Monodisperse thiourea functionalized graphene oxide-based PtRu nanocatalysts for alcohol oxidation
| Autor: | Aysegul Iyidogan, Su Selda Polat, Hakan Burhan, Sibel Demiroglu Mustafov, Esra Kuyuldar, Fatih Şen |
|---|---|
| Přispěvatelé: | Kuyuldar, Esra, Polat, Su Selda, Burhan, Hakan, Mustafov, Sibel Demiroğlu |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Enhanced Electrocatalytıc Actıvıty Oxide lcsh:Medicine 02 engineering and technology 010402 general chemistry Heterogeneous catalysis 01 natural sciences Article Catalysis law.invention chemistry.chemical_compound X-ray photoelectron spectroscopy law One-Pot Synthesıs Methanol-Oxıdatıon lcsh:Science Hıghly Effıcıent Energy Multidisciplinary Graphene lcsh:R Facıle Synthesıs 021001 nanoscience & nanotechnology Carbon-Paste Electrode At-Go Nanomaterial-based catalyst 0104 chemical sciences Chemical engineering Thiourea chemistry Alcohol oxidation Black Hybrıd Materıal lcsh:Q Sensıtıve Voltammetrıc Sensor 0210 nano-technology Dımethylamıne-Borane |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Addressed herein, thiourea functionalized graphene oxide-based PtRu nanocatalysts (PtRu@T/GO) has been synthesized and characterized by several techniques and performed for methanol oxidation reactions as novel catalysts. In this study, graphene oxide (GO) was functionalized with thiourea (T/GO) in order to obtain monothiol functionalized graphene and increase the stability and activity of the nanocatalysts. Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), TEM (transmission electron microscopy) and high-resolution transmission electron microscopy (HR-TEM) were used for characterization of the prepared nanocatalysts. The results obtained from these techniques showed that the prepared nanocatalysts were in a highly crystalline form, well dispersed on T/GO, very small in size and colloidally stable. The average size of the synthesized nanocatalysts determined by TEM analysis was found to be 3.86 ± 0.59 nm. With HR-TEM analysis, the atomic lattice fringes of the nanocatalysts were calculated to be 0.23 nm. After the full characterization of the prepared nanocatalysts, they were tried for the methanol oxidation reaction (MOR) and it was observed that 97.3% of the initial performance was maintained even after 1000 cycles while exhibiting great catalytic activity and stability with the help of T/GO. Thus, the arranged nanocatalysts displayed great heterogeneous catalyst characteristics for the methanol oxidation response. |
| Databáze: | OpenAIRE |
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