Novel Ionic Liquid Synthesis of Bimetallic Fe–Ru Catalysts for the Direct Hydrogenation of CO2 to Short Chain Hydrocarbons

IF 3.8 3区 化学 Q2 CHEMISTRY, PHYSICAL Catalysts Pub Date : 2023-12-07 DOI:10.3390/catal13121499
Marina Maddaloni, Ander Centeno-Pedrazo, Simone Avanzi, N. J. Mazumdar, H. Manyar, N. Artioli
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Abstract

The selective hydrogenation of CO2 for the production of net-zero fuels and essential chemical building blocks is a promising approach to combat climate change. Key to this endeavor is the development of catalysts with high activity and selectivity for desired hydrocarbon products in the C2–C5 range. The process involves a two-step reaction, starting with the reverse water–gas shift (RWGS) reaction and proceeding to the Fischer–Tropsch reactions under high pressure. Understanding the catalyst features that control the selectivity of these pathways is crucial for product formation, as well as identifying morphological changes in the catalysts during the reaction to optimize their performance. In this study, an innovative method for synthesizing iron–ruthenium bimetallic catalysts is introduced, capitalizing on the synergistic effects of these metals as active phases. This method leverages ionic liquids as solvents, allowing for the precise and uniform distribution of active metal phases. Advanced characterizations and extensive catalytic tests have demonstrated that the use of ionic liquids outperformed traditional colloid-based techniques, resulting in superior selectivity for target hydrocarbons. The success of this inventive approach not only advances the field of CO2 hydrogenation catalysis, but also represents a significant stride towards sustainable e-fuel production.
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用于将二氧化碳直接加氢转化为短链碳氢化合物的新型离子液体合成双金属 Fe-Ru 催化剂
二氧化碳选择性加氢生产净零燃料和基本化学构件是对抗气候变化的一种有希望的方法。这一努力的关键是开发具有高活性和选择性的催化剂,以获得所需的C2-C5范围内的碳氢化合物产物。该过程包括两步反应,从逆向水气转换(RWGS)反应开始,然后在高压下进行费托反应。了解控制这些途径选择性的催化剂特征对于产物的形成至关重要,并且在反应过程中识别催化剂的形态变化以优化其性能。本研究介绍了一种利用铁钌双金属作为活性相的协同作用合成铁钌双金属催化剂的创新方法。该方法利用离子液体作为溶剂,允许活性金属相的精确和均匀分布。先进的表征和广泛的催化测试表明,离子液体的使用优于传统的胶体基技术,对目标碳氢化合物具有更高的选择性。这种创新方法的成功不仅推动了二氧化碳加氢催化领域的发展,而且代表了向可持续电子燃料生产迈出的重要一步。
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来源期刊
Catalysts
Catalysts CHEMISTRY, PHYSICAL-
CiteScore
6.80
自引率
7.70%
发文量
1330
审稿时长
3 months
期刊介绍: Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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