Tuning the CO2 Hydrogenation Selectivity of Rhodium Single-Atom Catalysts on Zirconium Dioxide with Alkali Ions,Angewandte Chemie International Edition

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Tuning the CO2 Hydrogenation Selectivity of Rhodium Single-Atom Catalysts on Zirconium Dioxide with Alkali Ions
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-12-27 , DOI: 10.1002/anie.202218167
Shang Li ₁ , Yuxing Xu ₁ , Hengwei Wang ₁ , Botao Teng ₂ , Qin Liu ₁ , Qiuhua Li ₁ , Lulu Xu ₁ , Xinyu Liu ₁ , Junling Lu ₁

Affiliation

Doping alkali ions (e.g., Na) into Rh₁/ZrO₂ enables complete switching of the reaction product from CH₄ to CO in CO₂ hydrogenation over a broad temperature range. It was found that Na⁺ ions change the surface intermediate from HCOO* to COOH* and render the Rh₁ atoms electron deficient with restrained H₂ activation capability and weakened CO adsorption, thus cooperatively boosting CO formation.

中文翻译：

用碱离子调节铑单原子催化剂对二氧化锆的 CO2 加氢选择性

将碱金属离子（例如，Na）掺杂到Rh ₁ /ZrO ₂中能够在很宽的温度范围内将CO ₂氢化反应中的反应产物从CH _{4完全转换为CO。}结果发现，Na ⁺离子将表面中间体从 HCOO* 变为 COOH*，并使 Rh ₁原子缺电子，H ₂活化能力受限，CO 吸附减弱，从而协同促进 CO 形成。

更新日期：2022-12-27

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