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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.51A [2012] >
IJC-A Vol.51A(05) [May 2012] >
| Title: | Study of sulphonic acid functionalization of Vulcan XC-72 carbon black support of Pt/Vulcan XC-72 catalyst for methanol electrooxidation |
| Authors: | Chandravathanam, Sundar
Kavitha, B
Viswanathan, Balasubramanian
Thangam, Y Yesu |
| Keywords: | Catalysts
Sulphonated catalysts
Electrooxidation
Cyclic voltammetry
Methanol oxidation
Sulphonic acid
Platinum |
| Issue Date: | May-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Sulphonic acid groups have been grafted onto the surface of Vulcan XC-72
carbon of the Pt/Vulcan XC-72 catalyst to
improve platinum utilization in methanol electrooxidation studies. The
sulphonic acid modification has been carried out by reacting the Pt/Vulcan
XC-72 catalyst with formaldehyde and sodium sulfite. The resultant sulphonated
catalysts are characterized by
X-ray diffraction, Fourier transform infrared spectroscopy and cyclic
voltammetry. FT-IR spectra confirm the incorporation of the sulphonic acid
group on the carbon black support of the catalyst. XRD shows better dispersion
of the Pt nanoparticles upon sulphonic acid modification. The electrochemical
measurement using cyclic voltammetry shows enhanced activity for methanol
electrooxidation for the sulphonic acid modified catalyst as compared to the
unmodified one. |
| Page(s): | 704-707 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.51A(05) [May 2012]
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