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- W2240717595 abstract "The electrocatalytic performance of novel Pt-NiTiO3/C catalyst for the oxygen reduction reaction (ORR) is investigated for the first time. The cathode has been synthesized in a two-step procedure. Firstly, the NiTiO3 co-catalyst is obtained via a wet-chemical method. Then, 20% Pt-NiTiO3/C electrocatalysts (Pt:NiTiO3 ratio of 1:1 at. %) is prepared by irradiating a mixture of NiTiO3, Vulcan and Pt precursor for 4 min in a microwave apparatus. As a reference, a 20% Pt/C catalyst has been synthesized by the same procedure. XRD analysis confirmed a crystalline NiTiO3 with particle size between 25–40 nm. It also indicates the formation of nanostructured Pt-NiTiO3/C having a Pt particle size of less than 2 nm. TEM results show the formation of homogenously dispersed Pt nanoparticles, with particle size of 2.3 nm. The linear scan voltammograms show a performance for the ORR of Pt-NiTiO3/C as high as that of Pt/C in KOH. The results suggest that the reaction proceeds following a four-electron transfer mechanism. Moreover, the mass and specific activities of Pt-NiTiO3/C are the same as those of Pt/C, demonstrating good performance with less Pt. Furthermore, ORR selectivity tests show an enhanced tolerance of Pt-NiTiO3/C to 0.1 M methanol, compared to Pt/C." @default.
- W2240717595 created "2016-06-24" @default.
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- W2240717595 date "2015-10-31" @default.
- W2240717595 modified "2023-10-15" @default.
- W2240717595 title "Evaluation of the Nickel Titanate-Modified Pt Nanostructured Catalyst for the ORR in Alkaline Media" @default.
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- W2240717595 doi "https://doi.org/10.1149/2.0161602jes" @default.
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