Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Katharina Grossmann"'
Autor:
Julia Rebholz, Katharina Grossmann, David Pham, Suman Pokhrel, Lutz Mädler, Udo Weimar, Nicolae Barsan
Publikováno v:
Sensors, Vol 16, Iss 9, p 1437 (2016)
Here we present a novel concept for the selective recognition of different target gases with a multilayer semiconducting metal oxide (SMOX)-based sensor device. Direct current (DC) electrical resistance measurements were performed during exposure to
Externí odkaz:
https://doaj.org/article/3f233f8afd9a41be997a694343dca5ab
Publikováno v:
International Journal of Hydrogen Energy. 42:11150-11158
This paper proposes partial steam reforming of natural gas as a chemical storage option for excess electricity. Thermodynamic simulations with Aspen Plus® show that highest process efficiencies are reached at low steam-to-carbon (S/C) ratios in the
Publikováno v:
International Journal of Hydrogen Energy. 41:17784-17792
Steam reforming is a well-established industrial process for the production of hydrogen from hydrocarbon fuels, in most cases from natural gas. High steam to carbon ratios are applied to gain maximum methane conversion. Since steam reforming of natur
Publikováno v:
Sensors and Actuators B: Chemical
A “new” gas sensing material; Co 3 O 4 , which is mainly known as a good catalyst for CO combustion, was investigated by means of resistance and catalytic conversion measurements. A systematic screen of sensors with sensitive layers of undoped, 0
Publikováno v:
ECS Transactions. 50:221-229
Operando DRIFT spectroscopy together with resistance measurements was used to study sensitivity (here response change upon changing analyte concentration) of undoped SnO2 materials to water vapors. The materials synthesized using different protocols
Autor:
Lutz Mädler, David K. Pham, Julia Rebholz, Nicolae Barsan, Suman Pokhrel, Udo Weimar, Katharina Grossmann
Publikováno v:
Sensors, Vol 16, Iss 9, p 1437 (2016)
Sensors (Basel, Switzerland)
Sensors (Basel, Switzerland)
Here we present a novel concept for the selective recognition of different target gases with a multilayer semiconducting metal oxide (SMOX)-based sensor device. Direct current (DC) electrical resistance measurements were performed during exposure to
Publikováno v:
Sensors and Actuators B: Chemical. :787-793
The surface reactivity toward hydrogen and water vapor of three different (in grain size and amount of OH groups on the surface, different synthesis route) undoped tin dioxide materials (SnO 2 Ac, SnO 2 Cl, SnO 2 Cl K) was investigated at 300 °C by
Autor:
Nicolae Barsan, Krisztina E. Kovács, Udo Weimar, Katharina Großmann, Lutz Mädler, David K. Pham
Publikováno v:
Sensors and Actuators B: Chemical
Via flame spray pyrolysis (FSP), SnO 2 gas sensing layers have been doped with 0.01–4 wt% Sb as well as 0.01 wt% Pd in combination with 1 wt% Sb. Characterization of these materials through X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET)
Publikováno v:
Procedia Engineering. 5:119-122
Tin dioxide based gas sensors with 1% Pd doping were investigated by using DRIFT spectroscopy and DC resistance measurements in Operando conditions. The surface was characterized at 250∘C in synthetic air and the change of the surface species was m
This chapter provides an overview of the working principle of n- and p-type metal oxide gas sensors. Moreover, it gives an insight into the state of the art operando approaches and why it is necessary to combine several techniques to get as much info
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00554e8671673e88302859d7f65f745c
https://doi.org/10.1016/b978-0-12-396489-2.00008-4
https://doi.org/10.1016/b978-0-12-396489-2.00008-4