Effects of Reduction Temperature and Metal−Support Interactions on the Catalytic Activity of Pt/γ-Al2O3and Pt/TiO2for the Oxidation of CO in the Presence and Absence of H2

2005 ◽  
Vol 109 (49) ◽  
pp. 23430-23443 ◽  
Author(s):  
Oleg S. Alexeev ◽  
Soo Yin Chin ◽  
Mark H. Engelhard ◽  
Lorna Ortiz-Soto ◽  
Michael D. Amiridis
Keyword(s):  
Catalytic Activity ◽  
Reduction Temperature ◽  
Oxidation Of Co ◽  
Metal Support ◽  
Metal Support Interactions ◽  
Presence And Absence

Engineering surface defects and metal–support interactions on Pt/TiO2(B) nanobelts to boost the catalytic oxidation of CO

2018 ◽  
Vol 8 (19) ◽  
pp. 4934-4944 ◽  
Author(s):  
Jinghua Liu ◽  
Tong Ding ◽  
Hao Zhang ◽  
Guangcheng Li ◽  
Jinmeng Cai ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Catalytic Oxidation ◽  
Water Resistance ◽  
Surface Defects ◽  
High Catalytic Activity ◽  
Oxidation Of Co ◽  
Catalytic Oxidation Of Co ◽  
Metal Support ◽  
Metal Support Interactions

The thermally reduced Pt/TiO2(B) catalysts show high catalytic activity and good water resistance for the catalytic oxidation of CO.

Improved stability and activity of Fe-based catalysts through strong metal support interactions due to extrinsic oxygen vacancies in Ce0.8Sm0.2O2−δ for the efficient synthesis of ammonia

2020 ◽  
Vol 8 (32) ◽  
pp. 16676-16689 ◽  
Author(s):  
John Humphreys ◽  
Rong Lan ◽  
Shigang Chen ◽  
Shanwen Tao
Keyword(s):  
Catalytic Activity ◽  
Oxygen Vacancies ◽  
Ammonia Synthesis ◽  
Efficient Synthesis ◽  
Anion Vacancies ◽  
Metal Support ◽  
Improved Stability ◽  
Synthesis Catalysts ◽  
Metal Support Interactions

The SMSI between Fe and oxygen vacancies in Ce0.8Sm0.2O2−δ helps to weaken and break the strong NN bonds in N2, increasing the catalytic activity. Materials with anion vacancies improve oxygenate tolerance property of ammonia synthesis catalysts.

Fabrication, characterization, and stability of supported single-atom catalysts

2017 ◽  
Vol 7 (19) ◽  
pp. 4250-4258 ◽  
Author(s):  
Yaxin Chen ◽  
Zhiwei Huang ◽  
Zhen Ma ◽  
Jianmin Chen ◽  
Xingfu Tang
Keyword(s):  
Catalytic Activity ◽  
Single Atom ◽  
Metal Support ◽  
Metal Support Interactions

Strong metal–support interactions are key requirements for development of stable single-atom catalysts with pronounced catalytic activity.

High Catalytic Activity of Pt/Al2O3 Catalyst in CO Oxidation at Room Temperature—A New Insight into Strong Metal–Support Interactions

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1475
Author(s):  
Ireneusz Kocemba ◽  
Izabela Śmiechowicz ◽  
Marcin Jędrzejczyk ◽  
Jacek Rogowski ◽  
Jacek Michał Rynkowski
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Room Temperature ◽  
Oxygen Adsorption ◽  
High Catalytic Activity ◽  
Adsorption Sites ◽  
Co Oxidation Reaction ◽  
Metal Support ◽  
Metal Support Interactions ◽  
Al2o3 Catalyst

The concept of very strong metal–support interactions (VSMSI) was defined in regard to the interactions that influence the catalytic properties of catalysts due to the creation of a new phase as a result of a solid-state chemical reaction between the metal and support. In this context, the high catalytic activity of the 1%Pt/Al2O3 catalyst in the CO oxidation reaction at room temperature was explained. The catalyst samples were reduced at different temperatures ranging from 500 °C to 800 °C and characterized using TPR, O2/H2 titration, CO chemisorption, TPD-CO, FTIR-CO, XRD, and TOF-SIMS methods. Based on the obtained results, it was claimed that with very high temperature reduction (800 °C), nonstoichiometric platinum species [Pt(Cl)Ox] strongly anchored to Al2O3 surface are formed. These species act as the oxygen adsorption sites.

scholarly journals Studies of CO2 hydrogenation over cobalt/ceria catalysts with in situ characterization: the effect of cobalt loading and metal–support interactions on the catalytic activity

2020 ◽  
Vol 10 (19) ◽  
pp. 6468-6482 ◽  
Author(s):  
Kaixi Deng ◽  
Lili Lin ◽  
Ning Rui ◽  
Dimitriy Vovchok ◽  
Feng Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Catalytic Properties ◽  
Co2 Hydrogenation ◽  
In Situ Characterization ◽  
Control Activity ◽  
Metal Support ◽  
Metal Support Interactions ◽  
Ceria Catalysts

Metal–oxide interactions affect the catalytic properties of Co/CeO2 and can be used to control activity and selectivity.

Bioethanol selective oxidation to acetaldehyde over Ag–CeO2: role of metal–support interactions

2017 ◽  
Vol 41 (7) ◽  
pp. 2636-2641 ◽  
Author(s):  
Paresh H. Rana ◽  
Parimal A. Parikh
Keyword(s):  
Catalytic Activity ◽  
Oxygen Vacancy ◽  
Selective Oxidation ◽  
Metal Support ◽  
Metal Support Interactions

Inserted Ag creates oxygen vacancy on the surface of CeO2, leading to enhanced catalytic activity.

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