Adsorption kinetics and dynamics of small organic molecules on a silica wafer: Butane, pentane, nonane, thiophene, and methanol adsorption on SiO2/Si(111)

Funk, S.; Goering, J.; Burghaus, U.

doi:10.1016/j.apsusc.2008.02.041

Cited by 26 publications

(23 citation statements)

References 28 publications

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“…The results for two different IF-WS 2 samples are depicted in Fig. 4, together with the data for a clean silica support [23]. Accordingly, E d for thiophene/IF-WS 2 initially decreases with H, and levels out at 41 kJ/mol for large exposures.…”

Section: Kinetic Parameters Of Thiophene Adsorptionmentioning

confidence: 84%

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Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

et al. 2008

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Section: Kinetic Parameters Of Thiophene Adsorptionmentioning

confidence: 84%

“…2c as a function of exposure [23]. A comparison of the two data sets suggests assigning the r-peak to molecular thiophene desorption [23,24] for a detailed characterization of the adsorption kinetics of some small organic molecules on silica wafers.) The a 1 peak (Fig.…”

Section: Molecular Adsorption Of Thiophene At Low Temperaturesmentioning

confidence: 99%

Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

et al. 2008

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“…We assign the broad features detectable already at small exposures and consisting of two overlapping structures, to n-pentane adsorption in the ML range. Experiments on clean silica wafer (Refs [31,36]) indicate that the high-temperature TDS feature is related to the bare silica (Si-peak) and the lower temperature peak with adsorption of n-pentane on JSC-1a particles (JSC-peak). The low-temperature peaks, with lining up leading edges, are the signature of n-pentane condensation (C peak).…”

Section: Water and Alkane Coadsorptionmentioning

confidence: 98%

Adsorption of water on JSC‐1A (simulated moon dust samples)—a surface science study

Goering

Sah

Burghaus

et al. 2008

Surface & Interface Analysis

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JSC-1a (a simulated lunar dust sample) supported on a silica wafer (SiO 2 /Si(111)) has been characterized by scanning electron microscopy (SEM), energy dispersive x-ray (EDX) spectroscopy, and Auger electron spectroscopy (AES). The adsorption kinetics of water has been studied primarily by thermal desorption spectroscopy (TDS) and in addition by collecting isothermal adsorption transients. Blind experiments on the silica support have been performed as well. JSC-1a consists mostly of aluminosilicate glass and other minerals containing Fe, Na, Ca, and Mg, as characterized in detail in prior studies, for example, at NASA. The particle sizes span the range from a few micrometers up to 100 µm. At small exposures, H 2 O TDS is characterized by broad (100-450) K structures; at large exposures, distinct TDS peaks emerge, which are assigned to amorphous solid water (ASW) (145 K) and crystalline ice (CI) (165 K). Water dissociates on JSC-1a at small exposures but not on the bare silica support. Coadsorption TDS data (alkane-water mixtures) indicate that rather porous condensed ice layers form at large exposures, with the mineral particles acting most likely as nucleation sites. At thermal impact energies, the initial adsorption probability amounts to 0.92 ± 0.05. It is evident that the drop-and-dry technique, developed in studies about nanoparticles/tubes, can be extended to obtain samples for surface science studies based on powders consisting of particles with rather large diameters.

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“…The CO 2 experiments were repeated with this silica sample. Clean and defect free silica does not adsorb CO 2 down to 95 K35,36 and can be considered a blind sample. Ideally any CO 2 desorption detected with the blind sample must come from the sample holder.…”

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Unexpected high binding energy of CO₂ on CH₃NH₃PbI₃ lead-halide organic–inorganic perovskites via bicarbonate formation

et al. 2018

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Adsorption kinetics and dynamics of small organic molecules on a silica wafer: Butane, pentane, nonane, thiophene, and methanol adsorption on SiO2/Si(111)

Cited by 26 publications

References 28 publications

Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

Adsorption of water on JSC‐1A (simulated moon dust samples)—a surface science study

Unexpected high binding energy of CO₂ on CH₃NH₃PbI₃ lead-halide organic–inorganic perovskites via bicarbonate formation

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Adsorption kinetics and dynamics of small organic molecules on a silica wafer: Butane, pentane, nonane, thiophene, and methanol adsorption on SiO2/Si(111)

Cited by 26 publications

References 28 publications

Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

Reactive and Non-reactive Interactions of Thiophene with WS2 Fullerene-like Nanoparticles: An Ultra-high Vacuum Surface Chemistry Study

Adsorption of water on JSC‐1A (simulated moon dust samples)—a surface science study

Unexpected high binding energy of CO2 on CH3NH3PbI3 lead-halide organic–inorganic perovskites via bicarbonate formation

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Unexpected high binding energy of CO₂ on CH₃NH₃PbI₃ lead-halide organic–inorganic perovskites via bicarbonate formation