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The Absence and Importance of Operando Techniques for Metal-Free Catalysts

机译：无金属催化剂的操作技术的缺乏和重要性

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摘要

Operando characterization techniques have played a crucial role in modern technological developments. In contrast to the experimental uncertainties introduced by ex situ techniques, the simultaneous measurement of desired sample characteristics and near-realistic electrochemical testing provides a representative picture of the underlying physics. From Li-ion batteries to metal-based electrocatalysts, the insights offered by real-time characterization data have enabled more efficient research programs. As an emerging class of catalyst, much of the mechanistic understanding of metal-free electrocatalysts continues to be elusive in comparison to their metal-based counterparts. However, there is a clear absence of operando characterization performed on metal-free catalysts. Through the proper execution of operando techniques, it can be expected that metal-free catalysts can achieve exceptional technological progress. Here, the motivation of using operando characterization techniques for metal-free carbon-based catalyst system is considered, followed by a discussion of the possibilities, difficulties and benefits of their applications.
机译：Operando表征技术在现代技术发展中起着至关重要的作用。与非原位技术引入的实验不确定性相反，所需样品特征的同时测量和近乎真实的电化学测试提供了基础物理的代表性图像。从锂离子电池到金属基电催化剂，实时表征数据提供的见解使更高效的研究计划成为可能。作为新兴的催化剂类别，与基于金属的电催化剂相比，对无金属电催化剂的许多机理理解仍然难以捉摸。但是，显然没有在无金属催化剂上进行操作表征的情况。通过正确执行操作技术，可以预期无金属催化剂可以实现卓越的技术进步。在此，考虑了将操作表征技术用于无金属碳基催化剂体系的动机，然后讨论了其应用的可能性，困难和益处。

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  • 来源
    《Advanced Materials》 |2019年第13期|1805609.1-1805609.7|共7页
  • 作者

    Yuan Yifei; Li Matthew; Bai Zhengyu; Jiang Gaopeng; Liu Bin; Wu Tianpin; Chen Zhongwei; Amine Khalil; Lu Jun;

  • 作者单位

    Argonne Natl Lab, Chem Sci & Engn Div, 9700 Cass Ave, Lemont, IL 60439 USA;

    Argonne Natl Lab, Chem Sci & Engn Div, 9700 Cass Ave, Lemont, IL 60439 USA|Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada;

    Henan Normal Univ, Minist Educ, Key Lab Green Chem Media & React, Sch Chem & Chem Engn, Xinxiang 453007, Peoples R China;

    Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada;

    Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore;

    Argonne Natl Lab, Xray Sci Div, 9700 Cass Ave, Lemont, IL 60439 USA;

    Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada;

    Argonne Natl Lab, Chem Sci & Engn Div, 9700 Cass Ave, Lemont, IL 60439 USA;

    Argonne Natl Lab, Chem Sci & Engn Div, 9700 Cass Ave, Lemont, IL 60439 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    CO2 reduction; metal-air battery; metal-free electrocatalysts; operando characterization;

    机译：二氧化碳减排;金属空气电池;无金属电催化剂;操作数表征;

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