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The intermetallic compound InPd2 was prepared as single-phase material and used in an unsupported state as catalyst in the semi-hydrogenation of ethyne in a large excess of ethene. InPd2 showed high activity and selectivity (up to 93%) toward ethene in the temperature range from 478 to 508K. In addition, the compound revealed high stability during 20h time on stream at 473K at 80% selectivity and...
The structurally ordered intermetallic compounds PdGa and Pd 3 Ga 7 constitute highly selective catalysts for the selective semi-hydrogenation of acetylene. The milling of as-synthesized samples, followed by etching with ammonia solution increased the activity of the catalysts by factor of 60. Chemically etched samples possess high activity and simultaneously keep their high selectivity...
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