束缚氧将甲烷转化为甲醇

IF 42.8 1区化学 Q1 CHEMISTRY, PHYSICAL

Nature Catalysis Pub Date : 2025-07-24 DOI:10.1038/s41929-025-01381-y

Aditya Prajapati

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引用次数: 0

摘要

对氧化剂的精确控制——即防止过度氧化——是低温甲烷升级过程中缺失的环节。现在，碳酸盐在金红石IrO2上的电分裂被证明覆盖在表面上的氧附原子作为束缚的，单步氢萃取器。一个亚基可以从甲烷中提取氢，形成甲氧基中间体，而邻近的位点可以使该中间体质子化，形成甲醇。总之，该机制实现了甲烷在室温下以90%的选择性转化为甲醇。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Tethered oxygen turns methane into methanol

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Tethered oxygen turns methane into methanol

Precise control of the oxidant — that is, preventing overoxidation — is the missing link in low-temperature methane upgrading. Now, the electro-splitting of carbonate on rutile IrO2 is shown to cover the surface with on-top oxygen adatoms that act as tethered, single-step hydrogen abstractors. One subset can pull the hydrogen from methane to form a methoxy intermediate, while the neighbouring site can protonate this intermediate to form methanol. Together, this mechanism delivers a room-temperature conversion of methane to methanol with >90% selectivity.

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来源期刊

Nature Catalysis Chemical Engineering-Bioengineering

CiteScore

52.10

自引率

1.10%

发文量

140

期刊介绍： Nature Catalysis serves as a platform for researchers across chemistry and related fields, focusing on homogeneous catalysis, heterogeneous catalysis, and biocatalysts, encompassing both fundamental and applied studies. With a particular emphasis on advancing sustainable industries and processes, the journal provides comprehensive coverage of catalysis research, appealing to scientists, engineers, and researchers in academia and industry. Maintaining the high standards of the Nature brand, Nature Catalysis boasts a dedicated team of professional editors, rigorous peer-review processes, and swift publication times, ensuring editorial independence and quality. The journal publishes work spanning heterogeneous catalysis, homogeneous catalysis, and biocatalysis, covering areas such as catalytic synthesis, mechanisms, characterization, computational studies, nanoparticle catalysis, electrocatalysis, photocatalysis, environmental catalysis, asymmetric catalysis, and various forms of organocatalysis.