Li Xinyue, Song Yahui, Huang Yiming, Zhang Jihui, Wu Siyu, Zhang Wentao, Wang Jin, Zhang Xian
School of Materials Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
Molecules. 2025 May 27;30(11):2343. doi: 10.3390/molecules30112343.
MoS has emerged as a highly promising catalyst for the hydrogen evolution reaction (HER) owing to its exceptional catalytic properties. However, there is a pressing need to further enhance its reactivity and integrate oxygen evolution reaction (OER) capabilities to facilitate its industrial implementation. In this context, a dual-metal doping approach presents a straightforward and effective strategy to achieve superior catalytic performance. Systematic characterization and electrochemical evaluations reveal that the synergistic effects of Co and Fe doping significantly enhance both HER and OER activities, demonstrating remarkable potential for practical applications in energy conversion and storage systems. The unique flower-like architecture of the material endows it with a substantially enlarged surface area, which significantly increases the exposure of active sites and facilitates enhanced catalytic activity. Specifically, it achieves the low overpotentials of -127 and 292 mV at 10 mA cm for HER and OER in alkaline media, respectively, and demonstrates excellent stability over a 10 h test. This research provides valuable insights into the development of advanced materials capable of efficiently performing both HER and OER processes, paving the way for potential applications in sustainable energy technologies.
由于其卓越的催化性能，二硫化钼已成为析氢反应（HER）极具前景的催化剂。然而，迫切需要进一步提高其反应活性并整合析氧反应（OER）能力，以促进其工业化应用。在此背景下，双金属掺杂方法是实现卓越催化性能的直接有效策略。系统表征和电化学评估表明，钴和铁掺杂的协同效应显著提高了HER和OER活性，在能量转换和存储系统的实际应用中显示出巨大潜力。该材料独特的花状结构使其具有大幅增大的表面积，显著增加了活性位点的暴露并促进了催化活性的增强。具体而言，在碱性介质中，HER和OER在10 mA cm时分别实现了-127和292 mV的低过电位，并在10小时测试中表现出优异的稳定性。这项研究为开发能够高效进行HER和OER过程的先进材料提供了有价值的见解，为可持续能源技术的潜在应用铺平了道路。
