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金属Mg储氢密度大和资源丰富,但金属Mg吸放氢温度太高,阻碍了它在实际中的应用。因此对金属Mg改性储氢研究,必须对其吸放氢温度和储氢体系的温度变化进行测试。对前期制备的2TiO230C70Mg复合材料测试结果表明:2TiO230C70Mg复合材料的吸放氢密度受吸放氢体系温度影响较大。当储氢温度为200℃时,复合材料的储氢密度达到最大值5.1%(wt,质量分数,下同),其最佳储氢温度在200℃左右、放氢温度在330℃时,其放氢量4.9%。
Metal Mg hydrogen storage density and rich resources, but the metal Mg hydrogen absorption and desorption temperature is too high, hindering its practical application. Therefore, the study of metal Mg modified hydrogen storage, hydrogen absorption and desorption temperature and hydrogen storage system must be tested for temperature changes. The test results of 2TiO230C70Mg composites prepared in earlier stage show that the hydrogen absorption and desorption densities of 2TiO230C70Mg composites are greatly influenced by the temperature of hydrogen absorption and desorption system. When the hydrogen storage temperature is 200 ℃, the hydrogen storage density reaches 5.1% (wt, mass fraction), the optimal hydrogen storage temperature is about 200 ℃ and the hydrogen storage temperature is 330 ℃ Hydrogen release capacity of 4.9%.