Dual Metal Active Sites in an Ir 1 /FeO x Single‐Atom Catalyst: A Redox Mechanism for the Water‐Gas Shift Reaction

2020 ◽  
Vol 132 (31) ◽  
pp. 12968-12975 ◽  
Author(s):  
Jin‐Xia Liang ◽  
Jian Lin ◽  
Jingyue Liu ◽  
Xiaodong Wang ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Active Sites ◽  
Water Gas Shift ◽  
Single Atom ◽  
Water Gas Shift Reaction ◽  
Redox Mechanism ◽  
Dual Metal ◽  
Shift Reaction ◽  
Water Gas

Dual Metal Active Sites in an Ir 1 /FeO x Single‐Atom Catalyst: A Redox Mechanism for the Water‐Gas Shift Reaction

2020 ◽  
Vol 59 (31) ◽  
pp. 12868-12875 ◽  
Author(s):  
Jin‐Xia Liang ◽  
Jian Lin ◽  
Jingyue Liu ◽  
Xiaodong Wang ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Active Sites ◽  
Water Gas Shift ◽  
Single Atom ◽  
Water Gas Shift Reaction ◽  
Redox Mechanism ◽  
Dual Metal ◽  
Shift Reaction ◽  
Water Gas

Understanding Active Sites in the Water–Gas Shift Reaction for Pt–Re Catalysts on Titania

ACS Catalysis ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2597-2606 ◽  
Author(s):  
Audrey S. Duke ◽  
Kangmin Xie ◽  
Amy J. Brandt ◽  
Thathsara D. Maddumapatabandi ◽  
Salai C. Ammal ◽  
...  
Keyword(s):  
Active Sites ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Visualisation of single atom dynamics in water gas shift reaction for hydrogen generation

2016 ◽  
Vol 6 (7) ◽  
pp. 2214-2227 ◽  
Author(s):  
Pratibha L. Gai ◽  
Kenta Yoshida ◽  
Michael R. Ward ◽  
Michael Walsh ◽  
Richard T. Baker ◽  
...  
Keyword(s):  
Real Time ◽  
Hydrogen Generation ◽  
Water Gas Shift ◽  
Single Atom ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas ◽  
Atom Dynamics

In situ real time single atom resolution observations of dynamic water gas shift catalysts in CO + water (WGS) environments.

Identification of relevant active sites and a mechanism study for reverse water gas shift reaction over Pt/CeO 2 catalysts

2016 ◽  
Vol 25 (6) ◽  
pp. 1051-1057 ◽  
Author(s):  
Xiaodong Chen ◽  
Xiong Su ◽  
Binglian Liang ◽  
Xiaoli Yang ◽  
Xinyi Ren ◽  
...  
Keyword(s):  
Active Sites ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Mechanism Study ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas

Metallic Pt as active sites for the water–gas shift reaction on alkali-promoted supported catalysts

2012 ◽  
Vol 286 ◽  
pp. 279-286 ◽  
Author(s):  
Jorge H. Pazmiño ◽  
Mayank Shekhar ◽  
W. Damion Williams ◽  
M. Cem Akatay ◽  
Jeffrey T. Miller ◽  
...  
Keyword(s):  
Active Sites ◽  
Supported Catalysts ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Active and Stable MgAl2O4 and Ni(SA)/MgAl2O4 Catalysts for the Reverse Water Gas Shift Reaction

2021 ◽  
Author(s):  
Lingling Zhang ◽  
Qi Song ◽  
Yimeng Xing ◽  
Zhichun Si ◽  
Yuxiang Liu ◽  
...  
Keyword(s):  
Active Sites ◽  
Noble Metals ◽  
Water Gas Shift ◽  
High Price ◽  
Water Gas Shift Reaction ◽  
Durability Test ◽  
Adsorption Sites ◽  
Reverse Water Gas Shift ◽  
Shift Reaction ◽  
Water Gas

Reverse water gas shift reaction (RWGS) is an important process which plays a vital role in many CO2 utilization related reactions. Noble metals are the most active catalysts in RWGS, but the high price and low reserve strangled their applications. In the present work, we reported a non-transition-metal MgAl2O4 catalyst which showed outstanding activity and stability at high temperatures in the RWGS reaction and improved performance after doping of single atomic Nin+. The catalyst can obtain 46% of CO2 conversion in durability test of 75 h at 800 °C under high weight hourly space velocities (225 000 ml g-1 h-1). The adsorption sites, possible reaction route, and effects of Nin+ single atoms on the (111) surface of MgAl2O4 for RWGS were investigated by in situ DRIFTS and DFT calculations. The results indicated that the rate determining reaction step of RWGS on MgAl2O4 and Ni (SA)/MgAl2O4 were both the reaction of OH* + H* → H2O* + *, but the energy barrier was significantly reduced after introducing single atomic Nin+. Nin+ atoms can increase the hydroxyl coverage on the surface of catalyst and Al3+ sites near the Nin+ ion are considered as the predominant active sites for RWGS reactions.

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