Zhang Huiyi, Wang Yan, Song Daqi, Wang Liang, Zhang Yifan, Wang Yong
School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
Nanomaterials (Basel). 2023 Jun 23;13(13):1921. doi: 10.3390/nano13131921.
Ce-based materials have been widely used in photocatalysis and other fields because of their rich redox pairs and oxygen vacancies, despite research on the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) remaining scare. However, most pristine cerium-based materials, such as CeO, are non-conductive materials. Therefore, how to obtain highly conductive and stable OER/ORR electrocatalysts is currently a hot research topic. To overcome these limitations, researchers have proposed a variety of strategies to promote the development of Ce-based electrocatalysts in recent years. This progress report focuses on reviewing new strategies concerning three categories of Ce-based electrocatalysts: metal-organic framework (MOF) derivatives, structure tuning, and polymetallic doping. It also puts forward the main existing problems and future prospects. The content of cerium in the crust is about 0.0046%, which is the highest among the rare earth elements. As a low-cost rare earth material, Ce-based materials have a bright future in the field of electrocatalysis due to replacing precious metal and some transition metals.
由于铈基材料具有丰富的氧化还原对和氧空位，它们已在光催化等领域得到广泛应用，尽管关于析氧反应（OER）和氧还原反应（ORR）的研究仍然很少。然而，大多数原始的铈基材料，如CeO，都是非导电材料。因此，如何获得高导电性和稳定的OER/ORR电催化剂是当前一个热门的研究课题。为了克服这些限制，近年来研究人员提出了多种策略来促进铈基电催化剂的发展。本进展报告重点综述了关于三类铈基电催化剂的新策略：金属有机框架（MOF）衍生物、结构调控和多金属掺杂。它还提出了主要存在的问题和未来前景。地壳中铈的含量约为0.0046%，在稀土元素中是最高的。作为一种低成本的稀土材料，铈基材料由于能够替代贵金属和一些过渡金属，在电催化领域有着光明的前景。
