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Article
Induced activation of the commercial Cu/ZnO/Al2O3 catalyst for the steam reforming of methanol
The surface structure of heterogeneous catalysts is closely associated with their catalytic performance. Current efforts for structural modification mainly focus on improving the catalyst synthesis details. He...
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Article
Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis
Platinum-based nanocatalysts play a crucial role in various electrocatalytic systems that are important for renewable, clean energy conversion, storage and utilization. However, the scarcity and high cost of P...
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Article
Tuning the Core–Shell Structure of Au144@Fe2O3 for Optimal Catalytic Activity for CO Oxidation
Core–shell heterostructures have been utilized as a catalyst that is thermally stable and exhibits a synergistic effect between core and shell, resulting in increased catalytic activity. Here we report on the ...
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Article
High-Surface Area Ceria-Zirconia Films Prepared by Atomic Layer Deposition
Ceria-zirconia, solid solutions were prepared as thin, dense films on a 130-m2/g γ-Al2O3 by Atomic Layer Deposition (ALD) for use as catalyst supports. Ce0.5Zr0.5O2 solid solutions were grown by alternating betwe...
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Article
Catalytic CO Oxidation Over Gold Nanoparticles: Support Modification by Monolayer- and Submonolayer-Dispersed Sb2O3
A new kind of heterostructured mesoporous materials for supporting gold nanoparticles was developed by surface modification of mesoporous cellulous foam silica (MCF) with antimony trioxide (Sb2O3) in a monolayer/...
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Article
Deposition–Precipitation and Stabilization of a Silica-Supported Au Catalyst by Surface Modification with Carbon Nitride
A silica support is modified by carbon nitride in order to allow for the deposition–precipitation of Au, which is normally unfavorable. The resulting catalyst is highly stable even after the removal of the car...
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Article
Structure Activity Relationships of Silica Supported AuCu and AuCuPd Alloy Catalysts for the Oxidation of CO
Supported AuCu and AuCuPd catalysts were synthesized through the diffusion of Pd and Cu into Au nanoparticle seeds. When supported on SiO2, the AuCuPd nanoparticles were found to be the most active for the oxidat...
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Article
Influence of Preparation Methods on the Performance of Metal Phosphate-Supported Gold Catalysts in CO Oxidation
The influence of different preparation methods on the performance of metal phosphate-supported gold catalysts in CO oxidation was surveyed. A series of metal phosphate-supported gold catalysts (Au/M–P–O, M = A...
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Article
Activation of Dodecanethiol-Capped Gold Catalysts for CO Oxidation by Treatment with KMnO4 or K2MnO4
Dodecanethiol-protected gold nanoparticles were deposited onto fumed SiO2 (Cab-O-Sil) via colloidal deposition. The catalyst was treated with a strongly oxidative KMnO4 or K2MnO4 solution. Low-temperature convers...
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Article
Performance of Au/M x Oy/TiO2 Catalysts in Water-Gas Shift Reaction
Our group recently developed a series of Au/M x O y /TiO2 catalysts for CO oxidation, and demonstrated that some of these catalysts are still ac...
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Article
Ordered Crystalline Mesoporous Oxides as Catalysts for CO Oxidation
Crystalline mesoporous metal oxides have attracted considerable attention recently, but their catalytic applications have rarely been studied. In this work, a series of crystalline three-dimensional mesoporous...
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Article
Metal Phosphates as a New Class of Supports for Gold Nanocatalysts
Oxides and carbon are commonly used as supports for gold nanoparticles, but metal salts are barely considered as suitable supports. Our group recently communicated that gold nanoparticles supported on nanosize...
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Article
Novel Au/TiO2/Al2O3 · xH2O catalysts for CO oxidation
Au/Al2O3 · xH2O and Au/TiO2/Al2O3 · xH2O (x = 0–3) catalysts were prepared by assembling gold nanoparticles on neat and TiO2-modified Al2O3, AlOOH, and Al(OH)3 supports, and their catalytic activity in CO oxidati...
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Article
Rational design of gold catalysts with enhanced thermal stability: post modification of Au/TiO2 by amorphous SiO2 decoration
Au/TiO2 is highly active for CO oxidation, but it often suffers from sintering in high-temperature environments. In this work, we report on a novel design of gold catalysts, in which pre-formed Au/TiO2 catalysts ...
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Article
Nanoengineering catalyst supports via layer-by-layer surface functionalization
Recent progress in the layer-by-layer surface modification of oxides for the preparation of highly active and stable gold nanocatalysts is briefly reviewed. Through a layer-by-layer surface modification approa...
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Article
Comparison of Au Catalysts Supported on Mesoporous Titania and Silica: Investigation of Au Particle Size Effects and Metal-Support Interactions
Au catalysts supported on mesoporous silica and titania supports were synthesized and tested for the oxidation of CO. Two approaches were used to prepare the silica-supported catalysts utilizing complexing tri...