Skeletal Ni(S-Ni) with the sponge-like structure is a kind of well-known catalyst widely used in many hydrogenation processes. S-Ni offers several advantages such as easy separation, purification and recycling procedure. How to improve the activity, selectivity and life time of the S-Ni has been attracting worldwide attention for decades. The skeletal Ni prepared by rapidly quenching technique(QS-Ni), was a sort of effective and environmentally benign catalyst. In petrochemical industry, QS-Ni has be...