Electroanalysis
Electroanalysis
4 years ago

Deposition of PdPtAu Nanoparticles on Hollow Nanospheres of Fe3O4 as a New Catalyst for Methanol Electrooxidation: Application in Direct Methanol Fuel Cell

Deposition of PdPtAu Nanoparticles on Hollow Nanospheres of Fe3O4 as a New Catalyst for Methanol Electrooxidation: Application in Direct Methanol Fuel Cell
Meissam Noroozifar, Sara Haghnegahdar
In this study, immobilized hollow nanospheres of Fe3O4 with Palladium, Platinum and Gold nanoparticles (Fe3O4HNS-PdPtAuNPs) was synthesized by hydrothermal and chemical reduction methods and characterized by various techniques such as field emission scanning electron microscopy, energy dispersive analysis of X-rays and elemental mapping images. The electrocatalytic activity of the modified glassy carbon electrode (GCE) with Fe3O4HNS-PdPtAuNPs (GCE/Fe3O4HNS-PdPtAuNPs) toward methanol electrooxidation was investigated by cyclic voltammetry and chronoamperometry in 1 M NaOH solution. According to the results, Fe3O4HNS-PdPtAuNPs catalyst demonstrated the highest efficiency for methanol electrooxidation in comparison with Fe3O4HNS-PdNPs, Fe3O4HNS-PtNPs, Fe3O4HNS-PdAuNPs, Fe3O4HNS-PtAuNPs and Fe3O4HNS-PdPtNPs. The value of electron transfer coefficient (α) and the ratio of current densities (If/Ib) for methanol oxidation on the Fe3O4HNS-PdPtAuNPs/GC catalyst were calculated 0.61 and 5.13, respectively. The reaction order was discovered to be 0.98 for CH3OH. A direct methanol fuel cell was developed with the suggested catalyst under several conditions.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/elan.201700124

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.