Nanostructured OMO type Manganese Oxide – as Novel Support for Palladium towards Electrooxidation of Methanol and Ethylene Glycol

Nanostructured OMO type Manganese Oxide – as Novel Support for Palladium towards Electrooxidation of Methanol and Ethylene Glycol

Ramanujam Kannan Kulandaivelu Karunakaran Samuel Vasanthkumar

Department of Chemistry, Sona College of Technology, Salem – 636 005

School of Nanosciences and Technology, Karunya University, Coimbatore – 641 114

Department of Chemistry & Nanosciences and Technology, School of Science & Humanities, Karunya University, Coimbatore – 641 114

Corresponding Author Email: 
kumar2359@yahoo.com
Page: 
249-254
|
DOI: 
https://doi.org/10.14447/jnmes.v15i4.39
Received: 
31 January 2012
|
Accepted: 
12 March 2012
|
Published: 
19 July 2012
| Citation
Abstract: 

Octahedral molecular sieve type manganese oxide (OMO) was synthesized by the ultra sonic assisted hydrothermal method, and was subsequently used as supportive material for palladium (Pd) metal towards the electrooxidation of methanol and ethylene glycol. The Pd nanoparticles were coated on the OMO by insitu reduction method. Low quantity of 5% Pd metal was used and the electrocatalytic activity was studied. The prepared OMO and the OMO/Pd nanocomposite were characterized by powder X–ray diffractogram (XRD), Scanning Electron Microscopy (SEM), Energy dispersive X–ray spectroscopy (EDS) and electrochemical methods. These studies demonstrated that the OMO can act as a good catalyst supporting material. The OMO helps to enhance the catalytic activity of Pd metal by supplying the active oxygen, which is extracted from the electrolytic solution. The electrooxidation of EG shows improved catalytic activity.

Keywords: 

manganese oxide, palladium, electrooxidation, fuel cell, methanol oxidation

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgements

The authors thank the DST, India for provided the research fa-cilities under DST nanomission project. The authors express grati-tude to the authorities of Karunya University, Coimbatore, and Sona College of Technology, Salem, for their kind support.

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