NOVELTY - The electrochemical device comprises a first electrode comprising a first substrate, a first porous conductive fabric layer (420) such as graphitized film formed on the first substrate and an electrochemical catalyst layer comprised of polymer-capped noble metal nanoclusters, a second electrode, and a separating membrane (440) disposed between the first and second electrodes. The porous conductive fabric layer is made of carbon fiber, and has a support portion and a porous portion overlying the support portion. The polymer-capped noble metal nanoclusters are adsorbed over a top surface.    USE - Used as an electrochemical device such as fuel cells or solar cells.    ADVANTAGE - The electrochemical device has high catalytic effect and stability, and can be economically fabricated with good performance, high mass production and less power consumption.    DETAILED DESCRIPTION - The electrochemical device comprises a first electrode comprising a first substrate, a first porous conductive fabric layer (420) such as graphitized film formed on the first substrate and an electrochemical catalyst layer comprised of polymer-capped noble metal nanoclusters, a second electrode, and a separating membrane (440) disposed between the first and second electrodes. The porous conductive fabric layer is made of carbon fiber, and has a support portion and a porous portion overlying the support portion. The polymer-capped noble metal nanoclusters are adsorbed over a top surface and/or within pores of the porous conductive fabric layer. The first electrode further comprises a conditioner layer formed on the porous conductive fabric layer and grabbing the polymer capped noble metal nanoclusters. The first substrate is a plastic substrate, a conductive substrate or a non-conductive substrate and a flexible substrate. The support portion is a copolymer made from the graphite and a polymer. The second electrode comprises a second substrate, a dye-impregnated oxide layer (430) formed on the second substrate, and porous conductive fabric layer disposed between the substrate and the dye-impregnated oxide layer.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of an electrochemical device.    Cathode (400)    Porous conductive fabric layer (420)    Dye-impregnated oxide layer (430)    Separating member (440)    Anode. (450)