拓展

IF 60.1 1区 材料科学 Q1 ENERGY & FUELS
James Gallagher
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引用次数: 0

摘要

二氧化碳可以电催化转化为各种有用的化学物质和燃料。近年来,研究表明镍基催化剂可以生成长链烃。然而,选择性仍然是有限的,而且如何有利于合成支链碳氢化合物,这是液体燃料的理想成分,仍然不是很清楚。现在,Núria López, Boon Siang Yeo和他在新加坡、西班牙和瑞士的同事全面探索了二氧化碳转化为碳氢化合物的反应机制,并提供了提高支链分子选择性的方法。研究人员表明,在镍催化剂中加入氟改变了氧化镍在反应过程中的还原程度。他们发现,适度的还原态——被认为是Ni2+之上的Ni0层——可以促进二氧化碳转化为长链碳氢化合物。然后,研究小组进行了包括电还原各种探针分子(例如,醛、乙炔和烷基碘化物)的研究,这些探针分子作为二氧化碳还原过程中可能形成的化学中间体的替代品,使他们能够建立一个详细的机制图。这种对不同物质在反应网络中的作用的理解,使研究人员倾向于施加脉冲电位的想法(而不是典型的施加恒定电位),发现这增加了形成分支产物的比例。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Branching out
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来源期刊
Nature Energy
Nature Energy Energy-Energy Engineering and Power Technology
CiteScore
75.10
自引率
1.10%
发文量
193
期刊介绍: Nature Energy is a monthly, online-only journal committed to showcasing the most impactful research on energy, covering everything from its generation and distribution to the societal implications of energy technologies and policies. With a focus on exploring all facets of the ongoing energy discourse, Nature Energy delves into topics such as energy generation, storage, distribution, management, and the societal impacts of energy technologies and policies. Emphasizing studies that push the boundaries of knowledge and contribute to the development of next-generation solutions, the journal serves as a platform for the exchange of ideas among stakeholders at the forefront of the energy sector. Maintaining the hallmark standards of the Nature brand, Nature Energy boasts a dedicated team of professional editors, a rigorous peer-review process, meticulous copy-editing and production, rapid publication times, and editorial independence. In addition to original research articles, Nature Energy also publishes a range of content types, including Comments, Perspectives, Reviews, News & Views, Features, and Correspondence, covering a diverse array of disciplines relevant to the field of energy.
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