The reaction between cerium (III) and cobalt (III). Part 2.—The effect of nitrate and of fluoride ions

Sutcliffe, L. H.; Weber, Johannes

doi:10.1039/tf9595501892

Cited by 11 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6.85. According to the literature, Ce 3+ in neutral aqueous solution tends to form Ce 3 (OH) 5 4+ oligomers. , With the coexistence of Ce 3+ and Ac in aqueous solution, Sonesson and Powell pointed out that one or two acetate anions prefer to coordinate with one Ce 3+ to form Ce–Ac complexes via electrostatic interaction . Thus, the molecular formula of hydrolysates can be noted as Ce 3 (OH) 5 (Ac) n (4– n )+ , n = 1–2.…”

Section: Results and Discussionmentioning

confidence: 99%

Two-dimensional Acetate-based Light Lanthanide Fluoride Nanomaterials (F–Ln, Ln = La, Ce, Pr, and Nd): Morphology, Structure, Growth Mechanism, and Stability

Zhang

Kang

et al. 2019

J. Am. Chem. Soc.

View full text Add to dashboard Cite

Discovery of novel two-dimensional (2D) materials is of fundamental importance but remains challenging. In this work, we design a simple and facile bottomup approach to fabricate a new family of 2D acetate-based light lanthanide fluoride nanomaterials (F−Ln, Ln = La, Ce, Pr, Nd) at room temperature and atmosphere pressure, for the first time. Various characterization techniques confirm that assynthesized F−Ln exhibit an ultrathin morphology with thickness up to 1.45 nm and lateral dimensions up to several hundred nanometers. Microstructure analysis demonstrates that F−Ln are a series of defect-rich 2D nanomaterials, which consist of nanocrystals with sub-10 nm domains. Structure characterization of F−Ce, a typical example, infers that BN-like F−Ce one-atom-layers sandwiched by intercalated acetate anions stack alternately along [001] direction to form nanocrystal building blocks of F− Ce. The study of growth mechanism suggests that three procedures are involved in the formation of F−Ce: hydrolysis reaction of cerium(III) acetate, structure transformation induced by fluorine ions, and assembly process guided by acetate anions. The as-prepared nanosheets show excellent stability with respect to environment stimuli such as air, heat, solvent, and high-energy electron beam. This study enriches the library of 2D materials and paves the way for future application of such 2D materials in areas such as catalysis, adsorption, separation, and energy storage/conversion.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Two-dimensional Acetate-based Light Lanthanide Fluoride Nanomaterials (F–Ln, Ln = La, Ce, Pr, and Nd): Morphology, Structure, Growth Mechanism, and Stability

Zhang

Kang

et al. 2019

J. Am. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…The powerful oxidizing capacity of trivalent cobalt has been shown in the recent investigations reported by Waters and his BawnI6-l1 Sutcliffe and co-workers, [12][13][14][15][16] Higginson and c o -~o r k e r s~'~~* and others. A wide variety of organic compounds-aromatic as well as aliphatic aldehydes, alcohols, ketones, olefins, and hydrocarbons-have been found to be susceptible to oxidation by cobaltic ions, and kinetics of these reactions have been reported in detail.…”

Section: Introductionmentioning

confidence: 99%

Vinyl polymerization by cobaltic ions in aqueous solution: Part I. Polymerization of methyl methacrylate

Jijie¹,

Santappa²,

Mahadevan³

1966

J. Polym. Sci. A‐1 Polym. Chem.

View full text Add to dashboard Cite

synopsisPolymerization of methyl methacrylate initiated by cobaltic ions in perchloric, nitric and sulfuric acids was studied in the temperature range 15-25°C. In all three acids, water oxidation occurred as a side reaction. In HC10, and HNOa media monomer oxidation was shown to be an additional complicating, feature. Rates of cobaltic ion disappearance, monomer disappearance, and chain lmgths of polymers were measured with variations in [MI, [Co3+], [H+], initially added [Co*+], and temperature. In HClOl and HNO, experimental results favored simult&neous initiation by Co3 + and CoOH2+ species, while in HPSO4, Co3+ ions alone were the active entities. An appropriate kinetic scheme to fit all the experimental observations is proposed. The various rate constants were evaluated.

show abstract

Reaction of poly(vinyl alcohol) with pentavalent vanadium ion

Ikada

Nishizaki

Uyama

et al. 1976

J. Polym. Sci. Polym. Chem. Ed.

View full text Add to dashboard Cite

SynopsisThe reaction of poly(viny1 alcohol) (PVAL) with V(V), i.e., pentavalent vanadium ion, was studied in aqueous &So4 medium. The viscosity change of reaction mixture with time showed a peculiar feature owing to formation of labile complex between V(V) and PVAL and the subsequent decomposition of the complex. On the other hand, the change of viscosity disappeared when NaOH was added during the reaction to neutralize HzS04 in the reaction mixture. Under a suitable condition, the reaction mixture set to a gel as a result of complex formation. It appeared that reactive sites in PVAL responsive to complexing with V(V) were 1,2-glycol unit and 1,2-ketoalcohol unit resulting from the oxidation of 1,2-glycol by V(V). The rate of oxidation was increased with increasing H2S04 concentration. The main-chain scission of PVAL took place to an insignificant extent, unless the reaction condition was severe. Based on the results obtained a reaction mechanism has been proposed.

show abstract

The reaction between cerium (III) and cobalt (III). Part 2.—The effect of nitrate and of fluoride ions

Cited by 11 publications

References 1 publication

Two-dimensional Acetate-based Light Lanthanide Fluoride Nanomaterials (F–Ln, Ln = La, Ce, Pr, and Nd): Morphology, Structure, Growth Mechanism, and Stability

Two-dimensional Acetate-based Light Lanthanide Fluoride Nanomaterials (F–Ln, Ln = La, Ce, Pr, and Nd): Morphology, Structure, Growth Mechanism, and Stability

Vinyl polymerization by cobaltic ions in aqueous solution: Part I. Polymerization of methyl methacrylate

Reaction of poly(vinyl alcohol) with pentavalent vanadium ion

Contact Info

Product

Resources

About