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| Description
| - The supportless PtRh nanoclusters (Pt3Rh NC) were prepared using formic acid reductant. High-resolution transmission electron microscopy (HRTEM) showed individual particle sizes less than 7 nm, and energy-dispersive X-ray (EDX) analysis confirmed a 3:1 ratio of Pt and Rh. The as-prepared Pt3Rh NC exhibited an improved activity and durability toward electrocatalytic oxidation of methanol (MOR) and possesses greater CO tolerance than conventional PtRu and other Pt-based MOR catalysts. For comparison, the Vulcan carbon supported (Pt3Rh NC/VC) catalyst was prepared under identical conditions and used for MOR. The supportless Pt3Rh NC catalyst possessed mass activity of 1392.5 mA mg(-1) with an I-f/I-b ratio of 2.61, which is nearly 3-fold higher than the Pt3Rh NC/VC and also comparable to the benchmark MOR catalysts. The surface poisoning rate was found to be relatively smaller compared to the standard PtRu/C catalysts (delta = 0.0044% s(-1)). The activation energy for MOR was found to be 22.5 kJ mol(-1). The durability study for 4000 potential cycles in an acidic solution showed that nearly 78% of mass activity has been retained. The supportless Pt3Rh NC has much improved activity and stability compared to both Pt3Rh NC/VC and standard PtRu MOR catalysts. Therefore, the supportless Pt3Rh NC could be seen as a potential electrocatalyst for methanol oxidation due to high activity, enhanced stability, and diminished poisoning of the Pt surface, which is stabilized in the presence of Rh in nanocluster morphology.
- The supportless PtRh nanoclusters (Pt3Rh NC) were prepared using formic acid reductant. High-resolution transmission electron microscopy (HRTEM) showed individual particle sizes less than 7 nm, and energy-dispersive X-ray (EDX) analysis confirmed a 3:1 ratio of Pt and Rh. The as-prepared Pt3Rh NC exhibited an improved activity and durability toward electrocatalytic oxidation of methanol (MOR) and possesses greater CO tolerance than conventional PtRu and other Pt-based MOR catalysts. For comparison, the Vulcan carbon supported (Pt3Rh NC/VC) catalyst was prepared under identical conditions and used for MOR. The supportless Pt3Rh NC catalyst possessed mass activity of 1392.5 mA mg(-1) with an I-f/I-b ratio of 2.61, which is nearly 3-fold higher than the Pt3Rh NC/VC and also comparable to the benchmark MOR catalysts. The surface poisoning rate was found to be relatively smaller compared to the standard PtRu/C catalysts (delta = 0.0044% s(-1)). The activation energy for MOR was found to be 22.5 kJ mol(-1). The durability study for 4000 potential cycles in an acidic solution showed that nearly 78% of mass activity has been retained. The supportless Pt3Rh NC has much improved activity and stability compared to both Pt3Rh NC/VC and standard PtRu MOR catalysts. Therefore, the supportless Pt3Rh NC could be seen as a potential electrocatalyst for methanol oxidation due to high activity, enhanced stability, and diminished poisoning of the Pt surface, which is stabilized in the presence of Rh in nanocluster morphology. (en)
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| Title
| - Highly Active and Stable Pt3Rh Nanoclusters as Supportless Electrocatalyst for Methanol Oxidation in Direct Methanol Fuel Cells
- Highly Active and Stable Pt3Rh Nanoclusters as Supportless Electrocatalyst for Methanol Oxidation in Direct Methanol Fuel Cells (en)
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| skos:prefLabel
| - Highly Active and Stable Pt3Rh Nanoclusters as Supportless Electrocatalyst for Methanol Oxidation in Direct Methanol Fuel Cells
- Highly Active and Stable Pt3Rh Nanoclusters as Supportless Electrocatalyst for Methanol Oxidation in Direct Methanol Fuel Cells (en)
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| skos:notation
| - RIV/61989592:15310/14:33151737!RIV15-MSM-15310___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(ED2.1.00/03.0058), P(EE2.3.30.0004)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
| - Kasibhatta, Kumara Ramanatha Datta
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/14:33151737
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - durability; activation energy; mass activity; methanol oxidation; PtRh nanoclusters (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Kasibhatta, Kumara Ramanatha Datta
- Balaji, Subramanian
- Eswaramoorthy, Muthusamy
- Narayanamoorthy, Bhuvanendran
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| http://linked.open...ain/vavai/riv/wos
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
| |
| http://localhost/t...ganizacniJednotka
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