Zhang Wang, Zhou Kun
School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore, Singapore.
Small. 2017 Aug;13(32). doi: 10.1002/smll.201700806. Epub 2017 Jun 28.
Water oxidation, also known as the oxygen evolution reaction (OER), is a crucial process in energy conversion and storage, especially in water electrolysis. The critical challenge of the electrochemical water splitting technology is to explore alternative precious-metal-free catalysts for the promotion of the kinetically sluggish OER. Recently, emerging two-dimensional (2D) ultrathin materials with abundant accessible active sites and improved electrical conductivity provide an ideal platform for the synthesis of promising OER catalysts. This Review focuses on the most recent advances in ultrathin 2D nanostructured materials for enhanced electrochemical activity of the OER. The design, synthesis and performance of such ultrathin 2D nanomaterials-based OER catalysts and their property-structure relationships are discussed, providing valuable insights to the exploration of novel OER catalysts with high efficiency and low overpotential. The potential research directions are also proposed in the research field.
水氧化，也称为析氧反应（OER），是能量转换和存储中的一个关键过程，特别是在水电解中。电化学水分解技术的关键挑战是探索替代的无贵金属催化剂，以促进动力学上缓慢的析氧反应。最近，具有丰富可及活性位点和改善的导电性的新兴二维（2D）超薄材料为合成有前景的析氧反应催化剂提供了理想平台。本综述重点关注超薄二维纳米结构材料在增强析氧反应电化学活性方面的最新进展。讨论了此类基于超薄二维纳米材料的析氧反应催化剂的设计、合成和性能及其性能-结构关系，为探索具有高效率和低过电位的新型析氧反应催化剂提供了有价值的见解。还提出了该研究领域的潜在研究方向。
