The highest catalytic activity in the hydrolysis of ammonia borane by poly(N-vinyl-2-pyrrolidone)-protected palladium–rhodium nanoparticles for hydrogen generation

Catalytic hydrodechlorination of trichloroethylene in a novel NaOH/2-propanol/methanol/water system on ceria-supported Pd and Rh catalysts

“…The reduction with hydrogen generated an increase in Rh 0 species at 309 eV (40%) compared to RhCe-R catalyst (27%), which kept constant after reaction (PdRhCeU). Thus, both Pd and Rh metals were reduced in a greater proportion by H 2 reduction in the bimetallic catalysts, in agreement with previous reports (Rakap, 2015). This reduction also explains the active particle mobility and redistribution observed in TEM (Fig.…”

Magnetic RuCo nanoparticles supported on two-dimensional titanium carbide as highly active catalysts for the hydrolysis of ammonia borane

“…Chemical hydrides have been the focus of significant research interest because of their high gravimetric and volumetric storage capacity [4]. Among chemical hydrides, ammonia borane (AB) is attracting considerable attention because of its high hydrogen content (19.6 wt %) [5]. The release of hydrogen from AB hydrolysis catalyzed by efficient, economic and recyclable catalysts under mild conditions is one of the most extensively investigated areas.…”

PVP-stabilized Ru–Rh nanoparticles as highly efficient catalysts for hydrogen generation from hydrolysis of ammonia borane

“…5) for hydrolysis reaction. This value of activation energy for the hydrolysis of AB is lower than the activation energies reported in the literature for the same reaction using many different catalysts: 52 kJ/mol for RuCu NPs [6], 51.6 kJ/mol for PteCo NPs [17], 51.3 kJ/mol for Cu@Co NPs [20], 54.5 kJ/mol for RuePd@PVP NPs [21], 56.3 kJ/mol for PteRu@PVP NPs [22], and 51.7 kJ/mol for PdePt@PVP NPs [24]; but still higher than 37.2 kJ/mol for NieRu NPs [5], 36.6 kJ/mol for Ru@Ni NPs [8], 38 kJ/mol for CuNi NPs [9], 45 kJ/mol for NiPd NPs [18], and 46.1 kJ/ mol for PdeRh@PVP NPs [23].…”

“…Ni@Ru coreeshell nanoparticles [4], NieRu alloy nanoparticles [5], RuCo and RuCu on ɤ-Al 2 O 3 [6], RuCu on graphene [7], Ru@Ni coreeshell nanoparticles [8], CueNi on MCM-41 [9], Ru@Co on graphene [10], CoNi@rGO [11], CuCo@MOF nanoparticles [12], Ni/Pt hollow nanospheres [13], Ag/Pd@nanofiber nanoparticles [14], Pt-M (M ¼ Fe, Co, Ni) nanoparticles [15], AuCo@MOF nanoparticles [16], PteCo@GO nanoparticles [17], NiPd@rGO nanoparticles [18], CuNi nanoparticles [19], and Cu@Co on rGO nanoparticles [20] are the examples of those type of catalysts. Very recently, poly(N-vinyl-2-pyrrolidone (PVP))-protected bimetallic nanoparticles, such as rutheniumepalladium [21], platinumeruthenium [22], palladiumerhodium [23], and palladiumeplatinum [24] nanoparticles, have been shown to be highly efficient catalysts for hydrogen generation from boron compounds providing remarkable results.…”