Article
Materials Science, Multidisciplinary
Dong -Guang Liu, Lin Meng, Jin -Xin Zou, Lai -Ma Luo, Yu -Cheng Wu
Summary: A dense and uniform W-15Cu composite material was successfully prepared by adding different amounts of silver as the active agent. Adding an appropriate amount of silver during direct sintering and infiltration improved the relative density and thermal conductivity of the composite material. Fracture morphology analysis showed enhanced interfacial bonding and formation of an ideal network structure by the addition of silver.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jun-Yu Tang, Lai-Ma Luo, Zhen Liu, Xiang Zan, Yu-Cheng Wu
Summary: Direct melt infiltration of WC green parts without pre-sintered skeletons resulted in carbides with excellent shrinkage and properties, providing a simplified and high shape-retention method for other alloys that can be prepared through melt infiltration.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Rina K. Mudanyi, Corson L. Cramer, Amy M. Elliott, Kinga A. Unocic, Qianying Guo, Dhananjay Kumar
Summary: W-ZrC composites were successfully prepared by reactive melt infiltration, with the processing time affecting phase conversion and hardness. Un-sintered WC preforms exhibited better infiltration compared to sintered ones, and longer reaction times led to increased W and ZrC phases.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Mohammad Reza Nilforoushan, Parya Kazemzadeh, Behzad Babaei, Morteza Tayebi, Mohammad Yaghoubi
Summary: In this study, ZrB2/SiC composite was synthesized by infiltrating silicon melt into a ZrSiO4/B4C preform, and the effect of different ratios of ZrSiO4/B4C and C/ZrSiO4 on phase and microstructural properties was investigated. The optimum results were obtained for the composite sample with a ZrSiO4/B4C ratio of 4, showing a density of 5.28 g cm(-3), elastic modulus of 423 GPa, and hardness of 33.28 GPa. The analyses confirmed a uniform distribution of ZrB2 and SiC phases in the sample.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Ceramics
Wei Li, Congcong Cui, Jianxun Bao, Ge Zhang, Shan Li, Gong Wang
Summary: Utilizing SLA/RMI technology for SiC ceramic components fabrication enables complex shapes and high precision, improving optical performance and thermal conductivity by increasing SiC content and enhancing strength of sintered body. The best comprehensive properties were achieved with 40wt% phenolic resin solution concentration.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Weitao Gao, Li Sheng, Jia Chen, Fan Gong, Zhuozhuo Tang, Qinan Yin, Kai Yang, Ziqiang Tu, Yang Li, Li Wang, Jianlong Wang, Yaping Tang, Hong Xu, Cheng Wang, Xiangming He
Summary: Sulfonated polymers are widely used in fuel cells as proton-conducting materials and their ionic transport features make them attractive for electrolytes in lithium-ion/metal batteries. This study demonstrates the use of swollen nanofibrous Nafion as effective Li+-conducting channels, which enhances Li+ transport by forming a porous ionic matrix and promoting partial desolvation of Li+-solvates. The application of this membrane in Li-symmetric cells and Li-metal full cells shows excellent cycling performance and stabilized Li-metal anode, providing a strategy to convert sulfonated polymers into efficient Li+ electrolytes and promoting the development of high-energy-density LMBs.
Article
Chemistry, Applied
P. H. Keijzer, B. Donoeva, K. P. de Jong, P. E. de Jongh
Summary: This study investigates the synthesis of supported silver catalysts using melt infiltration, which shows great promise for high silver weight loadings. In selective oxidation or hydrogenation reactions, silver nanowires demonstrate superior activity and selectivity compared to nanoparticles.
Article
Chemistry, Physical
Eui Hyun Cho, Namgi Jeon, Byung Sun Yoon, Sujin Kim, Yongju Yun, Chang Hyun Ko
Summary: The dispersion of active metal species is crucial for efficient catalytic reactions. Surfactant-assisted melt infiltration (SAMI) method was used to synthesize highly dispersed Ni catalysts on zeolites. The addition of surfactant and Mg promoter improved the catalytic performance and stability of the catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhiqiang Liu, Qiangang Fu, Huilun Shi, Jiaping Zhang, Yujun Jia
Summary: C/C-SiC-HfC composites were prepared using reactive melt infiltration (RMI) with different pressure conditions. The distribution of SiC and HfC ceramics can be regulated by adjusting the RMI pressure, resulting in different surface compositions. The composites prepared under normal pressure exhibited better ablation performance with the formation of a HfSi2-HfC-SiC mixed layer. The presence of HfSi2 improved the densification of HfO2 film, enhancing the ablation resistance.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Pengyu Chen, Yaping Wang
Summary: The novel method of creating an architectured Ag/SnO2 composite by bonding individual SnO2 particles into a skeleton improves arc erosion resistance compared to traditional dispersed composites, showing better performance.
Article
Materials Science, Ceramics
Rida Zhao, Shengyang Pang, Chenglong Hu, Jian Li, Bin Liang, Sufang Tang, Hui-Ming Cheng
Summary: RMI-C/SiC composites fabricated using a carbon fiber reinforced nanoporous carbon matrix preform demonstrate high performance with dense and pure SiC matrix and intact carbon fibers. In contrast, composites based on conventional pyrocarbon or resin carbon matrixes show poorer properties with less SiC, residual silicon and carbon, and corroded fibers. This work opens up a new way for the development of high-performance ceramic matrix composites by siliconizing C/C preforms with nanoporous carbon matrix.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Laura Silvestroni, Antonio Vinci, Nicola Gilli, Luca Zoli, Diletta Sciti, Dietmar Koch, Marius Kuetemeyer
Summary: The reactions between a Zr2Cu melting phase and compounds for ultra-refractory ceramic matrix composites, including SiC, TiB2, and ZrB2, were investigated. The results confirmed the good infiltration capability of the melt. A multiphasic ultra-high temperature ceramic matrix composite was prepared through reactive melt infiltration (RMI) using a TiB2-coated carbon fiber preform infiltrated with Zr2Cu. A second composite was prepared by introducing an additional ZrB2-B infiltration step to reduce the processing temperature and limit fiber damage. The combination of factors on multiple length scales provides synergistic reinforcing phenomena for developing materials for extreme environments.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Rida Zhao, Shengyang Pang, Bing Liang, Jian Li, Chenglong Hu, Sufang Tang, Hui-Ming Cheng
Summary: The ablation behaviors of C/SiC-ZrC and C/SiC-HfC composites were investigated, revealing differences in the ablation rates and the impact of the formed oxide products on the ablation resistance at different temperatures.
Article
Materials Science, Ceramics
Yonggang Tong, Bin Wang, Yongle Hu, Manyu Hua, Kun Han, Hongji Shen, Peng Zhang, Yang Li
Summary: Carbon fiber reinforced TiC-based composites modified with Cu based alloys were fabricated using alloyed reactive melt infiltration method. The Cu content was found to affect the microstructure, mechanical strength and tribological properties of the composites. Decreasing Cu content resulted in more TiC matrix in the composites. The composites prepared with higher Cu content demonstrated enhanced mechanical properties and good wear resistance. The introduction of Cu based alloy matrix into the composites greatly improved the abrasive performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Davide Vigano, Riccardo Balzarotti, Oscar Santoliquido, Alice Rosa, Marco Pelanconi, Giovanni Bianchi, Alberto Ortona
Summary: This work proposes a new indirect additive manufacturing technique using investment casting to produce tungsten-copper composites with triply periodic minimal surface geometries. The process combines stereolithography and molten copper casting to create complex architectures and control the volume fractions of W and Cu, tailoring the properties of the composite.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Clarissa Abetz, Prokopios Georgopanos, Claudio Pistidda, Thomas Klassen, Volker Abetz
Summary: Hydrogen is crucial for the transition to a sustainable future without CO2 emissions. It can be produced from renewable energy sources like solar and wind power and used to buffer energy fluctuations in all sectors. Safe and efficient storage options, such as metal hydride materials, are essential for hydrogen technology implementation.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Carmen Tenholt, Daniel Hoeche, Mauricio Schieda, Thomas Klassen
Summary: Most research on photo-electrochemical (PEC) cells for water splitting has been based on simulations and experiments on laboratory scales. This study investigates the effects of stepwise upscaling of PEC cells and develops a computer-aided reference model to predict their behavior on different scales. Machine learning via Bayesian optimization is employed to optimize the simulation model input parameters, resulting in good agreement with measured current-voltage curves.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Torben R. Jensen, Mads B. Amdisen, Jakob B. Grinderslev, Lasse N. Skov
Summary: Solid-state magnesium electrolytes are crucial for the development of rechargeable batteries with high capacities, yet there is a lack of electrolytes that meet the requirements. In this study, six new compounds of methylamine magnesium borohydride were synthesized and their properties were investigated. One of the compounds showed a record high ionic conductivity of Mg2+ and exhibited stability towards magnesium electrodes.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Lasse G. Kristensen, Mads B. Amdisen, Mie Andersen, Torben R. Jensen
Summary: The discovery of new inorganic magnesium electrolytes may lead to the development of novel solid-state batteries through the investigation of a new type of organic-inorganic metal hydride with hydrophobic domains. The structure of this metal hydride was determined and its properties were optimized through various methods. Nanoparticles and heat treatment were found to enhance the conductivity and stability of the composite material.
Article
Electrochemistry
Lasse N. Skov, Jakob B. Grinderslev, Torben R. Jensen
Summary: This study presents the first cathode investigation of an inorganic all-solid-state magnesium battery, using a magnesium metal anode, a nanocomposite electrolyte, and a layered titanium disulfide as the cathode active material. The structural transformations of different-sized titanium disulfide particles are studied at different stages of the battery life. The reversible magnesium intercalation occurs in three structurally distinct phases, and a maximum discharge capacity is observed for smaller titanium disulfide particles.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Inorganic & Nuclear
Filippo Peru, Seyedhosein Payandeh, Torben R. Jensen, Georgia Charalambopoulou, Theodore Steriotis
Summary: A composite material of 0.71 LiBH4-0.29 NaBH4 and CMK-3 carbon with nanopores was successfully synthesized, showing improved hydrogen absorption-desorption kinetics. After five cycles, the composite maintained a consistent uptake of about 3.5 wt.% H-2. The enhanced kinetics were attributed to carbon-hydride surface interactions and the heat transfer capability of the carbon support. The nanopore confinement may also contribute to the improved reversibility.
Review
Materials Science, Multidisciplinary
Xiao Li, Yigang Yan, Torben R. Jensen, Yaroslav Filinchuk, Iurii Dovgaliuk, Dmitry Chernyshov, Liqing He, Yongtao Li, Hai-Wen Li
Summary: Mg(BH4)2 is a high capacity hydrogen storage material with new functions of gas physisorption and ionic conductivity. This review summarizes the recent progress on its energy related functions, including reversible hydrogen storage, gas adsorption, and electrolyte application.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Chongyang Zhou, Yigang Yan, Torben R. Jensen
Summary: The introduction of LiBH4 into Li2B12H12-5Li(2)B(10)H(10) improves its electrochemical window to 3.0 V and Li-ion conductivity to 1.0 x 10(-4) S cm(-1) at room temperature. Moreover, the Li(2)B(12)H(12)-5Li(2)B(10)H(10)-6LiBH(4) electrolyte exhibits good compatibility with a metallic Li anode and TiS2 cathode, allowing stable operation of the all-solid-state cell for 120 cycles with high capacity and coulombic efficiency. This work demonstrates the potential of a hydroborate electrolyte for the development of high voltage all-solid-state batteries.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jakob B. Grinderslev, Lasse N. Skov, Torben R. Jensen
Summary: Utilization of next-generation all-solid-state lithium batteries requires new fast Li-ion conducting solid electrolytes. LiBH4-based materials have shown promising high ionic conductivity at room temperature. A new compound, hemi-methylamine lithium borohydride (LiBH4 & BULL;1/2CH(3)NH(2)), with a crystal structure consisting of two-dimensional layers, has been discovered. This compound exhibits high lithium ion conductivity and electrochemical stability, making it suitable for battery operation. However, it is incompatible with layered TiS2 cathode, limiting its full charging potential.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Archa Santhosh, ShinYoung Kang, Nathan Keilbart, Brandon C. Wood, Thomas Klassen, Paul Jerabek, Martin Dornheim
Summary: This study investigates the growth and nature of oxide films on the surface of TiFe intermetallic compound using first-principles methods. Different structures and temperature effects of oxide phases are studied in detail. The interaction between the oxidized surface and hydrogen is evaluated, providing important insights for the design of activation methods for TiFe and related materials as hydrogen storage materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Yuanyuan Shang, Shaofei Liu, Zhida Liang, Florian Pyczak, Zhifeng Lei, Tim Heidenreich, Alexander Schoekel, Ji-jung Kai, Gokhan Gizer, Martin Dornheim, Thomas Klassen, Claudio Pistidda
Summary: By synthesizing FeTi alloys from industrial scraps in an environmentally sustainable way, the carbon footprint associated with their production can be reduced without compromising their hydrogen storage properties.
COMMUNICATIONS MATERIALS
(2022)
Review
Energy & Fuels
Martin Dornheim, Lars Baetcke, Etsuo Akiba, Jose-Ramon Ares, Tom Autrey, Jussara Barale, Marcello Baricco, Kriston Brooks, Nikolaos Chalkiadakis, Veronique Charbonnier, Steven Christensen, Jose Bellosta von Colbe, Mattia Costamagna, Erika Dematteis, Jose-Francisco Fernandez, Thomas Gennett, David Grant, Tae Wook Heo, Michael Hirscher, Katherine Hurst, Mykhaylo Lototskyy, Oliver Metz, Paola Rizzi, Kouji Sakaki, Sabrina Sartori, Emmanuel Stamatakis, Alastair Stuart, Athanasios Stubos, Gavin Walker, Colin J. Webb, Brandon Wood, Volodymyr Yartys, Emmanuel Zoulias
Summary: There has been a significant increase in industrial and public interest in hydrogen technologies recently, as hydrogen is seen as the ideal means for storing, transporting, and utilizing energy in combination with renewable and green energy sources. Green hydrogen production, storage, and usage are considered key technologies in future energy systems. Material-based systems for hydrogen storage and compression offer advantages over traditional systems, including lower maintenance costs, higher reliability, and safety. This paper summarizes the latest developments in hydrogen carriers for storage and compression and provides an overview of research activities in this field.
PROGRESS IN ENERGY
(2022)
Review
Energy & Fuels
Erika Michela Dematteis, Mads B. Amdisen, Tom Autrey, Jussara Barale, Mark E. Bowden, Craig E. Buckley, Young Whan Cho, Stefano Deledda, Martin Dornheim, Petra de Jongh, Jakob B. Grinderslev, Goekhan Gizer, Valerio Gulino, Bjorn C. Hauback, Michael Heere, Tae Wook Heo, Terry D. Humphries, Torben R. Jensen, Shin Young Kang, Young-Su Lee, Hai-Wen Li, Sichi Li, Kasper T. Moller, Peter Ngene, Shin-ichi Orimo, Mark Paskevicius, Marek Polanski, Shigeyuki Takagi, Liwen Wan, Brandon C. Wood, Michael Hirscher, Marcello Baricco
Summary: This review paper provides an overview of the intense literature and research efforts on complex hydrides for energy storage applications. It focuses on recent advances in different complex hydride systems from the collaborative activities of research groups led by experts of the Task 40 'Energy Storage and Conversion Based on Hydrogen' of the International Energy Agency. The paper reviews materials design, synthesis, tailoring, modelling approaches, hydrogen release and uptake mechanisms, and thermodynamic aspects to define new trends and suggest new possible applications for these highly tuneable materials.
PROGRESS IN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yuanyuan Shang, Claudio Pistidda, Chiara Milanese, Alessandro Girella, Alexander Schokel, Thi Thu Le, Annbritt Hagenah, Oliver Metz, Thomas Klassen, Martin Dornheim
Summary: This manuscript proposes a method for obtaining high-quality NaAlH4 from automotive recycled alloy, and comprehensively explores its hydrogen storage properties using various experimental techniques. The results show that NaAlH4 with comparable properties to high-purity commercial NaAlH4 was successfully synthesized.
