Partial oxidation of methane over Fe/ZSM-5 with hydrogen peroxide generated in situ over Pd/C in the presence of halide ions

Kang, Jongkyu; Park, Eun Duck

doi:10.1016/j.cattod.2023.114367

Cited by 3 publications

(2 citation statements)

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“…This implies that the intimate contact between Pd and Fe is important for methane oxidation with in situ generated H 2 O 2 from H 2 and O 2 . The effect of halide ions on the catalytic activity of aqueous-phase POM using H 2 O 2 generated in situ over Pd/C was also examined [115]. Among various halide ions, including F − , Cl − , Br − , and I − , Br − and I − were effective for the synthesis of H 2 O 2 from H 2 and O 2 , resulting in the synthesis of methane oxygenates from methane over Fe/ZSM-5.…”

Section: Pd-based Catalyst and Transition Metal-based Catalystmentioning

confidence: 99%

Liquid-Phase Selective Oxidation of Methane to Methane Oxygenates

Kang,

Park

2024

Catalysts

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Methane is an abundant and relatively clean fossil fuel resource; therefore, its utilization as a chemical feedstock has a major impact on the chemical industry. However, its inert nature makes direct conversion into value-added products difficult under mild conditions. Compared to the gas-phase selective oxidation of methane, there have been several recent advances in the liquid-phase conversion of methane. This review categorizes the reports on the liquid-phase selective oxidation of methane according to the solvent and oxidant used. The advantages and disadvantages of each approach are discussed. High yields of methyl bisulfate as a methanol precursor can be achieved using SO3 in sulfuric acid; however, more attention should be paid to the separation process and overall economic analysis. However, the aqueous-phase selective oxidation of methane with in situ generated H2O2 is quite promising from an environmental point of view, provided that an economical reducing agent can be used. Based on the current state-of-the-art on this topic, directions for future research are proposed.

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Section: Pd-based Catalyst and Transition Metal-based Catalystmentioning

confidence: 99%

Liquid-Phase Selective Oxidation of Methane to Methane Oxygenates

Kang,

Park

2024

Catalysts

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“…In particular, the selective oxidation of methane in water with hydrogen peroxide has been intensively studied over the last decade because methane is a relatively clean and abundant resource [6][7][8]. Inspired by enzymes (e.g., soluble and particulate methane monooxygenases) that can oxidize methane into methanol with dioxygen in the presence of reducing agents under ambient conditions [9], various biomimetic heterogeneous catalysts, such as Fe-and Cu-zeolites, have been examined for the aqueous-phase oxidation of methane with H 2 O 2 [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] or in situ-generated H 2 O 2 from H 2 and O 2 [28][29][30][31][32][33]. In addition to biomimetic heterogeneous catalysts, AuPd-based catalysts have recently been developed for this reaction [34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Simple Fabrication of Hydrophobicity-Controlled Fe-ZSM-5 for Aqueous-Phase Partial Oxidation of Methane with Hydrogen Peroxide

Hwang,

Kwon,

Hwang

et al. 2024

Catalysts

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Surface hydrophobicity is an important factor in controlling the catalytic activity of heterogeneous catalysts in various reactions, particularly liquid-phase reactions using water as the (co)solvent. In this study, the surface hydrophobicity of Fe-ZSM-5 was successfully controlled using a simple coating method in which furfuryl alcohol was used as the carbon precursor. Various techniques, such as N2 physisorption, temperature-programmed desorption of ammonia, and contact angle measurements of water droplets, were used to characterize the catalysts. Fe-ZSM-5 catalysts with different degrees of hydrophobicity were used for the aqueous-phase selective oxidation of methane with H2O2. The positive effect of the surface carbon coating on the catalytic performance was confirmed when the carbon content was not sufficiently high to block the pores.

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Revolution in Renewables: Integration of Green Hydrogen for a Sustainable Future

Zhang,

2024

Energies

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In recent years, global efforts towards a future with sustainable energy have intensified the development of renewable energy sources (RESs) such as offshore wind, solar photovoltaics (PVs), hydro, and geothermal. Concurrently, green hydrogen, produced via water electrolysis using these RESs, has been recognized as a promising solution to decarbonizing traditionally hard-to-abate sectors. Furthermore, hydrogen storage provides a long-duration energy storage approach to managing the intermittency of RESs, which ensures a reliable and stable electricity supply and supports electric grid operations with ancillary services like frequency and voltage regulation. Despite significant progress, the hydrogen economy remains nascent, with ongoing developments and persistent uncertainties in economic, technological, and regulatory aspects. This paper provides a comprehensive review of the green hydrogen value chain, encompassing production, transportation logistics, storage methodologies, and end-use applications, while identifying key research gaps. Particular emphasis is placed on the integration of green hydrogen into both grid-connected and islanded systems, with a focus on operational strategies to enhance grid resilience and efficiency over both the long and short terms. Moreover, this paper draws on global case studies from pioneering green hydrogen projects to inform strategies that can accelerate the adoption and large-scale deployment of green hydrogen technologies across diverse sectors and geographies.

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Partial oxidation of methane over Fe/ZSM-5 with hydrogen peroxide generated in situ over Pd/C in the presence of halide ions

Cited by 3 publications

References 50 publications

Liquid-Phase Selective Oxidation of Methane to Methane Oxygenates

Liquid-Phase Selective Oxidation of Methane to Methane Oxygenates

Simple Fabrication of Hydrophobicity-Controlled Fe-ZSM-5 for Aqueous-Phase Partial Oxidation of Methane with Hydrogen Peroxide

Revolution in Renewables: Integration of Green Hydrogen for a Sustainable Future

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