A Density Functional Theory Study of Molecular and Dissociative Adsorption of H2on Active Sites in Mordenite

2005 ◽  
Vol 109 (47) ◽  
pp. 22491-22501 ◽  
Author(s):  
L. Benco ◽  
T. Bucko ◽  
J. Hafner ◽  
H. Toulhoat
2018 ◽  
Vol 8 (13) ◽  
pp. 3321-3335 ◽  
Author(s):  
Yunhai Bai ◽  
Benjamin W. J. Chen ◽  
Guowen Peng ◽  
Manos Mavrikakis

Thermodynamic/kinetic isotope effects for H2/D2 dissociative adsorption calculated on metal surfaces offer a means to identify active sites.


2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Long Lin ◽  
Linwei Yao ◽  
Shaofei Li ◽  
Zhengguang Shi ◽  
Kun Xie ◽  
...  

AbstractFinding the active sites of suitable metal oxides is a key prerequisite for detecting CH$$_4$$ 4 . The purpose of the paper is to investigate the adsorption of CH$$_4$$ 4 on intrinsic and oxygen-vacancies CuO (111) and (110) surfaces using density functional theory calculations. The results show that CH$$_4$$ 4 has a strong adsorption energy of −0.370 to 0.391 eV at all site on the CuO (110) surface. The adsorption capacity of CH$$_4$$ 4 on CuO (111) surface is weak, ranging from −0.156 to −0.325 eV. In the surface containing oxygen vacancies, the adsorption capacity of CuO surface to CH$$_4$$ 4 is significantly stronger than that of intrinsic CuO surface. The results indicate that CuO (110) has strong adsorption and charge transfer capacity for CH$$_4$$ 4 , which may provide experimental guidance.


2013 ◽  
Vol 468 ◽  
pp. 370-383 ◽  
Author(s):  
Rui Gao ◽  
Dong-Bo Cao ◽  
Shaoli Liu ◽  
Yong Yang ◽  
Yong-Wang Li ◽  
...  

2019 ◽  
Vol 1 (3) ◽  
pp. 1165-1174 ◽  
Author(s):  
Sasfan Arman Wella ◽  
Yuji Hamamoto ◽  
Suprijadi Suprijadi ◽  
Yoshitada Morikawa ◽  
Ikutaro Hamada

Single-atom catalysis, which utilizes single atoms as active sites, is one of promising ways to enhance the catalytic activity and to reduce the amount of precious metals used. Here by means of density functional theory based thermodynamics we show that the single platinum atoms preferentially adsorb on the substitutional carbon sites at the hydrogen terminated graphene edge.


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