Preparation of magnetic cobalt-based catalyst for hydrogen generation from alkaline NaBH4 solution

Polymer hydrogel supported Pd–Ni–B nanoclusters as robust catalysts for hydrogen production from hydrolysis of sodium borohydride

“…After reuse for 9 times, the catalysts still retain 75% of their initial activities. The activation energy involved in the catalyzed hydrolysis of NaBH 4 is lower than recent reported values for polymerstabilized Ni(0), Co(0) and Fe (0) Catalyst E a (kJ/mol) P(AMPS)-Co [21] 38.14 Co/g-Al 2 O 3 [22] 32.63 CoeB/Ni [33] 33 Ru (0) [12] 28.52 Ru [13] 47 Bulk Ni [40] 71 Raney Ni [40] 63 Raney Co [62] 53.7 Bulk Co [40] 75 IR-120 resin-Co [19] 66.67 PEG-Fe (0) [38] 37.0 CoeB [33] 42.3 CoeAl 2 O 3 eCu [59] 52 CoeB/C [61] 57.8 Pd/C powder [14] 28 PVP-Ni (0) [46] 48 NieB [60] 54 P(AMPS)-Ni [39] 42.28 PdeNieB (this work) 31.1 i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 8 ( 2 0 1 3 ) 9 2 0 6 e9 2 1 6…”

Hydrogen generation from catalytic hydrolysis of sodium borohydride using bimetallic Ni–Co nanoparticles on reduced graphene oxide as catalysts

“…Qualitatively, ICP-OES and TGA analyses seemingly showed the similar trend that the combined contents of Ni and Co on NieCo/r-GO(suc) catalysts were relatively higher than those of NieCo/r-GO(sim) catalysts. Previously, cobalt accounted for approximately 30 wt% of Co/IR-120 catalysts, measured by the ICP-OES, could be deposited onto the commercial ion-exchange resin beads, Amberlite IR-120 [7]. In this work, the electroless deposition of Ni and Co in succession on r-GO supports could give a much higher loadings of active catalytic species, Co (26.1 wt%) and Ni (39.5 wt%).…”

“…Several factors could influence the hydrolysis reaction of sodium borohydride [7]. For example, the heat exothermically emitted from the reacting system could increase the temperature of the reacting system and, therefore, accelerate the reaction rates on both sides of the hydrolysis reaction.…”

“…Co, Ni, Fe and their alloys) are broadly conducted [5e9,20]. Furthermore, the light-weighted catalysts are getting more and more desired so as to enhance the gravimetric storage capacity of hydrogen by reducing the total weight of the hydrogen fuel system [7,9]. Consequently, the use of the light-weighted graphene as a catalyst support is attempted in this work.…”

Catalytic behavior of carbon supported Ni–B, Co–B and Co–Ni–B in hydrogen generation by hydrolysis of KBH4

“…2c. The dense flower-shaped structures were also observed on Co/IR-120 catalysts after cobalt was reduced on IR-120 resin beads with relatively smooth surface by NaBH 4 [25]. The compositions of the catalysts were determined by EDS and listed in Fig.…”