Rapid synthesis of Palladium-Platinum-Nickel ultrathin porous nanosheets with high catalytic performance for alcohol electrooxidation

Dongqiong Wang; Yangping Zhang; Kewang Zhang; Xiaomei Wang; Caiqin Wang; Zhuolin Li; Fei Gao; Yukou Du

doi:10.1016/j.jcis.2023.06.213

Rapid synthesis of Palladium-Platinum-Nickel ultrathin porous nanosheets with high catalytic performance for alcohol electrooxidation

J Colloid Interface Sci. 2023 Nov 15;650(Pt A):350-357. doi: 10.1016/j.jcis.2023.06.213. Epub 2023 Jul 1.

Authors

Dongqiong Wang¹, Yangping Zhang¹, Kewang Zhang¹, Xiaomei Wang², Caiqin Wang³, Zhuolin Li¹, Fei Gao⁴, Yukou Du⁵

Affiliations

¹ College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.
² School of Chemical Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China. Electronic address: wangxiaomei@mail.usts.edu.cn.
³ College of Science, Nanjing Forestry University, Nanjing 210037, China.
⁴ School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China. Electronic address: gaofei006@just.edu.cn.
⁵ College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China. Electronic address: duyk@suda.edu.cn.

PMID: 37413869
DOI: 10.1016/j.jcis.2023.06.213

Abstract

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.

Keywords: 2D porous material; Electrocatalytic oxidation; PdPtNi nanosheets; Trimetallic nanocatalysts.