Mechanochemical synthesis of NaMF3 (M=Fe, Mn, Ni) and their electrochemical properties as positive electrode materials for sodium batteries

Mechanochemistry: opportunities for new and cleaner synthesis

“…This has been successful for Na (M = Fe, Mn and Ni) [107] and K (M =Mg, Zn, Mn, Ni, Cu, Co and Fe). [108] Similarly, a series of chlorides KMCl 3 (M = Ti, Cr, Mn, Fe, Co, Ni, Cu and Zn) has been prepared [109] and direct combination of CaF 2 and LaF 3 produced Ca 1-x La x F 2+x .…”

Hollow Sodium Nickel Fluoride Nanocubes Deposited MWCNT as An Efficient Electrocatalyst for Urea Oxidation

“…Interestingly, in Fig. 4c and 4d, the Ni XPS spectrum changes its structure to a broad spectrum, indicating a change in chemical environment of Ni [34]. Compared with the peaks for Ni(III) species in Fig.…”

“…Recently, metal fluorides like NaMF3 (M = Fe, Mn, Ni) have found applications as cathode materials in Li and Na batteries [34,35]. Nevertheless, sodium nickel fluoride (NaNiF3/Na3NiF6) has not yet been investigated as an electrode material for urea oxidation.…”

β-MnO2 nanorods with exposed tunnel structures as high-performance cathode materials for sodium-ion batteries

“…2 However, the large ionic size of sodium (1.02 Å versus lithium (0.76 Å )) limits the choice of electrode materials for Na-ion batteries. Many cathode materials have been investigated for Na-ion batteries, including phosphate polyanion materials (NaFePO 4 ), 3,4 Na 4 Mn 9 O 18 , [5][6][7] fluoride-based cathode materials-NaMF 3 (M ¼ Fe, Mn, V and Ni), 8,9 fluorophosphates, 10,11 fluorosulfates, 12 À14 and layered transition metal oxides, such as P2-Na x CoO 2 , 15 21,22 and Na x VO 2 . 23 However, none of the above cathode materials showed satisfactory electrochemical performance in terms of specific capacity, cyclability and high-rate capability.…”