band at 1700 cm -1 and a medium band at 1134 cm -1 , attributed to the carboxylic and hydroxyl groups, respectively 20,21 . These bands are associated to the tartaric acid, which incorporates the polymeric film via doping during the synthesis of the PPy.…”

Low-temperature synthesis of highly crystallized LiMn2O4 from alpha manganese dioxide nanorods

“…Therefore, a simple and convenient route to synthesize LiMn 2 O 4 without loss of electrochemical performance is highly desired. From various synthetic methods reported in the previous literatures, the results clearly indicated that the preparation conditions including reaction temperature and time, and the physicochemical properties of the resulting product including structure, purity, morphology, and electrochemical performance are greatly influenced by the precursor or starting materials [3,16,17]. Thus, a proper choose of starting materials is very important for the preparation of high performance cathode materials for lithium ion batteries.…”

Electrodeposition of polypyrrole films on aluminum from tartrate aqueous solution

“…The results were compared with those existent in literature, which allowed to do the attributions shown in Table 2. [41][42][43][44][45][46] The absorption bands at 1171 and 1163 cm -1 in the FTIR spectra of PPy films electrodeposited by (B) cyclic voltammetry and (D) galvanostatically at 10 mA cm -2 have been assigned to the bipolaronic species that are formed in the overoxidation process of the PPy. 46 These spectra also present bands at 1630 that can be attributed at carbonyl groups formed by overoxidation, an irreversible degradation process of the polymeric chain.…”