Thermal Decomposition of Hydrogen Peroxide in the Vapour Phase

Hart, A. B.

doi:10.1038/163876b0

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…Thus we expect the detection limit of PILS + UPLC/ESI-Q-TOFMS measurement of the mass of particle components in the range of tens of ng m -3 to a few µg m -3 . (Hart et al, 1949). Considering that the residence time of the PILS condensation chamber is only 1 s, it is expected that the original structure of thermally labile organic molecules should be mostly intact in such a short timescale.…”

Section: Sensitivity Detection Limit and Uncertaintiesmentioning

confidence: 99%

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

Zhang

Dalleska

Huang

et al. 2016

Atmospheric Environment

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Real-time and quantitative measurement of particulate matter chemical composition represents one of the most challenging problems in the field of atmospheric chemistry. In the present study, we integrate the Particle-into-Liquid Sampler (PILS) with Ultra Performance Liquid Chromatography / Electrospray ionization Quadrupole Time-of-Flight High-Resolution / Mass Spectrometry (UPLC/ESI-Q-TOFMS) for the timeresolved molecular speciation of chamber-derived secondary organic aerosol (SOA). The unique aspect of the combination of these two well-proven techniques is to provide quantifiable molecular-level information of particle-phase organic compounds on timescales of minutes. We demonstrate that the application of the PILS + UPLC/ESI-Q-TOFMS method is not limited to water-soluble inorganic ions and organic carbon, but is extended to slightly water-soluble species through collection efficiency calibration together with sensitivity and linearity tests. By correlating the water solubility of individual species with their O:C ratio, a parameter that is available for aerosol ensembles as well, we define an average aerosol O:C ratio threshold of 0.3, above which the PILS overall particulate mass collection efficiency approaches ~ 0.7. The PILS + UPLC/ESI-Q-TOFMS method can be potentially applied to probe the formation and evolution mechanism of a variety of biogenic and anthropogenic SOA systems in laboratory chamber experiments. We illustrate the application of this method to the reactive uptake of isoprene epoxydiols (IEPOX) on hydrated and acidic ammonium sulfate aerosols.

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Section: Sensitivity Detection Limit and Uncertaintiesmentioning

confidence: 99%

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

Zhang

Dalleska

Huang

et al. 2016

Atmospheric Environment

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“…Importantly, the isolation of H 2 O 2 in a pure form has received growing attention for the deeper understandings on the reactivity and dynamics at the molecular level, [8] as well as for revealing the redox signaling pathways in biotissues at the cellular level [9] . However, the study of a pure H 2 O 2 molecule is quite limited because of its high reactivity and instability caused by thermal decomposition [10] . So far, very little is known about hydrogen‐bonding (H‐bonding) modes of small H 2 O 2 clusters with a short lifetime (milliseconds to minutes order) prepared by depositing them onto argon matrix [11] or water nanoparticles [8] .…”

Section: Figurementioning

confidence: 99%

An H₂O₂ Molecule Stabilized inside Open‐Cage C₆₀ Derivatives by a Hydroxy Stopper

Murata

Huang

Hasegawa

et al. 2021

Chemistry A European J

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An H2O2 molecule was isolated inside hydroxylated open‐cage fullerene derivatives by mixing an H2O2 solution with a precursor molecule followed by reduction of one of carbonyl groups on its orifice. Depending on the reduction site, two structural isomers for H2O2@open‐fullerenes were obtained. A high encapsulation ratio of 81 % was attained at low temperature. The structures of the peroxosolvate complexes thus obtained were studied by 1H NMR spectroscopy, X‐ray analysis, and DFT calculations, showing strong hydrogen bonding between the encapsulated H2O2 and the hydroxy group located at the center of the orifice. This OH group was found to act as a kinetic stopper, and the formation of the hydrogen bonding caused thermodynamic stabilization of the H2O2 molecule, both of which prevent its escape from the cage. One of the peroxosolvates was isolated by HPLC, affording H2O2@open‐fullerene with 100 % encapsulation ratio, likely due to the intramolecular hydrogen‐bonding interaction.

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“…Effects of sound waves (350,493,519) and electrical fields (178) on burners are reported. Hart (357) noted that hydrogen peroxide vapor can be exploded with a hot wire or spark and can support a stable flame.…”

Section: Industrial and Engineering Chemistrymentioning

confidence: 99%

Combustion

Lewıs¹,

Elbe²

1951

Ind. Eng. Chem.

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Thermal Decomposition of Hydrogen Peroxide in the Vapour Phase

Cited by 9 publications

References 2 publications

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

An H₂O₂ Molecule Stabilized inside Open‐Cage C₆₀ Derivatives by a Hydroxy Stopper

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Thermal Decomposition of Hydrogen Peroxide in the Vapour Phase

Cited by 9 publications

References 2 publications

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

Time-resolved molecular characterization of organic aerosols by PILS + UPLC/ESI-Q-TOFMS

An H2O2 Molecule Stabilized inside Open‐Cage C60 Derivatives by a Hydroxy Stopper

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An H₂O₂ Molecule Stabilized inside Open‐Cage C₆₀ Derivatives by a Hydroxy Stopper