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Core-Shell Photoanodes for Photoelectrochemical Water Oxidation

机译：用于光电化学水氧化的核心壳光电

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摘要

Photoelectrochemical (PEC) water splitting into hydrogen and oxygen is a promising solution for the conversion and storage of solar energy. Because sluggish water oxidation is the bottleneck of water splitting, the design and preparation of an efficient photoanode is intensively investigated. Currently, all known photoanode materials suffer from at least one of the following drawbacks: (1) low carriers separation efficiency; (2) sluggish surface water oxidation reaction; (3) poor long-term stability; (4); insufficient water adsorption and gas desorption. Core-shell configurations can endow a photoanode with improved activity and stability by coating an overlayer that plays energetic, catalytic, and/or protective roles. The construction strategy has an important effect on the activity of a core-shell photoanode. Nonetheless, the mechanism for the improvement of performance is still ambiguous and is worthy of a closer examination. In this review, the successes and challenges of core-shell photoanodes for water oxidation, focusing on synthesis strategies as well as functionalities (facilitating carrier separation, surface reaction promotion, corrosion prevention, and bubble detachment) are explored. Finally, the perspectives of this class of materials in terms of new opportunities and efforts are discussed.
机译：光电化学（PEC）水分解成氢气和氧气是用于转换和储存太阳能的有希望的解决方案。因为缓慢的水氧化是水分裂的瓶颈，所以有效的光电码的设计和制备被密集地研究。目前，所有已知的光电码材料至少存在以下缺点中的至少一个：（1）低载波分离效率; （2）表面水氧化反应缓慢; （3）长期稳定性差; （4）;水吸附不足和天然气解吸。核心外壳配置可以通过涂覆发挥精力充沛，催化和/或保护作用的叠层来赋予光电磁极，具有改善的活性和稳定性。施工策略对核心壳光电码的活动具有重要影响。尽管如此，提高性能的机制仍然含糊不清，值得仔细考试。在这篇综述中，探讨了水氧化核心壳光电池的成功和挑战，专注于合成策略以及功能性（促进载流子分离，表面反应促进，防腐蚀和泡沫分离）。最后，讨论了这类材料在新的机会和努力方面的观点。

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  • 来源
    《Advanced Functional Materials》 |2021年第36期|2104269.1-2104269.28|共28页
  • 作者

    Pan Jin-Bo; Shen Sheng; Chen Lang; Au Chak-Tong; Yin Shuang-Feng;

  • 作者单位

    Hunan Univ Coll Chem & Chem Engn State Key Lab Chemo Biosensing & Chemometr Minist Educ Adv Catalyt Engn Res Ctr Changsha 410082 Peoples R China;

    Hunan Univ Coll Chem & Chem Engn State Key Lab Chemo Biosensing & Chemometr Minist Educ Adv Catalyt Engn Res Ctr Changsha 410082 Peoples R China;

    Hunan Univ Coll Chem & Chem Engn State Key Lab Chemo Biosensing & Chemometr Minist Educ Adv Catalyt Engn Res Ctr Changsha 410082 Peoples R China;

    Fuzhou Univ Coll Chem Engn Fuzhou 350002 Peoples R China;

    Hunan Univ Coll Chem & Chem Engn State Key Lab Chemo Biosensing & Chemometr Minist Educ Adv Catalyt Engn Res Ctr Changsha 410082 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    core-shell photoanodes; oxygen evolution reaction; photoelectrochemistry; water splitting;

    机译：核心壳光电桥;氧气进化反应;光电化学;水分裂;

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