Solubilities of Nitrogen and Oxygen in 1,2-Ethanediol + Water at 298.15 K and 101.33 kPa

Yamamoto, Hideki; Tokunaga, Junji

doi:10.1021/je00015a033

Cited by 25 publications

(13 citation statements)

References 10 publications

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“…Based on the Nernst equation, E = 1.229 + (0.0592/4) lg(( p O2 [H + ] 4 )/1), the slight acidity of water would increase the O 2 /H 2 O potential, which is conducive to the oxidation of CuNWs. As for nonpolar organic solvents, based on the similarity-intermiscibility theory and the previous reported information − (as shown in Table ), the main reason for serious oxidation is the higher dissolved oxygen concentration, which is several times to hundreds of times higher than that in polar solvents. The sample stored in polar organic solvents still kept the pristine one-dimensional structure except for several oxide burrs of copper due to low dissolved oxygen concentration (Figure b–g).…”

Section: Resultsmentioning

confidence: 88%

Comparison Study on the Stability of Copper Nanowires and Their Oxidation Kinetics in Gas and Liquid

et al. 2016

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The unsaturated "dangling" bonds on the surface of nanomaterials are extremely sensitive to the external environment, which gives nanomaterials a dual nature, i.e., high reactivity and poor stability. However, studies on the long-term effects of stability and reactivity of nanomaterials under practical conditions are rarely found in the literature and lag far behind other research. Furthermore, the long-term effects on the stability and reactivity of a nanomaterial without coating under practical conditions are seriously long-neglected. Herein, by choosing copper nanowire as an example, we systematically study the stability of copper nanowires (CuNWs) in the liquid and gas phase by monitoring the change of morphology, phase, and valence state of CuNWs during storage. CuNWs exhibit good dispersibility and durable chemical stability in polar organic solvents, while CuNWs stored in water or nonpolar organic solvents evolve into a mace-like structure. Additionally, fresh CuNWs are oxidized into CuO nanotubes with thin shells by heating in air. The activation energies of oxidation of CuNWs in the gas phase are determined by the Kissinger method. More importantly, the different oxidation pathways have significant effects on the final morphology, surface area, phase, optical absorption, band gap, and vibrational property of the oxidation products. Understanding the stability and reactivity of Cu nanostructures will add value to their storage and applications. This work emphasizes the significant issue on the stability of nanostructures, which should be taken into account from the viewpoint of their practical application.

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Section: Resultsmentioning

confidence: 88%

Comparison Study on the Stability of Copper Nanowires and Their Oxidation Kinetics in Gas and Liquid

et al. 2016

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“…Because of the higher gas solubility for longer chain alcohols it is likely that more gas in the form of nanobubbles is produced for 1-propanol compared to methanol, as indicated by the results in Table 1. The volume fraction solubility (also known as the Ostwald coefficient) at 298.15 K and a 101.3 kPa partial pressure of nitrogen gas is 0.01602, 0.1536, 0.1460, and 0.1327 L nitrogen /L liquid for water, methanol, ethanol, and 1-propanol, respectively [56,57]. The decrease in the volume fraction solubility with the increasing alcohol chain length does not support the results in Table 1.…”

Section: After Alcohol-water Exchangementioning

confidence: 81%

Effect of alcohol–water exchange and surface scanning on nanobubbles and the attraction between hydrophobic surfaces

Hampton

Donose

Nguyen

2008

Journal of Colloid and Interface Science

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“…Auxiliary experiments indicate that negligible evaporation, if any, takes place under our experimental conditions. Percentages of MeOH will be given hereafter by volume, and molar concentrations were calculated by ignoring the small excess volume of mixed solvents [36].…”

Section: Methodsmentioning

confidence: 99%

Competitive homolytic and heterolytic dediazoniation mechanisms: Rate constants and product distribution of methoxy-, hydroxy-, and hydro-dediazoniation of 3- and 4-methylbenzenediazonium salts in acidic MeOH/H2O mixtures

Pazo‐Llorente

González-Romero

Bravo‐Díaz

2000

Int. J. Chem. Kinet.

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The rates and product distribution for methoxy-, hydroxy-and hydro-dediazoniation and the rate constants for disappearance of 3-and 4-methylbenzenediazonium tetrafluoroborate in acidic MeOH/H 2 O mixtures, in the presence and absence of electrolytes like HCl, NaCl, and CuCl 2 , are reported. Data were obtained by using a combination of VIS-UV and COMPETITIVE HOMOLYTIC AND HETEROLYTIC DEDIAZONIATION MECHANISMS 211HPLC techniques. The kinetics and product distributions are completely consistent with competitive homolytic and heterolytic mechanisms, the heterolytic one being predominant at any solvent composition. Heterolytic data are in agreement with the predictions of a D N ϩ A N mechanism; that is, rate determining formation of an aryl cation that reacts immediately with available nucleophiles. Selectivity values, determined from product yields, are low and independent of solvent composition. Product formation is discussed in terms of a preassociation step between aryl cations and the nucleophile, which does not account for much of the trapping, and a nucleophilic attack on a "free" arenediazonium cation. Activation parameters were also determined at 99.5% MeOH: enthalpies of activation are high and entropies of activation are positive, and they are similar to those reported for pure water.

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Solubilities of Nitrogen and Oxygen in 1,2-Ethanediol + Water at 298.15 K and 101.33 kPa

Cited by 25 publications

References 10 publications

Comparison Study on the Stability of Copper Nanowires and Their Oxidation Kinetics in Gas and Liquid

Comparison Study on the Stability of Copper Nanowires and Their Oxidation Kinetics in Gas and Liquid

Effect of alcohol–water exchange and surface scanning on nanobubbles and the attraction between hydrophobic surfaces

Competitive homolytic and heterolytic dediazoniation mechanisms: Rate constants and product distribution of methoxy-, hydroxy-, and hydro-dediazoniation of 3- and 4-methylbenzenediazonium salts in acidic MeOH/H2O mixtures

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