期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 360, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2022.119363
关键词
Aerogel; Hydrogel; Electrocatalyst; Ethanol electrooxidation; One-pot synthesis
A new and simple method for synthesizing self-supported three-dimensional Pd aerogel utilizing formaldehyde as a reducing agent in an alkaline medium was introduced for the first time. The Pd aerogel exhibited superior electrocatalytic activity and enhanced durability towards ethanol electrooxidation, attributed to its unique morphology and numerous open interconnected pores.
A new, straightforward, and one-step method to synthesize self-supported three-dimensional (3D) Pd aerogel utilizing formaldehyde as a reducing agent in an alkaline medium was introduced for the first time in this research. The physicochemical properties investigation of Pd aerogel was conducted using x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) analyses. The electrocatalytic activity of prepared self-assembled nanoarchitecture toward ethanol electrooxidation was examined utilizing cyclic voltammetry (CV) and chronoamperometry (CA). The Pd aerogel on account of the unique morphology and numerous open interconnected pores revealed superior electrocatalytic activity (1016 mAmg-1pd) and enhanced durability toward ethanol electrooxidation in comparison to Pd/C nanocatalyst (281 mAmg-1pd). The larger electrochemical active surface area of the Pd aerogel catalyst (79.14 m2 g-1) led to a boost in current density in the electrooxidation of ethanol in comparison to the Pd/C catalyst (12.34 m2 g-1). We believe that our unique method can be used as a fast and powerful method for the synthesis of used catalysts in various energy-related systems. (c) 2022 Elsevier B.V. All rights reserved.
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