摘要
直接乙醇燃料电池(DEFCs)由于乙醇(C2H5OH)能量密度高、燃料来源广泛且价格便宜等优点,已经成为未来新能源电动汽车和便携式电源等的最佳选择之一。铂(Pt)基纳米材料是DEFCs阳极催化反应中应用最广泛的催化剂之一,但活性低、储量少等问题阻碍了其商业化应用。因此,开发非Pt基电催化剂对于DEFCs的发展起着至关重要的作用。近年来,钯(Pd)基纳米催化剂因具有与Pt相近的电子结构和晶体结构,在乙醇氧化反应(EOR)中备受关注。本文主要介绍Pd基纳米材料液相可控制备的研究进展,并基于材料的结构、形貌和组分探究其对催化乙醇氧化机制的影响。
Direct ethanol fuel cell (DEFCs) has been considered as one of the most promising energy conversion devices for new energy electric vehicles and portable power sources. This is because ethanol (C2H5OH) possesses many advantages as a fuel, including high energy density, wide fuel sources and low price. Platinum (Pt)-based nanomaterials are one of the most widely used catalysts in anodic catalytic reaction, but its low activity and reserves have hindered their commercial application. Therefore, it is critical approach to design and prepare non-Pt based electrocatalysts for the devel-opment of DEFCs. In recent years, palladium (Pd)-based electrocatalysts have attracted more atten-tion in ethanol oxidation reaction (EOR) because of its similar electronic and crystal structure with Pt. This review mainly focuses on the research progress of liquid phase controllable preparations of Pd-based nanomaterials, and the influence on the catalytic oxidation mechanism of ethanol was also investigated based on the structure, morphology and composition of the materials.
出处
《物理化学进展》
2021年第3期168-180,共13页
Journal of Advances in Physical Chemistry
