4.7 Article

CeO2-promoted BaO-MnOx catalyst for lean methane catalytic combustion at low temperatures: Improved catalytic efficiency and light-off temperature

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

Morphology Dependent Catalytic Activity of Mn3O4for Complete Oxidation of Toluene and Carbon Monoxide

Jayasree K. Pulleri et al.

Summary: Manganese oxide catalysts with pure hausmanite phase were synthesized using three different methods, showing that the reduction method resulted in the best catalytic activity due to its unique morphology. The catalyst demonstrated superior oxidation activity for both carbon monoxide and toluene, with good stability at high space velocities.

CATALYSIS LETTERS (2021)

Article Engineering, Chemical

Enhanced low-temperature activity of CO2 methanation over ceria-promoted Ni-Al2O3 nanocatalyst

Reihaneh Daroughegi et al.

Summary: This article discusses the influence of four promoters (Zr, Ce, La, and Mo) on the structural properties and low temperature activity of Ni-Al2O3 catalyst in CO2 methanation reaction, with ceria having a positive effect on the catalytic performance. The addition of ceria favors the dispersion of NiO species, reduces Ni particle size, and increases metal-support interaction, leading to superior catalytic activity and stability. The 25wt.%Ni-5wt.%CeO2-Al2O3 catalyst achieved a maximum CO2 conversion of 76.4% and CH4 selectivity of 99.1% at 350 degrees C.

CHEMICAL ENGINEERING SCIENCE (2021)

Article Chemistry, Physical

Barium promoted manganese oxide catalysts in low-temperature methane catalytic combustion

Ehsan Akbari et al.

Summary: The 10 wt% BaO-MnOx catalyst synthesized in this study showed excellent catalytic performance in lean methane catalytic combustion at low temperatures and exhibited high catalytic stability under dry feed conditions. The presence of barium oxide played a crucial role in supplying oxygen during the MCC process, leading to higher catalytic activity.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Characteristics of methane wet reforming driven by microwave plasma in liquid phase for hydrogen production

Qiuying Wang et al.

Summary: This paper demonstrates the use of liquid-phase microwave discharge plasma for methane reforming to produce hydrogen, achieving a methane conversion rate of 94.3% and a hydrogen concentration of 74.0%. By optimizing the electrode structure, higher hydrogen yield and energy efficiency were obtained, with the highest energy efficiency of hydrogen production reaching approximately 0.92 mmol/kJ.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Generation of abundant defects in Mn-Co mixed oxides by a facile agar-gel method for highly efficient catalysis of total toluene oxidation

Peifen Wang et al.

Summary: The facile agar-gel method was successfully applied to prepare homogenous Mn-Co mixed oxides with different Mn/Co molar ratios for total toluene oxidation catalysis. The obtained Mn2Co1 mixed oxide displayed high catalytic activity, durability, and tolerability in water vapor environment. Characterizations and measurements indicated the optimum Mn-Co mixed oxide had high surface area, various species, strong oxygen adsorption, good reducibility, and excellent O2 adsorption ability, making it suitable for VOCs oxidation design.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Effects of binary Co-Mn oxides promoters on low-temperature catalytic performance of Pd/Al2O3 for methane combustion

Yalan Xu et al.

Summary: By employing Co-Mn binary oxides as promoters, a methane combustion catalyst with superior low-temperature activity and durability was fabricated. The suitable amount of manganese facilitated the generation of oxygen vacancies, leading to enhanced surface-concentrations of active Pd2+ and Oads species, thus improving the catalyst's activity and stability.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Engineering, Chemical

Catalytic Methane Combustion on the Hydrothermally Synthesized MnO2 Nanowire Catalysts

Ehsan Akbari et al.

Summary: Different morphologies of MnOx nanocrystalline catalysts prepared using hydrothermal and solution methods showed varying performance in catalytic combustion of methane, with the wire-like MnO2 catalyst exhibiting excellent efficiency. Various synthesis factors significantly influenced the structure and activity of the catalysts, with a specific sample showing the highest efficiency under certain conditions. The stability of the optimal MnO2 sample decreased slightly in the presence of CO2 and water vapor, but displayed high stability under dry feed conditions at higher temperatures for an extended period.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

Article Chemistry, Physical

Catalytic combustion of methane conducted on La-B-O-C (B=Co, Mn, Fe) composites: The effects of B-sites cation properties

Peiqi Chu et al.

Summary: The novel La-B-O-C composites were fabricated as catalysts for methane catalytic combustion at low temperature. Three metal ions (Co, Mn, Fe) were selected for experiment based on the effect of the newly formed C-O bond on B-site ions as active sites. The study showed that different metal ions had varying effects on the physicochemical properties and catalytic performance of the composites, with LC-C and LF-C showing superior performance compared to unmodified catalysts, while LM-C showed a slight decrease in performance. Sacrifice of Mn4+ in LM-C was found to weaken the catalytic activity. Mechanistic differences for different B-site elements in the La-B-O-C were also observed.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Multidisciplinary

Elucidation of the Active Phase in Pd-Based Catalysts Supporting on Octahedral CeO2 for Low-Temperature Methane Oxidation

Mingwei Wu et al.

Summary: Pd catalysts supported on CeO2 show high activity for lean methane combustion, with the catalytic behavior being influenced by the proportion of metallic Pd and PdO species. Increasing the Pd-0/PdO ratio can enhance catalytic performance, and an approximately equal ratio of interfacial hybrid Pd-0/PdO phase exhibits optimal catalytic activity. In situ DRIFTS results indicate that the hybrid Pd-0/PdO phase acts as the active site pair for lean methane oxidation.

CHEMISTRYSELECT (2021)

Article Engineering, Environmental

Superior catalytic activity of Pd-based catalysts upon tuning the structure of the ceria-zirconia support for methane combustion

Yuanqing Ding et al.

Summary: The structure of CeO2-ZrO2 mixed oxides support significantly affects the catalytic activity of Pd/CZ catalysts in methane combustion, with CZ oxides featuring a two-phase composite structure exhibiting higher oxygen storage capacity and mobility, positively impacting the performance of Pd/CZ catalysts.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Catalytic performance of copper oxide supported α-MnO2 nanowires for the CO preferential oxidation in H2-rich stream

Raziyeh Jokar et al.

Summary: The study found that the 10wt% CuO/MnO2 catalyst exhibited the best catalytic performance in CO preferential oxidation reaction, attributed to the synergistic interaction between copper and manganese. However, adding CO2 and/or H2O to the feedstock decreased the catalyst performance.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Energy & Fuels

Effect of mesoporous nanocrystalline supports on the performance of the Ni-Cu catalysts in the high-temperature water-gas shift reaction

Naeemeh Sadat Maboudi et al.

Summary: In this study, Ni-Cu based catalysts supported on different nanocrystalline powders were prepared and investigated for high-temperature water gas shift (HTWGS) reaction. The effects of Ni and Cu loadings, calcination and reduction temperatures, GHSV, and steam/gas molar ratio on the catalytic performance were studied. The results showed that 7 wt%Ni-7.5 wt%Cu/CeO2-Al2O3 catalyst exhibited higher CO conversion and stability.

JOURNAL OF THE ENERGY INSTITUTE (2021)

Article Engineering, Chemical

Catalytic Combustion of Low-Concentration Methane over Mx-Cu/γ-Al2O3 (M = Mn/Ce) Catalysts

Jiandong Kang et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2020)

Article Engineering, Environmental

Catalytic performance of Pd catalyst supported on Zr:Ce modified mesoporous silica for methane oxidation

Hassnain Abbas Khan et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Chemistry, Physical

Study of the use of a Pd-Pt-based catalyst for the catalytic combustion of storage tank VOCs

Yu Yang et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2020)

Article Engineering, Chemical

Supported Mn catalysts and the role of different supports in the catalytic oxidation of carbon monoxide

Sajad Mobini et al.

CHEMICAL ENGINEERING SCIENCE (2019)

Article Chemistry, Physical

Tuning nonstoichiometric defects in single-phase MnOx for methane complete oxidation

Jingbo Jia et al.

MOLECULAR CATALYSIS (2019)

Article Chemistry, Physical

Methane catalytic combustion over CeO2-ZrO2-Sc2O3 mixed oxides

Lucia M. Toscani et al.

APPLIED CATALYSIS A-GENERAL (2019)

Article Chemistry, Physical

Anti-sintering Pd@silicalite-1 for methane combustion: Effects of the moisture and SO2

Zeshu Zhang et al.

APPLIED SURFACE SCIENCE (2019)

Article Engineering, Environmental

Carbon sphere-assisted solution combustion synthesis of porous/hollow structured CeO2-MnOx catalysts

Guozhu Chen et al.

CHEMICAL ENGINEERING JOURNAL (2018)

Article Chemistry, Physical

Effect of Pd/Pt ratio on the reactivity of methane catalytic combustion in bimetallic Pd-Pt catalyst

Haojie Geng et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Chemistry, Physical

Complete combustion of methane over Co3O4 catalysts: Influence of pH values

Yifan Zheng et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

Article Green & Sustainable Science & Technology

Effects of preparation conditions on the performance of simultaneous desulfurization and denitrification over SiO2-MnOx composites

Honghong Yi et al.

JOURNAL OF CLEANER PRODUCTION (2018)

Article Environmental Sciences

CO2 methanation on the catalyst of Ni/MCM-41 promoted with CeO2

Xiaoliu Wang et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2018)

Article Chemistry, Physical

In-situ reduction-derived Pd/3DOM La0.6Sr0.4MnO3: Good catalytic stability in methane combustion

Xingtian Zhao et al.

APPLIED CATALYSIS A-GENERAL (2018)

Article Nanoscience & Nanotechnology

Mesoporous Silica-Supported Nanostructured PdO/CeO2 Catalysts for Low-Temperature Methane Oxidation

Yiling Dai et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

Article Chemistry, Physical

Effects of O2/CH4 ratio on methane catalytic combustion over Cu/γ-Al2O3 particles

Haojie Geng et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2016)

Article Engineering, Chemical

HEAT- AND MASS-TRANSFER INDUCED HYSTERESIS EFFECTS DURING CATALYST LIGHT-OFF TESTING

Ioannis Koutoufaris et al.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2014)

Article Green & Sustainable Science & Technology

Low-temperature water-gas shift reaction over supported Cu catalysts

Dae-Woon Jeong et al.

RENEWABLE ENERGY (2014)

Article Chemistry, Physical

Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature

Yagang Zhang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2013)

Article Environmental Sciences

Effects of Ce on catalytic combustion of methane over Pd-Pt/Al2O3 catalyst

Xing Fan et al.

JOURNAL OF ENVIRONMENTAL SCIENCES (2012)

Article Chemistry, Multidisciplinary

A synthesis of high-efficiency Pd-Cu-Cl-x/Al2O3 catalyst for low temperature CO oxidation

Yuexin Shen et al.

CHEMICAL COMMUNICATIONS (2010)

Article Engineering, Chemical

Facile synthesis of nanocrystalline magnesium oxide with high surface area

Fereshteh Meshkani et al.

POWDER TECHNOLOGY (2009)

Article Chemistry, Applied

Catalytic performance for methane combustion of supported Mn-Ce mixed oxides

Shi Limin et al.

JOURNAL OF RARE EARTHS (2008)

Article Chemistry, Physical

Combustion of volatile organic compounds on manganese iron or nickel mixed oxide catalysts

Maria Roxana Morales et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2007)

Article Chemistry, Physical

Catalytic combustion of methane over microemulsion-derived MnOx-CS2O-Al2O3 nanocomposites

ZX You et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2004)

Article Engineering, Biomedical

Mechanochemical synthesis of nanocrystalline hydroxyapatite from CaO and CaHPO4

KCB Yeong et al.

BIOMATERIALS (2001)