NOVELTY - Preparing polymer composite involves preparing metal nanowire decorated carbon allotropes; and dispersing the allotropes in polymer matrix.    USE - For preparing polymer composite containing metal nano wire decorated carbon allotropes (claimed) which are useful as catalysts for chemical transformations, energy absorbing materials and energy dissipating materials; selective gas and chemical sensors; and an antimicrobial agent. Also useful for organic transformations, fuel cells, catalytic polymerization, catalytic membranes, heat sensing membranes, gas selective permeable membranes and heat sensitive detecting membranes.    ADVANTAGE - The materials with improved mechanical properties such as thermal conductivity, can be created by dispersing metal nano wire decorated carbon allotropes in polymer matrix. The present method utilizes carbon allotropes as anchors on which to grow surface metallic nanowires and to alleviate processing problems encountered with pure nanowire additives in polymeric matrices. The method provides versatile way of producing metallic nanowires of controlled diameter sizes and distribution density on the surface of carbon allotropes. The net result is that the nanowire density and the nanowire-to-carbon allotrope ratio can be adjusted to adjust the properties needed for specific applications. The method allows for creation of metallic nanowire decorated carbon allotropes using readily available chemicals, modest reaction temperatures and time, ease of process and isolation, common laboratory equipment, and easy scale-up. The resulting metal nanowire decorated carbon allotropes are useful in and of themselves as catalysts for a variety of chemical processes, and can also be combined with polymeric or other materials to improve certain physical, mechanical and/or electrical properties.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for polymer composite comprising metal nano wire decorated carbon allotropes dispersed in polymer matrix.