Pt-Embedded CuOx–CeO2 Multicore–Shell Composites: Interfacial Redox Reaction-Directed Synthesis and Composition-Dependent Performance for CO Oxidation

2018 ◽  
Vol 10 (40) ◽  
pp. 34172-34183 ◽  
Author(s):  
Ke Wu ◽  
Xin-Pu Fu ◽  
Wen-Zhu Yu ◽  
Wei-Wei Wang ◽  
Chun-Jiang Jia ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Redox Reaction ◽  
Directed Synthesis

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.

Interfacial reaction-directed synthesis of a ceria nanotube-embedded ultra-small Pt nanoparticle catalyst with high catalytic activity and thermal stability

2016 ◽  
Vol 4 (37) ◽  
pp. 14148-14154 ◽  
Author(s):  
Yong Wang ◽  
Guolong Song ◽  
Zhenhe Xu ◽  
Federico Rosei ◽  
Dongling Ma ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Interfacial Reaction ◽  
High Catalytic Activity ◽  
Pt Nanoparticle ◽  
Directed Synthesis ◽  
Nanoparticle Catalyst

Due to the ultra-small size of Pt NPs and the extensive contact between Pt and ceria, the ceria nanotube-embedded ultra-small Pt nanoparticle catalyst exhibits remarkable catalytic activity and thermal stability toward CO oxidation.

Interfacial redox reaction-directed synthesis of silver@cerium oxide core–shell nanocomposites as catalysts for rechargeable lithium–air batteries

2015 ◽  
Vol 286 ◽  
pp. 136-144 ◽  
Author(s):  
Ying Liu ◽  
Man Wang ◽  
Lu-Jie Cao ◽  
Ming-Yang Yang ◽  
Samson Ho-Sum Cheng ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Redox Reaction ◽  
Core Shell ◽  
Directed Synthesis ◽  
Lithium Air Batteries

Facile synthesis of highly-dispersed Pt/CeO2 by a spontaneous surface redox chemical reaction for CO oxidation

2018 ◽  
Vol 8 (13) ◽  
pp. 3233-3237 ◽  
Author(s):  
Fangxian Cao ◽  
Sai Zhang ◽  
Wei Gao ◽  
Tian Cao ◽  
Yongquan Qu
Keyword(s):  
Metal Ions ◽  
Co Oxidation ◽  
Chemical Reaction ◽  
Redox Reaction ◽  
Facile Synthesis ◽  
Oxidation Activity ◽  
Highly Dispersed ◽  
Surface Redox ◽  
Surface Redox Reaction

A highly-dispersed Pt/CeO2 catalyst synthesized through a spontaneous surface redox reaction between metal ions and Ce(OH)3/CeO2 nanorods delivers high CO oxidation activity.

Catalytic CO Oxidation on Unreconstructed Cu(110) by Reactive As-Adsorbed Oxygen Atoms below 230 K

1996 ◽  
Vol 100 (3) ◽  
pp. 1048-1054 ◽  
Author(s):  
Tsuyoshi Sueyoshi ◽  
Takehiko Sasaki ◽  
Yasuhiro Iwasawa
Keyword(s):  
Co Oxidation ◽  
Adsorbed Oxygen ◽  
Catalytic Co Oxidation ◽  
Oxygen Atoms
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