Methane Oxidation over Cu2+/[CuOH]+ Pairs and Site-Specific Kinetics in Copper Mordenite Revealed by Operando Electron Paramagnetic Resonance and UV/Visible Spectroscopy,Angewandte Chemie International Edition

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Methane Oxidation over Cu2+/[CuOH]+ Pairs and Site-Specific Kinetics in Copper Mordenite Revealed by Operando Electron Paramagnetic Resonance and UV/Visible Spectroscopy
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2023-06-09 , DOI: 10.1002/anie.202303574
Jörg Wolfram Anselm Fischer ₁ , Andreas Brenig _{2,

3} , Daniel Klose ₁ , Jeroen Anton van Bokhoven _{2,

3} , Vitaly L Sushkevich ₃ , Gunnar Jeschke ₁

Affiliation

The Cu speciation in Cu-exchanged mordenite zeolites has been determined and site-specific redox-behavior and kinetic properties of monomeric and dimeric Cu²⁺ active sites in partial CH₄ oxidation have been analyzed by a complementary, multi-spectroscopic approach involving different operando and in situ techniques. Evidence for the participation of a [CuOH]⁺/Cu²⁺ site pair in CH₄ conversion is provided.

中文翻译：

原位电子顺磁共振和紫外/可见光谱揭示铜丝光沸石中 Cu2+/[CuOH]+ 对的甲烷氧化和位点特异性动力学

已确定 Cu 交换丝光沸石中的 Cu 形态，并通过涉及不同操作的互补多光谱方法分析了部分 CH _{4氧化中单体和二聚 Cu}²⁺活性位点的位点特异性氧化还原行为和动力学性质和现场技术。提供了[CuOH] ⁺ /Cu ²⁺位点对参与CH _{4转化的证据。}

更新日期：2023-06-09

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