The role of surface hydroxyl groups on a single-atomic Rh1/ZrO2 catalyst for direct methane oxidation,Chemical Communications

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The role of surface hydroxyl groups on a single-atomic Rh1/ZrO2 catalyst for direct methane oxidation
Chemical Communications ( IF 4.3 ) Pub Date : 2021-1-8 , DOI: 10.1039/d0cc07514k
Gunjoo Kim _{1,

2,

3,

4} , Gihun Kwon _{1,

2,

3,

4} , Hyunjoo Lee _{1,

2,

3,

4}

Affiliation

A single atomic Rh catalyst immobilized on zirconia (Rh₁/ZrO₂) was modified by hydrothermal treatment to have surface hydroxyl groups and used for direct methane oxidation. Both O₂ and H₂O₂ were used as oxidants. The amount of H₂O₂ could be reduced with enhanced methanol productivity in the presence of the surface hydroxyl groups. The formation of the surface hydroxyl groups upon hydrothermal treatment and their disappearance upon reaction were confirmed with diffuse reflectance infrared Fourier transform spectroscopy, indicating that the surface hydroxyl groups participate in the surface reaction.

中文翻译：

表面羟基在单原子Rh1 / ZrO2催化剂上直接甲烷氧化的作用

通过水热处理对固定在氧化锆上的单原子Rh催化剂（Rh ₁ / ZrO ₂）进行改性，使其具有表面羟基，并用于直接甲烷氧化。O ₂和H ₂ O ₂均用作氧化剂。在存在表面羟基的情况下，可以通过提高甲醇生产率来减少H ₂ O ₂的量。用漫反射红外傅里叶变换光谱法证实了水热处理后表面羟基的形成以及它们在反应中的消失，表明表面羟基参与了表面反应。

更新日期：2021-01-19

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