Na and Ti share roles

IF 60.1 1区 材料科学 Q1 ENERGY & FUELS
James Gallagher
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引用次数: 0
Na和Ti共享角色
从氮气中电化学合成氨可以帮助脱碳生产这种重要的化学和势能载体。近年来,锂介导的氨合成过程已被证明是有效的。在这种方法中,一般认为当施加电压时,Li(I)在阴极还原为Li金属,与N2反应形成氮化物;氮化物与电解质中的质子源反应,生成氨和Li(I)盐,原则上,这允许该过程重新开始。这种方法的缺点是Li -作为电化学还原的物质,结合并还原N2 -必须发挥多种作用,这使得优化具有挑战性。现在,加州理工学院的Karthish Manthiram和他的同事们报告了一个由两种不同金属组成的级联系统——Na和Ti——它们在电化学产生氨的过程中扮演着同样的角色。研究小组使用了一种由钠(I)盐、萘和钛(IV)四异丙醇组成的电解质,在一种以太溶剂中。研究人员提出,在关键的电化学步骤中,Na金属板在与萘反应之前在阴极上脱落,形成Na(I)萘化物,然后将Ti(IV)物质还原为Ti(II)。这种Ti(II)被认为是N2结合和还原为氨的位点。Manthiram和他的同事报告说,反应速率高达475 nmol cm-2 s-1,法拉第效率为24%,与其他锂基系统相比具有竞争力。除了由于跨不同组件的角色分离而增加的优化范围之外,该方法还有一个好处,即不依赖于Li,而Li的需求正在增加。
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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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