Haldrian Iriawan, Antonia Herzog, Sunmoon Yu, Nicole Ceribelli, Yang Shao-Horn
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The electrochemical lithium-mediated N2 reduction is a promising process for sustainable ammonia synthesis. Unfortunately, fundamental understanding linking the interfacial chemistry of lithium plating with ammonia efficiency is not well understood. We investigated a series of tetrahydrofuran electrolytes (LiClO4, LiBF4, LiTFSI, LiFSI) at 0.2–7.0 M. The Li+/Li potential (ELi+/Li) measured against the electrolyte-invariant Me10Fc reference increased with more dissociative salts and higher concentration. The upshift in ELi+/Li was found to correlate with greater ammonia production stability and faradaic efficiency as well as the production rate. This correlation could be attributed to altered solid–electrolyte interphase (SEI), which revealed prominent anion-derived (LiF) and alkoxide (LiOEt) species with increasing ELi+/Li from Raman spectroscopy, potentially providing more LixN and enhanced ion transport. Such insights can be used to guide the design of electrolytes to promote lithium-mediated ammonia synthesis for practical applications.
ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment
CiteScore
31.20
自引率
5.00%
发文量
469
审稿时长
1 months
期刊介绍:
ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format.
ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology.
The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.