Hydrogen peroxide dimers and the production of O2 in icy satellite surfaces

Cooper, Paul D.; Johnson, R. E.; Quickenden, T. I.

doi:10.1016/j.icarus.2003.09.008

Cited by 30 publications

(30 citation statements)

References 21 publications

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“…These OH radicals are strongly hydrogen-bonded to water molecules (Cooper et al 2003), and it is not until above 80 K that they can diffuse within a water-ice lattice (Johnson & Quickenden 1997). As pointed out by Cooper et al (2008), energetic OH radicals can diffuse short distances along ion tracks and react at 10 K, but bulk diffusion probably does not occur.…”

Section: Hydrogen Peroxidementioning

confidence: 99%

Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs

Pilling

Duarte²,

Domaracka

et al. 2010

A&A

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An experimental study of the interaction of heavy, highly charged, and energetic ions (52 MeV 58 Ni 13+ ) with pure H 2 O, pure CO 2 and mixed H 2 O:CO 2 astrophysical ice analogs is presented. This analysis aims to simulate the chemical and the physicochemical interactions induced by heavy cosmic rays inside dense and cold astrophysical environments, such as molecular clouds or protostellar clouds. The measurements were performed at the heavy ion accelerator GANIL (Grand Accélérateur National d'Ions Lourds in Caen, France). The gas samples were deposited onto a CsI substrate at 13 K. In-situ analysis was performed by a Fourier transform infrared (FTIR) spectrometer at different fluences. Radiolysis yields of the produced species were quantified. The dissociation cross sections of pure H 2 O and CO 2 ices are 1.1 and 1.9 ×10 −13 cm 2 , respectively. For mixed H 2 O:CO 2 (10:1), the dissociation cross sections of both species are about 1 × 10 −13 cm 2 . The measured sputtering yield of pure CO 2 ice is 2.2 × 10 4 molec ion −1 . After a fluence of 2−3 × 10 12 ions cm −2 , the CO 2 /CO ratio becomes roughly constant (∼0.1), independent of the initial CO 2 /H 2 O ratio. A similar behavior is observed for the H 2 O 2 /H 2 O ratio, which stabilizes at 0.01, independent of the initial H 2 O column density or relative abundance.

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Section: Hydrogen Peroxidementioning

confidence: 99%

Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs

Pilling

Duarte²,

Domaracka

et al. 2010

A&A

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“…In particular, hydrogen peroxide (H 2 O 2 ) is readily produced both by radiolysis and photolysis of ice (e.g., Johnson and Quickenden, 1997;Cooper et al, 2003;Shi et al, 2011). Peroxide is known to absorb efficiently in the UV, even in small amounts (e.g., Carlson et al, 1999) and is thought to cause reddening in the UV on other icy satellites (e.g., Hendrix et al, 1999;Hendrix and Johnson, 2008).…”

Section: Chemical Effects: H 2 O 2 Productionmentioning

confidence: 99%

Mimas’ far-UV albedo: Spatial variations

Hendrix

Cassidy

Buratti

et al. 2012

Icarus

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“…1 The recent discovery of H 2 O 2 on the surface of one of Jupiter's icy moons, Europa, 2 has renewed the interest in this substance and prompted studies inquiring how H 2 O 2 can form in that environment, [3][4][5][6] and whether it occurs in pure form or in a solid solution with water. 7,8 The properties of solid H 2 O 2 -H 2 O solutions are barely known. Early X-ray diffraction measurements 9 showed that an intermediate compound phase exists in crystalline mixtures, the dihydrate H 2 O 2 ‚2H 2 O.…”

Section: Introductionmentioning

confidence: 99%

Distillation Kinetics of Solid Mixtures of Hydrogen Peroxide and Water and the Isolation of Pure Hydrogen Peroxide in Ultrahigh Vacuum

2006

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We present results of the growth of thin films of crystalline H2O2 and H2O2*2H2O (dihydrate) in ultrahigh vacuum by distilling an aqueous solution of hydrogen peroxide. We traced the process using infrared reflectance spectroscopy, mass loss on a quartz crystal microbalance, and in a few cases ultraviolet-visible reflectance. We find that the different crystalline phases-water, dihydrate, and hydrogen peroxide-have very different sublimation rates, making distillation efficient to isolate the less volatile component, crystalline H2O2.

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Hydrogen peroxide dimers and the production of O2 in icy satellite surfaces

Cited by 30 publications

References 21 publications

Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs

Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs

Mimas’ far-UV albedo: Spatial variations

Distillation Kinetics of Solid Mixtures of Hydrogen Peroxide and Water and the Isolation of Pure Hydrogen Peroxide in Ultrahigh Vacuum

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Hydrogen peroxide dimers and the production of O2 in icy satellite surfaces

Cited by 30 publications

References 21 publications

Radiolysis of H2O:CO2ices by heavy energetic cosmic ray analogs

Radiolysis of H2O:CO2ices by heavy energetic cosmic ray analogs

Mimas’ far-UV albedo: Spatial variations

Distillation Kinetics of Solid Mixtures of Hydrogen Peroxide and Water and the Isolation of Pure Hydrogen Peroxide in Ultrahigh Vacuum

Contact Info

Product

Resources

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Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs

Radiolysis of H₂O:CO₂ices by heavy energetic cosmic ray analogs