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<p>Oxygen vacancies in oxide materials, although demonstrated to be beneficial for many applications, are hard to be generated and manipulated as desired, particularly for bulk materials with a large size and limited surface area. Here, by simply coupling the thermal activation with a simultaneously applied electric field, we efficiently generate ordered oxygen vacancies within bulk crystals of ternary SrAl<sub>2</sub>O<sub>4</sub>, binary TiO<sub>2</sub> and other common oxide materials, which give rise to superior functionalities. We expect that this approach offers a general and practical way for the vacancy engineering of oxide materials and holds great promise for their applications.</p>

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A facile approach for generating ordered oxygen vacancies in metal oxides

  • 期刊论文

  • 发表日期：

    2025年3月7日

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  • Kexin Chen,
  • Xuanyi Yuan,
  • Zhaobo Tian,
  • Mingchu Zou,
  • Yifei Yuan,
  • Zhanglin Chen,
  • Qinghua Zhang,
  • YuYang Zhang,
  • Xin Jin,
  • Tianpin Wu,
  • Reza Shahbazian-Yassar,
  • Guanghua Liu

摘要

Oxygen vacancies in oxide materials, although demonstrated to be beneficial for many applications, are hard to be generated and manipulated as desired, particularly for bulk materials with a large size and limited surface area. Here, by simply coupling the thermal activation with a simultaneously applied electric field, we efficiently generate ordered oxygen vacancies within bulk crystals of ternary SrAl2O4, binary TiO2 and other common oxide materials, which give rise to superior functionalities. We expect that this approach offers a general and practical way for the vacancy engineering of oxide materials and holds great promise for their applications.