Organic acid-catalyzed hydrolysis of Magnesium hydride for generation of hydrogen in a batch system hydrogen reactor
- Adeniran, Joshua Adeniyi, Akinlabi, Esther Titilayo, Chen, Hong-Sheng, Fono-Tamo, Romeo, Jen, Tien-Chien
- Authors: Adeniran, Joshua Adeniyi , Akinlabi, Esther Titilayo , Chen, Hong-Sheng , Fono-Tamo, Romeo , Jen, Tien-Chien
- Date: 2017
- Subjects: hydrolysis, hydrogen generation , Hydrolysis , Hydrogen generation , Kinetics
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/241943 , uj:24943 , Citation: Adeniran, J.A. 2017. Organic acid-catalyzed hydrolysis of Magnesium hydride for generation of hydrogen in a batch system hydrogen reactor.
- Description: Abstract: Hydrogen generation from MgH2 is of interest to the research community due to various alluring attributes of MgH2 as a hydrogen generation substrate. In this study MgH2 powder was utilized as a substrate in hydrolysis reaction catalyzed by acetic acid, an environmentally friendly and relatively cheap acid. The reaction was conducted in a hydrogen generation reactor operated in a batch mode. Three sample weights (0.4g, 0.8g and 1.2g) of the substrates were utilized for the experiment at 40, 50, 60 and 70 wt% acetic acid concentration at 50 °C for investigation of the roles of substrate weigh and catalyst concentration on hydrogen yield. The results indicated that MgH2 powder weight influenced hydrogen generation more compared to the catalyst concentration. The highest hydrogen yield in the study was 0.048 L hydrogen gas from 0.4g MgH2 powder (70 wt% acetic acid) while the highest hydrogen generation was reported when 1.2g substrate hydrolyzed in 50 wt% acetic acid.
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- Authors: Adeniran, Joshua Adeniyi , Akinlabi, Esther Titilayo , Chen, Hong-Sheng , Fono-Tamo, Romeo , Jen, Tien-Chien
- Date: 2017
- Subjects: hydrolysis, hydrogen generation , Hydrolysis , Hydrogen generation , Kinetics
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/241943 , uj:24943 , Citation: Adeniran, J.A. 2017. Organic acid-catalyzed hydrolysis of Magnesium hydride for generation of hydrogen in a batch system hydrogen reactor.
- Description: Abstract: Hydrogen generation from MgH2 is of interest to the research community due to various alluring attributes of MgH2 as a hydrogen generation substrate. In this study MgH2 powder was utilized as a substrate in hydrolysis reaction catalyzed by acetic acid, an environmentally friendly and relatively cheap acid. The reaction was conducted in a hydrogen generation reactor operated in a batch mode. Three sample weights (0.4g, 0.8g and 1.2g) of the substrates were utilized for the experiment at 40, 50, 60 and 70 wt% acetic acid concentration at 50 °C for investigation of the roles of substrate weigh and catalyst concentration on hydrogen yield. The results indicated that MgH2 powder weight influenced hydrogen generation more compared to the catalyst concentration. The highest hydrogen yield in the study was 0.048 L hydrogen gas from 0.4g MgH2 powder (70 wt% acetic acid) while the highest hydrogen generation was reported when 1.2g substrate hydrolyzed in 50 wt% acetic acid.
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Reactive molecular dynamics simulations of nickel-based heterometallic catalysts for hydrogen evolution in an alkaline KOH solution
- Oyinbo, Sunday Temitope, Jen, Tien-Chien
- Authors: Oyinbo, Sunday Temitope , Jen, Tien-Chien
- Date: 2021
- Subjects: Heterometallic catalyst , Hydrogen generation , Alkaline KOH solution
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/485929 , uj:44185 , Citation: Sunday Temitope Oyinbo, Tien-Chien Jen, Reactive molecular dynamics simulations of nickel-based heterometallic catalysts for hydrogen evolution in an alkaline KOH solution, Computational Materials Science, Volume 201, https://doi.org/10.1016/j.commatsci.2021.110860. , ISSN: 0927-0256 , DOI: 10.1016/j.commatsci.2021.110860
- Description: Abstract: Please refer to full text to view abstract.
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- Authors: Oyinbo, Sunday Temitope , Jen, Tien-Chien
- Date: 2021
- Subjects: Heterometallic catalyst , Hydrogen generation , Alkaline KOH solution
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/485929 , uj:44185 , Citation: Sunday Temitope Oyinbo, Tien-Chien Jen, Reactive molecular dynamics simulations of nickel-based heterometallic catalysts for hydrogen evolution in an alkaline KOH solution, Computational Materials Science, Volume 201, https://doi.org/10.1016/j.commatsci.2021.110860. , ISSN: 0927-0256 , DOI: 10.1016/j.commatsci.2021.110860
- Description: Abstract: Please refer to full text to view abstract.
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Simultaneous brewery wastewater treatment and hydrogen generation via hydrolysis using Mg waste scraps
- Akbarzadeh, R., Adeniran, J.A., Lototskyy, M., Asadi, A.
- Authors: Akbarzadeh, R. , Adeniran, J.A. , Lototskyy, M. , Asadi, A.
- Date: 2020
- Subjects: Brewery wastewater , Treatment , Hydrogen generation
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/433092 , uj:37436 , Citation: Akbarzadeh, R. et al. 2020. Simultaneous brewery wastewater treatment and hydrogen generation via hydrolysis using Mg waste scraps.
- Description: Abstract: An advanced, eco-efficient “waste plus waste to hydrogen” method was developed for hydrogen generation and the simultaneous treatment of two types of waste generated from magnesium and brewerybased industries via hydrolysis. The hydrolysis of Mg scraps was carried out using brewery wastewater and the reaction was accelerated with acetic acid (aa) at different concentrations (0, 12, 18, 24 and 30 wt% aa). The concentration of pollutants such as cyclortisiloxane-hexamethyle (C6H18O3Si3), which are persistent in conventional wastewater treatment, was successfully reduced. After the hydrolysis of the wastewater, 62.4% of chemical oxygen demand (COD) reduction and the complete colour removal were observed. The highest hydrogen generation, about 0.99 NL/min (>60% H2 yield in 5 min), was observed in the presence of 30 wt% aa concentration in the hydrolysis reaction. This study proposes an eco-efficient hydrogen generation and waste treatment method as it simultaneously degrades pollutants and produces hydrogen utilizing Mg scrap waste and brewery wastewater without additional energy consumption.
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- Authors: Akbarzadeh, R. , Adeniran, J.A. , Lototskyy, M. , Asadi, A.
- Date: 2020
- Subjects: Brewery wastewater , Treatment , Hydrogen generation
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/433092 , uj:37436 , Citation: Akbarzadeh, R. et al. 2020. Simultaneous brewery wastewater treatment and hydrogen generation via hydrolysis using Mg waste scraps.
- Description: Abstract: An advanced, eco-efficient “waste plus waste to hydrogen” method was developed for hydrogen generation and the simultaneous treatment of two types of waste generated from magnesium and brewerybased industries via hydrolysis. The hydrolysis of Mg scraps was carried out using brewery wastewater and the reaction was accelerated with acetic acid (aa) at different concentrations (0, 12, 18, 24 and 30 wt% aa). The concentration of pollutants such as cyclortisiloxane-hexamethyle (C6H18O3Si3), which are persistent in conventional wastewater treatment, was successfully reduced. After the hydrolysis of the wastewater, 62.4% of chemical oxygen demand (COD) reduction and the complete colour removal were observed. The highest hydrogen generation, about 0.99 NL/min (>60% H2 yield in 5 min), was observed in the presence of 30 wt% aa concentration in the hydrolysis reaction. This study proposes an eco-efficient hydrogen generation and waste treatment method as it simultaneously degrades pollutants and produces hydrogen utilizing Mg scrap waste and brewery wastewater without additional energy consumption.
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Sustainable hydrogen generation substrates, catalysts and methods : an overview
- Adeniran, J. A., DeKoker, J. J., Akinlabi, Esther Titilayo, Jen, T. C.
- Authors: Adeniran, J. A. , DeKoker, J. J. , Akinlabi, Esther Titilayo , Jen, T. C.
- Date: 2017
- Subjects: Hydrogen generation , Hydrolysis , Ball milling
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/231926 , uj:23640 , Citation: Adeniran, J.A. et al. 2017. Sustainable hydrogen generation substrates, catalysts and methods : an overview.
- Description: Abstract: Because of the increasing demand for energy, various alternative sources of energy generation are being examined. Interest in hydrogen generation is on the rise due to its potential as a scalable green energy source, its transportability, and other positive factors. While various studies have been conducted on hydrogen generation, this review explores three major factors in hydrogen generation in relation to sustainability: substrates or hydrogen storage media, catalysts for speeding up the rate of hydrogen reaction, and methods employed. The media used to store the hydrogen, such as metal hydrides and complex hydrides, is examined in relationship to hydrogen yield, ease of hydrogen generation or treatment, cost and environmental friendliness. A list of popular catalysts - particularly precious/rare earth metals, strong acids and weak acids - is examined and compared in terms of hydrogen yield, environmental friendliness, and cost. The recent trend in hydrogen generation techniques and material treatment innovations such as hydrolysis, and ball milling of nanocomposites is examined. Innovations in hydrogen storage material selection and techniques will go a long way in lowering hydrogen generation cost, increasing hydrogen yield and ameliorating negative environmental impacts.
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- Authors: Adeniran, J. A. , DeKoker, J. J. , Akinlabi, Esther Titilayo , Jen, T. C.
- Date: 2017
- Subjects: Hydrogen generation , Hydrolysis , Ball milling
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/231926 , uj:23640 , Citation: Adeniran, J.A. et al. 2017. Sustainable hydrogen generation substrates, catalysts and methods : an overview.
- Description: Abstract: Because of the increasing demand for energy, various alternative sources of energy generation are being examined. Interest in hydrogen generation is on the rise due to its potential as a scalable green energy source, its transportability, and other positive factors. While various studies have been conducted on hydrogen generation, this review explores three major factors in hydrogen generation in relation to sustainability: substrates or hydrogen storage media, catalysts for speeding up the rate of hydrogen reaction, and methods employed. The media used to store the hydrogen, such as metal hydrides and complex hydrides, is examined in relationship to hydrogen yield, ease of hydrogen generation or treatment, cost and environmental friendliness. A list of popular catalysts - particularly precious/rare earth metals, strong acids and weak acids - is examined and compared in terms of hydrogen yield, environmental friendliness, and cost. The recent trend in hydrogen generation techniques and material treatment innovations such as hydrolysis, and ball milling of nanocomposites is examined. Innovations in hydrogen storage material selection and techniques will go a long way in lowering hydrogen generation cost, increasing hydrogen yield and ameliorating negative environmental impacts.
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