Article
Chemistry, Multidisciplinary
Lucia Gomez-Coma, Diogo L. Silva, Alfredo Ortiz, Carmen M. Rangel, Victor Manuel Ortiz-Martinez, Alexandra M. F. R. Pinto, Inmaculada Ortiz
Summary: Finding stable solutions for hydrogen storage is crucial for its widespread usage as an energy source and to reduce carbon emissions. This study examines the effects of non-toxic and environmentally friendly additives on the hydrolysis process for releasing hydrogen. Sodium carboxymethyl cellulose and polyacrylamide show promising results as additives for efficient hydrogen production.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Jikai Ye, Guanglin Xia, Xuebin Yu
Summary: By reacting graphene-wrapped Al with LiBH4, this study achieved the destabilization of LiBH4, improving the reaction efficiency between LiBH4 and Al and demonstrating complete dehydrogenation and hydrogenation of LiBH4.
MATERIALS TODAY ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Muhammad Saad Salman, Muhammad Zubair, Yuwei Yang, Nicholas M. Bedford, Kondo-Francois Aguey-Zinsou
Summary: In this study, vanadium-doped NaBH4 nanocubes and the related core-shell structure (V-NaBH4@Ni) were found to significantly lower the hydrogen release temperature to 355 degrees C. The improved hydrogen release was attributed to the synergistic effects of the unique core-shell structure and the formation of intermediate borides (VxBy and NixBy) at the core-shell interface, which enhanced electron transfer and triggered hydrogen release at lower temperatures.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Physical
Umit B. Demirci
Summary: Sodium borohydride (NaBH4) has been considered as a promising hydrogen storage material, but its hydrolysis still faces numerous obstacles. This article aims to assess the progress made in hydrolysis of NaBH4 and summarize the newly acquired knowledge.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Energy & Fuels
Carlos A. Castilla-Martinez, Romain Moury, Salem Ould-Amara, Umit B. Demirci
Summary: Boron-based materials have been extensively studied for hydrogen storage applications, but various destabilization strategies have been developed to improve their properties. This review provides an overview of recent advances in destabilization strategies for selected boron-based compounds from 2015 to 2021.
Article
Engineering, Environmental
Geo Jong Kim, Hyun Tae Hwang
Summary: Hydrogen from sodium borohydride can be generated by thermolysis or hydrolysis, but both methods have drawbacks such as high temperatures required or safety concerns. A new process, thermal hydrolysis of SBH, is proposed to address these issues and achieve efficient hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
A. G. Olabi, Adel Saleh Bahri, Aasim Ahmed Abdelghafar, Ahmad Baroutaji, Enas Taha Sayed, Abdul Hai Alami, Hegazy Rezk, Mohammad Ali Abdelkareem
Summary: Hydrogen has been identified as the most promising carrier of clean energy in the efforts to replace fossil fuels. Hydrogen generation technologies play a key role in the energy mix and integrating them with other renewable energy systems is becoming increasingly feasible. While progress has been made in large-scale production and storage of hydrogen, local conditions and multiple strategies may be needed to achieve significant production and storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Nicholas A. Strange, Noemi Leick, Sarah Shulda, Andreas Schneemann, Vitalie Stavila, Andrew S. Lipton, Michael F. Toney, Thomas Gennett, Steven T. Christensen
Summary: Magnesium borohydride is a promising material for hydrogen storage, but its slow dehydrogenation kinetics and formation of intermediate polyboranes limit its application in clean energy technologies. This study presents a novel approach of modifying the physicochemical properties of magnesium borohydride by adding reactive molecules in the vapor phase. The effects of four different molecules on the additive-Mg(BH4)(2) interaction and hydrogen release at lower temperatures are examined. The results demonstrate the efficacy of this approach and provide a new path for additive-based modification of hydrogen storage materials.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Cafer Saka
Summary: A hybrid g-C3N4-SiO2-N composite was successfully produced using calcination and hydrothermal methods. The composite catalyst showed excellent catalytic performance in the H2 production reaction from NaBH4 methanolysis, with a high hydrogen generation rate and good durability.
Article
Energy & Fuels
Xiugang Li, Nan Yang, Xingmei Cen, Siyuan Li, Lingyu Zhang, Zhang-Hui Lu
Summary: A nitrogen-rich hollow porphyrin framework (H-POF) was synthesized using SiO2 as a template, and ultrafine Ni nanoparticles (NPs) were confined on its surface using an ultrasonic impregnation reduction method. The resulting Ni/H-POF catalyst exhibited exceptional catalytic performance in the methanolysis of NaBH4, with a hydrogen generation rate (HGR) value of 34720 mL·min-1·gmetal-1, surpassing all previously reported heterogeneous catalysts with NaOH. Experimental investigation revealed that the high catalytic activity can be attributed to the large specific surface area and hollow structure of the support, small size of the metal NPs, and the electron-donating effect of nitrogen atoms on the metal NPs. Isotopic experiments confirmed that the breaking of the O-H bond in CH3OH is the rate-determining step (RDS) of NaBH4 methanolysis. This work provides valuable insights for the rational design of nitrogen-rich hollow framework materials for supporting ultrafine metal NPs, which have potential applications in future energy-related fields.
Article
Chemistry, Multidisciplinary
Yongyang Zhu, Hao Zhong, Hui Wang, Liuzhang Ouyang, Jiangwen Liu, Zhenguo Huang, Min Zhu
Summary: A new method for synthesizing sodium borohydride using ball milling hydrated sodium tetraborate with aluminum or aluminum-silicon alloy has been developed to facilitate mass transfer during the reaction and reduce costs. This method also utilizes hydrogen from the starting materials to generate sodium borohydride, showing potential for more economical production compared to commercial processes.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Xianzhi Yin, Meiling Hou, Kai Zhu, Ke Ye, Jun Yan, Dianxue Cao, Dongming Zhang, Jiaxin Yao, Guiling Wang
Summary: A novel electrode of PdCu nanoparticles modified rGO framework was fabricated and exhibited excellent catalytic performance for DBHPFC. The superior performance of the optimized electrode can be attributed to its unique structure and the strong adsorption and bond-breaking ability of Pd nanoparticles.
Article
Chemistry, Physical
Qusay Hassan, Aws Zuhair Sameen, Olushola Olapade, Mohammad Alghoul, Hayder M. Salman, Marek Jaszczur
Summary: A large amount of non-dispatchable photovoltaic and wind power is planned in smart cities, but the problem of massive energy storage has not been solved, limiting the use of green energy on a larger scale. Currently, the only available battery energy storage is effective for storing modest quantities of energy for short periods of time. The alternative option is to use electrolyzers to generate hydrogen from green energy and use it to stabilize the grid, but this solution is not widely implemented yet.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Physics, Applied
Juan Mu, Yongqing Ye, Jiale Wang, Zhengwang Zhu, Yandong Wang, Haifeng Zhang
Summary: The ribbon catalyst made of high-entropy alloy shows excellent catalytic performance for the hydrolysis of NaBH4, with the exposure of Co and Ni atoms during acid solution corrosion contributing to the increased specific surface area and formation of vacancies and dislocations. This research paves the way for the application of macroscopic scale high-entropy alloy in the catalytic hydrogen field.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Kaaviah Manoharan, Vasantha Kumar Palaniswamy, Kannan Raman, Rajashabala Sundaram
Summary: This study focuses on the effective storage of hydrogen using NaBH4/Ah-BN nanocomposite, which shows enhanced specific surface area and favorable binding energy for hydrogen storage. Thermal analysis confirms a two-step dehydrogenation process, while electrochemical testing reveals high discharge capacity and hydrogen storage efficiency. Overall, the prepared NaBH4/Ah-BN nanocomposite demonstrates promising potential as a hydrogen storage system and electrode material for hydrogen fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
I. Saldan, C. Frommen, I. Llamas-Jansa, G. N. Kalantzopoulos, S. Hino, B. Arstad, R. H. Heyn, O. Zavorotynska, S. Deledda, M. H. Sorby, H. Fjellvag, B. C. Hauback
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2015)
Article
Multidisciplinary Sciences
L. Michels, J. O. Fossum, Z. Rozynek, H. Hemmen, K. Rustenberg, P. A. Sobas, G. N. Kalantzopoulos, K. D. Knudsen, M. Janek, T. S. Plivelic, G. J. da Silva
SCIENTIFIC REPORTS
(2015)
Article
Chemistry, Applied
G. N. Kalantzopoulos, A. Policicchio, E. Maccallini, I. Krkljus, F. Ciuchi, M. Hirscher, R. G. Agostino, G. Golemme
MICROPOROUS AND MESOPOROUS MATERIALS
(2016)
Article
Chemistry, Physical
Georgios N. Kalantzopoulos, Myrsini K. Antoniou, Apostolos Enotiadis, Konstantinos Dimos, Enrico Maccallini, Alfonso Policicchio, Elio Colavita, Raffaele G. Agostino
JOURNAL OF MATERIALS CHEMISTRY A
(2016)
Article
Chemistry, Physical
Daniel Rojo-Gama, Lukasz Mentel, Georgios N. Kalantzopoulos, Dimitrios K. Pappas, Iurii Dovgaliuk, Unni Olsbye, Karl Petter Lillerud, Pablo Beato, Lars F. Lundegaard, David S. Wragg, Stian Svelle
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2018)
Article
Chemistry, Physical
I. Buerger, J. J. Hu, J. G. Vitillo, G. N. Kalantzopoulos, S. Deledda, M. Fichtner, M. Baricco, M. Linder
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2014)
Article
Multidisciplinary Sciences
Leide P. Cavalcanti, Georgios N. Kalantzopoulos, Juergen Eckert, Kenneth D. Knudsen, Jon Otto Fossum
SCIENTIFIC REPORTS
(2018)
Article
Energy & Fuels
Fredrik Lundvall, Georgios N. Kalantzopoulos, David S. Wragg, Bjornar Arstad, Richard Blom, Anja O. Sjastad, Helmer Fjellvag
Article
Chemistry, Physical
Georgios N. Kalantzopoulos, Fredrik Lundvall, Knut Thorshaug, Anna Lind, Ponniah Vajeeston, Iurii Dovgaliuk, Bjornar Arstad, David S. Wragg, Helmer Fjellvag
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Applied
Farnoosh Goodarzi, Irene Pinilla Herrero, Georgios N. Kalantzopoulos, Stian Svelle, Andrea Lazzarini, Pablo Beato, Unni Olsbye, Soren Kegnaes
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Tina Gulin-Sarfraz, Georgios N. Kalantzopoulos, Marit Kvalvag Pettersen, Anette Wold Asli, Ingunn Tho, Lars Axelsson, Jawad Sarfraz
Summary: The study evaluated the feasibility of porous silica particles and nanoclays as encapsulation matrices for natural antimicrobial substances in food packaging applications. Different carriers showed significant differences in their loading capability and subsequent release of volatile and non-volatile compounds. Selection of the right nanocarrier for a specific food packaging application should be based on the particular characteristics and requirements of the substances being encapsulated.
Article
Chemistry, Physical
David S. Wragg, Georgios N. Kalantzopoulos, Dimitrios K. Pappas, Irene Pinilla-Herrero, Daniel Rojo-Gama, Evgeniy Redekop, Marco Di Michiel, Pablo Beato, Lars F. Lundegaard, Stian Svelle
Summary: The study used operando X-ray diffraction computed tomography to investigate the deactivation process of a zeolite/alumina based catalyst extrudate in the methanol-to-hydrocarbon reaction. The results showed that the core of the catalyst body remained unaffected by the reaction, even when the reactor output indicated zero activity.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Georgios N. Kalantzopoulos, Fredrik Lundvall, Stefano Checchia, Anna Lind, David S. Wragg, Helmer Fjellvag, Bjornar Arstad
Proceedings Paper
Green & Sustainable Science & Technology
Fredrik Lundvall, Georgios N. Kalantzopoulos, David S. Wragg, Bjornar Arstad, Richard Blom, Anja Olafsen Sjastad, Helmer Fjellvag
13TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-13
(2017)