Low temperature synthesis of a stable MoO2 as suitable anode materials for lithium batteries

Liang, Yanxiang; Shui-jin, Yang; Yi, Zonghui; Lei, Xuefeng; Sun, Jutang; Zhou, Yunhong

doi:10.1016/j.mseb.2005.03.027

Cited by 59 publications

(35 citation statements)

References 20 publications

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“…5,[9][10][11][12][13] It can be found in the mineral tugarinovite (named after the geochemist Alexsey Ivanovich Tugarinov) 14 and shows a metal-like electric conductivity being unusual for transition-metal oxides. 15,16 It does not have a variety of technological applications such as MoO3 but there are some interesting approaches for usage as anode material in lithium-ion batteries, 15,[17][18][19][20] films for energy storage, 21 soft-magnetic and optical materials, [22][23][24] and as nanorods. 22,25 The synthesis of other oxides with metal ions in just one oxidation state probably cannot be achieved by conventional chemical methods, like oxidation or reduction.…”

Section: Introductionmentioning

confidence: 99%

HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

et al. 2017

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High-pressure molybdenum dioxide (HP-MoO2) was synthesized using a multi-anvil press at 18 GPa and 1073 K, as motivated by previous first-principles calculations. The crystal structure was determined by single-crystal X-ray diffraction. The new polymorph crystallizes isotypically to HP-WO2 in the orthorhombic crystal system in space group Pnma and was found to be diamagnetic. Theoretical investigations using structure optimization at density-functional theory (DFT) level indicate a transition pressure of 5 GPa at 0 K and identify the new compound as slightly metastable at ambient pressure with respect to the thermodynamically stable monoclinic MoO2 (α-MoO2; ΔEm = 2.2 kJ·mol -1 ).

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Section: Introductionmentioning

confidence: 99%

HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

et al. 2017

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“…[1,2]. Molybdenum dioxide powders have been widely used in the fields of catalysis essentially in cracking and reforming of alkanes [3,4], sensors [5], recording materials [6], and electrode materials [7]. Generally, molybdenum dioxide is prepared by reducing molybdenum trioxide with hydrogen at high temperature and the product is coarse-grained or using alkali-metal borohydrides such as NaBH 4 [8].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Application of Fe-doped MoO2 Tremella-Like Nanosheets

et al. 2016

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MoO 2 nanoparticles with tremella-like morphology have been synthesized and characterized. Characterization by powder X-ray diffraction (XRD) and transmission electron micrographs (TEM) microscopy made possible to estimate that the nanosheets have ca. 12 nm and aggregate to form tremella-like structures. The resulting MoO 2 nanoparticles were used as catalyst for epoxidation of several olefins. The use of tert-butylhydroperoxide (tbhp), H 2 O 2 and cumenehydroperoxide (chp) as oxygen sources was screened under different reaction conditions, namely, solvent and temperature. The results from the catalytic experiments show that this catalyst was very efficient leading to very high conversion and product selectivity levels. In addition, the use of oxidant:olefin ratios close to 1 show that this catalyst is very efficient conducting olefin epoxidation. Further details are discussed in the work. The catalyst showed overall excellent performance with tbhp. When using H 2 O 2 , the catalyst showed good activity, which is very relevant as well. All these achievements contribute with a step forward in the development of more environmentally friendly processes.

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“…However, the lattice parameters for MoO 3 + Li are slightly lower than those reported in the PDF chart for MoO 3 , indicating a possible reduction of the inter-planar distance due to the insertion of Li atoms [5,6]. The MoO 3 + Li spectrum also shows new reflections coinciding with plane families associated to the compound Li 2 MoO 4 .…”

Section: Resultsmentioning

confidence: 70%

Incorporation of Li in MoO₃ thin films grown by evaporation with a CO₂ laser

Díaz

Pardo

Torres³

et al. 2007

Phys. Status Solidi (c)

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, 78.66.Nk, 81.15.Fg This work describes the lithium incorporation process in thin films of MoO 3 prepared by evaporation with a laser of CO 2, working in continuous wave mode. Targets prepared from mixtures of MoO 3 (99.97%) and Li 2 CO 3 (99.98%) in powder were used in the growth of the films. The targets had Li concentrations of 1%, 2% and 5% (lithium ions/total cations). The samples were characterized through X-rays diffraction, (XRD) and transmittance in the visible spectrum. The XRD spectra show an evolution in the growth of the films, beginning by an amorphous phase for samples with temperatures lower than 200 o C. From this temperature on a mixture of the α and β phases of LiMoO 3 and Li 2 MoO 4 appears, which grow along planes (100), (111) for LiMoO 3 and (012) for Li 2 MoO 4 . The transmittance spectra showed a shift of the material's energy gap towards long wavelengths as the lithium concentration increases in the sample.

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Low temperature synthesis of a stable MoO2 as suitable anode materials for lithium batteries

Cited by 59 publications

References 20 publications

HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

Catalytic Application of Fe-doped MoO2 Tremella-Like Nanosheets

Incorporation of Li in MoO₃ thin films grown by evaporation with a CO₂ laser

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Low temperature synthesis of a stable MoO2 as suitable anode materials for lithium batteries

Cited by 59 publications

References 20 publications

HP-MoO2: A High-Pressure Polymorph of Molybdenum Dioxide

HP-MoO2: A High-Pressure Polymorph of Molybdenum Dioxide

Catalytic Application of Fe-doped MoO2 Tremella-Like Nanosheets

Incorporation of Li in MoO3 thin films grown by evaporation with a CO2 laser

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HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide

Incorporation of Li in MoO₃ thin films grown by evaporation with a CO₂ laser