Hydrolysis and regeneration of sodium borohydride (NaBH 4 ) – A combination of hydrogen production and storage

Chen, W.; Ouyang, Liuzhang; Liu, J.W.; Yao, Xiangdong; Wang, H.; Liu, Z.W.; Zhu, Min

doi:10.1016/j.jpowsour.2017.05.075

Cited by 190 publications

(61 citation statements)

References 39 publications

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“…Inorganics 2018, 6, 10 5 of 12 NaBO2•4H2O or NaBO2•2H2O to react with MgH2 directly via ball milling to regenerate NaBH4 [77]. NaBH4 was successfully regenerated (Figure 1b):…”

Section: Nabh 4 Regeneration Via the Reaction Between Metal Or Other mentioning

confidence: 99%

“…Considering the generated oxide layer, ball milling might be suitable to break the layer and continue the reaction. Therefore, we tried to used NaBO 2 ·4H 2 O or NaBO 2 ·2H 2 O to react with MgH 2 directly via ball milling to regenerate NaBH 4 [77]. NaBH 4 was successfully regenerated (Figure 1b) The energy efficiency calculated in Section 2 could be improved by approximately 5.2%.…”

Section: Nabh 4 Regeneration Via the Reaction Between Mgh 2 And Nabo mentioning

confidence: 99%

“…The above three works [77,79,80] are new discoveries for direct regeneration of NaBH 4 from the hydrated NaBO 2 with high yield. Some common points were found in their mechanism studies.…”

Section: Mechanism Of Nabh 4 Regeneration Using Nabo 2 ·Xh 2 O As Rawmentioning

confidence: 99%

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A Recycling Hydrogen Supply System of NaBH4 Based on a Facile Regeneration Process: A Review

Ouyang

Zhong

et al. 2018

Inorganics

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NaBH 4 hydrolysis can generate pure hydrogen on demand at room temperature, but suffers from the difficult regeneration for practical application. In this work, we overview the state-of-the-art progress on the regeneration of NaBH 4 from anhydrous or hydrated NaBO 2 that is a byproduct of NaBH 4 hydrolysis. The anhydrous NaBO 2 can be regenerated effectively by MgH 2 , whereas the production of MgH 2 from Mg requires high temperature to overcome the sluggish hydrogenation kinetics. Compared to that of anhydrous NaBO 2 , using the direct hydrolysis byproduct of hydrated NaBO 2 as the starting material for regeneration exhibits significant advantages, i.e., omission of the high-temperature drying process to produce anhydrous NaBO 2 and the water included can react with chemicals like Mg or Mg 2 Si to provide hydrogen. It is worth emphasizing that NaBH 4 could be regenerated by an energy efficient method and a large-scale regeneration system may become possible in the near future.

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“…Inorganics 2018, 6, 10 5 of 12 NaBO2•4H2O or NaBO2•2H2O to react with MgH2 directly via ball milling to regenerate NaBH4 [77]. NaBH4 was successfully regenerated (Figure 1b):…”

Section: Nabh 4 Regeneration Via the Reaction Between Metal Or Other mentioning

confidence: 99%

Section: Nabh 4 Regeneration Via the Reaction Between Mgh 2 And Nabo mentioning

confidence: 99%

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A Recycling Hydrogen Supply System of NaBH4 Based on a Facile Regeneration Process: A Review

Ouyang

Zhong

et al. 2018

Inorganics

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“…Therefore, it is also imminent to develop high‐efficiency H 2 generation technology, which can be easily implemented without high investment. Currently, hydrolysis by high activity alloys and other composites, such as aluminum (Al), magnesium (Mg), metal hydrides, and complex hydrides, in water are proved to be promising ways to generate H 2 …”

Section: Introductionmentioning

confidence: 99%

Insight into the effect of In addition on hydrogen generation behavior and hydrolysis mechanism of Al‐based ternary alloys in distilled water—A new active Al‐Ga‐In hydrolysis hydrogen generation alloy

Liu

Jin

et al. 2019

Int J Energy Res

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Al2Ga)-xIn (x = 0, 2, 4, 6, 8 wt%) ternary aluminum (Al) alloys with different weight ratio of In for hydrolysis H 2 generation were prepared by meltingcasting technique. The phase compositions and microstructures of Al-rich alloys were investigated by X-ray diffraction (XRD) and high resolution scanning electron microscope (HR-SEM) equipped with an energy dispersive spectrometer (EDS). The effect of In addition ratio on microstructures and H 2 generation performance were investigated, and the hydrolysis mechanism for Al-Ga-In ternary Al-based alloys has been proposed. Al phase as matrix phase in the Al-Ga-In ternary alloy mainly determines the hydrolysis behavior, and the second phase In strongly promotes the hydrolysis process. The increase of In content can accelerate the H 2 generation rate as well as the final capacity and generation yield in neutral water. The generation yields for (Al2Ga)-x In (x = 2, 4, 6, 8 wt%) alloys at 50°C are 0.56, 0.59, 0.62, and 0.66, respectively. The raising hydrolysis temperature can elevate the initial hydrolysis rate, final H 2 generation capacity, and yield. The H 2 generation capacities of (Al2Ga)-8In alloy at 50°C, 60°C, and 70°C are 262, 290, and 779 mL·g −1 , respectively.

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“…[3] In the last years, a vast number of materials in which hydrogen can be stored physically or chemically have been developed. [4] Sodium borohydride (NaBH 4 ), [5][6][7] ammonia borane (NH 3 BH 3 ) [8][9] and hydrazine borane (N 2 H 4 BH 3 ) [10] are some of the representatives. NaBH 4 is an attractive chemical hydride which can release 4 equivalents H 2 while hydrolyzing.…”

Section: Introductionmentioning

confidence: 99%

Protonated Poly(ethylene imine)‐Coated Silica Nanoparticles for Promoting Hydrogen Generation from the Hydrolysis of Sodium Borohydride

et al. 2019

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Nonmetal catalysts are attracting a great deal of attention because of their advantages including high activity, low cost, and environmental friendliness. In this work, a nonmetal catalyst for NaBH4 hydrolysis was fabricated through covalent modification of silica nanoparticles with protonated poly(ethylene imine). The successful formation of the catalyst was verified by transmission electron microscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The fabricated catalyst shows excellent activity in catalyzing NaBH4 hydrolysis reactions. The hydrolysis of 15 mg NaBH4 catalyzed by 50 mg catalyst could provide a hydrogen generation rate as high as 117.53 mL min−1 gcat-1 at 20 °C. Although the catalytic activity decreased after use, it could be restored easily by regenerating in acetic acid solution.

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Hydrolysis and regeneration of sodium borohydride (NaBH 4 ) – A combination of hydrogen production and storage

Cited by 190 publications

References 39 publications

A Recycling Hydrogen Supply System of NaBH4 Based on a Facile Regeneration Process: A Review

A Recycling Hydrogen Supply System of NaBH4 Based on a Facile Regeneration Process: A Review

Insight into the effect of In addition on hydrogen generation behavior and hydrolysis mechanism of Al‐based ternary alloys in distilled water—A new active Al‐Ga‐In hydrolysis hydrogen generation alloy

Protonated Poly(ethylene imine)‐Coated Silica Nanoparticles for Promoting Hydrogen Generation from the Hydrolysis of Sodium Borohydride

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