NOVELTY - Energy-harvesting article (1) comprises multi-layered body containing: two textile units (2), each having thin metal sheet (21) and leather sheet (22) covering the metal sheet, where the leather sheet includes non-woven fabric substrate and leather coating layer; first adhesive layer (3) disposed between and interconnecting the metal sheets; and two second adhesive layers, each disposed between and interconnecting thin metal sheet and leather sheet of respective textile units, where each of non-woven fabric substrate and leather coating layer includes a catalytic composition having e.g. EDTA.    USE - The energy-harvesting article is useful: in residential and industrial conservation of energy in gas pipes, exhaust pipes, air conditioning pipes, or natural gas pipes; for transportation conservation of energy in vehicle fuel exhaust pipes or vehicle natural gas pipes; for energy disposal and delivery; in boiler/cogeneration energy enhancement; for generation of alternative energy in the field of feasible global renewable energy; and in purification of special gas of semiconductor.    ADVANTAGE - The energy-harvesting article: improves energy efficiency; achieves energy conservation; reduces greenhouse gas emission; promotes yield of wafer; and decreases pipe corrosion.    DETAILED DESCRIPTION - Energy-harvesting article (1) comprises a multi-layered body that includes: two textile units (2), each having a thin metal sheet (21) and a leather sheet (22) covering the thin metal sheet, where the leather sheet includes a non-woven fabric substrate and a leather coating layer; a first adhesive layer (3) disposed between and interconnecting the thin metal sheets of the textile units; and two second adhesive layers, each disposed between and interconnecting the thin metal sheet and the leather sheet of respective textile units, where each of the non-woven fabric substrate and the leather coating layer includes a catalytic composition containing peppermint oil, lemon oil, rhubarb powder, rice flour, EDTA, polyoxyethylene sorbitan monooleate, glyceryl monostearate, polyethylene glycol-100 stearate, aromatizer and dyes, and the catalytic composition is mixed with water and is stored at room temperature to obtain an organic hydrate.    DESCRIPTION OF DRAWING(S) - The figure illustrates a sectional view of an energy-harvesting article.    Energy-harvesting article (1)    Textile units (2)    First adhesive layer (3)    Thin metal sheet (21)    Leather sheet (22)