Carbonization behavior of the acrylic cation exchange resin with zinc ion was investigated as a function of the introduced amount of zinc ion, carbonization temperature (773-1073K) and the atmospheric gas (CO
2, H
2, N
2) during the carbonization. The carbonization of the resin that occurs along with liquefaction of the resin in the absence of zinc shifted to solid phase carbonization according on the increase of introduced zinc ion. The resins carbonized in CO
2 and H
2 with small zinc content produced the irregular shaped carbon with glassy surface and dispersed zinc oxide but with small specific surface area and pore volume. The resin carbonized in CO
2 with large zinc content resulted in the macro porous carbon keeping the initial shape and inner morphology of the precursor resin. The samples carbonized with small zinc content showed small H
2 adsorption capacity with very small specific surface areas measured by nitrogen adsorption at 77K. The samples carbonized with high zinc content showed the large specific surface area and their H
2 adsorption capacity was high in the sample with high specific surface area.
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