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A sol-gel method with ethylene diamine tetraacetic acid and citric acid as co-chelates is employed for the synthesis of P2-type Na2/3Mn1/2Fe1/4Co1/4O2 as cathode material for sodium-ion batteries. Among the various calcination temperatures, the Na2/3Mn1/2Fe1/4Co1/4O2 with a pure P2-type phase calcined at 900°C demonstrates the best cycle capacity, with a first discharge capacity of 157mAhg−1 and a...
Spinel Li 4 Ti 5 O 12 was synthesized by a simple glycine-nitrate auto-combustion by applying aqueous medium and constricting the reactions in the pores of cellulose fibers. The products from the auto-combustion and further calcination at various temperatures were characterized by XRD, SEM, BET surface area and TEM examinations. Pure phase and well-crystallized nano-Li ...
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