Cu_1.5Mn_1.5O₄spinel: a novel anode material for lithium-ion batteries

Abstract

Copper manganese oxide Cu 1.5 Mn 1.5 O 4 , a novel anode material for lithium-ion batteries, was synthesized via a spray drying method. SEM images demonstrated a strong dependence of the morphologies of secondary and primary particles on the synthesis parameters. The surface electronic states and chemical compositions of manganese and copper in the sample were confirmed by XPS. The electrochemical results demonstrated that the sample synthesized at an annealing temperature of 700 C showed great cycling performance, and retained a specific capacity of 464 mA h g À1 at a current of 100 mA g À1 after 60 cycles.

On the Mn promoted synthesis of higher alcohols over Cu derived ternary catalysts

“…This peak signifies the presence of Cu + in Cu 1.5 Mn 1.5 O 4 , as previously reported. 49 The presence of Cu + in K-CuMnAl is also suggested by the observation that the area ratio of the satellite 2p 3/2 is 0.37, notably lower than the 0.51 value observed for K-CuZnAl. As shown in Fig.…”

Study of physical properties of a ferrimagnetic spinel Cu1.5Mn1.5O4: spin dynamics, magnetocaloric effect and critical behavior

“…[33][34][35] 3d 3 ) occupy the octahedral site. [36][37][38] For the Cu 1.5 Mn 1.5 O 4 system, both the valance states of Cu ions (Cu 1+ /Cu 2+ ) and Mn ions (Mn 4+ ) and their site occupancies at the tetrahedral (A site) and octahedral (B site) sites have large exibilities and hence the affecting magnetic properties, it can be justied by superexchange coupling between the sublattices, and the fact that the local ferrimagnetic order of Mn 4+ ions on B sites can be disturbed by Cu 2+ on the same sites.…”

Structural, optical and dielectric properties of Cu1.5Mn1.5O4 spinel nanoparticles

“…The spinel-type oxides, copper manganese and their composites, are receiving great attention for their numerous technological applications. The latter consist of rechargeable lithium batteries, 11 catalysts, 12 electrochemical biosensors, 13 selective sun absorbers (in solar thermal energy conversion systems), 14,15 collectors, and anti-corrosion coatings, given their excellent structural, chemical and physical properties. The physicochemical properties of copper manganese spinel-type mixed oxides are mainly determined in terms of the charge, type and distribution in the tetrahedral/octahedral sites of the cations.…”