电催化剂
双金属片
催化作用
化学工程
甲醇
材料科学
三元运算
镍
纳米材料
多孔性
钯
化学
纳米技术
有机化学
冶金
电极
复合材料
物理化学
程序设计语言
工程类
电化学
计算机科学
作者
Dongqiong Wang,Yangping Zhang,Kewang Zhang,Xiaomei Wang,Caiqin Wang,Zhuolin Li,Fei Gao,Yukou Du
标识
DOI:10.1016/j.jcis.2023.06.213
摘要
Bimetallic two-dimensional (2D) nanomaterials are widely used in electrocatalysis owing to their unique physicochemical properties, while trimetallic 2D materials of porous structures with large surface area are rarely reported. In this paper, a one-pot hydrothermal synthesis of ternary ultra-thin PdPtNi nanosheets is developed. By adjusting the volume ratio of the mixed solvents, PdPtNi with porous nanosheets (PNSs) and ultrathin nanosheets (UNSs) was prepared. The growth mechanism of PNSs was investigated through a series of control experiments. Notably, thanks to the high atom utilization efficiency and fast electron transfer, the PdPtNi PNSs have remarkable activity of methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR). The mass activities of the well-tuned PdPtNi PNSs for MOR and EOR were 6.21 A mg-1 and 5.12 A mg-1, respectively, much higher than those of commercial Pt/C and Pd/C. In addition, after durability test, the PdPtNi PNSs exhibited desirable stability with the highest retained current density. Therefore, this work provides a significant guidance for designing and synthesizing a new 2D material with excellent catalytic performance toward direct fuel cells applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI