Zobrazeno 1 - 10
of 139
pro vyhledávání: '"L. G. Petersson"'
Publikováno v:
Journal of Applied Physics. 81:2094-2100
Gas flow in long, narrow, very shallow, micromachined silicon dioxide–quartz glass channels was studied with the use of a mass spectrometric system. The channel bottom was partly covered with an evaporated, 10-A-thick platinum film along its whole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8def4c30da86aba49829fcb371f92fa2
https://doi.org/10.1063/1.364261
https://doi.org/10.1063/1.364261
Publikováno v:
Surface Science. :804-808
We have studied dehydrogenation and subsequent permeation of hydrogen from some small alcohols and hydrocarbons over a 20 μm thin Pd membrane at temperatures between 523 and 623 K. It is only for the smaller alcohols that significant amounts of hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23dbcdb9ed55926a28082780c4b9e284
https://doi.org/10.1016/0039-6028(96)00269-5
https://doi.org/10.1016/0039-6028(96)00269-5
Autor:
L.-G. Petersson, Ingemar Lundström
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 14:1539-1545
We first review the principles of gas sensitive field effect devices with catalytic metal gates. A discussion about recent experiments under ultrahigh vacuum conditions is given. More particularly, we consider the properties of the interface between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb925a6d9682db7cbc938062cefd8995
https://doi.org/10.1116/1.580292
https://doi.org/10.1116/1.580292
Autor:
Joakim Fogelberg, L.-G. Petersson
Publikováno v:
Surface Science. 350:91-102
We have established a model for the water forming reaction on Pd in the temperature range 350–475 K. Importantly, the model takes into account the possibility that hydrogen may absorb and adsorb at interface sites on supported Pd catalysts. It is s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47f6ccf5f6d1d58ff894cfd88c64c6dc
https://doi.org/10.1016/0039-6028(96)80059-8
https://doi.org/10.1016/0039-6028(96)80059-8
Publikováno v:
ResearcherID
C2H4 oxidation on plane Pt/SiO2 model catalysts with various Pt loadings was studied atT = 373–473 K and in the pressure ranges 10−6–102 Torr C2H4 and 0.3–1500 Torr 02 (1 Torr = 133.3 Pa). Mass spectrometry combined with spatially resolved ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9975bf7a6a4367af57f067f873bfc8c8
https://doi.org/10.1007/bf00813742
https://doi.org/10.1007/bf00813742
Publikováno v:
Journal of Applied Physics. 78:988-996
A kinetic modeling of the hydrogen interaction with a Pd‐SiO2‐Si (Pd‐MOS) device is reported. The model is fitted to a number of experimental results, mainly from mass spectrometric desorption meas ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6af1855ad4caf48f7d2a7909fa2afb8
https://doi.org/10.1063/1.360293
https://doi.org/10.1063/1.360293
Publikováno v:
Journal of Applied Physics. 76:142-147
It has recently been shown that micromachined channels can be used to study gas transport at Knudsen‐like conditions also close to atmospheric pressures. The channels are etched into a silicon surface and covered by a glass lid through anodic bondi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfb0b595008f019153e9952f0e886412
https://doi.org/10.1063/1.357119
https://doi.org/10.1063/1.357119
Autor:
Mats Eriksson, L.-G. Petersson
Publikováno v:
Surface Science. 311:139-152
Oxidation of H2 and CO on large, oxygen preexposed Pd islands supported on SiO2, has been investigated in the temperature range 323 ⩽, T ⩽ 523 K. The results have been compared with the corresponding reactions on a polycrystalline Pd film. A maxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7d71a5bc7147830d91831967c00f15
https://doi.org/10.1016/0039-6028(94)90485-5
https://doi.org/10.1016/0039-6028(94)90485-5
Autor:
Ulf Ackelid, L.-G. Petersson
Publikováno v:
Surface Science. :500-505
We demonstrate a new method, based on spatially resolved gas sampling, for studies of a heterogeneous catalytic reaction affected by mass transport in the gas phase. By applying Fick's law to the measured pressure gradients, the net consumption rates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec484adab17e637b907705ef5a57ac37
https://doi.org/10.1016/0039-6028(92)91299-q
https://doi.org/10.1016/0039-6028(92)91299-q
Publikováno v:
Journal of Applied Physics. 70:453-456
The photodissociative splitting of water has been studied in gas phase on a plane solid surface. A hydrogen sensitive Pd‐metal‐oxide‐semiconductor (MOS) structure was coated with 1–2 nm TiOx and exposed to water vapor and ultraviolet light. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2681436ffeccae2d258eba45297e17
https://doi.org/10.1063/1.350273
https://doi.org/10.1063/1.350273