Enhanced stability and efficiency of Pd electrocatalysts towards electrooxidation of ethanol using CNT–CNF supporting materials
Source abstract
Abstract
Abstract Pd electrocatalysts supported on carbon nanotubes (CNTs) and carbon nanofibres (CNFs) and their combination thereof were evaluated for their effective ethanol oxidation reaction. The electrocatalysts (namely Pd/CNT, Pd/CNF and Pd/CNT-CNF) were synthesized and characterized using BET, TEM, XRD, TGA and Raman spectroscopy techniques. Electrochemical characterization using cyclic voltammetry in the presence of [Fe(CN)6]3/−4 redox probe showed that the electrocatalysts exhibited excellent current response on glassy carbon electrode in the order of Pd/CNT > Pd/CNF > Pd/CNT-CNF. In contrast, in alkaline ethanolic solution, the order of oxidative current response was Pd/CNF < Pd/CNT < Pd/CNT-CNF, implying better electrocatalytic activity for the ternary electrocatalysts. The superiority of Pd/CNT-CNF over other electrocatalysts was further revealed using chronoamperometry (current density: 51.52, 13.31 and 11.25 mA cm−2 for Pd/CNT-CNT, Pd/CNF and Pd/CNT, respectively). Furthermore, the ternary electrocatalysts demonstrated excellent stability after 1500 cycles, making it attractive as a durable electrode for fuel cell technology development. Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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