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The catalytic semi-hydrogenation of alkynes (C≡C) to al-kenes (C=C) has long been a crucial and challenging step in industry as it restrains the tendency of over-hydrogenation towards substrates [1].Up to now,Pd-based catalysts show ultrahigh activity and selectivity towards the semi-hydrogenation of alkynes and are commonly used in in-dustry,while metals such as Cu,Ag and Au exhibit relatively low activity due to their poor hydrogen activation ability.