Preparation and Electrochemical Characterization of LiCoO[sub 2] Particles Prepared by Supercritical Water Synthesis

Kanamura, Kiyoshi; Goto, Atsushi; Ho, Rho Young; Umegaki, Takao; Toyoshima, Katsunori; Okada, Ken; Hakuta, Yukiya; Adschiri, Tadafumi; Arai, Kunio

doi:10.1149/1.1391117

Cited by 59 publications

(14 citation statements)

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“…The supercritical hydrothermal synthesis method can also synthesize many materials that conventional hydrothermal synthesis method or solid-phase synthesis cannot synthesize. Thus, these specific properties of supercritical water have contributed to its widespread applications in materials synthesis [19][20][21][22], catalysis [23][24][25], and semiconductor [26,27].…”

Section: Introductionmentioning

confidence: 99%

Selective Synthesis of Manganese/Silicon Complexes in Supercritical Water

Wang

Peng

Wang

et al. 2014

Journal of Nanomaterials

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A series of manganese salts (Mn(NO 3 ) 2 , MnCl 2 , MnSO 4 , and Mn(Ac) 2 ) and silicon materials (silica sand, silica sol, and tetraethyl orthosilicate) were used to synthesize Mn/Si complexes in supercritical water using a tube reactor. X-ray diffraction (XRD), Xray photoelectron spectrometer (XPS), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) were employed to characterize the structure and morphology of the solid products. It was found that MnO 2 , Mn 2 O 3 , and Mn 2 SiO 4 could be obtained in supercritical water at 673 K in 5 minutes. The roles of both anions of manganese salts and silicon species in the formation of manganese silicon complexes were discussed. The inorganic manganese salt with the oxyacid radical could be easily decomposed to produce MnO 2 /SiO 2 and Mn 2 O 3 /SiO 2 . It is interesting to found that Mn(Ac) 2 can react with various types of silicon to produce Mn 2 SiO 4 . The hydroxyl groups of the SiO 2 surface from different silicon sources enhance the reactivity of SiO 2 .

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Section: Introductionmentioning

confidence: 99%

Selective Synthesis of Manganese/Silicon Complexes in Supercritical Water

Wang

Peng

Wang

et al. 2014

Journal of Nanomaterials

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“…The peak intensity ratio (I 0 0 3 /I 1 0 4 ) of the XRD patterns increased with increasing sintering temperature, which is attributed to the improved cation mixing [14]. The peak at 2u = 63.308 are clearly separated in the specimen sintered at 600 8C, which indicated that reasonably good layered structure was obtained in this temperature.…”

Section: Licoo 2 Filmmentioning

confidence: 83%

Fabrication of solid thin film electrolyte and LiCoO2 by aerosol flame pyrolysis deposition

Cho

Lee

et al. 2007

Journal of Analytical and Applied Pyrolysis

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“…The initial investigations, performed by Adschiri et al using a T-piece mixer-type reactor, explored the synthesis of a whole host of metal oxides, including haematite (Fe 2 O 3 ), magnetite (Fe 3 O 4 ), cobalt oxide (Co 3 O 4 ) and anatase-phase titania (TiO 2 ) [33]. Further work by Adschiri et al added ceria (CeO 2 ) [38], lithium cobalt oxide (LiCoO 2 ) [58] and the oxyhydroxide boehmite (AlOOH) [59]. This approach informed much of the subsequent research in the area, and the number of oxides available by this technique expanded to include more complex oxides such as yttrium aluminium garnet (Y 3 Al 5 O 12 ) [40,41], its doped analogues and potassium niobate (KNbO 3 ) [42].…”

Section: (A) Metal Oxidesmentioning

confidence: 99%

Continuous-flow hydrothermal synthesis for the production of inorganic nanomaterials

Dunne

Munn

Starkey

et al. 2015

Phil. Trans. R. Soc. A.

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As nanotechnology becomes increasingly important and ubiquitous, new and scalable synthetic approaches are needed to meet the growing demand for industrially viable routes to nanomaterial production. Continuous-flow hydrothermal synthesis or supercritical water hydrothermal synthesis (scWHS) is emerging as a versatile solution to this problem. The process was initially developed to take advantage of the tunable chemical and physical properties of superheated water to produce metal oxide nanoparticles by rapid nucleation and precipitation. The development of new mixing regimes and reactor designs has been facilitated by the modelling of reactor systems. These new reactor designs further exploit the properties of supercritical water to promote faster and more uniform mixing of reagent streams. The synthetic approach has been expanded beyond the metal oxide systems for which it was conceived, and now encompasses metal sulfides, metal phosphates, metal nanoparticles and metal-organic frameworks. In many of these cases, some degree of size and shape control can be achieved through careful consideration of both chemistry and reactor design. This review briefly considers the development of scWHS reactor technology, before highlighting some of our recent work in expanding the scope of this synthetic method to include a wide range of materials.

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Preparation and Electrochemical Characterization of LiCoO[sub 2] Particles Prepared by Supercritical Water Synthesis

Cited by 59 publications

References 0 publications

Selective Synthesis of Manganese/Silicon Complexes in Supercritical Water

Selective Synthesis of Manganese/Silicon Complexes in Supercritical Water

Fabrication of solid thin film electrolyte and LiCoO2 by aerosol flame pyrolysis deposition

Continuous-flow hydrothermal synthesis for the production of inorganic nanomaterials

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