Hydrogen generation from hydrolytic dehydrogenation of hydrazine borane by poly(N-vinyl-2-pyrrolidone)-stabilized palladium nanoparticles

Hydrolysis of ammonia borane and hydrazine borane by poly($N$-vinyl-2-pyrrolidone)-stabilized CoPd nanoparticles for chemical hydrogen storage

“…(4): The average TOF value of CoPd @ PVP nanoparticles in the hydrolysis of AB is lower than that of noble metals like Ru, Rh, or Pt but still much higher than that of NiCo @ GO (6.8 min −1 ) , 8 AgCo @ PAMAM (15.8 min −1 ), 9 Pd x Sn 100−x (13.6 min −1 ), 16 Cu 75 Pd 25 (29.9 min −1 ), 17 NiPd @ rGO (28.7 min −1 ) , 22 and Cu 0.2 Ni 0.8 @ MCM-41 (10.7 min −1 ), 24 as seen from Table 1. Similarly, the average TOF value of CoPd @ PVP nanoparticles in the hydrolysis of HB is lower than that of Rh @ HAP NPs (115 min −1 ) 36 and RhCl 3 (100 min −1 ) 37 but higher than that of Ni 0.9 Pt 0.1 @ graphene (4 min −1 ) , 31 Pd @ PVP NPs (42.9 min −1 ), 32 NiPt @ CeO 2 (3.9 min −1 ), 33 PSSA-co-MA stabilized Co(0) NPs (6.2 min −1 ), 34 PSSA-co-MA stabilized Ni(0) NPs (3.1 min −1 ), 35 CeO x -RhNi @ rGO (11.1 min −1 ) , 38 and Cu @ SiO 2 (7.6 min −1 ) , 39 as seen from Table 2. The observed rate constants (k obs ) for hydrogen release from hydrolysis reactions of AB and HB were calculated from the linear parts of the plots given in Figure 6 and are shown in Tables 3 and 4 The energy of activation value of CoPd @ PVP nanoparticles in the hydrolysis of AB is higher than that of RuCuCo @ MIL-101 (48 kJ mol −1 ) , 6 RuCuNi @ CNTs (36.7 kJ mol −1 ), 11 AuCo @ CNT (38.8 kJ mol −1 ), 15 and NiAgPd/C (38.4 kJ mol −1 ), 21 but lower than that of Ru @ nanodiamond (50.7 kJ mol −1 ), 12 AgPd @ UIO-66-NH 2 (51.8 kJ mol −1 ), 13 and PdPt @ PVP NPs (51.7 kJ mol −1 ) , 18 as seen from Table 1.…”

“…Similarly, the energy of activation value of CoPd @ PVP nanoparticles in the hydrolysis of HB is higher than that of Rh @ HAP NPs (45 kJ mol −1 ) 36 and RhCl 3 (44 kJ mol −1 ) 37 but lower than that of Pd @ PVP NPs (54.5 kJ mol −1 ), 32 PSSA-co-MA stabilized Co(0) NPs (60 kJ mol −1 ), 34 and PSSA-co-MA stabilized Ni(0)…”

PtNi@ZIF-8 nanocatalyzed high efficiency and complete hydrogen generation from hydrazine borane: origin and mechanistic insight

“…[49][50][51][52][53] Therefore, these unique advantages makes which is toxic to fuel cell catalysts. [54][55][56] Thus, selective, complete and highly efficient catalysts are highly designable to make HB a safe and efficient H 2 storage material.…”

Hydrolysis of Hydrazine Borane for Chemical Hydrogen Storage by Highly Efficient Poly(N-vinyl-2-pyrrolidone)-protected Rhodium Nanoparticles

“…Then, aliquots of Rh@PVP nanoparticles (10 -x mL) from Herein, we report the first time use of highly efficient poly(N-vinyl-2-pyrrolidone)-protected rhodium nanoparticles (Rh@PVP NPs) in the hydrolysis of HB for hydrogen generation. PVP is a very versatile reagent that has been used for the preparation of nanocatalysts for hydrogen generation from boron containing compounds [14][15][16][17]. For the preparation of nanoparticles, PVP can be used as only stabilizer or both stabilizer and reducing agent as in our case.…”