Nanometer TiF3 catalyzed high-volume hydrogen-storing alloy and preparation method thereof
A hydrogen storage alloy, high-capacity technology, applied in the field of hydrogen storage alloy materials, can solve the problem of extremely poor hydrogen absorption and desorption kinetics of the alloy
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[0031] The preparation method of the high-capacity hydrogen storage alloy for fuel cell of the present invention includes the following steps:
[0032] 1. Compose La according to chemical formula 2-x RE x Mg 17-y Ni y For ingredients, where 0.2
[0033] 2. Put the prepared raw materials in a magnesium oxide crucible, except for magnesium on the top of the crucible, add other materials to the crucible in no particular order. Use induction heating for smelting and vacuum to 1×10 -2 ~5×10 -4 Pa, then filled with 0.01~0.1 MPa inert protective gas, namely argon + helium mixed gas, the volume ratio of the mixed gas is about 1:1, or filled with high purity helium; the melting temperature is 1300~1500℃, depending ...
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[0039] Example 1: La 1.6 Nd 0.4 Mg 15 Ni 2 +100(wt)%Co+4(wt)%TiF 3 ;
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[0040] Example 2: La 1.6 Y 0.4 Mg 15 Ni 2 +100(wt)%Co+6(wt)%TiF 3 ;
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