Article
Materials Science, Multidisciplinary
Farai Michael Nyahuma, Liuting Zhang, Mengchen Song, Xiong Lu, Beibei Xiao, Jiaguang Zheng, Fuying Wu
Summary: This study investigates the excellent modification effect of Nb nanocatalyst prepared via surfactant assisted ball milling technique on the hydrogen storage properties of MgH2. The results show that the MgH2-5wt%Nb composite exhibits improved hydrogen storage performance, with a lower hydrogen release/absorption temperature and higher cycling stability.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Jingjing Zhang, Bing Zhang, Xiubo Xie, Cui Ni, Chuanxin Hou, Xueqin Sun, Xiaoyang Yang, Yuping Zhang, Hideo Kimura, Wei Du
Summary: This paper reviews recent advances in the nanoconfinement of Mg-based hydrogen storage materials by loading Mg particles on different supporting materials and discusses the prospects for designing high-performance Mg-based materials using nanoconfinement.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
YongJun Cho, ShinYoung Kang, Brandon C. Wood, Eun Seon Cho
Summary: Nanoencapsulation using graphene derivatives allows the fabrication of two-dimensional nanocomposites with unique microstructures. This study focuses on using B-doped and N-doped graphene as nanoencapsulation media to alter the hydrogen storage kinetics of graphene-Mg composites. The addition of foreign nonmetal elements improves hydrogen uptake and accelerates absorption kinetics through charge transfer and surface deformation of Mg nanoparticles.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Thi Thu Le, Claudio Pistidda, Van Huy Nguyen, Pardeep Singh, Pankaj Raizada, Thomas Klassen, Martin Dornheim
Summary: This review discusses the progress in using metal hydrides and complex metal hydrides as solid-state hydrogen storage materials, as well as improving their performance through nanoconfinement. Researchers believe that magnesium hydride and lithium borohydride are promising solid-state hydrogen storage materials, but issues of thermodynamic stability and kinetics need to be addressed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Wen Zhu, Li Ren, Chong Lu, Hao Xu, Fengzhan Sun, Zhewen Ma, Jianxin Zou
Summary: This study introduces a novel method to address the stacking and oxidation issues of MXenes in nanoconfinement, successfully achieving the anchored growth of MgH2 nanoparticles on the surface of 3D Ti3C2Tx, leading to improved hydrogen sorption performances.
Article
Chemistry, Physical
Pawan K. Soni, Ashish Bhatnagar, M. A. Shaz
Summary: In this study, the synergistic effect of Fe nanoparticles and hollow carbon spheres composite on the hydrogen storage properties of MgH2 was investigated. The MgH2-Fe-HCS system exhibited an onset desorption temperature of 225.9 degrees C and a hydrogen storage capacity of 5.60 wt%. The MgH2-Fe-HCS composite absorbed 5.60 wt% hydrogen within 55 s and desorbed 5.50 wt% hydrogen within 12 min under 20 atm H2 pressure at 300 degrees C. The desorption activation energy of MgH2-Fe-HCS was found to be 84.9 kJ/mol. The composite also showed better cyclability up to 24 cycles of hydrogenation and dehydrogenation of MgH2.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Liang Dan, Hui Wang, Xiaobao Yang, Jiangwen Liu, Liuzhang Ouyang, Min Zhu
Summary: This study demonstrates the significant improvement of hydrogen sorption performances of MgH2 by synthesizing Nb-doped TiO2 solid-solution-type catalysts. The catalyzed MgH2 is able to absorb 5% of H2 at room temperature for 20 seconds, release 6% of H2 at 225 degrees C within 12 minutes, and achieve complete dehydrogenation at 150 degrees C under a dynamic vacuum atmosphere. The success of solid solution-type catalysts in MgH2 provides a demonstration and inspiration for the development of high-performance catalysts and solid-state hydrogen storage materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Samuel Guemou, Liuting Zhang, Shuai Li, Yiqun Jiang, Tao Zhong, Zichuan Lu, Ren Zhou, Fuying Wu, Qian Li
Summary: A novel Ni-Nb/rGO nanocomposite catalyst was prepared and shown to exhibit exceptional catalytic effect in improving the sorption properties of magnesium hydride (MgH2). The composite catalyst significantly reduced the desorption temperature of MgH2, increased the hydrogen release capacity, and enabled hydrogen absorption even at room temperature. The addition of the composite catalyst was found to enhance the sorption kinetics and cycling property of MgH2.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Nanoscience & Nanotechnology
Qiwen Lai, Chulaluck Pratthana, Yuwei Yang, Aditya Rawal, Kondo-Francois Aguey-Zinsou
Summary: The thermodynamic behavior of complex borohydrides confined in mesoporous hollow carbon spheres was investigated, showing no variation of equilibrium plateau pressure upon changes in the hydrogen sorption temperatures. This is interpreted as a result of the high pressure within the carbon nanopores, providing a means to control the thermodynamics of nanosized hydrides.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Uiseok Jeong, HyeonJi Kim, Sreerangappa Ramesh, Nesibe A. Dogan, Sirinapa Wongwilawan, Sungsu Kang, Jungwon Park, Eun Seon Cho, Cafer T. Yavuz
Summary: A new and rapid synthetic route for N-doped ordered mesoporous carbon structure was reported by preferential heating of iron oxide nanoparticles by microwaves. The well-defined cubic mesoporous carbon structure showed remarkable improvement in hydrogen desorption kinetics as a host scaffold for NaAlH4, attributed to their ordered pore structure and N-doping effect.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Kaicheng Xian, Meihong Wu, Mingxia Gao, Shun Wang, Zhenglong Li, Panyu Gao, Zhihao Yao, Yongfeng Liu, Wenping Sun, Hongge Pan
Summary: This research synthesizes a 2D nanoflake-shaped bimetallic oxide catalyst (TiNb2O7) with high surface area for MgH2 hydrogen storage. The addition of TiNb2O7 nanoflakes greatly improves the hydrogen storage performance of MgH2, lowering the onset dehydrogenation temperature by 100 degrees C and increasing the dehydrogenation capacity and cycling stability.
Article
Chemistry, Physical
Yang Meng, Shunlong Ju, Wei Chen, Xiaowei Chen, Guanglin Xia, Dalin Sun, Xuebin Yu
Summary: By fabricating V4Nb18O55 microspheres, the H-2 desorption and absorption properties of MgH2 can be improved and the uniform formation of Nb/V interfaces can be achieved, resulting in the reduction of dehydrogenation temperature of MgH2 and the enhancement of hydrogenation reaction rate.
Article
Metallurgy & Metallurgical Engineering
Liang Zeng, Zhiqiang Lan, Baobao Li, Huiren Liang, Xiaobin Wen, Xiantun Huang, Jun Tan, Haizhen Liu, Wenzheng Zhou, Jin Guo
Summary: Carbon-supported Ni3S2 catalyst can effectively improve the hydrogen storage performance of MgH2, enhancing its hydrogenation/dehydrogenation kinetics and hydrogen absorption/release capacities. The improvement is attributed to the multi-phase catalytic action of C, Mg2Ni, and MgS formed by the reaction between Ni3S2 and Mg.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
V. V. Berezovets, R. Denys, I. Yu Zavaliy, Yu Kosarchyn
Summary: MgH2-based nanocomposites were synthesized using reactive ball milling and various catalytic additives. The additives improved the hydrogen absorption-desorption kinetics and stability of the composites. Nano-Ti showed the most stable hydrogen absorption-desorption characteristics compared to TiO2 and Ti4Fe2Ox additives.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Kanhaiya Chawla, Deepak Kumar Yadav, Abhinav Bajpai, Sushant Kumar, I. P. Jain
Summary: The effect of PdCl2 on the hydrogenation properties of Mg/MgH2 was investigated in this study. The results show that the addition of PdCl2 improves the hydrogen storage capacity and onset temperature of the Mg/MgH2 nanocomposites.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
