A novel Pd3O9@α-Al2O3 catalyst under a hydroxylated effect: high activity in the CO oxidation reaction

2015 ◽  
Vol 17 (48) ◽  
pp. 32140-32148 ◽  
Author(s):  
Qiaohong Li ◽  
Yongqin Wei ◽  
Rongjian Sa ◽  
Zuju Ma ◽  
Kechen Wu

A new Pd3O9@α-Al2O3 catalyst has been designed which shows superior catalytic activity for CO oxidation.

2017 ◽  
Vol 32 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Haiyan Tan ◽  
Yin Zhou ◽  
Yunfan Yan ◽  
Weibing Hu ◽  
Xinyu Shi ◽  
...  

2017 ◽  
Vol 9 (18) ◽  
pp. 15394-15398 ◽  
Author(s):  
Wenlan Ji ◽  
Zhiling Xu ◽  
Pengfei Liu ◽  
Suoying Zhang ◽  
Weiqiang Zhou ◽  
...  

2017 ◽  
Vol 53 (50) ◽  
pp. 6720-6723 ◽  
Author(s):  
Shotaro Yoshimaru ◽  
Masaaki Sadakiyo ◽  
Aleksandar Staykov ◽  
Kenichi Kato ◽  
Miho Yamauchi

A charge transfer interaction between Pt nanoparticles and MOFs modulated the catalytic activity of Pt for a CO oxidation reaction.


Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1475
Author(s):  
Ireneusz Kocemba ◽  
Izabela Śmiechowicz ◽  
Marcin Jędrzejczyk ◽  
Jacek Rogowski ◽  
Jacek Michał Rynkowski

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.


2018 ◽  
Vol 368 ◽  
pp. 217-227 ◽  
Author(s):  
Anton S. Konopatsky ◽  
Denis V. Leybo ◽  
Konstantin L. Firestein ◽  
Zakhar I. Popov ◽  
Andrey V. Bondarev ◽  
...  

2012 ◽  
Vol 83 ◽  
pp. 149-158 ◽  
Author(s):  
E.A. Lashina ◽  
E.M. Slavinskaya ◽  
N.A. Chumakova ◽  
O.A. Stonkus ◽  
R.V. Gulyaev ◽  
...  

2012 ◽  
Vol 136 (12) ◽  
pp. 124303 ◽  
Author(s):  
K. Mitsuhara ◽  
M. Tagami ◽  
T. Matsuda ◽  
A. Visikovskiy ◽  
M. Takizawa ◽  
...  

2008 ◽  
Vol 15 (01n02) ◽  
pp. 123-131 ◽  
Author(s):  
W. Y. PONG ◽  
H. Y. CHANG ◽  
H. I. CHEN ◽  
J. R. CHANG

Nanocrystalline cerium oxide ( CeO 2) particles prepared by the novel two-stage precipitation method were used for the catalysis of CO oxidation. Firstly, two shapes, i.e. particulate (P-) and needle-like (N-), CeO 2 nanoparticles were formed via proposed temperature-arranged routes. The crystalline structure, morphology, particle size, and surface area of samples were characterized by using XRD, TEM, HRTEM, and BET techniques. Furthermore, the morphological effect of the CeO 2 samples on the catalytic activity of CO oxidation was investigated. From the experimental results, it indicated that the prepared samples were all nonporous and fcc-structured CeO 2. The CeO 2 particles, as precipitating at 90°C for 5 min and then aging at 90°C, were particulate, whereas they were needle-like by aging at 0°C. The CO oxidation reaction showed that the catalytic activity of N- CeO 2 nanoparticles was higher than that of P- CeO 2, attributing from the exposed higher-energy {100} and {110} facets for N- CeO 2 nanoparticles. Moreover, the calcined samples with higher degree of crystallinity showed further promotion in catalytic activity. It was also worthy to note, that by replacing the CeO 2 catalyst by Pd / CeO 2, a large increase in the CO conversion was found, especially catalyzed by Pd /N- CeO 2.


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