☆ 4.6 Article

Kinetics-Based Prediction for Sintering of Pd/CeO2-ZrO2-Al2O3 Three-Way Catalysts during Engine-Bench Aging

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Chemistry, Physical

Thermal Aging of Rh/ZrO2-CeO2 Three-Way Catalysts under Dynamic Lean/Rich Perturbation Accelerates Deactivation via an Encapsulation Mechanism

Masato Machida et al.

Summary: Under dynamic SLR cycle conditions, the Rh/ZrO2-CeO2 (Rh/ZC) three-way catalyst experienced more severe deactivation compared to static conditions. The complete encapsulation of Rh particles with a ZC overlayer under dynamic SLR cycle conditions led to physical blockage and suppressed catalytic activity. This encapsulation phenomenon was not recovered by post-treatment in air at 1000 degrees C.

ACS CATALYSIS (2023)

添加到收藏夹

Article Nanoscience & Nanotechnology

Rh Nanoparticles Dispersed on ZrO2-CeO2 Migrate to Al2O3 Supports to Mitigate Thermal Deactivation via Encapsulation

Masato Machida et al.

Summary: This study investigates the performance of catalysts after real engine aging and finds that pre-aged catalysts can maintain better catalytic performance at high temperatures. It is found that the migration of Rh nanoparticles from the ZC surface to the Al2O3 binder interface plays a crucial role in mitigating the encapsulation of Rh nanoparticles by ZC. By using a dual-oxide support formulation, the deterioration extent of the catalyst and the oxygen storage capacity performance can be effectively improved.

ACS APPLIED NANO MATERIALS (2023)

添加到收藏夹

Article Chemistry, Applied

In-Situ diffuse reflectance spectroscopy analysis of Pd/CeO2-ZrO2 model three-way catalysts under Lean-Rich cycling condition

Ayumi Fujiwara et al.

Summary: This study investigated the redox behavior of Pd/CeO2-ZrO2 (Pd/CZ) model three-way catalysts through in situ diffuse reflectance spectroscopy, revealing a strong correlation between Pd oxidation rate and the presence of three-phase boundaries (TPB). The study found that TPB abundance plays a significant role in retarding Pd oxidation, with smaller particle sizes leading to more pronounced effects. The ratio of rate constants provides a useful index for estimating the deactivation of the catalyst due to thermal sintering.

CATALYSIS TODAY (2021)

添加到收藏夹

Article Engineering, Chemical

Modeling on a Three-Way Catalyst Used in Series Hybrid Electric Vehicles Focusing on Its Catalytic Behavior at Cold Start

Toshinori Okajima et al.

Summary: This study focused on simulating the purification performance of exhaust gas from series hybrid electric vehicles (SHEVs) and investigated the redox behavior of Rh to improve the estimation accuracy during the cold-start phase through introducing a rate equation for the activation process.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

添加到收藏夹

Article Chemistry, Physical

Change in the Pd Oxidation State during Light-Off of Three-Way Catalysis Analyzed by in situ Diffuse Reflectance Spectroscopy

Ayumi Fujiwara et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2020)

添加到收藏夹

Article Chemistry, Multidisciplinary

Thermal Deactivation of Pd/CeO2-ZrO2 Three-Way Catalysts during Real Engine Aging: Analysis by a Surface plus Peripheral Site Model

Ayumi Fujiwara et al.

ACS OMEGA (2020)

添加到收藏夹

Article Chemistry, Physical

Deactivation Mechanism of Pd/CeO2-ZrO2 Three-Way Catalysts Analyzed by Chassis-Dynamometer Tests and in Situ Diffuse Reflectance Spectroscopy

Masato Machida et al.

ACS CATALYSIS (2019)

添加到收藏夹

Article Chemistry, Applied

An experimental and kinetic modeling study of aging impact on surface and subsurface oxygen storage in three-way catalysts

Jian Gong et al.

CATALYSIS TODAY (2019)

添加到收藏夹

Article Chemistry, Physical

Redox Dynamics of Pd Supported on CeO2-ZrO2 during Oxygen Storage/Release Cycles Analyzed by Time-Resolved in Situ Reflectance Spectroscopy

Hiroshi Yoshida et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2018)

添加到收藏夹

Article Engineering, Chemical

Catalyst Sintering Kinetics Data: Is There a Minimal Chemical Mechanism Underlying Kinetics Previously Fit by Empirical Power-Law Expressions - and if So, What Are Its Implications?

Eric E. Finney et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2017)

添加到收藏夹

Article Chemistry, Physical

Pd model catalysts: Effect of aging environment and lean redispersion

Jason A. Lupescu et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2016)

添加到收藏夹

Article Chemistry, Physical

How Pt Interacts with CeO2 under the Reducing and Oxidizing Environments at Elevated Temperature: The Origin of Improved Thermal Stability of Pt/CeO2 Compared to CeO2

Jaeha Lee et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2016)

添加到收藏夹

Article Chemistry, Applied

Chemisorption-XRD particle size discrepancy of carbon supported palladium: Carbon decoration of Pd?

John Meynard M. Tengco et al.

CATALYSIS TODAY (2015)

添加到收藏夹

Article Chemistry, Physical

Agglomerative Sintering of an Atomically Dispersed Ir1/Zeolite Y Catalyst: Compelling Evidence Against Ostwald Ripening but for Bimolecular and Autocatalytic Agglomeration Catalyst Sintering Steps

Ercan Bayram et al.

ACS CATALYSIS (2015)

添加到收藏夹

Article Engineering, Chemical

MODELLING OF LOCAL AGING EFFECTS OF COMMERCIAL THREE-WAY CATALYSTS: SPATIAL TEMPERATURE AND CO CONVERSION PROFILES

Christian Hauck et al.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2014)

添加到收藏夹

Article Engineering, Chemical

Modeling and analysis of rapid catalyst aging cycles

Karthik Ramanathan et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2014)

添加到收藏夹

Article Chemistry, Multidisciplinary

A Four-Step Mechanism for the Formation of Supported-Nanoparticle Heterogenous Catalysts in Contact with Solution: The Conversion of Ir(1,5-COD)Cl/γ-Al2O3 to Ir(0)∼170/γ-Al2O3

Patrick D. Kent et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

添加到收藏夹

Review Chemistry, Multidisciplinary

Sintering of Catalytic Nanoparticles: Particle Migration or Ostwald Ripening?

Thomas W. Hansen et al.

ACCOUNTS OF CHEMICAL RESEARCH (2013)

添加到收藏夹

Article Chemistry, Physical

Influence of the Ce-Zr promoter on Pd behaviour under dynamic CO/NO cycling conditions: a structural and chemical approach

Anna Kubacka et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2013)

添加到收藏夹

Article Chemistry, Physical

Gold Nanocluster Agglomeration Kinetic Studies: Evidence for Parallel Bimolecular Plus Autocatalytic Agglomeration Pathways as a Mechanism-Based Alternative to an Avrami-Based Analysis

Eric. E. Finney et al.

CHEMISTRY OF MATERIALS (2012)

添加到收藏夹

Article Engineering, Chemical

Activity Function for Describing Alteration of Three-Way Catalyst Performance over Palladium-Only Three-Way Catalysts by Catalyst Mileage

Sung Bong Kang et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2011)

添加到收藏夹

Article Engineering, Chemical

Kinetic Parameters Estimation for Three Way Catalyst Modeling

Karthik Ramanathan et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2011)

添加到收藏夹

Article Chemistry, Physical

The alteration of the performance of field-aged Pd-based TWCs towards CO and C3H6 oxidation

Iljeong Heo et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2009)

添加到收藏夹

Article Chemistry, Physical

Determination of dispersion of precious metals on CeO2-containing supports

T Takeguchi et al.

APPLIED CATALYSIS A-GENERAL (2005)

添加到收藏夹

Article Chemistry, Multidisciplinary

On the critical radius in ostwald ripening

R Finsy

LANGMUIR (2004)

添加到收藏夹

Article Chemistry, Physical

Metal-promoter interface in Pd/(Ce,Zr)O-x/Al2O3 catalysts: effect of thermal aging

A Iglesias-Juez et al.

JOURNAL OF CATALYSIS (2004)

添加到收藏夹

Article Engineering, Chemical

Oxygen storage modeling in three-way catalytic converters

DN Tsinoglou et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2002)

添加到收藏夹

Article Chemistry, Physical

Effect of thermal sintering on light-off performance of Pd/(Ce,Zr)Ox/Al2O3 three-way catalysts:: Model gas and engine tests

A Martínez-Arias et al.

JOURNAL OF CATALYSIS (2001)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.