Two-dimensional (2D) noble-metal-based nanomaterials have attracted tremendous attention and have widespread promising applications as a result of their unique physical, chemical, and electronic properties. Especially, 2D Pt- and Pd-based intermetallic nanoplates (IMNPs) and nanosheets (IMNSs) are widely studied for fuel cell (FC)-related reactions, including the cathodic oxygen reduction reaction (ORR) and anodic formic acid, methanol and ethanol oxidation reactions (FAOR, MOR and EOR). Wet-chemistry synthesis is a powerful strategy to prepare metallic nanocrystals with well-controlled dispersity, size, and composition. In this review, a fundamental understanding of the FC-related reactions is firstly elaborated. Subsequently, the current wet-chemistry synthesis pathways for 2D Pt- and Pd-based IMNPs and IMNSs are briefly summarized, as well as their electrocatalytic applications including in the ORR, FAOR, MOR, and EOR. Finally, we provide an overview of the opportunities and current challenges and give our perspectives on the development of high-performance 2D Pt- and Pd-based intermetallic electrocatalysts towards FCs. We hope this review offers timely information on the synthesis of 2D Pt- and Pd-based IMNPs and IMNSs and provides guidance for the efficient synthesis and application of them.
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机译:二维(2 d) noble-metal-based纳米材料引起了巨大的关注,有广泛的应用前景由于其独特的物理、化学和电子性质。Pd-based金属间化合物nanoplates (IMNPs)和nanosheets (IMNSs)被广泛研究了燃料细胞(FC)有关的反应,包括(ORR)和阴极氧还原反应阳极甲酸、甲醇和乙醇氧化反应(有利,铁道部和三次采油)。湿化学合成是一个强大的战略制备金属纳米晶体控制分散度、大小和组成。理解FC-related反应首先阐述了。为2 d Pt和湿化学合成途径Pd-based IMNPs和IMNSs简要总结,以及他们electrocatalytic应用程序最后,我们提供的概述和当前的挑战,给我们机会视角的发展高性能的2 d Pt - Pd-based金属间化合物对FCs electrocatalysts。希望本文提供及时的信息合成的2 d Pt - Pd-based IMNPs IMNSs高效的合成,并提供指导和应用程序。
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