Engineering Ni3+ Cations in NiO Lattice at the Atomic Level by Li+ Doping: The Roles of Ni3+ and Oxygen Species for CO Oxidation

ACS Catalysis ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 8033-8045 ◽  
Author(s):  
Xianglan Xu ◽  
Lin Li ◽  
Jin Huang ◽  
Hua Jin ◽  
Xiuzhong Fang ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Atomic Level ◽  
Oxygen Species ◽  
Li Doping

scholarly journals Correction: Activity enhancement of Pt/MnOx catalyst by novel β-MnO2 for low-temperature CO oxidation: study of the CO–O2 competitive adsorption and active oxygen species

2020 ◽  
Vol 10 (20) ◽  
pp. 7067-7067
Author(s):  
Ningqiang Zhang ◽  
Lingcong Li ◽  
Rui Wu ◽  
Liyun Song ◽  
Lirong Zheng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Competitive Adsorption ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Oxidation Study ◽  
Low Temperature Co Oxidation ◽  
Activity Enhancement

Correction for ‘Activity enhancement of Pt/MnOx catalyst by novel β-MnO2 for low-temperature CO oxidation: study of the CO–O2 competitive adsorption and active oxygen species’ by Ningqiang Zhang et al., Catal. Sci. Technol., 2019, 9, 347–354, DOI: 10.1039/C8CY01879K.

scholarly journals New methods of controlled monolayer-to-multilayer deposition of Pt for designing electrocatalysts at an atomic level

2001 ◽  
Vol 66 (11-12) ◽  
pp. 887-898 ◽  
Author(s):  
S.R. Brankovic ◽  
J.X. Wang ◽  
R.R. Adzic
Keyword(s):  
Co Oxidation ◽  
Electrode Surface ◽  
Redox Reaction ◽  
Atomic Level ◽  
The Other ◽  
Spontaneous Deposition ◽  
Co Tolerance ◽  
New Methods ◽  
Ru Nanoparticles ◽  
Local Cell

Two new methods for monolayer-to-multileyer Pt deposition are presented. One involves Pt deposition by the replacement of an UPD metal monolayer on an electrode surface and the other the spontaneous deposition of Pt on Ru. The first method, exemplified by the replacement of a Cu monolayer on a Au(111) surface, occurs as a spontaneous irreversible redox reaction in which the Cu monolayer is oxidized by Pt cations, which are reduced and simultaneously deposited. The second method is illustrated by the deposition of Pt on a Ru(0001) surface and on carbon-supported Ru nanoparticles. This deposition takes place upon immersion of a UHV-prepared Ru(0001) crystal or Ru nanoparticles, reduced in H2, in a solution containing PtCl6 2- ions. The oxidation of Ru to RuOH by a local cell mechanism appears to be coupled with Pt deposition. This method facilitates the design of active Pt-Ru catalysts with ultimately low Pt loadings. Only a quarter of a monolayer of Pt on Ru nanoparticles yields an electrocatalyst with higher activity and CO tolerance for H2/CO oxidation than commercial Pt-Ru alloy electrocatalysts with considerably higher Pt loadings.

Potassium-incorporated manganese oxide enhances the activity and durability of platinum catalyst for low-temperature CO oxidation

2021 ◽  
Author(s):  
Xuelan Yan ◽  
Tao Gan ◽  
Shaozhen Shi ◽  
Juan Du ◽  
Guohao Xu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Manganese Oxide ◽  
Platinum Catalyst ◽  
Potassium Ions ◽  
Oxygen Species ◽  
Surface Oxygen ◽  
Highly Efficient ◽  
Low Temperature Co Oxidation

Potassium ions in the tunnel of MnO2 is demonstrated significantly enhancing the activity of surface oxygen species, which is favorable for preparing highly efficient Pt-based catalysts for low-temperature CO oxidation.

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