Effect of various Co–B catalyst synthesis conditions on catalyst surface morphology and NaBH4 hydrolysis reaction kinetic parameters

Chen, Yih-Hang; Pan, Chuan-Yi

doi:10.1016/j.ijhydene.2013.11.067

Cited by 20 publications

(5 citation statements)

References 33 publications

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“…In addition, many researches discussed the effects of preparation condition, support's type and protective agents on morphologies and catalytic activities of Co NPs in hydrogen generation. [24][25][26] Bi-and tri-metallic nanoparticles (BNPs and TNPs) were reported to be more active in chemical reactions than their counterparts of monometallic nanoparticles (MNPs) because of the so-called lattice strain effects, geometric effects and electronic charge transfer effects. 27,28 It was also demonstrated that alloying of noble metals with other non-noble transition metals not only led to the enhanced catalytic performance but also reduced the overall cost.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

et al. 2015

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“…Moreover, Co–B/IR-120 (Amberlite IR-120) and Co–B/TP-207 (Lewatit TP-207) catalysts were prepared for catalyzing NaBH 4 . 142 Co–B/TP207 has a faster HG rate and more stability than Co–B/IR-120. It provided a feasible scheme for developing Co–B catalysts with an organic-supported structure.…”

Section: Supported Co–b-based Catalystsmentioning

confidence: 93%

The mechanism and challenges of cobalt-boron-based catalysts in the hydrolysis of sodium borohydride

Long,

Chen,

Sharshir

et al. 2024

J. Mater. Chem. A

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“…Chen et al. have investigated the effects of varying different synthesis conditions on the effect of catalyst activity of Co‐B deposited on ion exchange resins . They found that a slower reduction time gives a higher surface area, more active catalytic Co‐B species.…”

Section: Nonnoble Metal Catalysts: Cobalt (Co) and Nickel (Ni)mentioning

confidence: 99%

“…The authors [99] noted that supported Co-B catalysts perform better in the sodium borohydride hydrolysis reaction than unsupported catalysts. Chen et al have investigated the effects of varying different synthesis conditions on the effect of catalyst activity of Co-B deposited on ion exchange resins [100]. They found that a slower reduction time gives a higher surface area, more active catalytic Co-B species.…”

Section: Nonnoble Metal Catalysts: Cobalt (Co) and Nickel (Ni)mentioning

confidence: 99%

Heterogeneous and homogenous catalysts for hydrogen generation by hydrolysis of aqueous sodium borohydride (NaBH₄) solutions

Brack

Dann

Wijayantha

2015

Energy Science & Engineering

243

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It is clear that in order to satisfy global energy demands whilst maintaining sustainable levels of atmospheric greenhouse gases, alternative energy sources are required. Due to its high chemical energy density and the benign by-product of its combustion reactions, hydrogen is one of the most promising of these. However, methods of hydrogen storage such as gas compression or liquefaction are not suitable for portable or automotive applications due to their low hydrogen storage densities. Accordingly, much research activity has been focused on finding higher density hydrogen storage methods. One such method is to generate hydrogen via the hydrolysis of aqueous sodium borohydride (NaBH 4 ) solutions, and this has been heavily studied since the turn of the century due to its high theoretical hydrogen storage capacity (10.8 wt%) and relatively safe operation in comparison to other chemical hydrides. This makes it very attractive for use as a hydrogen generator, in particular for portable applications. Major factors affecting the hydrolysis reaction of aqueous NaBH 4 include the performance of the catalyst, reaction temperature, NaBH 4 concentration, stabilizer concentration, and the volume of the reaction solution. Catalysts based on noble metals, in particular ruthenium (Ru) and platinum (Pt), have been shown to be particularly efficient at rapid generation of hydrogen from aqueous NaBH 4 solutions. However, given the scarcity and expense of such metals, a transition metal-based catalyst would be a desirable alternative, and thus much work has been conducted using cobalt (Co) and nickel (Ni)-based materials to attempt to source a practical option. "Metal free" NaBH 4 hydrolysis can also be achieved by the addition of aqueous acids such as hydrochloric acid (HCl) to solid NaBH 4 . This review summarizes the various catalysts which have been reported in the literature for the hydrolysis of NaBH 4 .

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Effect of various Co–B catalyst synthesis conditions on catalyst surface morphology and NaBH4 hydrolysis reaction kinetic parameters

Cited by 20 publications

References 33 publications

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

The mechanism and challenges of cobalt-boron-based catalysts in the hydrolysis of sodium borohydride

Heterogeneous and homogenous catalysts for hydrogen generation by hydrolysis of aqueous sodium borohydride (NaBH₄) solutions

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Effect of various Co–B catalyst synthesis conditions on catalyst surface morphology and NaBH4 hydrolysis reaction kinetic parameters

Cited by 20 publications

References 33 publications

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

Synthesis of Ni/Au/Co trimetallic nanoparticles and their catalytic activity for hydrogen generation from alkaline sodium borohydride aqueous solution

The mechanism and challenges of cobalt-boron-based catalysts in the hydrolysis of sodium borohydride

Heterogeneous and homogenous catalysts for hydrogen generation by hydrolysis of aqueous sodium borohydride (NaBH4) solutions

Contact Info

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Heterogeneous and homogenous catalysts for hydrogen generation by hydrolysis of aqueous sodium borohydride (NaBH₄) solutions