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同时养CO2用于甲基的芳香化在双功能岩支持的ZnMoO₄

Shengpeng Xia¹, Kun Zhao¹, Yunfei Gao²

¹CAS Key Laboratory of Renewable Energy and Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, School of Energy Science and Engineering, University of Science and Technology of China, Guangzhou, 510640, PR China.

Angewandte Chemie (International ed. in English)

|November 11, 2024

概括

在ZnMoO4/ZSM-5催化剂上与2-甲基联合养二氧化碳 (CO2),可提高可持续的烯生产. 这种新的方法显著提高了产量,并抑制了焦炭的形成,为生物化学品提供了更绿色的途径.

科学领域:

催化剂是一种催化剂.
可持续化学可持续化学
生物质转换生物质转换

背景情况:

生物的芳香化对于可持续的生物化学品至关重要,但由于产量低和催化剂焦化而受到影响.
传统的天酸盐催化剂在2-甲基芳香化的效率和稳定性方面存在局限性.

研究的目的:

开发一种新型的催化系统,使用二氧化碳联合养来高效地进行二甲基芳香化.
为了研究机制和催化剂设计,以改善烯生产和减少焦化.

主要方法:

使用一种双功能ZSM-5支持的ZnMoO4催化剂,用于二氧化碳和二甲基的联合养.
分析了反应中间体和路径,包括焦炭形成和表面氧气空缺.

主要成果:

对二甲基和二氧化碳实现了>97%的转化,对和二氧化碳的碳产量>85%.
减少了焦炭的形成,从22.3%降至8.6%,并将基副产品抑制到0.05%.
证明ZnMoO4/ZSM-5催化剂有利于基于环烯和基的脱水芳香化途径.

结论:

在ZnMoO4/ZSM-5上与2-甲基同时养CO2,提供了一种高效的途径,用于通过抑制焦化生产烯.
催化剂表面的氧气空缺促进了二氧化碳吸附和焦炭反应,挑战了现有的芳香化机制.
这项工作为生物质利用过程强化提供了洞察力,以实现负碳方法.

关键词:

2-甲基二甲基二甲基二甲基二甲基二甲基二甲基二甲基二氧化碳的共同养.二氧化碳转化转换方法反应机制的反应机制泽奥莱特石是一种热带石.

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