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)
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
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, Physical
Shuyan Guan, Lulu An, Yumei Chen, Mingbin Li, Jianchao Shi, Xianyun Liu, Yanping Fan, Baojun Li, Baozhong Liu
Summary: In this study, ultrathin carbon stabilized Co-doped CoxOy nanofilms (C-Co/CoxOy NFs) were successfully prepared using an ionic liquid/water interface strategy for hydrogen generation from NaBH4 hydrolysis. The 2D NF catalyst exhibited remarkable activity, with a hydrogen generation rate of 8055 mL.min(-1).g(Co)(-1) and could be recycled more than 20 times, surpassing most reported metal-based catalysts. The exceptional 2D Co-based NF structures with numerous active sites assisted in the activation of NaBH4 and water molecules, promoting hydrogen production effectively.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
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
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
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
Dilek Kilinc, Omer Sahin
Summary: In this study, an efficient, environmentally friendly, and stable catalyst was developed for the hydrogen evolution from sodium borohydride hydrolysis. The Ru complex catalyst was successfully synthesized and demonstrated promising durability and catalytic performance. The kinetic performance and mechanism of the catalyst were investigated, providing insights for the rational design and utilization of ruthenium complexes in hydrogen evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Yongyang Zhu, Jianding Li, Limei Yang, Xu-Sheng Yang, Qing Zhou, Renheng Tang, Shaoyang Shen, Liuzhang Ouyang
Summary: Metal borohydrides have high hydrogen storage capacities and are extensively studied. However, developing a low-cost and high-efficiency closed loop of hydrolysis and regeneration is challenging. This work provides an overview of the latest advances in hydrolysis and regeneration processes of Li(Na)BH4 and Mg(BH4)2, with a focus on NaBH4 hydrolysis and regeneration. The development of catalysts, synthesis techniques, and reducing agents for NaBH4 regeneration are discussed. The use of low-cost transition metal-based catalysts has shown great potential for catalyzing the hydrolysis reaction.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Jifeng Deng, Kurbannisa Kadeer, Chaoyuan Hu, Zewei Xie, Yu Shi, Xiao Liu, Lei Xie, Jinrong Xu, Jie Zheng, Xingguo Li
Summary: In this study, a sponge catalyst for hydrogen generation from liquid hydrogen carriers was developed. The commercial melamine formaldehyde (MF) sponge was modified by grafting polyvinyl alcohol (PVA) through acid-catalyzed acetalization with formaldehyde. The resulting polyvinyl formal/MF (PVF/MF) composite sponge exhibited excellent characteristics as a catalyst, including high activity, high hydrogen storage density, easy catalyst recycling, and quasi-solid state behavior during H-2 generation, as demonstrated in the applications of NaBH4 solution and thermal dehydrogenation of perhydro N-ethylcarbazole.
JOURNAL OF POWER SOURCES
(2023)
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
Energy & Fuels
Cafer Saka
Summary: Heterojunction catalysts have better catalytic effects compared to single-component catalysts in the field of catalytic reactions. In this study, a metal-free catalyst g-C3N4-TiO2-P was synthesized through a three-step process and used for efficient hydrogen release from NaBH4 methanolysis. The catalyst exhibited good activity and reusability, and the mechanism of H2 production was explored.
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
Ibrahim Gozeten, Kadir Karakas, Yasar Karatas, Mehmet Tunc, Mehmet Gulcan
Summary: This study focuses on the production of hydrogen from sodium borohydride in a methanolysis environment using ruthenium nanoparticles impregnated on a halloysite support material. The newly synthesized nanocatalyst showed excellent activity and reusability in the catalytic methanolysis reaction. The material analysis confirmed the homogeneous distribution of ruthenium nanoparticles on the support material. Kinetic studies were conducted to calculate the kinetic parameters and determine the rate equation for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Biomedical
Dominic M. Casali, Michael J. Yost, Michael A. Matthews
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2018)
Article
Chemistry, Physical
Dominic M. Casali, Rachel M. Handleton, Tarek Shazly, Michael A. Matthews
JOURNAL OF SUPERCRITICAL FLUIDS
(2018)
Article
Engineering, Chemical
Amy M. Beaird, Thomas A. Davis, Michael A. Matthews
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2010)
Article
Engineering, Chemical
Amy M. Beaird, Ping Li, Hilary S. Marsh, W. A. Al-Saidi, J. Karl Johnson, Michael A. Matthews, Christopher T. Williams
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2011)
Article
Engineering, Chemical
Ping Li, Lin Yu, Michael A. Matthews, Wissam A. Saidi, J. Karl Johnson
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2013)
Article
Chemistry, Physical
Hong Liu, Christopher M. Boyd, Amy M. Beaird, Michael A. Matthews
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2011)
Article
Chemistry, Physical
Lin Yu, Michael A. Matthews
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2011)
Article
Chemistry, Physical
Lin Yu, Perry Pellechia, Michael A. Matthews
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2014)
Article
Chemistry, Physical
Rajasree Retnamma, A. Q. Novais, C. M. Rangel, Lin Yu, Michael A. Matthews
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2014)
Article
Chemistry, Physical
Pedro J. Tarafa, Aidaris Jimenez, Jian Zhang, Michael A. Matthews
JOURNAL OF SUPERCRITICAL FLUIDS
(2010)
Article
Chemistry, Physical
Pedro J. Tarafa, Eve Williams, Samir Panvelker, Jian Zhang, Michael A. Matthews
JOURNAL OF SUPERCRITICAL FLUIDS
(2011)
Article
Chemistry, Organic
Praneshwar Sethupathy, Inas M. Alnashef, John R. Monnier, Michael A. Matthews, John W. Weidner
SYNTHETIC COMMUNICATIONS
(2012)
Article
Electrochemistry
Praneshwar K. Sethupathy, Inas AlNashef, Michael A. Matthews, John W. Weidner
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY
(2013)
Article
Electrochemistry
Praneshwar K. Sethupathy, John R. Monnier, Michael A. Matthews, John W. Weidner
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY
(2013)