Advanced Catalytic Systems for Direct Methane to Methanol Conversion DOI
Sirous Motahari,

Sadegh Froud,

Mohammad Reza Rahimpour

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Unveiling the Role of Copper Valence States in Enhancing the Catalytic Performance of Copper-Modified ZSM-5 for Direct Methane Conversion DOI Open Access

Yunhan Pu,

Huajie Zhang,

Yanjun Li

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 277 - 277

Published: March 16, 2025

The conversion of methane (CH4) to methanol (CH3OH) under mild conditions remains a significant challenge in catalysis. In this study, we introduce method adjust the surface valence states copper species Cu-ZSM-5 catalysts by annealing different atmospheres (N2, air, and H2). Among these, 10% catalyst calcined H2 showed outstanding performance, achieving productivity 8.08 mmol/(gcat·h) 91% selectivity at 70 °C 3 MPa using H2O2 as oxidant. Comprehensive characterization revealed that optimized Cu lower state (predominantly Cu+), enhancing CH4 adsorption promoting activation generate ·OH ·CH3 radicals, which drive selective CH3OH formation. situ DRIFTS radical trapping experiments further confirmed critical role Cu+ facilitating C-H bond cleavage suppressing overoxidation.

Language: Английский

Citations

0
Deciphering the intricate mechanisms behind the selective oxidation of methane to C1 and C2 oxygenates over FeAu/γ-Al2O3 catalysts DOI

Marimuthu Prabu,

Marimuthu Manikandan,

B. Sathya Sai Rengam

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 512, P. 162510 - 162510

Published: April 17, 2025

Language: Английский

Citations

0
Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions DOI Creative Commons

Felipe Anchieta e Silva,

Thenner S. Rodrigues

Methane, Journal Year: 2024, Volume and Issue: 3(2), P. 359 - 379

Published: June 11, 2024

This study investigates the utilization of controlled nanocatalysts in methane conversion reactions, addressing pressing need for efficient as a feedstock valuable chemicals and clean energy. The methods employed include comprehensive review recent advancements nanocatalyst synthesis, characterization, application, well critical analysis underlying mechanisms controversies activation transformation. main findings reveal significant progress design synthesis nanocatalysts, enabling enhanced activity, selectivity, stability reactions. Moreover, highlights importance resolving surrounding metal–support interactions rational catalyst design. Overall, underscores pivotal role nanotechnology shaping future sustainable energy production, providing insights guiding research directions technological developments this field.

Language: Английский

Citations

2
Simple Fabrication of Hydrophobicity-Controlled Fe-ZSM-5 for Aqueous-Phase Partial Oxidation of Methane with Hydrogen Peroxide DOI Open Access

Seok Young Hwang,

Minjae Kwon,

Jongkook Hwang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(4), P. 280 - 280

Published: April 20, 2024

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

Language: Английский

Citations

1
Advanced Catalytic Systems for Direct Methane to Methanol Conversion DOI
Sirous Motahari,

Sadegh Froud,

Mohammad Reza Rahimpour

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

0