Zeolite confined palladium(0) nanoclusters as effective and reusable catalyst for hydrogen generation from the hydrolysis of ammonia-borane

Palladium nanoparticles supported on natural nanozeolite clinoptilolite as a catalyst for ligand and copper-free C–C and C–O cross coupling reactions in aqueous medium

“…8 Palladium-catalyzed cross-coupling for the C-C and C-O bonds forming reactions have increased exponentially over the years because of their vast applications in the preparation of notable compounds. 19,20 However, natural zeolites hold some key advantages over their synthetic analogues due to their natural characteristics and constituents, much less processing cost, availability, greater thermal stability and better resistance to acid environments. 9 To solve these problems, palladium has been supported on materials such as activated carbon, 10 zeolites and molecular sieves, 11 metal oxides (SiO 2 , 12a TiO 2 (ref.…”

Selective synthesis and characterization of metallic cobalt, cobalt/platinum, and platinum microspheres

“…Unlike borohydrides, ammonia-borane solutions do not require any additional stabilization by using bases but only suitable catalyst (Eq. (1)) [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. …”

“…In particular, noble metal-based catalysts such as Fe@Pt core-shell nanoparticles [9], Au@Co core-shell nanoparticles [8], Pt x Ni 1−x nanoparticles [15,16], ruthenium supported on carbon [17], water-soluble poly (4-styrenesulfonic acid-co-maleic acid) stabilized ruthenium(0) and palladium(0) nanoclusters [18], zeolite confined palladium(0) nanoclusters [5], zeolite confined rhodium(0) nanoclusters [6], zeolite framework stabilized rhodium(0) nanoclusters [19], water soluble lauratestabilized ruthenium(0) nanoclusters [20] have exhibited very high catalytic activity for hydrolysis of NH 3 BH 3 . Non-noble metal catalysts such as Co nanoparticles [21], Ni nanoparticles [7], intrazeolite cobalt(0) nanoclusters [2], cobalt chloride CoCl 2 [3], nanoparticle-assembled Co-B thin film [22], electroplated Co-P [1], cobalt-molybdenum-boron/nickel foam [23], water-soluble polymer-stabilized cobalt(0) nanoclusters [24], poly (N-vinyl-2-pyrrolidone) (PVP) stabilized nickel [25], nanosized Co-and Ni-based catalysts [26], zeolite confined copper(0) nanoclusters [27], hollow Ni-SiO 2 nanosphere [28], Fe-Ni alloy [29] have also shown high H 2 generation kinetics from hydrolysis of NH 3 BH 3 .…”

An improved preparation of graphene supported ultrafine ruthenium (0) NPs: Very active and durable catalysts for H2 generation from methanolysis of ammonia borane

“…ICP result of the reused catalyst at 15th catalytic run indicated almost the same Ru amount (2.27 wt%) compared with that of the as-prepared Ru/graphene catalyst. Additionally, the decreased activity also might result from the catalyst material loss during the separation and redispersion [33]. The reusability tests demonstrated very high stability of Ru/graphene throughout the catalytic runs in the methanolysis of AB.…”