“…Palladium catalysts based on monoliths [7,8], H 2 -permeable membranes [9,10], metallic grids [11,12], and bidimensional glass [13] and carbon [14,15] fabrics have shown high selectivity to alkenes in liquid-phase hydrogenation. The disadvantages of these structured catalysts are low surface area, low reactor space-time yield, high fabrication costs, or low mechanical strength.…”