TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The metal inorganic salt is soluble inorganic metal salts of IVB, VB, VIB, VIIB, VIII, IB and/or IIB group. The soluble inorganic salt is nitrate, carbonate, sulfate, acetate, halide, dinitroso diamine salt, acetylacetonate or macrocyclic complex of porphyrin, phthalocyanine or its polymer. The metal inorganic salt is ferrous, cobalt, nickel, copper, zinc, iridium, vanadium, chromium, manganese, zirconium, tungsten and/or titanium. The nitride atmosphere is 5-90% ammonia/nitrogen mixed gas, ammonia, acetonitrile and/or hydrogen cyanide. The inert gas is mixed gas of nitrogen, argon gas and/or carbon dioxide gas. Preferred Method: The drying method comprises carbon dioxide supercritical drying process, vacuum drying process or freeze-drying process, in which carbon dioxide supercritical drying process is carried out at 40-55 degrees C under 11-16 Mpa condition to obtain gas gel, the vacuum drying process is carried out at 50-90 degrees C under -0.1 to -0.09 Mpa condition to obtain dry gel, and the freeze-drying process is carried out at lower than solvent freezing point temperature under atmospheric pressure to obtain frozen gel.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The metal organic compound is metal organic compound of IVB, VB, VIB, VIIB, VIII, IB, IIB and/or III B group. The metal organic compound includes metal organic complex, a metal cluster, metal aromatic compound, metal halide, metal alkoxide, metal phenate, metal ether salt, metal organic heterocyclic compound, metal organic chelate comprising metal carboxylate and carboxylic acid derivatives, metal lipid compound or nitrogen-containing organic metal compound. The coordination compound includes ketones, alcohols, amine compound, tetrahydrofuran, bipyridine, halogen, cyano compound, sulfur thiocyanate compound, oxalate compound, ammonium hydroxide or its derivatives, thiosulfate compound and/or nitro compound. The solvent Q is water, 1-5C alcohol, 3-8C ketones and/or 3-8C ether. The solvent P is water, ethanol or ethylene glycol. The solvent is water, when the environment temperature is 20-80 degrees C, the solvent is ethanol, when the environment temperature is 20-78 degrees C, the solvent is isopropanol, when the environment temperature is 20-82 degrees C, or the solvent is ethylene glycol, when the environment temperature is 60-100 degrees C.