scholarly journals Ambient pressure XPS and IRRAS investigation of ethanol steam reforming on Ni–CeO2(111) catalysts: an in situ study of C–C and O–H bond scission

2016 ◽  
Vol 18 (25) ◽  
pp. 16621-16628 ◽  
Author(s):  
Zongyuan Liu ◽  
Tomáš Duchoň ◽  
Huanru Wang ◽  
David C. Grinter ◽  
Iradwikanari Waluyo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Surface Chemistry ◽  
Steam Reforming ◽  
Ambient Pressure ◽  
Ethanol Steam Reforming ◽  
In Situ Study ◽  
Ambient Pressure Xps ◽  
Bond Scission ◽  
Ethanol Steam

In situ investigation of the surface chemistry of ethanol steam reforming & metal-oxide interactions over Ni–CeOx(111).

scholarly journals Unraveling the Chemical State of Cobalt in Co-Based Catalysts during Ethanol Steam Reforming: an in Situ Study by Near Ambient Pressure XPS and XANES

ACS Catalysis ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 9625-9636 ◽  
Author(s):  
Cristián Huck-Iriart ◽  
Lluís Soler ◽  
Albert Casanovas ◽  
Carlo Marini ◽  
Jordi Prat ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Ambient Pressure ◽  
Chemical State ◽  
Ethanol Steam Reforming ◽  
In Situ Study ◽  
Ambient Pressure Xps ◽  
Ethanol Steam ◽  
Near Ambient Pressure Xps

scholarly journals In situ ambient pressure XPS observation of surface chemistry and electronic structure of α-Fe2O3 and γ-Fe2O3 nanoparticles

2018 ◽  
Vol 455 ◽  
pp. 1019-1028 ◽  
Author(s):  
Dorota Flak ◽  
Qianli Chen ◽  
Bongjin Simon Mun ◽  
Zhi Liu ◽  
Mieczysław Rękas ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Surface Chemistry ◽  
Ambient Pressure ◽  
Fe2o3 Nanoparticles ◽  
Ambient Pressure Xps

In situ IR spectroscopy study of ethanol steam reforming in the presence of Pt–Ru/DND nanocatalysts

2017 ◽  
Vol 12 (5-6) ◽  
pp. 315-325 ◽  
Author(s):  
G. N. Bondarenko ◽  
M. M. Ermilova ◽  
M. N. Efimov ◽  
L. M. Zemtsov ◽  
G. P. Karpacheva ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Spectroscopy Study ◽  
In Situ Ir ◽  
Ethanol Steam ◽  
In Situ Ir Spectroscopy

scholarly journals In situ study of the electronic structure of atomic layer deposited oxide ultrathin films upon oxygen adsorption using ambient pressure XPS

2016 ◽  
Vol 6 (18) ◽  
pp. 6778-6783 ◽  
Author(s):  
Bao-Hua Mao ◽  
Ethan Crumlin ◽  
Eric C. Tyo ◽  
Michael J. Pellin ◽  
Stefan Vajda ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Ultrathin Films ◽  
Ambient Pressure ◽  
Atomic Layer ◽  
Oxygen Adsorption ◽  
Band Bending ◽  
In Situ Study ◽  
Ambient Pressure Xps ◽  
Effect Of Oxygen

APXPS was used to investigate the effect of oxygen adsorption on the band bending and electron affinity of ALD Al2O3, ZnO and TiO2 ultrathin films.

Mechanism of Ethanol Steam Reforming Over Pt/(Ni+Ru)-Promoted Oxides by FTIRS In Situ

2016 ◽  
Vol 59 (15-16) ◽  
pp. 1332-1342 ◽  
Author(s):  
Vladislav A. Sadykov ◽  
Olga V. Chub ◽  
Yurii A. Chesalov ◽  
Natalia V. Mezentseva ◽  
Svetlana N. Pavlova ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Ethanol Steam

scholarly journals Promoting the Selectivity of Pt/m-ZrO2 Ethanol Steam Reforming Catalysts with K and Rb Dopants

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2233
Author(s):  
Michela Martinelli ◽  
Richard Garcia ◽  
Caleb D. Watson ◽  
Donald C. Cronauer ◽  
A. Jeremy Kropf ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Catalyst Composition ◽  
Reforming Catalysts ◽  
Hydrogen Selectivity ◽  
Temperature Programmed ◽  
Diffuse Reflectance Infrared ◽  
Temperature Programmed Reaction ◽  
Ethanol Steam

The ethanol steam reforming reaction (ESR) was investigated on unpromoted and potassium- and rubidium-promoted monoclinic zirconia-supported platinum (Pt/m-ZrO2) catalysts. Evidence from in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) characterization indicates that ethanol dissociates to ethoxy species, which undergo oxidative dehydrogenation to acetate followed by acetate decomposition. The acetate decomposition pathway depends on catalyst composition. The decarboxylation pathway tends to produce higher overall hydrogen selectivity and is the most favored route at high alkali loading (2.55 wt.% K and higher or 4.25 wt.% Rb and higher). On the other hand, decarbonylation is a significant route for the undoped catalyst or when a low alkali loading (e.g., 0.85% K or 0.93% Rb) is used, thus lowering the overall H2 selectivity of the process. Results of in situ DRIFTS and the temperature-programmed reaction of ESR show that alkali doping promotes forward acetate decomposition while exposed metallic sites tend to facilitate decarbonylation. In previous work, 1.8 wt.% Na was found to hinder decarbonylation completely. Due to the fact that 1.8 wt.% Na is atomically equivalent to 3.1 wt.% K and 6.7 wt.% Rb, the results show that less K (2.55% K) or Rb (4.25% Rb) is needed to suppress decarbonylation; that is, more basic cations are more efficient promoters for improving the overall hydrogen selectivity of the ESR process.

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