Fabrication of Pt/Co3O4 nanocatalysts based on pollen template for low-temperature CO oxidation

Jiang, Bo; Huang, Mingzhen; Cai, Dongren; Tan, Kok Bing; Zhan, Guowu

doi:10.1016/j.catcom.2022.106597

Cited by 12 publications

(3 citation statements)

References 32 publications

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“…Interestingly, the methane conversion rate declined with increasing temperature, whereas it rose with decreasing temperature (300~400 • C) under the auspices of the Au-Pd-3.61CoO/3DOM Co 3 O 4 catalyst. Furthermore, the researchers observed that the deactivation of 3DOM Co In conclusion, doping of noble metals can enhance the oxygen activity and stabili of Co-O bond and affect the fracture and formation of Co-O bond, thus raising the con centration of oxygen vacancies [102][103][104]. For instance, doping noble metals such as Pt an Pd can effectively introduce numerous oxygen vacancies while also boosting the Cobond content on composite catalyst material surfaces.…”

Section: Noble Metalsmentioning

confidence: 95%

“…In conclusion, doping of noble metals can enhance the oxygen activity and stability of Co–O bond and affect the fracture and formation of Co–O bond, thus raising the concentration of oxygen vacancies [ 102 , 103 , 104 ]. For instance, doping noble metals such as Pt and Pd can effectively introduce numerous oxygen vacancies while also boosting the Co–O bond content on composite catalyst material surfaces.…”

Section: Co 3 O 4 Composite Cat...mentioning

confidence: 99%

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Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

et al. 2023

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In recent years, it has been found that adjusting the organizational structure of Co3O4 through solid solution and other methods can effectively improve its catalytic performance for the oxidation of low concentration methane. Its catalytic activity is close to that of metal Pd, which is expected to replace costly noble metal catalysts. Therefore, the in-depth research on the mechanism and methods of Co3O4 microstructure regulation has very important academic value and economic benefits. In this paper, we reviewed the catalytic oxidation mechanism, microstructure regulation mechanism, and methods of nano-Co3O4 on methane gas, which provides reference for the development of high-activity Co3O4-based methane combustion catalysts. Through literature investigation, it is found that the surface energy state of nano-Co3O4 can be adjusted by loading of noble metals, resulting in the reduction of Co–O bond strength, thus accelerating the formation of reactive oxygen species chemical bonds, and improving its catalytic effect. Secondly, the use of metal oxides and non-metallic oxide carriers helps to disperse and stabilize cobalt ions, improve the structural elasticity of Co3O4, and ultimately improve its catalytic performance. In addition, the performance of the catalyst can be improved by adjusting the microstructure of the composite catalyst and optimizing the preparation process. In this review, we summarize the catalytic mechanism and microstructure regulation of nano-Co3O4 and its composite catalysts (embedded with noble metals or combined with metallic and nonmetallic oxides) for methane combustion. Notably, this review delves into the substance of measures that can be used to improve the catalytic performance of Co3O4, highlighting the constructive role of components in composite catalysts that can improve the catalytic capacity of Co3O4. Firstly, the research status of Co3O4 composite catalyst is reviewed in this paper. It is hoped that relevant researchers can get inspiration from this paper and develop high-activity Co3O4-based methane combustion catalyst.

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Section: Noble Metalsmentioning

confidence: 95%

Section: Co 3 O 4 Composite Cat...mentioning

confidence: 99%

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

et al. 2023

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“…As an alternative, more environmentally friendly procedures are gaining importance. Recently, pollen has been used as a bio-template in catalyst preparation, providing a porous structure to deposit Co 3 O 4 , 13 but the effect of the extract on Co 3 O 4 synthesis was not studied. Organisms possess a variety of metabolites that can be employed as reducing agents, also featuring economic and environmentally-friendly aspects.…”

Section: Introductionmentioning

confidence: 99%

Microalgae-derived Co₃O₄ nanomaterials for catalytic CO oxidation

Sidorowicz,

Yigit,

Wicht

et al. 2024

RSC Adv.

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Enhanced dielectric and piezoelectric temperature stability of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 porous ceramics for energy harvesting

Liu,

Du,

Zhang

et al. 2024

Ceramics International

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Fabrication of Pt/Co3O4 nanocatalysts based on pollen template for low-temperature CO oxidation

Cited by 12 publications

References 32 publications

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

Microalgae-derived Co₃O₄ nanomaterials for catalytic CO oxidation

Enhanced dielectric and piezoelectric temperature stability of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 porous ceramics for energy harvesting

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Fabrication of Pt/Co3O4 nanocatalysts based on pollen template for low-temperature CO oxidation

Cited by 12 publications

References 32 publications

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

Microalgae-derived Co3O4 nanomaterials for catalytic CO oxidation

Enhanced dielectric and piezoelectric temperature stability of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 porous ceramics for energy harvesting

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Microalgae-derived Co₃O₄ nanomaterials for catalytic CO oxidation