scholarly journals Unravelling the Role of Oxygen Vacancies in the Mechanism of the Reverse Water–Gas Shift Reaction by Operando DRIFTS and Ultraviolet–Visible Spectroscopy

ACS Catalysis ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 7455-7467 ◽  
Author(s):  
Luis F. Bobadilla ◽  
José L. Santos ◽  
Svetlana Ivanova ◽  
José A. Odriozola ◽  
Atsushi Urakawa
Keyword(s):  
Oxygen Vacancies ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Visible Spectroscopy ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas

Essential role of oxygen vacancies of Cu-Al and Co-Al spinel oxides in their catalytic activity for the reverse water gas shift reaction

2020 ◽  
Vol 266 ◽  
pp. 118669 ◽  
Author(s):  
Ali M. Bahmanpour ◽  
Florent Héroguel ◽  
Murat Kılıç ◽  
Christophe J. Baranowski ◽  
Pascal Schouwink ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Vacancies ◽  
Essential Role ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Reverse Water Gas Shift ◽  
Spinel Oxides ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Use of CuNi/YSZ and CuNi/SDC Catalysts for the Reverse Water Gas Shift Reaction

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Maxime Lortie ◽  
Rima J. Isaifan
Keyword(s):  
Oxygen Vacancies ◽  
Yttria Stabilized Zirconia ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Stabilized Zirconia ◽  
Reverse Water Gas Shift ◽  
Partial Pressures ◽  
Modified Polyol Method ◽  
Shift Reaction ◽  
Water Gas

Cu50Ni50 nanoparticles were synthesized using a modified polyol method and deposited on samarium-doped ceria, SDC, and yttria-stabilized zirconia, YSZ, supports to form reverse water-gas shift, RWGS, catalysts. The best CO yields, obtained with the Cu50Ni50/SDC catalyst, were about 90% of the equilibrium CO yields. In contrast CO yields using Pt/SDC catalysts were equal to equilibrium CO yields at 700°C. Catalyst selectivity to CO was 100% at hydrogen partial pressures equal to CO2 partial pressures, 1 kPa, and decreased as methane was formed when the hydrogen partial pressure was 2 kPa or greater. The reaction results were explained using a combination of Eley-Rideal and Langmuir-Hinshelwood mechanisms that involved adsorption on the metal surface and the concentration of oxygen vacancies in the support. Finally the Cu50Ni50/SDC catalyst was found to be thermally stable for 48 hours at 600/700°C.

Insight towards the role of ceria-based supports for reverse water gas shift reaction over RuFe nanoparticles

2018 ◽  
Vol 26 ◽  
pp. 350-358 ◽  
Author(s):  
Christopher Panaritis ◽  
Mahesh Edake ◽  
Martin Couillard ◽  
Raha Einakchi ◽  
Elena A. Baranova
Keyword(s):  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas

Understanding the Role of Oxygen Vacancies in the Water Gas Shift Reaction on Ceria-Supported Platinum Catalysts

ACS Catalysis ◽  
2014 ◽  
Vol 4 (6) ◽  
pp. 2088-2096 ◽  
Author(s):  
Julia Vecchietti ◽  
Adrian Bonivardi ◽  
Wenqian Xu ◽  
Dario Stacchiola ◽  
Juan J. Delgado ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Platinum Catalysts ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Supported Platinum ◽  
Supported Platinum Catalysts ◽  
Shift Reaction ◽  
Water Gas

Promoting role of potassium in the reverse water gas shift reaction on Pt/mullite catalyst

2017 ◽  
Vol 281 ◽  
pp. 319-326 ◽  
Author(s):  
Binglian Liang ◽  
Hongmin Duan ◽  
Xiong Su ◽  
Xiaodong Chen ◽  
Yanqiang Huang ◽  
...  
Keyword(s):  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas
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