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首页> 外文期刊>Advanced Functional Materials >Recent Developments of Microenvironment Engineering of Single-Atom Catalysts for Oxygen Reduction toward Desired Activity and Selectivity
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Recent Developments of Microenvironment Engineering of Single-Atom Catalysts for Oxygen Reduction toward Desired Activity and Selectivity

机译：单原子催化剂微环境工程的最新发展，用于降低所需活性和选择性

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摘要

Oxygen reduction reaction (ORR) is an essential process for sustainable energy supply and sufficient chemical production in modern society. Single-atom catalysts (SACs) exhibit great potential on maximum atomic efficiency, high ORR activity, and stability, making them attractive candidates for pursuing next-generation catalysts. Despite substantial efforts being made on building diversiform single-atom active sites (SAASs), the performance of the obtained catalysts is still unsatisfactory. Fortunately, microenvironment regulation of SACs provides opportunities to improve activity and selectivity for ORR. In this review, first, ORR mechanism pathways on N-coordinated SAAS, electrochemical evaluation, and characterization of SAAS are displayed. In addition, recent developments in tuning microenvironment of SACs are systematically summarized, especially, strategies for microenvironment modulation are introduced in detail for boosting the intrinsic 4e(-)/2e(-) ORR activity and selectivity. Theoretical calculations and cutting-edge characterization techniques are united and discussed for fundamental understanding of the synthesis-construction-performance correlations. Furthermore, the techniques for building SAAS and tuning their microenvironment are comprehensively overviewed to acquire outstanding SACs. Lastly, by proposing perspectives for the remaining challenges of SACs and infant microenvironment engineering, the future directions of ORR SACs and other analogous procedures are pointed out.
机译：氧还原反应（ORR）是现代社会可持续能源供应和足够的化学生产的必要方法。单原子催化剂（SACS）对最大原子效率，高ORR活性和稳定性具有巨大潜力，使其具有追求下一代催化剂的有吸引力的候选者。尽管在建造多样性单原子活性地点（SAASS）上进行了大量努力，但所得催化剂的性能仍然不令人满意。幸运的是，Sacs的微环境调节为改善ORR的活动和选择性提供了机会。在本次综述中，首先，显示N-协调的SAAs，电化学评估和SaaS表征的ORR机制途径。此外，系统地总结了调整微环境的最新发展，特别是，详细介绍了微环境调制的策略，以提高内在4E（ - ）/ 2E（ - ）ORR活性和选择性。理论计算和尖端表征技术是团结的，讨论了对合成建设性能相关性的基本理解。此外，全面地概述了萨斯和调整其微环境的技术，以获得优秀的囊。最后，通过提出囊和婴儿微环境工程的剩余挑战的观点，指出了ORR SACS和其他类似程序的未来方向。

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  • 来源
    《Advanced Functional Materials》 |2021年第45期|2103857.1-2103857.37|共37页
  • 作者

    Li Longbin; Huang Bingyu; Tang Xiannong; Hong Yaoshuai; Zhai Weijuan; Hu Ting; Yuan Kai; Chen Yiwang;

  • 作者单位

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Sch Mat Sci & Engn Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Inst Polymers & Energy Chem Nanchang 330031 Jiangxi Peoples R China|Jiangxi Normal Univ Inst Adv Sci Res iASR Key Lab Funct Small Mol Minist Educ Nanchang 330022 Jiangxi Peoples R China;

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  • 正文语种 eng
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  • 关键词

    4e; (-); 2e; (-) process; microenvironment; O-containing intermediates; oxygen reduction; single-atom catalysts;

    机译：4E;（ - ）;2e;（ - ）过程;微环境;含O的中间体;氧气减少;单原子催化剂;

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