Catalyst Based on Palladium-Modified MIL-53(Al) Pyrolysate for ORR in Alkaline Media

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

ChemCatChem Pub Date : 2024-11-12 DOI:10.1002/cctc.202401538

K. Yu Vinogradov, R. V. Shafigulin, V. A. Davydov, Е. О. Tokranova, О. V. Korchagin, M. V. Radina, А. V. Sokolov, А. V. Bulanova

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引用次数: 0

Abstract

A catalyst for the oxygen reduction reaction (ORR) based on the metal-organic framework material MIL-53(Al) modified with palladium was synthesized. Its textural and morphological characteristics were studied using the method of adsorption porosimetry, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA-DSC). The electrocatalytic properties of the synthesized material in ORR were studied by voltammetry, using a rotating disk electrode. Corrosion resistance was studied in the CV mode. It was found that the synthesized catalyst is characterized by high corrosion resistance. The tolerance of synthesized catalyst Pyr_MIL-53(Al)_Pd to the methanol was studied. The obtained catalyst was studied in a membrane electrode assembly (MEA) formed by spraying an ionomer suspension onto a gas diffusion layer (GDL). The synthesized Pyr-MIL-53 (Al)_Pd and commercial platinum (60% Pt) (HiSPEC 9100) catalysts were compared in the cathode composition, and 10% PtM (M = Ni, Mo)/CNT catalysts were used on the anode. The power density of the FC (P) was calculated based on the obtained current-voltage curves. Based on the set of characteristics, the synthesized catalyst based on MIL-53 (AL) doped with palladium is superior in efficiency to the commercial platinum catalyst.

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来源期刊

ChemCatChem 化学-物理化学

CiteScore

8.10

自引率

4.40%

发文量

511

审稿时长

1.3 months

期刊介绍： With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.