Jump to main content
Jump to site search

Issue 12, 2014
Previous Article Next Article

Microwave assisted synthesis and characterization of silicon and phosphorous co-doped carbon as an electrocatalyst for oxygen reduction reaction

Author affiliations

Abstract

Doped carbon materials have gained a lot of attention recently due to their wide array of applications. These doped carbon materials have a tremendous potential to replace expensive metal based electrocatalysts in fuel cells. A recently established microwave assisted technique, which does not make use of any inert or reducing gases, has been used to synthesize novel silicon (Si), phosphorous (P) co-doped carbon (SiPDC), as yet not reported in the literature. The method is simple, rapid and economical. Tannin, a renewable resource material is chosen as the carbon source, polyphosphoric acid is utilized as the dehydrating agent/P source and silicone oil is chosen as the Si source. Brunauer–Emmett–Teller analysis reveals the surface area of SiPDC to be 641.51 m2 g−1 and X-ray photoelectron spectroscopy confirms the doping of Si and P at 8.80% and 4.20% respectively. The doped carbon material is utilized for oxygen reduction reaction (ORR) in 0.1 M KOH. The mechanism of ORR is found to be a four electron reduction process based on rotating disk electrode studies. Electrochemical stability studies are performed to evaluate the effectiveness of the catalyst for practical applications.

Graphical abstract: Microwave assisted synthesis and characterization of silicon and phosphorous co-doped carbon as an electrocatalyst for oxygen reduction reaction

Back to tab navigation

Publication details

The article was received on 12 Nov 2013, accepted on 17 Dec 2013 and first published on 09 Jan 2014


Article type: Paper
DOI: 10.1039/C3RA46621C
Citation: RSC Adv., 2014,4, 6306-6313
  •   Request permissions

    Microwave assisted synthesis and characterization of silicon and phosphorous co-doped carbon as an electrocatalyst for oxygen reduction reaction

    S. K. Ramasahayam, U. B. Nasini, V. Bairi, A. U. Shaikh and T. Viswanathan, RSC Adv., 2014, 4, 6306
    DOI: 10.1039/C3RA46621C

Search articles by author

Spotlight

Advertisements