Synthesis of highly dispersive platinum nanoparticles and their application in a hydrogen generation reaction
| Autor: | Erik Biehler, Julia M. Long, Qui Quach, Tarek M. Abdel-Fattah, Clay Huff |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Hydrogen Inorganic chemistry chemistry.chemical_element 02 engineering and technology Activation energy 010402 general chemistry 021001 nanoscience & nanotechnology Platinum nanoparticles 01 natural sciences Arrhenius plot 0104 chemical sciences Catalysis Reaction rate Sodium borohydride chemistry.chemical_compound Colloid and Surface Chemistry chemistry 0210 nano-technology Hydrogen production |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 610:125734 |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2020.125734 |
| Popis: | Platinum nanoparticles were successfully synthesized using beta-cyclodextrin and applied as a catalyst in the hydrogen generation reaction of sodium borohydride (NaBH4) and water. The resulting homogenous solution of nanoparticles was characterized using transmission electron microscopy (TEM) while a gravimetric water displacement system was used to measure the amount of hydrogen generated by the reaction. TEM characterization showed nanoparticles ranging in size from 2−4 nanometers in length with an average diameter of 3 nm. Platinum nanoparticles outperformed the uncatalyzed reaction displaying reaction rates as high as 1.30 mL·min-1·mLcat−1 under optimal environmental conditions of 303 K, with 925 μmol concentration of NaBH4 at a standard pH 7. Arrhenius plot calculations revealed an activation energy of 39.2 kJ/mol indicating promise for the future of homogeneous platinum nanoparticles as catalysts for hydrogen evolution reactions. |
| Databáze: | OpenAIRE |
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