A Versatile Li0.5FePO4 Reference Electrode for Nonaqueous Electrochemical Conversion Technologies,ACS Energy Letters

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A Versatile Li0.5FePO4 Reference Electrode for Nonaqueous Electrochemical Conversion Technologies
ACS Energy Letters ( IF 19.3 ) Pub Date : 2022-11-28 , DOI: 10.1021/acsenergylett.2c02190
Eric J. McShane ₁ , Peter Benedek _{1,

2} , Valerie A. Niemann _{1,

2} , Sarah J. Blair _{1,

2} , Gaurav A. Kamat _{1,

2} , Adam C. Nielander _{2,

3} , Thomas F. Jaramillo _{1,

2,

3} , Matteo Cargnello _{1,

2}

Affiliation

The electrification of chemical processes provides a means to effectively utilize rapidly expanding renewable energy resources. Nonaqueous electrochemical systems offer promising opportunities, such as steering selectivity toward N₂ reduction over the H₂ evolution reaction. However, nonaqueous environments pose challenges for reference electrodes (REs), presenting a need for their design and development. In this study, we show the utility of a Li_0.5FePO₄ (LFP) RE for nonaqueous electrochemical systems, demonstrating various desirable characteristics: remarkable voltage stability across a variety of electrochemical environments, geometric flexibility, and minimal cation leakage concerns. We show that the LFP RE can serve as an immediate replacement for conventional REs commonly employed in nonaqueous electrochemical systems, such as Pt wire and Ag/AgCl REs.

中文翻译：

用于非水电化学转化技术的多功能 Li0.5FePO4 参比电极

化学过程的电气化提供了一种有效利用迅速扩大的可再生能源资源的手段。_{非水电化学系统提供了有前途的机会，例如在 H 2}析出反应中转向 N ₂还原的选择性。然而，非水环境对参比电极 (RE) 提出了挑战，需要对其进行设计和开发。在这项研究中，我们展示了 Li _0.5 FePO _4的效用(LFP) RE 用于非水电化学系统，展示了各种理想的特性：在各种电化学环境中具有出色的电压稳定性、几何灵活性和最小的阳离子泄漏问题。我们表明，LFP RE 可以立即替代非水电化学系统中常用的传统 RE，例如 Pt 线和 Ag/AgCl RE。

更新日期：2022-11-28

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