TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The heat treating step further comprises: a first heat treatment process conducted under an inert atmosphere; and a second heat treatment process conducted under an oxygen-containing atmosphere. The first heat treatment process is conducted at 300degreesC to a melting point of a metal included in the coordination polymer. The second heat treatment process is conducted at 300-1500degreesC. Preferred Components: The coordination polymer comprises metal compound having a structure of formula (MxLyS1z). The coordination polymer forms a network by connecting metal ions with the multi-dentate ligand. The multi-dentate ligand is trimesatebased ligands having the structure of formula (IV), terephthalate-based ligands having the structure of formula (V), 4,4'-bipyridine-based ligands having the structure of formula (VI), 2,6-naphthalenedicarboxylate-based ligands having the structure of formula (VII) and/or pyrazinebased ligands having the structure of formula (VIII).M = metals such as transition metals, Group 13 metals, Group 14 metals, Group 15 metals, lanthanides and/or actinides (preferably iron, platinum, cobalt, cadmiun, copper, titanium, vanadium, chromium, manganese, nickel, silver, palladium, ruthenium, molybdenum, zirconium, niobium, lanthanum, indium, tin, lead and/or bismuth);L = a multi-dentate ligand capable of forming ionic or covalent bonds with at least two metal ions;S1 = a mono-dentate ligand capable of forming an ionic or covalent bond with one metal ion;x, y, z = integers satisfying the condition of (yd+z is greater than or equal to 6x);d = a number of functional groups of L capable of binding to a metal ion; andR1-R25 = 1-20C alkyl, 1-20C alkoxy, 2-20C alkenyl, 6-30C aryl, 6-30C aryloxy, 2-30C heteroaryl, 2-30C heteroaryloxy (all optionally substituted), H, halo and/or OH. EXAMPLE - Nickel (II) acetate tetrahydrate (14.93 g), cobalt (II) acetate tetrahydrate (3.73 g) and trimesic acid (9.98 g) were added to distilled water (500 ml) and stirred at 55degreesC for 2 hours. Powders produced in the solution were removed using a nylon filter, washed with distilled water and then dried at 80degreesC for 12 hours to obtain a needle-shaped coordination polymer crystal. The obtained crystalline coordination polymer was subjected to a heat treatment process under an argon atmosphere at 900degreesC for 1 hour to prepare a carbon-(nickel,cobalt) composite. The carbon-(nickel, cobalt) composite was subjected to a heat treatment process at 700degreesC for 1 hour to give a porous nickel material of formula (Ni0.8Co0.2O).