NiO-Co 3 O 4 nanoplate composite as efficient anode in Li-ion battery

Hermetically Coated and Well‐Separated Co3O4 Nanophase within Porous Graphitic Carbon Nanosheets: Synthesis, Confinement Effect, and Improved Lithium‐Storage Capacity and Durability

“…Further development of novel and advanced Li-ion batteries (LIBs) for demanding uses, such as electric vehicles and loadleveling applications,h as triggered intensive exploration of active, stable, and inexpensive electrocatalysts with sustained high lithium-storage performance, especially at high charge/ discharge rates. [1][2][3][4][5] Somew orks focus on nanosizedt ransition metal oxides (MOs) such as Co 3 O 4 ,C oO, Fe 3 O 4 ,F e 2 O 3 ,M nO 2 , NiO, and CuO, [6][7][8][9][10][11][12][13][14][15] because MO have theoretically aboutt wice the capacity of commercial graphitic carbon per unit mass ( % 500-1000 mAh g À1 )a nd thus are regarded as promising next-generation anode materials for LIBs with high energy density.T his can be attributed to their specific Li reaction mechanism (MO x + x Li + + x e À !M + x Li 2 O), which involvest he formationand decomposition of Li 2 O, accompanied by the re-ductiona nd oxidation of metal nanoparticles, and thus differs from the classical Li insertion/deinsertion andL ia lloying processes. [3,[16][17][18][19] The specific capacity of an electrode material must be associatedw ith ag iven voltage range, both theoretically and practically.…”

Influence of the Synthesis Route on the Properties of Hybrid NiO–MnCo2O4–Ni6MnO8 Anode Materials and their Electrochemical Performances

“…[1][2][3][4][5][6] Multicomponent-active hybrid metal oxidesh ave been developed as possible alternatives to graphitea node materials because of their high capacity and environmental friendliness.I nt his respect, the assembly of two distinct metal oxides into bicomponent anode materials (e.g.,N iO-Co 3 O 4 ,Z nO-ZnFe 2 O 4 ,N iO-MnCo 2 O 4 ,C oO-CoFe 2 O 4 , and Fe 2 O 3 -MnO 2 )f or LIBs have been reported. [7][8][9][10][11] Hybridm aterials consisting of two or more components with enhanced properties or novel useful properties are expected to meet the on-boarde nergy demands.…”

“…Spray pyrolysis (SP) and solvothermals ynthesis are two popular methods for the synthesis of hybrid nanostructured materials. [11][12][13][14][15][16] SP has been demonstrated as as calablea nd facile methodf or the preparation of functional materials with tailorable composition and rare particlea gglomeration, in whichthe as-prepared precursors olution is first aerosolized into droplets and then carriedi nto af urnace by the carrier gas. The droplet stream under high temperature goes through solvent evaporation, precipitation,drying, and decompositiontoproduce func-tional materials.…”

Hierarchical Porous NiO/β‐NiMoO4 Heterostructure as Superior Anode Material for Lithium Storage

“…found that hierarchical MnMoO 4 /CoMoO 4 heterostructured nanowires showed enhanced specific capacitance and reversibility compared with the MnMoO 4 and CoMoO 4 electrodes . Similarly, other hybrid heterostructures such as ZnCo 2 O 4 /NiO core/shell nanowires, NiO‐Co 3 O 4 nanoplates, CoO/CoFe 2 O 4 nanocomposites, and CoMoO 4 /Co 3 O 4 composites have been employed as LIB electrodes and demonstrated improved reversible capacity and cycling performance.…”

“…[17,18] It is believed that such constructed heterostructures usuallye nable abundant electrochemical active sites, short ion diffusion paths, and good structural stabilityo riginating from the synergistic effect of different components, and therefore exhibit better electrochemical performances. [19] [21] Similarly,o ther hybrid heterostructures such as ZnCo 2 O 4 /NiO core/shell nanowires, [22] NiO-Co 3 O 4 nanoplates, [23] CoO/CoFe 2 O 4 nanocomposites, [24] and CoMoO 4 /Co 3 O 4 composites [25] have been employeda sL IB electrodes and demonstrated improved reversible capacity and cycling performance.…”