Transition Metal (Ni, Cu and Fe) Substituted Co3O4 – ZrO2 Catalysts for Lean Methane Combustion

Singh, Satyapaul A.; Madras, Giridhar; Sreedhar, I.

doi:10.1007/s11244-020-01382-0

Cited by 12 publications

(6 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The catalytic oxidation of CH 4 has been widely investigated (Li et al, 2020;Jang et al, 2021;He et al, 2019). So far, researchers in this field have utilized a broad range of catalysts, including those based on noble metals (Pt and Pd) (Gao et al, 2021;Jang et al, 2021), transition metal oxides (Singh et al, 2020), and perovskite-and spinel-type materials (Lim et al, 2017a;Chu et al, 2022). Pd is thought to be a promising active ingredient in the oxidation of CH 4 (Ding et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation

Peng

Ma²,

Ma³

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

Pd/Al2O3 catalysts modified by different chemical elements (Mg, Si, Ce, and Zr) were tested for methane (CH4) catalytic combustion, and PdO nanoparticles loaded on modified Al2O3 were systematically studied. These conditions assess the carrier effects of Pd/Al2O3 and acid strength influences on CH4 combustion. We observed carrier effects on activation energy through tuning Pd 3d binding energies (BEs) and on pre-exponential factors (A) through Pd dispersion and acidity on supports. When the BE of Pd 3d5/2 is 337.3 eV, PdO nanoparticles loaded on modified Al2O3 have excellent activity in cracking the C−H bond of CH4, which leads to the lowest activation energy (Ea), regardless of the size effect of the PdO nanoparticle. Furthermore, a theoretical construction that acid sites on catalysts promote the reversible elementary step (2Pd−OH ↔ Pd−O* + Pd* + H2O) right shifts improving the A dependency on the quantity of exposed Pd* and Pd−O*. As a result, Al2O3, as the carrier, not only modifies the electronic characteristics and size of supported PdO nanoparticles but also participates in the reaction process via acid sites on the surface of Al2O3.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation

Peng

Ma²,

Ma³

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…Throughout history, researchers have been working tirelessly to synthesize Co 3 O 4 with varying morphologies [ 35 , 36 , 37 , 38 ], ranging from cubes [ 39 ] and sheets [ 40 ] to petals [ 41 ], lines, tubular structures [ 42 ], spherical particles [ 43 ], and even nano rod [ 44 ]. Each of these morphologies exposes a different crystal surface, which in turn affects the catalytic activity of the resulting material.…”

Section: Catalytic Oxidation Of Methane By Nano-co 3 ...mentioning

confidence: 99%

“…CeO 2 /Co 3 O 4 composites have proven to be highly effective for the combustion of methane [ 109 , 110 , 111 , 112 , 113 , 114 , 115 ]. However, during the catalytic combustion process, the production of SO 2 can inhibit the reaction and reduce the reactivity of the catalyst [ 37 ]. This is where CeO 2 comes in as a sort of SO 2 scavenger.…”

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

confidence: 99%

“…Singh et al [ 37 ] prepared transition metal (Ni, Cu, and Fe) substituted Co 3 O 4 -ZrO 2 catalysts by PEG assisted Sono chemical synthesis. In Figure 11 , the HRTEM images and selective area diffraction patterns of Co 3 O 4 -ZrO 2 (a–c), Ni/Co 3 O 4 -ZrO 2 (d–f), Cu/Co 3 O 4 -ZrO 2 (h–j), and Fe/Co 3 O 4 -ZrO 2 (k–l) show that Ni, Cu, and Fe substituted well.…”

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

confidence: 99%

“… Bright field, high resolution, and selective area diffraction images of ( a – c ) Co 3 O 4 -ZrO 2 , ( d – f ) Ni/Co 3 O 4 -ZrO 2 , ( g – i ) Cu/Co 3 O 4 -ZrO 2 , and ( j – l ) Fe/Co 3 O 4 -ZrO 2 . Reproduced with permission from Satyapaul A. Singh, Transition Metal (Ni, Cu and Fe) Substituted Co 3 O 4 -ZrO (2) Catalysts for Lean Methane Combustion; published by Topics in Catalysis 2021 [ 37 ]. …”

Section: Figurementioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2023

View full text Add to dashboard Cite

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.

show abstract

Word Summit “Catalysis Engineering & Technology” (CatET-2019)

Sarli¹,

2021

Top Catal

View full text Add to dashboard Cite

Transition Metal (Ni, Cu and Fe) Substituted Co3O4 – ZrO2 Catalysts for Lean Methane Combustion

Cited by 12 publications

References 50 publications

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation

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

Word Summit “Catalysis Engineering & Technology” (CatET-2019)

Contact Info

Product

Resources

About