Electrosynthesis of Ni-Co/Hydroxyapatite as a Catalyst for Hydrogen Generation via the Hydrolysis of Aqueous Sodium Borohydride (NaBH4) Solutions

To generate hydrogen from its storage as NaBH4, a catalyst was synthesized via an electrochemical method. The catalyst, Ni-Co, had hydroxyapatite as a support catalyst. The electrochemical cell consisted of a DC power supply, a carbon anode and cathode, and a bipolar membrane to separate the cell into two chambers. The current density was adjusted to 61, 91, and 132 mA/cm2. The electrolysis time was 30, 60, and 90 min. The particles produced were analyzed by XRD and SEM/EDX and tested in the hydrolysis of NaBH4 for hydrogen generation. The Ni-Co/HA catalyst test concluded that the period of time used for electrolysis during catalyst formation was positively correlated with the rate of NaBH4 hydrolysis in the production of hydrogen. The highest rate of hydrogen production was obtained using the synthesized catalyst with a current density of 92 mA/cm2. The NaBH4 hydrolysis reaction followed a first-order reaction with the rate constant of (2.220–14.117)•10-3 l/(g•min). The Arrhenius equation for hydrolysis reactions within the temperature range of 300–323 K is k = 6.5•10-6exp(-6000/T).

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Micro poly(3-sulfopropyl methacrylate) hydrogel synthesis for in situ metal nanoparticle preparation and hydrogen generation from hydrolysis of NaBH4

Energy ◽

10.1016/j.energy.2013.01.035 ◽

2013 ◽

Vol 55 ◽

pp. 511-518 ◽

Cited By ~ 38

Author(s):

Tugce Turhan ◽

Yuksel Avcıbası Güvenilir ◽

Nurettin Sahiner

Keyword(s):

Hydrogen Generation ◽

Metal Nanoparticle ◽

Hydrogel Synthesis ◽

Nanoparticle Preparation ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

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Thin-film CoB catalyst templates for the hydrolysis of NaBH4 solution for hydrogen generation

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2008.08.005 ◽

2009 ◽

Vol 86 (3-4) ◽

pp. 137-144 ◽

Cited By ~ 78

Author(s):

Palanichamy Krishnan ◽

Suresh G. Advani ◽

Ajay K. Prasad

Keyword(s):

Thin Film ◽

Hydrogen Generation ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

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Copper Nanowires as Highly Efficient and Recyclable Catalyst for Rapid Hydrogen Generation from Hydrolysis of Sodium Borohydride

Nanomaterials ◽

10.3390/nano10061153 ◽

2020 ◽

Vol 10 (6) ◽

pp. 1153 ◽

Cited By ~ 3

Author(s):

Aina Shasha Hashimi ◽

Muhammad Amirul Nazhif Mohd Nohan ◽

Siew Xian Chin ◽

Poi Sim Khiew ◽

Sarani Zakaria ◽

...

Keyword(s):

Hydrogen Storage ◽

Sodium Borohydride ◽

Fossil Fuels ◽

Hydrogen Generation ◽

Clean Energy ◽

Catalytic Performance ◽

Copper Nanowires ◽

H2 Generation ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

Hydrogen (H2) is a clean energy carrier which can help to solve environmental issues with the depletion of fossil fuels. Sodium borohydride (NaBH4) is a promising candidate material for solid state hydrogen storage due to its huge hydrogen storage capacity and nontoxicity. However, the hydrolysis of NaBH4 usually requires expensive noble metal catalysts for a high H2 generation rate (HGR). Here, we synthesized high-aspect ratio copper nanowires (CuNWs) using a hydrothermal method and used them as the catalyst for the hydrolysis of NaBH4 to produce H2. The catalytic H2 generation demonstrated that 0.1 ng of CuNWs could achieve the highest volume of H2 gas in 240 min. The as-prepared CuNWs exhibited remarkable catalytic performance: the HGR of this study (2.7 × 1010 mL min−1 g−1) is ~3.27 × 107 times higher than a previous study on a Cu-based catalyst. Furthermore, a low activation energy (Ea) of 42.48 kJ mol−1 was calculated. Next, the retreated CuNWs showed an outstanding and stable performance for five consecutive cycles. Moreover, consistent catalytic activity was observed when the same CuNWs strip was used for four consecutive weeks. Based on the results obtained, we have shown that CuNWs can be a plausible candidate for the replacement of a costly catalyst for H2 generation.

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Sustainable Hydrogen Generation by Catalytic Hydrolysis of NaBH4 Using Tailored Nanostructured Urchin-like CuCo2O4 Spinel Catalyst

Catalysis Letters ◽

10.1007/s10562-019-03025-w ◽

2019 ◽

Vol 150 (2) ◽

pp. 586-604 ◽

Cited By ~ 2

Author(s):

Komal N. Patil ◽

Divya Prasad ◽

Jayesh T. Bhanushali ◽

Hern Kim ◽

Amol B. Atar ◽

...

Keyword(s):

Hydrogen Generation ◽

Catalytic Hydrolysis ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

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Ni/Ag/silica nanocomposite catalysts for hydrogen generation from hydrolysis of NaBH4 solution

Materials Letters ◽

10.1016/j.matlet.2007.08.084 ◽

2008 ◽

Vol 62 (8-9) ◽

pp. 1451-1454 ◽

Cited By ~ 28

Author(s):

Yingbo Chen ◽

Hern Kim

Keyword(s):

Hydrogen Generation ◽

Silica Nanocomposite ◽

Nanocomposite Catalysts ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

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Hydrogen generation by hydrolysis of NaBH4 using nanocomposites

Nanomaterials for Hydrogen Storage Applications ◽

10.1016/b978-0-12-819476-8.00020-7 ◽

2021 ◽

pp. 231-248

Author(s):

Nurgul Kızıltas ◽

Yasar Karatas ◽

Mehmet Gulcan ◽

Sibel Demiroglu Mustafov ◽

Fatih Sen

Keyword(s):

Hydrogen Generation ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

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Preparation of CMC-PVA/PAN-FePc(COOH)8/CS-PVA Bipolar Membrane and its Application in Electro-Oxidized Synthesis of Dialdehydle Starch

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1120-1121.141 ◽

2015 ◽

Vol 1120-1121 ◽

pp. 141-147

Author(s):

Zhong Gui Li ◽

Ting Jin Zhou ◽

Ri Yao Chen ◽

Xiao Chen ◽

Xi Zheng ◽

...

Keyword(s):

Polyvinyl Alcohol ◽

Current Efficiency ◽

Current Density ◽

Cell Voltage ◽

Contact Angle Measurement ◽

Angle Measurement ◽

Experimental Results ◽

Bipolar Membrane ◽

Electrospinning Technique ◽

A Current

The polyacrylonitrile (PAN)-iron octocarboxyphthalocyanine (FePc(COOH)8) nanofibers were prepared using electrospinning technique and introduced into the interlayer of a carboxymethyl cellulose (CMC)-polyvinyl alcohol (PVA)/chitosan (CS)-polyvinyl alcohol bipolar membrane (BPM), which was characterized using SEM, contact angle measurement, current-voltage characteristics, AC impedance spectroscopy and so on. The experimental results showed that after modification by PAN-FePc(COOH)8 nanofibers, the membrane impedance of the BPM and its cell voltage were decreased. That indicated that the water splitting efficiency in the interlayer of the BPM was increased. Then the prepared CMC-PVA/PAN-FePc(COOH)8/CS-PVA BPM was used in the electro-oxidized preparation of dialdehydle starch (DAS). The experimental results indicated that a current density of 20mA·cm-2 was suitable to obtain high current efficiency. When the electrolysis time was 3h at a current density of 20 mA·cm-2 , the current efficiency of the CMC-PVA/PAN-FePc(COOH)8/CS-PVA BPM-equipped cell was as high as 67%.

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Hydrogen Production by Hydrolysis of NaBH4 with Cr-Ni-W-B Catalyst: Effects of Cold Plasma and Chromium Content

International Journal of Chemical Reactor Engineering ◽

10.1515/ijcre-2015-0139 ◽

2016 ◽

Vol 14 (1) ◽

pp. 351-359 ◽

Cited By ~ 4

Author(s):

Ömer Şahin ◽

Cafer Saka ◽

Arzu Ekinci ◽

Asım Balbay

Keyword(s):

Cold Plasma ◽

Hydrogen Generation ◽

Area Measurement ◽

Bet Surface Area ◽

Temperature Plasma ◽

Catalyst Composition ◽

Surface Area Measurement ◽

Carbon Dioxide Plasma ◽

Hydrolysis Of ◽

Hydrolysis Of Nabh4

AbstractIn this study, the hydrogen generation from the hydrolysis of NaBH4 with Cr0.0125-Ni-W-B catalyst prepared in the presence of cold plasma was investigated based on Cr content, NaBH4 concentration, NaOH concentration, temperature, plasma applying time and plasma gases effects. The results of the activity tests indicate that the choice of Cr and the catalyst composition greatly influenced the activity as well as the selectivity for hydrogen generation from the hydrolysis of NaBH4. The Cr0.0125-Ni-W-B catalyst was treated with argon, nitrogen and carbon dioxide plasma at different treatment times. The catalysts were characterized using SEM, BET surface area measurement and XRD.

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