Surface properties of Ni(OH)2 and NiO. II. Mechanism for the thermal decomposition of Ni(OH)2 and other metal hydroxides

Cronan, C.L; Micale, F. J.; Topić, M.; Leidheiser, Henry; Zettlemoyer, A. C.; Popović, Stanko

doi:10.1016/0021-9797(76)90065-5

Cited by 28 publications

(16 citation statements)

References 22 publications

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“…More detailed features of the nanorods were studied with TEM: only a few nanorods were observed as a disengaged rod from the aggregates (Fig. [23,27,28] Therefore, a similar mechanism can be applied to the case of the present nanorods. The SAED pattern (Fig.…”

Section: Methodsmentioning

confidence: 92%

Hydrothermal Synthesis of Single-Crystal Ni(OH)2 Nanorods in a Carbon-Coated Anodic Alumina Film

Kyotani²,

2002

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Section: Methodsmentioning

confidence: 92%

Hydrothermal Synthesis of Single-Crystal Ni(OH)2 Nanorods in a Carbon-Coated Anodic Alumina Film

Kyotani²,

2002

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“…The weight loss is~13% from 200 • C to 600 • C based on the TG curve. During this process, NiCO 3 and Ni(OH) 2 will decompose to NiO [31,32].…”

Section: Data Analysis and Mathematical Modelingmentioning

confidence: 99%

High-Temperature Permittivity and Microwave Pretreatment Characteristics of Nickel-Containing Sludge from Battery Production

Guo

Ping

et al. 2019

Processes

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Permittivity is a vitally important parameter for the description of the absorption and heating characteristics of materials under microwave irradiation. In this paper, the permittivity of nickel-containing sludge (NCS), which is created during battery production as a cheap secondary resource, was measured at temperatures from 20 • C to 600 • C at 2.45 GHz using the cavity perturbation method. In addition, the loss tangent (tanδ) and penetration depth (Dp) of microwaves into the material were calculated. The results of the permittivity study show that the dielectric constant (ε ) and dielectric loss factor (ε") of the NCS increase with increasing temperature. The variations of the loss tangent (tanδ) and penetration depth (Dp) with the temperature can be divided into two parts at 200 • C. The effect of the initial moisture content on the dielectric properties of the material is notably greater than that of the temperature, which was confirmed by the heating curve. After microwave pretreatment, the nickel-containing phase is transformed into NiO, while the weight of NCS is reduced by more than 20%, the particle size is significantly reduced and the leaching time reduce 20 min than that of conventional heating.

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“…β-Ni(OH) 2 has a layered, Brucite-type structure, and nanostructures such as nanosheets, nanoribbons, and nanoflowers have been synthesized [9]. Thermal decomposition of Ni(OH) 2 is a useful way to make NiO [10,11] and Ni [12] nanosheets. Moreover, the size of nanoparticles can be stabilized by exothermic interaction with the underlying support [13].…”

Section: Introductionmentioning

confidence: 99%

Structural Evolution of Ni-Based Co-Catalysts on [Ca2Nb3O10]− Nanosheets during Heating and Their Photocatalytic Properties

et al. 2019

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Nickel compounds are among the most frequently used co-catalysts for photocatalytic water splitting. By loading Ni(II) precursors, submonolayer Ni(OH)2 was uniformly distributed onto photocatalytic [Ca2Nb3O10]− nanosheets. Further heating of the nanocomposite was studied both ex situ in various gas environments and in situ under vacuum in the scanning transmission electron microscope. During heating in non-oxidative environments including H2, argon and vacuum, Ni nanoparticles form at ≥200 °C, and they undergo Ostwald ripening at ≥500 °C. High resolution imaging and electron energy loss spectroscopy revealed a NiO shell around the Ni core. Ni loading of up to 3 wt% was demonstrated to enhance the rates of photocatalytic hydrogen evolution. After heat treatment, a further increase in the reaction rate can be achieved thanks to the Ni core/NiO shell nanoparticles and their large separation.

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Surface properties of Ni(OH)2 and NiO. II. Mechanism for the thermal decomposition of Ni(OH)2 and other metal hydroxides

Cited by 28 publications

References 22 publications

Hydrothermal Synthesis of Single-Crystal Ni(OH)2 Nanorods in a Carbon-Coated Anodic Alumina Film

Hydrothermal Synthesis of Single-Crystal Ni(OH)2 Nanorods in a Carbon-Coated Anodic Alumina Film

High-Temperature Permittivity and Microwave Pretreatment Characteristics of Nickel-Containing Sludge from Battery Production

Structural Evolution of Ni-Based Co-Catalysts on [Ca2Nb3O10]− Nanosheets during Heating and Their Photocatalytic Properties

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