“…Impressive achievements have been reached in this area by applying catalysts based on noble metal NPs (e.g., Pd, − Pt, − Rh, ,− Ru, ,− Ir, ,, and Au , ). However, the high and volatile price associated with the low availability of precious metals has boosted the interest to exploit cheap and earth-abundant metals for the development of novel catalysts in recent times, although, to date, to a limited extent for the hydrogenation of quinolines.…”