Carbonate Minerals and the CO2-Carbonic Acid System

Lerman, Abraham; Mackenzie, Fred T.

doi:10.1007/978-3-319-39193-9_84-1

Cited by 2 publications

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“…The carbon is mainly due to the presence of bicarbonate anions because the FTIR spectrum shows typical bands at 1385 and 1283 cm –1 assignable to CO stretching and C–O–H bending vibrations, respectively . Because the pH of the nanosheet dispersion was found to be in the range of 8.1–8.2, the bicarbonate ion is a major species by considering the change in the molar concentrations of CO 2 , HCO 3 – , and CO 3 2– as a function of pH in water . The XRD pattern of the restacked nanosheets shows the peaks characteristic of the interstratified structure composed of α- and β-phase hydroxide layers (Figure S11b).…”

Section: Resultsmentioning

confidence: 99%

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets

et al. 2021

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Various methods for the preparation of inorganic nanosheets have been established and they have contributed to the substantial development of the research on diverse two-dimensional materials. Covalent surface modification of layered metal hydroxides with alkoxy groups is known to effectively weaken the interactions between layers, although the modified ligands are irreversibly immobilized. This study proposes the use of methanol as a removable surface modifier forming monodentate alkoxy bonds to prepare nickel hydroxide nanosheets through hydrolysis. Methoxylated layered nickel hydroxide, consisting of randomly stacked nano-sized nickel hydroxide sheets (10–20 nm in size) having Ni–OCH3 groups on its surface, was synthesized in a powder form through the precipitation reaction of a nickel salt in methanol at room temperature. After dispersing the aggregated methoxylated nickel hydroxide in water, single-layer nickel hydroxide nanosheets with a thickness of 1.2 nm and a lateral size of 460 nm at maximum, which is larger than the size of original methoxylated nickel hydroxide were found in the suspension. The time-course experiments during hydrolysis suggested that two-dimensional crystal growth of exfoliated nickel hydroxide sheets proceeded, resulting in the formation of the nanosheets. Moreover, single-layer and nano-sized cobalt hydroxide was prepared through a similar manner. This work demonstrates that two-dimensional alkoxides consisting of polymeric M–O–M bonds are useful precursors for the design of metal-hydroxide-based nanomaterials.

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Section: Resultsmentioning

confidence: 99%

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets

et al. 2021

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Carbon and oxygen isotopes of calcified root cells, carbonate nodules and total inorganic carbon in the Chinese loess–paleosol sequence: The application of paleoenvironmental studies

Luo

Hong

et al. 2020

Journal of Asian Earth Sciences

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Carbonate Minerals and the CO2-Carbonic Acid System

Cited by 2 publications

References 61 publications

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets

Carbon and oxygen isotopes of calcified root cells, carbonate nodules and total inorganic carbon in the Chinese loess–paleosol sequence: The application of paleoenvironmental studies

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Carbonate Minerals and the CO2-Carbonic Acid System

Cited by 2 publications

References 61 publications

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)2 Nanosheets

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)2 Nanosheets

Carbon and oxygen isotopes of calcified root cells, carbonate nodules and total inorganic carbon in the Chinese loess–paleosol sequence: The application of paleoenvironmental studies

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Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets

Hydrolysis of Methoxylated Nickel Hydroxide Leading to Single-Layer Ni(OH)₂ Nanosheets