Micro-meso hierarchical ZSM-5 zeolite supported RuO  nanoparticles for activity enhancement of catalytic vinyl chloride oxidation

Shuo-ming, Wang; Zhang, Hongliang; Wang, Mingju; Liu, Xuehua; Shang, Shuaiqi; Wang, Zhong; Zhang, Chuanhui

doi:10.1016/j.apsusc.2022.154906

Cited by 26 publications

(6 citation statements)

References 61 publications

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“…21 In relative pressure range of 0.4 to 1.0, hysteresis loops corresponding to H3 type were observed on all catalysts, suggesting the presence of mesoporous structures. 22 Additionally, the pore size distribution of all catalysts, as shown in Fig. 1d, confirmed the distribution of a significant number of mesopores, approximately 4 nm in size.…”

Section: Resultssupporting

confidence: 62%

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Li,

Wang,

Ding

et al. 2024

Catal. Sci. Technol.

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Section: Resultssupporting

confidence: 62%

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Li,

Wang,

Ding

et al. 2024

Catal. Sci. Technol.

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“…In addition, according to Liu's analysis, the A-site vacancy also has consequences on electronic modulation [21]. In Figure 4d, three oxygen counterparts corresponding to lattice oxygen (O latt ), surface-absorbed oxygen (O ads ), and oxygen-containing groups (O w ) are located at 529.1, 531.3, and 532.5 eV, respectively [37]. We further fitted the XPS data to the R Olatt = O latt /(O latt +O ads ) value as the ratio of O latt activated on the catalyst surface.…”

Section: Resultsmentioning

confidence: 96%

Urea-Assisted Sol-Gel Synthesis of LaMnO3 Perovskite with Accelerated Catalytic Activity for Application in Zn-Air Battery

Luo

Zheng

et al. 2023

Batteries

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Precious metal-based materials such as commercial Pt/C are available electrocatalysts for redox reactions in Zn-air batteries. However, their commercial use is still limited by slow kinetics and restricted stability. In this work, we highlight a facial urea-assisted sol-gel method to synthesize A-site vacancy in LaMnO3+δ oxide for boosting its catalytic activity and further explore the effect of the amount of urea on the A-site LaMnO3. The A-site vacancy in LMO was confirmed by XRD, TEM, and XPS, which revealed that the urea-assisted sol-gel method mitigated the A-site vacancy in LaMnO3+δ and increased its surface area, thus ultimately accelerating its redox reaction kinetics. The half-wave potential and current density of the resultant 3.0U-LMO electrocatalyst were 0.74 V and 5.74 mA cm−2, respectively. It is worth noting that the assembled Zn-air battery with the 3.0U-LMO catalyst presented a power output of 130.04 mW cm−2 at 0.51 V and a promising energy efficiency of 58.4% after 150 cycles. This protocol might offer an efficient approach for developing new defect-regulated perovskites for electrocatalysis.

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“…Physical adsorption, biodegradation, catalytic oxidation, etc., are adapted for HCHO removal nowadays. Among them, catalytic oxidation is the most efficient, which completely converts HCHO to harmless carbon dioxide (CO 2 ). − …”

Section: Introductionmentioning

confidence: 99%

Regulating the Pt–MnO₂ Interaction and Interface for Room Temperature Formaldehyde Oxidation

et al. 2023

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Formaldehyde (HCHO) is a hazardous pollutant in indoor space for humans because of its carcinogenicity. Removing the pollutant by MnO2-based catalysts is of great interest because of their high oxidation performance at room temperature. In this work, we regulate the Pt–MnO2 (MnO2 = manganese oxide) interaction and interface by embedding Pt in MnO2 (Pt-in-MnO2) and by dispersing Pt on MnO2 (Pt-on-MnO2) for HCHO oxidation over Pt–MnO2 catalysts with trace Pt loading of 0.01 wt %. In comparison to the Pt-in-MnO2 catalyst, the Pt-on-MnO2 catalyst has a higher Brunauer–Emmett–Teller surface area, a more active lattice oxygen, more oxygen vacancy activating more dioxygen molecules, more exposed Pt atoms, and noninternal diffusion of mass transfer, which contribute to the higher HCHO oxidation performance. The HCHO oxidation performance is stable over the Pt–MnO2 catalysts under high space velocity and high moisture humidity conditions, showing great potential for practical applications. This work demonstrates a more effective Pt-dispersed MnO2 catalyst than Pt-embedded MnO2 catalyst for HCHO oxidation, providing universally important guidance for metal–support interaction and interface regulation for oxidation reactions.

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Micro-meso hierarchical ZSM-5 zeolite supported RuO nanoparticles for activity enhancement of catalytic vinyl chloride oxidation

Cited by 26 publications

References 61 publications

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Urea-Assisted Sol-Gel Synthesis of LaMnO3 Perovskite with Accelerated Catalytic Activity for Application in Zn-Air Battery

Regulating the Pt–MnO₂ Interaction and Interface for Room Temperature Formaldehyde Oxidation

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Micro-meso hierarchical ZSM-5 zeolite supported RuO nanoparticles for activity enhancement of catalytic vinyl chloride oxidation

Cited by 26 publications

References 61 publications

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Effect of Cu modification to Ru/HZSM-5 catalysts on the catalytic combustion of vinyl chloride

Urea-Assisted Sol-Gel Synthesis of LaMnO3 Perovskite with Accelerated Catalytic Activity for Application in Zn-Air Battery

Regulating the Pt–MnO2 Interaction and Interface for Room Temperature Formaldehyde Oxidation

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Regulating the Pt–MnO₂ Interaction and Interface for Room Temperature Formaldehyde Oxidation