shift reaction
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Fuel ◽  
2022 ◽  
Vol 313 ◽  
pp. 123055
Judith González-Arias ◽  
Francisco M. Baena-Moreno ◽  
Miriam González-Castaño ◽  
Harvey Arellano-García

ACS Omega ◽  
2022 ◽  
Zhiyuan Li ◽  
Na Li ◽  
Nan Wang ◽  
Bing Zhou ◽  
Pan Yin ◽  

Yuanting Tang ◽  
Yongjie Chen ◽  
Xiao Liu ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  

The bifunctional role of noble metal/oxide interface in the activation of reactants is of vital importance in heterogeneous catalysis of water-gas shift (WGS) reaction. Herein, three types of shape-controlled TiO2...

Anna Gorlova ◽  
Andrey Zadesenets ◽  
Evgeniy Filatov ◽  
Pavel Simonov ◽  
Sergey Korenev ◽  

Catalysts ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 27
Xiaoyan Liu ◽  
Zeyu Ma ◽  
Xinhua Gao ◽  
Miaomiao Bai ◽  
Yajun Ma ◽  

Metal Fe is one of the phases existing on iron-based catalysts for a high-temperature water gas shift reaction (WGSR), but research on the activity of metal Fe in WGSR is almost not reported. In this work, the density functional theory (DFT) method was used to systematically study the reaction activity and mechanisms of WGSR on metal Fe (110), including the dissociation of H2O, the transformation of CO and the formation of H2, as well as the analysis of surface electronic properties. The results show that (1) the direct dissociation of H2O occurs easily on Fe (110) and the energy barrier is less than 0.9 eV; (2) the generation of CO2 is difficult and its energy barrier is above 1.8 eV; (3) H migrates easily on the Fe surface and the formation of H2 also occurs with an energy barrier of 1.47 eV. Combined with the results of Fe3O4, it can be concluded that the active phase should be Fe3O4 with O vacancy defects, and the iron-rich region plays an important role in promoting the formation of H2 in WGSR.

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