Two-dimensional growth of Pd on a thin FeO(111) film: a physical manifestation of strong metal–support interaction

2003 ◽  
Vol 546 (2-3) ◽  
pp. L813-L819 ◽  
Author(s):  
R. Meyer ◽  
M. Bäumer ◽  
Sh.K. Shaikhutdinov ◽  
H.-J. Freund
Keyword(s):  
Two Dimensional ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Dimensional Growth ◽  
Physical Manifestation ◽  
Strong Metal Support Interaction

scholarly journals Reversing sintering effect of Ni particles on γ-Mo2N via strong metal support interaction

2021 ◽  
Author(s):  
Lili Lin ◽  
Jinjia Liu ◽  
Xi Liu ◽  
Zirui Gao ◽  
Ning Rui ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Experimental Studies ◽  
Two Dimensional ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Ni Clusters ◽  
Strong Metal Support Interaction ◽  
Sintering Effect

Abstract The reverse sintering effect of Ni particles under thermal treatment has been observed in the Ni/γ-Mo2N catalysts. The ab initio molecular dynamic simulation has demonstrated the redispersion of metallic Ni particles into under-coordinated two-dimensional Ni clusters over γ-Mo2N is a thermodynamically favorable process. Utilizing pre-synthesized 4 nm Ni nanoparticles as the loaded particles, a Ni-4nm/γ-Mo2N model catalyst was synthesized and used to study the reverse sintering effect by the combination of multiple in-situ characterization methods, including in-situ quick XANES and EXAFS, ambient pressure XPS and environmental SE/STEM etc. The theoretical and experimental studies both confirmed the reverse sintering effect in the Ni-γ-Mo2N system is driven by the strong metal-support interaction between Ni and γ-Mo2N. The potential application of the reverse sintering effect in heterogeneous catalysis has been realized using the high temperature favored CO2 hydrogenation reaction. The under-coordinated two-dimensional layered Ni clusters on molybdenum nitride support generated from the Ni-4nm/γ-Mo2N has been demonstrated to be a thermally stable catalyst in 50 h stability test, and exhibits a remarkable catalytic selectivity reverse compared with traditional Ni based catalyst, leading to a chemo-specific CO2 hydrogenation to CO.

Dynamical Observation and Detailed Description of Catalysts under Strong Metal–Support Interaction

Nano Letters ◽  
2016 ◽  
Vol 16 (7) ◽  
pp. 4528-4534 ◽  
Author(s):  
Shuyi Zhang ◽  
Philipp N. Plessow ◽  
Joshua J. Willis ◽  
Sheng Dai ◽  
Mingjie Xu ◽  
...  
Keyword(s):  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Strong Metal Support Interaction

Size-dependent strong metal-support interaction in Pd/ZnO catalysts for hydrogenation of CO2 to methanol

2021 ◽  
Author(s):  
Liangcai Zhang ◽  
Xinyu Liu ◽  
Hengwei Wang ◽  
Lina Cao ◽  
Chenxi Huang ◽  
...  
Keyword(s):  
Catalytic Reactions ◽  
Hydrogenation Of Co2 ◽  
Size Dependent ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
The Stability ◽  
Smsi Effect ◽  
Strong Metal Support Interaction

Strong metal-support interaction (SMSI) has long been studied in catalytic reactions. Proper utilization of the SMSI effect might not only improve the stability of the catalysts, but also the activity...

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