Phosphomolybdate has been employed simultaneously as the oxidizing agent for the monomer polymerization and the reduced polyoxometalate is used as reducing agent for the reduction of metal ions. The composites thus obtained have been characterized and may have many potential applications.

Pilli Satyananda Kishore

Balasubramanian Viswanathan

Thirukkallam Kanthadai Varadarajan

ORGANIC-INORGANIC HYBRID NANOCOMPOSITES

oxidizing agent

PHOSPHOMOLYBDATE

Polyoxometalates

REDUCING AGENT

Conducting polymers

Metal ions

Nanoparticles

Polymerization

reduction

Synthesis (chemical)

Composite materials

Fulltext

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Nanoscale Research Letters

The electronically conducting hybrid material based on transition metal oxide and conducting polymer has been used as the catalyst support for Pt nanoparticles. The Pt nanoparticles loaded hybrid organic (polyaniline)-inorganic (vanadium pentoxide) composite has been used as the electrode material for methanol oxidation, a reaction of importance for the development of direct methanol fuel cells (DMFC). The hybrid material exhibited excellent electrochemical and thermal stability in comparison to the physical mixture of conducting polymer and transition metal oxide. The Pt nanoparticles loaded hybrid material exhibited high electrocatalytic activity and stability for methanol oxidation in comparison to the Pt supported on the Vulcan XC 72R carbon support. The higher activity and stability is attributed to the better CO tolerance of the composite material. © 2004 Elsevier B.V. All rights reserved.

Journal of Power Sources

Electronically conducting hybrid material as high performance catalyst support for electrocatalytic application

The electrochemical synthesis of conducting nanocones of Pt incorporated poly(3-methyl) thiophene, employing alumina membrane templates and its use as an electrode material for methanol oxidation is reported. The activity (131mA/cm2 at +0.4V versus Ag/AgCl for a Pt loading of 80μg/cm2) of nanocone-based electrode was found to be more than one order of magnitude higher compared to the regular poly(3-methyl) thiophene electrode (12.2mA/cm2 at +0.4V versus Ag/AgCl for a Pt loading of 80μg/cm2). The chronoamperometric response confirms the better activity and stability of the nanocone-based electrode compared to the commercial 20wt.% Pt/C (E-TEK) and template-free electrode. The XPS data confirmed the presence of Pt in the metallic state. The nanocone morphology of poly(3-methyl) thiophene, helps in the effective dispersion of Pt particles facilitating the easier access of methanol to the catalytic sites. © 2004 Elsevier B.V. All rights reserved.

Pt particles supported on conducting polymeric nanocones as electro-catalysts for methanol oxidation

Tetrahedron Letters

Template synthesis of polyaniline/Pd nanoparticle and its catalytic application

Langmuir

Micelle-Assisted One-Pot Synthesis of Water-Soluble Polyaniline−Gold Composite Particles

Nature

A class of non-precious metal composite catalysts for fuel cells

Synthesis and characterization of metal nanoparticle embedded conducting polymer-polyoxometalate composites

Journal	Nanoscale Research Letters
ISSN	19317573
Open Access	Yes