scholarly journals Shedding Light on CO Oxidation Surface Chemistry on Single Pt Catalyst Nanoparticles Inside a Nanofluidic Model Pore

ACS Catalysis ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 2021-2033
Author(s):  
David Albinsson ◽  
Stephan Bartling ◽  
Sara Nilsson ◽  
Henrik Ström ◽  
Joachim Fritzsche ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Co Oxidation ◽  
Pt Catalyst ◽  
Catalyst Nanoparticles ◽  
Model Pore ◽  
Oxidation Surface

Mathematical Modelling of CO-oxidation on Modified Pt-Catalyst

2004 ◽  
pp. 393-397
Author(s):  
Georgii G. Yelenin ◽  
Dmitrii S. Nadobenko ◽  
Maria G. Yelenina
Keyword(s):  
Mathematical Modelling ◽  
Co Oxidation ◽  
Pt Catalyst

scholarly journals Multimodal Operando Electron Microscopy Approach to Study Pt Catalyst During CO Oxidation Reaction

2019 ◽  
Vol 25 (S2) ◽  
pp. 1448-1449 ◽  
Author(s):  
M. Plodinec ◽  
E. Stotz ◽  
L. Sandoval-Diaz ◽  
R. Schlögl ◽  
T. Lunkenbein
Keyword(s):  
Electron Microscopy ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Pt Catalyst ◽  
Co Oxidation Reaction

Low-temperature CO oxidation over water tolerant Pt catalyst supported on Al-modified CeO2

2013 ◽  
Vol 30 (3) ◽  
pp. 598-604 ◽  
Author(s):  
Jung-Hyun Park ◽  
Jun Hee Cho ◽  
Sung Eun Kang ◽  
Kyung Ho Cho ◽  
Tae Woo Lee ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Pt Catalyst ◽  
Low Temperature Co Oxidation

scholarly journals Preferential CO oxidation in hydrogen-rich stream over an electrochemically promoted Pt catalyst

2010 ◽  
Vol 94 (3-4) ◽  
pp. 281-287 ◽  
Author(s):  
A. de Lucas-Consuegra ◽  
A. Princivalle ◽  
A. Caravaca ◽  
F. Dorado ◽  
C. Guizard ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Pt Catalyst ◽  
Preferential Co Oxidation

scholarly journals Activation of Pt Nanoclusters on TiO2 via Tuning the Metallic Sites to Promote Low-Temperature CO Oxidation

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1280
Author(s):  
Kailin He ◽  
Qingyue Wang
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Pt Catalyst ◽  
Pt Nanoclusters ◽  
Co Oxidation Reaction ◽  
Characterization Study ◽  
H2 Pretreatment ◽  
Low Temperature Co Oxidation ◽  
Surface Active ◽  
Comprehensive Characterization

Metallic Pt sites are imperative in the CO oxidation reaction. Herein, we demonstrate the tuning of Pt sites by treating a Pt catalyst in various reductive atmospheres, influencing the catalyst activities in low-temperature CO oxidation. The H2 pretreatment of Pt clusters at 200 °C decreases the T50 from 208 °C to 183 °C in the 0.1 wt % Pt/TiO2 catalyst. The T50 shows a remarkable improvement using a CO pretreatment, which decreases the T50 further to 135 °C. A comprehensive characterization study reveals the integrated reasons behind this phenomenon: (i) the extent of PtO transition to metallic Pt sites, (ii) the ample surface active oxygen triggered by metallic Pt, (iii) the CO selectively adsorbs on metallic Pt sites which participate in low-temperature CO oxidation, and (iv) the formation of the unstable intermediate such as bicarbonate, contributes together to the enhanced activity of CO pretreated Pt/TiO2.

Sign in / Sign up

Export Citation Format

Share Document