Topological transformation of LDH nanosheets to highly dispersed PtNiFe nanoalloys enhancing CO oxidation performance

Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14882-14894 ◽  
Author(s):  
Junfang Ding ◽  
Liping Li ◽  
Ye Wang ◽  
Huixia Li ◽  
Min Yang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Superior Performance ◽  
Oxide Interface ◽  
Topological Transformation ◽  
Highly Dispersed ◽  
Oxidation Performance

Highly dispersed nanoalloys with a tailored metal–oxide interface are pivotal in developing advanced catalysts with superior performance for applications.

Enhancing Oxidation Performance by Control of Interfacial Segregation and Microstructural Design

1999 ◽  
Vol 586 ◽  
Author(s):  
Kathleen B. Alexander ◽  
Bruce A. Pint ◽  
Peter F. Tortorelli
Keyword(s):  
Electron Microscopy ◽  
High Temperature ◽  
Metal Oxide ◽  
Analytical Electron Microscopy ◽  
Reactive Elements ◽  
Oxide Scales ◽  
Oxide Interface ◽  
Oxide Interfaces ◽  
Oxidation Performance ◽  
Interfacial Segregation

ABSTRACTThermally-grown oxide scales on high temperature alloys can provide oxidation protection if they are slow-growing, dense and adherent to the substrate. The factors affecting the integrity of the metal/oxide interface during dynamic oxidation processes are complex and include interfacial segregation, interface morphology, near-interface substrate properties, as well as the development of stresses in the growing oxide scale. Minor additions of reactive elements (RE) to the base metal have been shown to improve the oxidation performance of many high temperature materials. Studies on a variety of alloys have shown that the presence of reactive elements in the alloy affects segregation processes at both the metal/oxide and oxide/oxide interfaces. Whereas segregation to the metal/oxide interface can affect the scale adherence, segregation to the oxide/oxide interfaces in RE-containing systems has been proposed to result in changes in transport mechanisms as well as changes in the scale microstructure itself. High spatial resolution analytical electron microscopy techniques have been used to provide information on the microstructure and microchemistry of the scale and the metal/oxide and oxide/oxide interfaces. In general, in systems which exhibit improved oxidation performance, a consistent set of interfacial segregation phenomena and microstructural features were observed. Examples will be shown from a variety of nickel- and iron-based alumina formers. These kinds of studies, combined with traditional scanning electron microscopy studies of oxide scales can lead to the development of a more complete link between RE doping, interfacial segregation, interfacial/scale microstructure, and oxidation performance.

Hydrogen Spillover Enhanced Hydroxyl Formation and Catalytic Activity Toward CO Oxidation at the Metal/Oxide Interface

2015 ◽  
Vol 21 (11) ◽  
pp. 4252-4256 ◽  
Author(s):  
Yuekang Jin ◽  
Guanghui Sun ◽  
Feng Xiong ◽  
Liangbing Ding ◽  
Weixin Huang
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Co Oxidation ◽  
Hydrogen Spillover ◽  
Oxide Interface ◽  
Hydroxyl Formation

Tuning the CO oxidation catalytic activity of supported metal–metal oxide heterostructures by an aqueous phase post-treatment process

2016 ◽  
Vol 4 (46) ◽  
pp. 18075-18083 ◽  
Author(s):  
Chunzheng Wu ◽  
Rosaria Brescia ◽  
Mirko Prato ◽  
Sergio Marras ◽  
Liberato Manna ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Metal Oxide ◽  
Co Oxidation ◽  
Treatment Process ◽  
Oxide Interface ◽  
Oxide Heterostructures ◽  
Metal Metal ◽  
Ligand Free ◽  
Post Treatment Process

Colloidal Au–MnO heterodimers were deposited on SiO2 and calcined at high temperature in air in order to prepare a ligand-free Au–Mn3O4/SiO2 model catalyst for CO oxidation with a well-defined Au size and Au–metal oxide interface.

CO Oxidation on Au Nanoparticles Supported on ZrO2: Role of Metal/Oxide Interface and Oxide Reducibility

ChemCatChem ◽  
2017 ◽  
Vol 9 (6) ◽  
pp. 1119-1127 ◽  
Author(s):  
Antonio Ruiz Puigdollers ◽  
Gianfranco Pacchioni
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Au Nanoparticles ◽  
Oxide Interface

scholarly journals Sword-like CuO/CeO2 composites derived from a Ce-BTC metal–organic framework with superior CO oxidation performance

RSC Advances ◽  
2018 ◽  
Vol 8 (58) ◽  
pp. 33096-33102 ◽  
Author(s):  
Yin Wang ◽  
Yiqiang Yang ◽  
Ning Liu ◽  
Yuxin Wang ◽  
Xiaodong Zhang
Keyword(s):  
Metal Oxide ◽  
Co Oxidation ◽  
Metal Organic Framework ◽  
Oxidation Performance ◽  
Metal Organic ◽  
Oxide Composites ◽  
Organic Framework

Porous shape-controllable metal oxide composites derived from a metal–organic framework have gained more and more attention due to their extensive applications.

Highly dispersed Pt species anchored onto NH2-Ce-MOFs and their derived mesoporous catalysts for CO oxidation

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 117-123
Author(s):  
Zeyi Guo ◽  
Qi You ◽  
Lianghao Song ◽  
Guoxin Sun ◽  
Guozhu Chen ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Mesoporous Catalysts ◽  
Platinum Particles ◽  
Highly Dispersed

Highly dispersed ultrafine platinum particles anchored onto mesoporous CeO2 were successfully prepared by coordinating Pt ions with –NH2 in NH2-Ce-MOFs.

Surface to bulk charge transfer at an alkali metal/metal oxide interface

2003 ◽  
Vol 547 (1-2) ◽  
pp. L859-L864 ◽  
Author(s):  
R Lindsay ◽  
E Michelangeli ◽  
B.G Daniels ◽  
M Polcik ◽  
A Verdini ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Metal Oxide ◽  
Oxide Interface ◽  
Metal Metal ◽  
Bulk Charge

High temperature behavior of the metal/oxide interface of ferritic stainless steels

2012 ◽  
Vol 59 ◽  
pp. 148-156 ◽  
Author(s):  
Jérôme Issartel ◽  
Sébastien Martoia ◽  
Frédéric Charlot ◽  
Valérie Parry ◽  
Guillaume Parry ◽  
...  
Keyword(s):  
High Temperature ◽  
Metal Oxide ◽  
Stainless Steels ◽  
Temperature Behavior ◽  
Oxide Interface ◽  
Ferritic Stainless Steels ◽  
High Temperature Behavior
Sign in / Sign up

Export Citation Format

Share Document