Review
Chemistry, Physical
Fenil J. Desai, Md Nizam Uddin, Muhammad M. Rahman, Ramazan Asmatulu
Summary: Hydrogen-based economy has the potential to address global environmental concerns by using hydrogen as a future energy carrier. Among various solid-state hydrogen storage materials, metal hydrides have the highest energy density. However, the accessibility of hydrogen in metal hydrides is challenging. To improve the hydrogen storage kinetics, the effects of functionalized catalysts and dopants on metal atoms have been extensively studied. The nanostructuring of metal hydrides with carbon-based materials has shown promising results in enhancing hydrogen storage properties. This review summarizes the effects of carbon-based materials, catalysts, and dopants on hydrogen storage capacity and kinetics, and discusses the potential of nanoscale tailoring of metal hydrides with carbon materials for industrial applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Manoj S. Choudhari, Vinod Kumar Sharma
Summary: The increasing energy demand highlights the importance of energy conservation and utilization of renewable sources. Thermochemical energy storage system is a useful technology for energy storage during the availability of renewable energy sources. The MH-TES shows higher energy storage density and COP, with potential for optimization through operating temperature adjustment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Praphatsorn Plerdsranoy, Bunrat Tharat, Sophida Thiangviriya, Pinit Kidkhunthod, Theeranun Siritanon, Suwit Suthirakun, Rapee Utke
Summary: This work aims to optimize the Ni substitution in Mg2FeH6 and form the quaternary intermetallic hydrides of Mg2Fe(1-x)NixH6 with the best kinetics and reversibility. The degree of Ni substitution is enhanced by increasing the Mg2NiH4 content, resulting in improved dehydrogenation kinetics and reversible hydrogen capacities. The structures and dehydrogenation energies of Mg2Fe(1-x)NixH6 with different Ni-substituted contents are simulated and calculated to explain the role of Ni substitution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
YongJun Cho, Sichi Li, Jonathan L. Snider, Maxwell A. T. Marple, Nicholas A. Strange, Joshua D. Sugar, Farid El Gabaly, Andreas Schneemann, Sungsu Kang, Min-ho Kang, Hayoung Park, Jungwon Park, Liwen F. Wan, Harris E. Mason, Mark D. Allendorf, Brandon C. Wood, Eun Seon Cho, Vitalie Stavila
Summary: The study demonstrates a new approach to thermodynamically stabilizing metastable metal hydrides by coordinating them with nitrogen binding sites within nanopores. This allows for low-temperature hydrogen release and regeneration of LiAlH4 at high pressure, with a predicted decrease in Al-H bond dissociation energy. Additionally, solid-state reversibility is achieved through a combination of nanoconfinement effects, Li adatom formation, and charge redistribution between the metal hydride and the host.
Article
Chemistry, Physical
Huang Liu, Jingxi Zhang, Chengshang Zhou, Pei Sun, Yong Liu, Zhigang Zak Fang
Summary: This paper investigates the effect of Nb alloying on the microstructure and hydrogen storage properties of Ti-Fe-Zr-Mn-Nbx alloys. The addition of 2% Nb enables a good combination of the hydrogen capacity and activation property, while Zr-rich phases play a critical role in the activation behavior. However, high Nb addition (> 4%) leads to the reduction of Zr-rich phases and deteriorates the activation kinetics. Nb addition also promotes the formation of the TiFe main phase and increases capacities at ambient temperature. The correlations between microstructure and hydrogen storage performance provide insights into tailoring hydrogen storage properties by alloying TiFe with multi-elements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Materials Science, Multidisciplinary
Xin F. Tan, Manjin Kim, Kazuhiro Yasuda, Kazuhiro Nogita
Summary: Bulk Mg-based hydrogen storage materials have the potential to provide a low-cost solution for energy storage and transportation. They are safer and more oxidation resistant compared to nano powders. Various alloying elements and innovative processing methods can be used to improve the performance of bulk Mg alloys in terms of hydrogen sorption kinetics and stability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Eli Grigorova, Pavel Markov, Boyko Tsyntsarski, Peter Tzvetkov, Ivanka Stoycheva
Summary: This study investigates the hydrogen sorption performance of materials based on 80 wt.% MgH2 with the addition of 15 wt.% Ni or V and 5 wt.% activated carbons synthesized from polyolefin wax, a waste product from polyethylene production (POW), walnut shells (CAN), and peach stones (CPS). The composition and performance of the samples are analyzed through milling, hydrogenation, X-ray diffraction, and TEM.
Article
Energy & Fuels
Nozomi Noto, Shigehito Isobe, Naoyuki Hashimoto
Summary: The research evaluated the dehydrogenation properties of several hydride-hydroxide systems and found that only the KH-LiOH system showed potential for reversible hydrogen adsorption/desorption, although rehydrogenation would require extremely high pressure.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
T. Kana, J. Cermak, L. Kral
Summary: Ab initio calculations were performed on Mg2Ni compound and its hydride Mg2NiH4 doped with elements X = Al, Ga, In, Si, Ge, and Sn, showing a reduction in hydrogen desorption enthalpy for both concentrations of X. Doping with In at low concentration weakened Ni-H bonds in Mg-2(Ni-In)H-4 hydride while enhancing bonding between Mg and H atoms. These findings provide valuable insights into enhancing hydrogen storage properties in metal hydride systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Simona E. Hunyadi Murph, Henry Sessions, Kaitlin Coopersmith, Michael Brown, Patrick A. Ward
Summary: Controlled and selective release of hydrogen isotopes from lanthanum-nickel-aluminum (LANA) materials was achieved using an alternating electromagnetic field (AEMF), demonstrating a promising pathway for applications requiring the controlled release of hydrogen and separation of its isotopes through rapid and selective desorption directly heating the LANA material with AEMF.
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Junrui Zhang, Haiwen Li, Xuezhang Xiao, Liuzhang Ouyang
Summary: Metal borohydrides have high theoretical hydrogen production/storage densities and offer efficient real-time hydrogen supply for electronics. However, their practical applications are limited. Strategies to overcome these limitations, such as optimizing the boron/hydrogen source and reducing agent, are summarized in this review. Ouyang developed a practical and low-cost method for regenerating MBH4 by ball milling, which has the potential to decrease the synthesis cost and increase the reversibility of metal borohydrides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Guilherme Zepon, Bruno Hessel Silva, Claudia Zlotea, Walter Jose Botta, Yannick Champion
Summary: The study utilized a thermodynamic model to calculate the PCT diagrams of body-centered multicomponent alloys for designing alloys with optimized properties for different hydrogen storage applications. Experimental data and DFT calculations demonstrated the accuracy and reliability of the model in predicting the behavior of various alloys in hydrogen storage.
Article
Green & Sustainable Science & Technology
Satya Sekhar Bhogilla
Summary: Thermo-chemical based thermal energy storage systems are receiving attention due to their higher energy density. Metal hydride based thermal energy storage systems are energy-efficient, compact, environmentally friendly, and available over a wide operating temperature range, making them ideal for concentrating solar power plants.
Article
Chemistry, Physical
Samuel M. Pennell, Jacob B. Mack, David C. Dunand
Summary: This study investigates the effects of alloying Fe with 25 at% Co or 30 at% Cu on freeze-cast lamellar foams. It is found that Fe-25Co alloy can slow down foam sintering and densification, while Fe-30Cu alloy leads to severe sintering and densification.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Geosciences, Multidisciplinary
Jeffrey S. Pigott, Derek A. Ditmer, Rebecca A. Fischer, Daniel M. Reaman, Rostislav Hrubiak, Yue Meng, Robert J. Davis, Wendy R. Panero
GEOPHYSICAL RESEARCH LETTERS
(2015)
Article
Instruments & Instrumentation
Yue Meng, Rostislav Hrubiak, Eric Rod, Reinhard Boehler, Guoyin Shen
REVIEW OF SCIENTIFIC INSTRUMENTS
(2015)
Article
Instruments & Instrumentation
Rostislav Hrubiak, Stanislav Sinogeikin, Eric Rod, Guoyin Shen
REVIEW OF SCIENTIFIC INSTRUMENTS
(2015)
Article
Engineering, Manufacturing
Selva Vennila Raju, Rostislav Hrubiak, Vadym Drozd, Surendra Saxena
MATERIALS AND MANUFACTURING PROCESSES
(2017)
Article
Multidisciplinary Sciences
Jiachao Liu, Jie Li, Rostislav Hrubiak, Jesse S. Smith
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2016)
Article
Multidisciplinary Sciences
Rostislav Hrubiak, Yue Meng, Guoyin Shen
NATURE COMMUNICATIONS
(2017)
Article
Chemistry, Physical
Haw-Tyng Huan, Li Zhu, Matthew D. Ward, Brian L. Chaloux, Rostislav Hrubiak, Albert Epshteyn, John V. Badding, Timothy A. Strobel
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2018)
Article
Materials Science, Multidisciplinary
Venkata S. Bhadram, Hanyu Liu, Enshi Xu, Tianshu Li, Vitali B. Prakapenka, Rostislav Hrubiak, Stephan Lany, Timothy A. Strobel
PHYSICAL REVIEW MATERIALS
(2018)
Article
Thermodynamics
A. Karbasi, S. K. Saxena, R. Hrubiak
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2011)
Article
Geochemistry & Geophysics
Surendra K. Saxena, Rostislav Hrubiak
EARTH AND PLANETARY SCIENCE LETTERS
(2014)
Article
Physics, Multidisciplinary
A. Duzynska, R. Hrubiak, V. Drozd, H. Teisseyre, W. Paszkowicz, A. Reszka, A. Kaminska, S. Saxena, J. D. Fidelus, J. Grabis, C. J. Monty, A. Suchocki
HIGH PRESSURE RESEARCH
(2012)
Article
Physics, Applied
Rostislav Hrubiak, Vadym Drozd, Ali Karbasi, Surendra K. Saxena
JOURNAL OF APPLIED PHYSICS
(2012)
Article
Instruments & Instrumentation
Dean Smith, Jesse S. Smith, Christian Childs, Eric Rod, Rostislav Hrubiak, Guoyin Shen, Ashkan Salamat
REVIEW OF SCIENTIFIC INSTRUMENTS
(2018)
Article
Physics, Applied
Venkata S. Bhadram, Lakshmi Krishna, Eric S. Toberer, Rostislav Hrubiak, Eran Greenberg, Vitali B. Prakapenka, Timothy A. Strobel
APPLIED PHYSICS LETTERS
(2017)
Proceedings Paper
Materials Science, Ceramics
Ali Karbasi, Ali Hadjikhani, Rostislav Hrubiak, Andriy Durygin, Kinzy Jones
PROCESSING AND PROPERTIES OF ADVANCED CERAMICS AND COMPOSITES V
(2013)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)