Zhang Ziqi, Li Yiduo, Zhang Zhe, Zheng He, Liu Yuxin, Yan Yuxing, Li Chunguang, Lu Haiyan, Shi Zhan, Feng Shouhua
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 P. R. China
Chem Sci. 2022 Jul 5;13(30):8876-8884. doi: 10.1039/d2sc02845j. eCollection 2022 Aug 4.
Electrochemical modification is a mild and economical way to prepare electrocatalytic materials with abundant active sites and high atom efficiency. In this work, a stable NiFeCuPt carbon matrix deposited on nickel foam (NFFeCuPt) was fabricated with an extremely low Pt load (∼28 μg cm) using one-step electrochemical co-deposition modification, and it serves as a bifunctional catalyst for overall water splitting and achieves 100 mA cm current density at a low cell voltage of 1.54 V in acidic solution and 1.63 V in alkaline solution, respectively. In addition, a novel electrolyte was developed to stabilize the catalyst under acidic conditions, which provides inspiration for the development of highly efficient, highly stable, and cost-effective ways to synthesize electrocatalysts.
电化学修饰是一种温和且经济的方法，用于制备具有丰富活性位点和高原子效率的电催化材料。在这项工作中，通过一步电化学共沉积修饰制备了一种负载极低Pt（约28 μg cm）的稳定的沉积在泡沫镍上的NiFeCuPt碳基体（NFFeCuPt），它作为一种用于全水分裂的双功能催化剂，在酸性溶液中于1.54 V的低电池电压下以及在碱性溶液中于1.63 V的低电池电压下分别实现了100 mA cm的电流密度。此外，还开发了一种新型电解质以在酸性条件下稳定催化剂，这为开发高效、高稳定性和成本效益高的电催化剂合成方法提供了灵感。
