4.6 Article

Methane Oxidation over PdO: Towards a Better Understanding of the Influence of the Support Material

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 Engineering, Chemical

Pd and Pd-Pt catalysts supported on SnO2 and c-Al2O3: Kinetic studies of wet lean methane combustion

Roshni Sajiv Kumar et al.

Summary: This study investigated the kinetic behavior of methane combustion on hydrothermally aged SnO2 and Al2O3 supported 1 wt% Pd and 1 wt% Pd-Pt(1:1) catalysts in the presence of 5 and 10 vol% H2O. Different reaction kinetics and activation energies were observed for the catalysts depending on the support material and Pt addition. The Pd-Pt/SnO2 catalyst demonstrated the highest turnover frequency and the least deactivation during hydrothermal aging.

CHEMICAL ENGINEERING SCIENCE (2023)

Review Chemistry, Physical

Methane Oxidation over the Zeolites-Based Catalysts

Linke Wu et al.

Summary: Zeolites possess ordered pore structures, good spatial constraints, and superior hydrothermal stability. The integration of zeolites and active metal components enables the catalysts to have adjustable acid-base property and good redox performance, making them suitable for methane activation and conversion. This review article discusses the effect of zeolite materials on C-H bond activation in methane and the mechanisms of complete and selective methane oxidation, as well as the prospects and challenges of zeolite-based catalysts in future research and practical applications.

CATALYSTS (2023)

Article Chemistry, Physical

Complementary operando insights into the activation of multicomponent selective propylene oxidation catalysts

Matthias Stehle et al.

Summary: In this study, two Bi-Mo-Co-Fe-O catalysts were synthesized and tested for their catalytic performance in selective oxidation of propylene to acrolein. The structural changes during oxidation and reaction processes were observed using various operando techniques. The formation of different oxide phases and the interaction between MoO3 and other oxides were found to be crucial for high performance. The combination of complementary operando methods bridged the knowledge gap between simplified model systems and complex catalysts.

JOURNAL OF CATALYSIS (2022)

Review Chemistry, Physical

Zeolite supported Pd catalysts for the complete oxidation of methane: A critical review

Hai-Ying Chen et al.

Summary: This review summarizes recent literature reports on the development of zeolite supported Pd catalysts for the complete oxidation of methane. It reveals that the framework structures of zeolite have little influence on the methane oxidation activity or the stability of the supported catalysts. The Si/Al ratio of the zeolite support plays a critical role in determining the catalytic activity and stability. Catalysts supported on siliceous zeolites consistently show excellent activity and stability, with silanol nest defect sites proposed as anchoring sites for Pd nanoparticles. Challenges in overcoming sulfur poisoning are discussed.

APPLIED CATALYSIS A-GENERAL (2022)

Review Chemistry, Physical

Recent Advances in Complete Methane Oxidation using Zeolite-Supported Metal Nanoparticle Catalysts

Rasmus Lykke Mortensen et al.

Summary: The high fuel efficiency of natural gas makes it an attractive alternative during the transition to renewable energy. However, natural gas engines emit methane (CH4) under certain conditions, which has a high environmental cost. This review discusses the potential of zeolite-based catalysts for controlling methane emissions from large engines, highlighting factors such as zeolite topology and testing under realistic conditions.

CHEMCATCHEM (2022)

Article Chemistry, Physical

Experimental and numerical investigation of NO oxidation on Pt/Al2O3- and NOx storage on Pt/BaO/Al2O3-catalysts

Sui Wan et al.

Summary: Planar laser-induced fluorescence with laser synchronized flow control is used to investigate the dynamics and mass transfer of a NOx storage catalyst. The experiment results are compared with numerical simulations to understand the thermodynamic equilibrium and storage rate of NO oxidation under different conditions.

CATALYSIS SCIENCE & TECHNOLOGY (2022)

Article Chemistry, Applied

Structure and performance of zeolite supported Pd for complete methane oxidation

Ida Friberg et al.

Summary: The study revealed that catalysts with high CH4 oxidation activity tend to rapidly transition between metallic and oxidized states, while the formation of ion-exchanged Pd2+ and large Pd particles has a detrimental effect on catalytic activity. Therefore, it is important to carefully select zeolite support materials to minimize the formation of ion-exchanged Pd2+ and large Pd particles.

CATALYSIS TODAY (2021)

Article Engineering, Chemical

Selective Catalytic Reduction of NOx with H2 for Cleaning Exhausts of Hydrogen Engines: Impact of H2O, O2, and NO/H2 Ratio

Michael Borchers et al.

Summary: The study found that a catalyst can maintain high NOx conversion rate and selectivity even in the presence of water, and showed good activity and stability in long-term experiments. Additionally, it was found that there is competition between overall reaction and hydrogen combustion reaction.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

Article Chemistry, Physical

Effects of Hydrothermal Aging on CO and NO Oxidation Activity over Monometallic and Bimetallic Pt-Pd Catalysts

Jochen Schuetz et al.

Summary: The study reveals that aging catalysts leads to a decline in catalytic activity due to particle sintering, and bimetallic catalysts undergo morphological changes during hydrothermal treatment, transforming from core-shell structures to heterogeneous agglomerates.

CATALYSTS (2021)

Article Chemistry, Physical

Engineering catalyst supports to stabilize PdOx two-dimensional rafts for water-tolerant methane oxidation

Haifeng Xiong et al.

Summary: This study presents a catalyst synthesis approach based on anchoring metal single atoms on a support surface, resulting in improved reaction rates and water tolerance during methane oxidation. The results demonstrate that trapping single atoms could be an important tool for controlling the nucleation and growth of metal clusters in heterogeneous catalysts.

NATURE CATALYSIS (2021)

Article Chemistry, Physical

Elucidation of Active Sites for CH4 Catalytic Oxidation over Pd/CeO2 Via Tailoring Metal-Support Interactions

Shiyuan Chen et al.

Summary: The structure of PdOx nanoparticles loaded on CeO2 nanocrystals of different shapes was systematically studied using Cs-corrected HRTEM/STEM, XPS, and Raman spectroscopy. The active sites for methane catalytic oxidation were found to be morphology-dependent on the CeO2 supports, with Pd2+ species identified as the active centers. Additionally, the chemical states of Pd can be tuned through interactions with CeO2 in oxidizing/reducing atmospheres.

ACS CATALYSIS (2021)

Article Chemistry, Physical

Promoting the Methane Oxidation on Pd/CeO2 Catalyst by Increasing the Surface Oxygen Mobility via Defect Engineering

Jaeha Lee et al.

Summary: This study found that enhancing the oxygen mobility of ceria surface through simple defect engineering can improve the methane oxidation activity of conventional Pd/CeO2 catalyst. Reduction in defect concentration of ceria surface results in more mobile surface oxygen, leading to easier reduction at lower temperatures. The catalytic activity can be enhanced by promoting the active participation of the surface oxygen of support.

CHEMCATCHEM (2021)

Article Multidisciplinary Sciences

Steam-created grain boundaries for methane C-H activation in palladium catalysts

Weixin Huang et al.

Summary: The study showed that high-temperature steam pretreatment can enhance the mass-specific reaction rate for carbon-hydrogen (C-H) activation in methane oxidation on palladium catalysts. Experimental and theoretical methods demonstrated that crystal twinning increased grain boundary density, leading to higher reactivity.

SCIENCE (2021)

Article Engineering, Chemical

Effect of Support on CO Oxidation Performance over the Pd/CeO2 and Pd/CeO2 Zro2 Catalyst

Hang Li et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2020)

Article Chemistry, Physical

Role of Water on the Structure of Palladium for Complete Oxidation of Methane

Xiansheng Li et al.

ACS CATALYSIS (2020)

Article Chemistry, Physical

Surface reaction kinetics of methane oxidation over PdO

H. Stotz et al.

JOURNAL OF CATALYSIS (2019)

Article Engineering, Chemical

The Effect of Prereduction on the Performance of Pd/Al2O3 and Pd/CeO2 Catalysts during Methane Oxidation

Patrick Lott et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2019)

Article Chemistry, Physical

Water Inhibition in Methane Oxidation over Alumina Supported Palladium Catalysts

Peter Velin et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2019)

Article Multidisciplinary Sciences

Stable complete methane oxidation over palladium based zeolite catalysts

Andrey W. Petrov et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Applied

Catalytic combustion of methane over Pd/SnO2 catalysts

Zhenyang Zhao et al.

CHINESE JOURNAL OF CATALYSIS (2017)

Article Chemistry, Physical

The influence of gas composition on Pd-based catalyst activity in methane oxidation - inhibition and promotion by NO

Nadezda Sadokhina et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Engineering, Chemical

Kinetic Analysis of the Inhibition of CH4 Oxidation by H2O on PdO/Al2O3 and CeO2/PdO/Al2O3 Catalysts

Mina Alyani et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2016)

Article Chemistry, Physical

Aging, re-dispersion, and catalytic oxidation characteristics of model Pd/Al2O3 automotive three-way catalysts

Xiaoyin Chen et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2015)

Article Chemistry, Physical

Hydrothermal stability of Pd/ZrO2 catalysts for high temperature methane combustion

Jung-Hyun Park et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2014)

Article Chemistry, Physical

Pd@SnO2 and SnO2@Pd Core@Shell Nanocomposite Sensors

Fabian Gyger et al.

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION (2014)

Review Chemistry, Multidisciplinary

Sintering of Catalytic Nanoparticles: Particle Migration or Ostwald Ripening?

Thomas W. Hansen et al.

ACCOUNTS OF CHEMICAL RESEARCH (2013)

Article Chemistry, Physical

Microstructure of Bimetallic PtPd Catalysts under Oxidizing Conditions

Tyne R. Johns et al.

CHEMCATCHEM (2013)

Review Engineering, Chemical

Exhaust Gas Aftertreatment in Mobile Systems: Status, Challenges, and Perspectives

Olaf Deutschmann et al.

CHEMIE INGENIEUR TECHNIK (2013)

Article Chemistry, Multidisciplinary

Consequences of Metal-Oxide Interconversion for C-H Bond Activation during CH4 Reactions on Pd Catalysts

Ya-Huei (Cathy) Chin et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

Article Chemistry, Applied

Particle Size Effect on CH4 Oxidation Over Noble Metals: Comparison of Pt and Pd Catalysts

A. Yu. Stakheev et al.

TOPICS IN CATALYSIS (2013)

Article Chemistry, Physical

Combustion of Methane over Palladium-Based Catalysts: Support Interactions

William R. Schwartz et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2012)

Article Chemistry, Physical

Combustion of Methane over Palladium-Based Catalysts: Catalytic Deactivation and Role of the Support

William R. Schwartz et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2012)

Article Chemistry, Physical

The Active Phase of Palladium during Methane Oxidation

A. Hellman et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2012)

Article Chemistry, Physical

Characterization of Pd-CeOx interaction on α-Al2O3 support

C. E. Gigola et al.

APPLIED SURFACE SCIENCE (2007)

Article Chemistry, Physical

Stability of palladium-based catalysts during catalytic combustion of methane:: The influence of water

Katarina Persson et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2007)

Article Chemistry, Multidisciplinary

Insight into the structure of supported palladium catalysts during the total oxidation of methane

Jan-Dierk Grunwaldt et al.

CHEMICAL COMMUNICATIONS (2007)

Article Chemistry, Physical

Methane combustion over Pd/SiO2 catalysts with different degrees of hydrophobicity

P Araya et al.

APPLIED CATALYSIS A-GENERAL (2005)

Article Chemistry, Physical

Development of a kinetic model for the oxidation of methane over Pd/Al2O3 at dry and wet conditions

P Hurtado et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2004)

Article Chemistry, Multidisciplinary

The turnover rate for the catalytic combustion of methane over palladium is not sensitive to the structure of the catalyst

GH Zhu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2004)

Article Chemistry, Physical

Strong chemical interaction between PdO and SnO2 and the influence on catalytic combustion of methane

T Takeguchi et al.

APPLIED CATALYSIS A-GENERAL (2003)

Review Chemistry, Physical

Complete oxidation of methane at low temperature over noble metal based catalysts:: a review

P Gélin et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2002)

Article Chemistry, Physical

Oxygen exchange between palladium and oxide supports in combustion catalysts

D Ciuparu et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2002)

Article Chemistry, Physical

Effects of the addition of titania on the thermal characterization of alumina-supported palladium

CB Wang et al.

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL (2002)

Article Engineering, Chemical

Reversing flow catalytic converter for a natural gas/diesel dual fuel engine

B Liu et al.

CHEMICAL ENGINEERING SCIENCE (2001)

Article Chemistry, Physical

Low temperature oxidation of methane over Pd/SnO2 catalyst

K Sekizawa et al.

APPLIED CATALYSIS A-GENERAL (2000)