4.6 Article

Co3O4/TiO2 catalysts studied in situ during the preferential oxidation of carbon monoxide: the effect of different TiO2 polymorphs

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Magnesium as a Methanation Suppressor for Iron- and Cobalt-Based Oxide Catalysts during the Preferential Oxidation of Carbon Monoxide

Mohamed I. Fadlalla et al.

Summary: This study reports on the synthesis, characterization, and performance evaluation of iron- and cobalt-based oxide catalysts for CO-PrOx. The study found that the presence of magnesium had a beneficial effect on stabilizing the catalyst structures and suppressing CH4 formation.

CATALYSTS (2022)

Article Chemistry, Physical

Effect of manganese promotion on the activity and selectivity of cobalt catalysts for CO preferential oxidation

Liping Zhong et al.

Summary: For the preferential oxidation of CO in H2-rich mixtures, manganese-modified cobalt catalysts show higher activity and stability than pure cobalt catalysts, with the addition of manganese helping to improve the specific surface area of the catalyst. Manganese promotes CO conversion by stabilizing CoO phase during reaction conditions, suppresses CO methanation reaction, and promotes H2 oxidation at high temperatures.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Support and gas environment effects on the preferential oxidation of carbon monoxide over Co3O4 catalysts studied in situ

Thulani M. Nyathi et al.

Summary: The study investigated the impact of different supports on the catalytic performance and phase stability of Co3O4 nanoparticles during CO-PrOx. Results showed that weak nanoparticle-support interactions (as in Co3O4/ZrO2) favored high CO oxidation activity, while stronger interactions (as in Co3O4/Al2O3) helped minimize Co-0 and CH4 formation. The study highlights the bi-functional role supports play in CO-PrOx, enhancing catalytic performance and improving the phase stability of Co3O4.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Improving the Catalytic Performance of Cobalt for CO Preferential Oxidation by Stabilizing the Active Phase through Vanadium Promotion

Liping Zhong et al.

Summary: The addition of vanadium can stabilize the active state of cobalt, enhancing the activity and stability of the COPrOx reaction. The active sites are mainly composed of a cobalt-vanadate surface layer, with the presence of V5+ and Co2+ ions helping to inhibit carbonate species formation.

ACS CATALYSIS (2021)

Review Chemistry, Physical

Formation of metal-support compounds in cobalt-based Fischer-Tropsch synthesis: A review

Moritz Wolf et al.

Summary: This article summarizes and discusses the feasibility of water-induced deactivation of cobalt-based Fischer-Tropsch catalysts by oxidation, as well as the mechanisms of hydrothermal sintering and recent findings on water-induced oxidation of metallic cobalt to CoO. The emphasis is on the formation of metal-support compounds and the applicability of various characterization techniques. The literature provides limited information on the formation and morphology of metal-support compounds in cobalt-based Fischer-Tropsch synthesis due to challenges in characterization, but recent advanced techniques have provided significant insights.

CHEM CATALYSIS (2021)

Review Physics, Applied

In situ characterization of Fischer-Tropsch catalysts: a review

N. Fischer et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2020)

Editorial Material Chemistry, Physical

Water-induced deactivation of cobalt-based Fischer-Tropsch catalysts

Moritz Wolf et al.

NATURE CATALYSIS (2020)

Article Chemistry, Multidisciplinary

Structural Arrangement in Close-Packed Cobalt Polytypes

Wojciech A. Slawinski et al.

CRYSTAL GROWTH & DESIGN (2018)

Article Materials Science, Multidisciplinary

Surfactant-free synthesis of monodisperse cobalt oxide nanoparticles of tunable size and oxidation state developed by factorial design

Moritz Wolf et al.

MATERIALS CHEMISTRY AND PHYSICS (2018)

Article Chemistry, Physical

Operando Insights into CO Oxidation on Cobalt Oxide Catalysts by NAP-XPS, FTIR, and XRD

Liliana Lukashuk et al.

ACS CATALYSIS (2018)

Article Multidisciplinary Sciences

Activity enhancement of cobalt catalysts by tuning metal-support interactions

Carlos Hernandez Mejia et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Physical

Co3O4 morphology in the preferential oxidation of CO

Motlokoa Khasu et al.

CATALYSIS SCIENCE & TECHNOLOGY (2017)

Article Chemistry, Applied

Phase changes studied under in situ conditions-A novel cell

N. Fischer et al.

CATALYSIS TODAY (2016)

Article Chemistry, Physical

Operando XAS and NAP-XPS studies of preferential CO oxidation on Co3O4 and CeO2-Co3O4 catalysts

Liliana Lukashuk et al.

JOURNAL OF CATALYSIS (2016)

Article Multidisciplinary Sciences

Anatase TiO2 Nanoparticles with Exposed {001} Facets for Efficient Dye-Sensitized Solar Cells

Liang Chu et al.

SCIENTIFIC REPORTS (2015)

Article Materials Science, Multidisciplinary

Sand Supported Mixed-Phase TiO2 Photocatalysts for Water Decontamination Applications

Dorian A. H. Hanaor et al.

ADVANCED ENGINEERING MATERIALS (2014)

Article

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Samira Bagheri et al.

TheScientificWorldJOURNAL (2014)

Article Chemistry, Physical

Metal Support Interactions in Co3O4/Al2O3 Catalysts Prepared from w/o Microemulsions

N. Fischer et al.

CATALYSIS LETTERS (2012)

Article Chemistry, Applied

Preparation of supported nano-sized cobalt oxide and fcc cobalt crystallites

N. Fischer et al.

CATALYSIS TODAY (2011)

Article Chemistry, Multidisciplinary

Direct evidence of the SMSI decoration effect: the case of Co/TiO2 catalyst

Victor A. de la Pena O'Shea et al.

CHEMICAL COMMUNICATIONS (2011)

Review Chemistry, Multidisciplinary

Pitfalls in the characterization of nanoporous and nanosized materials

Claudia Weidenthaler

NANOSCALE (2011)

Article Chemistry, Multidisciplinary

Tetragonal faceted-nanorods of anatase TiO2 single crystals with a large percentage of active {100} facets

Jianming Li et al.

CHEMICAL COMMUNICATIONS (2010)

Review Chemistry, Physical

A review of polymeric dispersant stabilisation of titania pigment

Saeed Farrokhpay

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2009)

Review Chemistry, Physical

Interaction of nanostructured metal overlayers with oxide surfaces

Qiang Fu et al.

SURFACE SCIENCE REPORTS (2007)

Article Chemistry, Physical

Characteristics of silica-coated TiO2 and its UV absorption for sunscreen cosmetic applications

A Jaroenworaluck et al.

SURFACE AND INTERFACE ANALYSIS (2006)

Article Materials Science, Multidisciplinary

Study of cobalt dispersion on titania consisting various rutile: anatase ratios

B Jongsomjit et al.

MATERIALS CHEMISTRY AND PHYSICS (2005)

Article Materials Science, Multidisciplinary

Dependence of crystalline phases in titania on catalytic properties during CO hydrogenation of Co/TiO2 catalysts

B Jongsomjit et al.

MATERIALS CHEMISTRY AND PHYSICS (2005)

Article Chemistry, Physical

Metal-oxide interfacial reactions:: Encapsulation of Pd on TiO2 (110)

Q Fu et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2005)

Article Multidisciplinary Sciences

The impact of nanoscience on heterogeneous catalysis

AT Bell

SCIENCE (2003)

Article Chemistry, Multidisciplinary

Indexing of powder diffraction patterns by iterative use of singular value decomposition

AA Coelho

JOURNAL OF APPLIED CRYSTALLOGRAPHY (2003)

Article Chemistry, Applied

CO-free fuel processing for fuel cell applications

TV Choudhary et al.

CATALYSIS TODAY (2002)

Article Nanoscience & Nanotechnology

Allotropic phase transformations in HCP, FCC and BCC metastable structures in Co-nanoparticles

S Ram

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2001)