Yu Juan, Fu Xiubing, Wang Haoqi, Lu Shun, Li Bing
Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environment Remediation, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China.
Radiation Technology Institute, Beijing Academy of Science and Technology, Beijing 100875, China.
Nanomaterials (Basel). 2025 Jun 18;15(12):949. doi: 10.3390/nano15120949.
In this paper, we use the facile approach for preparing novel, low-cost, efficient electrocatalysts for electrocatalytic water splitting. Interfacial engineering can significantly enhance the intrinsic performance of electrocatalysts. Herein, self-supporting FeOOH/NiFe-layered double hydroxide (LDH) nanosheet arrays were synthesized via hydrothermal and impregnation methods. The resulting FeOOH/NiFe-LDH can provide more active regions, which provide more active regions for co-reaction to proceed and accelerates electron transmit processes. Additionally, the amorphous FeOOH provides abundant active sites with low coordination, leading to excellent activity. The FeOOH/NiFe-LDH demonstrates remarkable two half-reaction electrocatalytic activity, along with excellent overpotentials of 168 mV (OER) and 155 mV (HER). This research introduces a sophisticated and scalable methodology for the creation of remarkably efficient and resilient alkaline conditions specifically designed for the HER and OER.
在本文中，我们采用简便的方法制备用于电催化水分解的新型、低成本、高效电催化剂。界面工程可显著提高电催化剂的本征性能。在此，通过水热法和浸渍法合成了自支撑的FeOOH/镍铁层状双氢氧化物（LDH）纳米片阵列。所得的FeOOH/NiFe-LDH能提供更多活性区域，为共反应的进行提供更多活性区域并加速电子传输过程。此外，无定形的FeOOH提供了丰富的低配位活性位点，从而具有优异的活性。FeOOH/NiFe-LDH表现出显著的双半反应电催化活性，以及168 mV（析氧反应）和155 mV（析氢反应）的优异过电位。本研究引入了一种复杂且可扩展的方法，用于创建专门为析氢反应和析氧反应设计的、在碱性条件下具有显著效率和韧性的体系。
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