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Updated: May 15, 2025

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
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Published on: December 4, 2017

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揭示了针对高效氧降解反应 (ORR) 量身定制的β替代铁的潜力

Shivani Rathi1, Ikrar Ahmad1, Muniappan Sankar1

  • 1Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India. m.sankar@cy.iitr.ac.in.

Chemical communications (Cambridge, England)
|May 14, 2025
PubMed
概括

具有电子修饰组的新型铁烯催化剂在氧降解反应 (ORR) 中表现出高效率和稳定性,与白金性能相匹配. 绝缘效应和电子调显著增强了催化活性.

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Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
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Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
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