Synthesis, characterization and lithium-storage performance of MoO2/carbon hybrid nanowires

Ultrathin MoO2 nanosheets for superior lithium storage

“…In the following cycles, the reversible capacity stabilizes at 1030 mAh g À 1 , while the CE drastically rises up to above 95%. Both the reversible capacity level and CE are significantly higher than reported values in literature, as most MoO 2 materials exhibited reversible capacities of 600-800 mAh g À 1 with initial CE below 70% [6,7,[9][10][11][12][13]18,20]. Although the pure MoO 2 prepared by reducing MoO 3 nanosheets with Ar/H 2 delivers a comparable discharge capacity, neither reversible capacity nor CE is comparable to the carbon coated nanosheets ( Figure S5).…”

“…As bulk MoO 2 generally shows poor Li storage capability due to kinetic barrier [4], diverse nanomaterials such as nanoparticles [5,6], nanowires [7,8], nanorods [9], nanobelts [10], and complex assemblies [11][12][13][14] have been engineered. These nanoscale materials exhibit upgraded Li-storage performance compared with bulk counterpart, due to higher surface areas, more active sites, and shorter ion diffusion paths [15][16][17].…”

Ultrathin MoS2 nanosheets growing within an in-situ-formed template as efficient electrocatalysts for hydrogen evolution

“…As shown in Fig. 4c, the peaks at 228.6 and 231.8 eV are respectively associated with 3d 3/2 and 3d 5/2 of Mo 4þ [27], and those at 232.4 and 235.4 eV should be ascribed to Mo 6þ resulting from the surface oxidation of MoS 2 in air [28]. The corresponding peaks for the S 2p 3/2 and 2p 1/2 of divalent sulfide ions (S 2À ) are observed at 161.…”

MoO2/Mo2C/C spheres as anode materials for lithium ion batteries

“…MoO 2 -C spheres exhibited good cycling performance and delivered a discharge capacity of 812 mAh g -1 when cycled at 0.2 A g -1 [9]. MoO 2 −carbon hybrid nanowires delivered a capacity of 327 mAh g −1 at a current density of 1 A g −1 after 20 cycles [22].…”