2023
DOI: 10.3390/catal13010161
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PtM/CNT (M = Mo, Ni, CoCr) Electrocatalysts with Reduced Platinum Content for Anodic Hydrogen Oxidation and Cathodic Oxygen Reduction in Alkaline Electrolytes

Abstract: Bimetallic catalysts containing platinum and transition metals (PtM, M = Mo, Ni, CoCr) were synthesized on carbon nanotubes (CNTs) functionalized in an alkaline medium. Their platinum content is 10–15% by mass. PtM/CNTNaOH are active in both the hydrogen oxidation reaction (HOR) and the oxygen reduction reaction (ORR) in alkaline electrolytes. Although catalysts based on a single transition metal are inactive in the HOR, their activity in the cathode process of ORR increases relative to CNTNaOH. When using the… Show more

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Cited by 8 publications
(1 citation statement)
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“…Based on XPS data, the 10PtMo/CNT N catalyst predominantly contains platinum in the metallic state, as well as in the form of an oxide ( Figure 2 ). Conversely, molybdenum was found only in the oxidized state as MoO 3 , which can be attributed to its highly negative redox potential, which is consistent with previous findings [ 31 ]. The surface concentration of metal amounted to 0.36% (Pt) and 0.16% (Mo).…”
Section: Resultssupporting
confidence: 92%
“…Based on XPS data, the 10PtMo/CNT N catalyst predominantly contains platinum in the metallic state, as well as in the form of an oxide ( Figure 2 ). Conversely, molybdenum was found only in the oxidized state as MoO 3 , which can be attributed to its highly negative redox potential, which is consistent with previous findings [ 31 ]. The surface concentration of metal amounted to 0.36% (Pt) and 0.16% (Mo).…”
Section: Resultssupporting
confidence: 92%