⌘+K

Pulse Explore Clubs Researchers Journals

Home Clubs Explore

March 6, 2026Open Access

Dual function of silica-supported sodium tungstate catalysts for selective hydrogen combustion (SHC) and oxidative coupling of methane (OCM)

Oluwatosin Ohiro Elijah Kipp Aditya Bhan Bryan Goldsmith

View Full Paper

Ask AI

Bookmark

Share

Key Points

To investigate the dual functions of silica-supported sodium tungstate catalysts in selective hydrogen combustion and oxidative coupling of methane.
Conducted experiments at 923 K to assess kinetics of SHC and OCM over Na₂WO₄/SiO₂.
Analyzed the inhibition of OCM by H₂ and its effect on CH₃ radicals and C₂ selectivity.
Utilized kinetic modeling and DFT calculations to validate mechanistic pathways.
H₂ inhibits OCM by suppressing CH₃ radicals, leading to reduced C₂ selectivity.
SHC consumes H₂ faster than CH₄, mitigating the inhibitory effect on OCM.
Distinct mechanistic pathways for SHC and OCM were identified and validated.

Implication

Kinetic modeling reveals sodium tungstate catalysts enhance methane coupling and hydrogen combustion efficiency.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Ohiro et al. (2026) studied this question.

synapsesocial.com/papers/69acc57d32b0ef16a404fca9 https://doi.org/10.5281/zenodo.18891007

View Full Paper

Ask AI

Bookmark

Share

Keep reading

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1Selective Catalytic Combustion of Hydrogen under Aerobic Conditions on Na2WO4/SiO22024 · 6 citations
2Selective Catalytic Combustion of Hydrogen under Aerobic Conditions on Na<sub>2</sub>WO<sub>4</sub>/SiO<sub>2</sub>2024
3Modeling of Active Sites and Mechanism of Oxidative Coupling of Methane over Alkali Tungstate Catalysts2024 · 5 citations
4Na‐W‐Mn/SiO <sub>2</sub> Catalyst With MnO <sub>x</sub> Regulated NaWO <sub>x</sub> Sites for Low‐Temperature Oxidative Coupling of MethaneOriginal Research · 2026
5High-Pressure oxidative coupling of methane on alkali metal catalyst – Microkinetic analysis and operando thermal visualization2024 · 8 citations