Article
Energy & Fuels
Meihong Wu, Mingxia Gao, Shanqing Qu, Yongfeng Liu, Wenping Sun, Chu Liang, Xin Zhang, Zhenglong Li, Yaxiong Yang, Hongge Pan
Summary: By using nickelocene and chromocene as catalyst additives, the hydrogen storage properties of LiBH4 can be significantly improved. The addition of nickelocene leads to the formation of carbon nanotubes, while chromocene remains stable. The formed CrB2 and Ni2B nanoparticles act as highly active catalysts, reducing the dehydrogenation temperature and improving hydrogen storage kinetics and reversibility.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Kaicheng Xian, Bo Nie, Zigen Li, Mingxia Gao, Zhenglong Li, Congxiao Shang, Yongfeng Liu, Zhengxiao Guo, Hongge Pan
Summary: A synergetic approach was developed to improve the properties of lithium borohydride (LiBH4) for solid-state hydrogen storage, by constructing an active porous core-shell network structure with optimized TiO2 fraction, enabling effective confinement of LiBH4 and enhancement of hydrogen sorption properties.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Xin Zhang, Wenxuan Zhang, Lingchao Zhang, Zhenguo Huang, Jianjiang Hu, Mingxia Gao, Hongge Pan, Yongfeng Liu
Summary: Synthesizing nanostructured lithium borohydride without any supports can effectively improve its hydrogen storage reversibility. The resulting nano-LiBH4 shows superior hydrogen desorption and absorption capacity under high temperature and pressure, mainly due to the effective suppression of foaming.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
J. R. Tena-Garcia, A. Casillas-Ramirez, K. Suarez-Alcantara
Summary: Mixtures of LiAlH4/FeCl2 and LiBH4/FeCl2 were prepared under cryogenic conditions using ball milling, with the optimal production conditions being milling for 30 minutes at -196 degrees C and 15 Hz oscillation frequency. Hydrogen release in LiAlH4/FeCl2 mixtures starts at around 60 degrees C, while LiBH4/FeCl2 mixtures exhibit dehydrogenation starting at 40 degrees C and finishing at about 300 degrees C. The formation of LiCl is considered the driving force behind the decomposition reactions in these reactive mixtures. Cryogenic ball-milling has a positive effect on production and low-temperature dehydrogenation of the studied samples.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
B. Chettri, P. K. Patra, Nguyen N. Hieu, D. P. Rai
Summary: The study using DFT calculated the hydrogen storage capacity of Boron Nitride nanosheet, finding a high capacity under certain adsorption sites, with weak binding due to minimal charge transfer between hydrogen molecules and the BN nanosheet.
SURFACES AND INTERFACES
(2021)
Review
Chemistry, Physical
Yongqi Sui, Zeming Yuan, Dongsheng Zhou, Tingting Zhai, Xiaoming Li, Dianchen Feng, Yiming Li, Yanghuan Zhang
Summary: This paper mainly studies the hydrogen storage capacity of magnesium-based materials with nanostructure. The methods of alloying, nanostructure, and adding catalyst are explored to improve the properties of magnesium-based hydrogen storage alloys. The dehydrogenation temperature of magnesium-based materials has been reduced by adding catalyst and alloy with other transition elements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Alejandra A. Martinez, Aurelien Gasnier, Fabiana C. Gennari
Summary: A study on the filling of a carbon matrix with pores of distinct sizes using LiBH4 was conducted, revealing that smaller pores are filled faster. Different resins were mixed to create a material with micropores and four populations of mesopores, leading to experiments with various volumes of LiBH4 and subsequent thermodynamic analysis. A two-step pore filling protocol was proposed to investigate the efficiency of doping the matrix with boron for improved filling, highlighting the inherent difficulties in reversibility of the system.
JOURNAL OF PHYSICAL CHEMISTRY C
(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, 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)
Review
Chemistry, Multidisciplinary
Ashish Bahuguna, Yoel Sasson
Summary: This article discusses hydrogen as a promising energy carrier for the future sustainable energy economy, as well as the challenges and solutions for hydrogen storage. It explores formic acid and alkali metal formates as sources of hydrogen, and the advantages of the alkali metal formate-carbonate cycle for hydrogen and energy storage.
Article
Chemistry, Physical
J. R. Tena-Garcia, M. Osorio-Garcia, K. Suarez-Alcantara
Summary: Mixtures of LiBH4/VCl3 and LiAlH4/VCl3 with different stoichiometries were prepared and tested for hydrogen release. The mixtures showed diverse hydrogen release levels and exhibited a change in reaction pathway at low temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Ou Jin, Yuanyuan Shang, Xiaohui Huang, Xiaoke Mu, Dorothee Vinga Szabo, Thi Thu Le, Stefan Wagner, Christian Kuebel, Claudio Pistidda, Astrid Pundt
Summary: This study investigates the reaction mechanism of LiBH4-MgH2 composite under the influence of additives using transmission electron microscopy. The formation of MgB2, as the rate-limiting step, is found to be related to different nucleation centers. The morphology and performance of MgB2 are affected by the in-plane strain energy density caused by atomic misfit at the interface.
Review
Chemistry, Multidisciplinary
Jianjun Liu, Yong Ma, Jinggang Yang, Lei Sun, Dongliang Guo, Peng Xiao
Summary: Hydrogen energy is an excellent carrier for connecting various renewable energy sources, but due to the flammability and low density of hydrogen, storage technology is crucial. Metal borohydrides, with high hydrogen density, have potential for solid-state hydrogen storage, but challenges include high sorption temperature, slow kinetics, and poor reversibility.
FRONTIERS IN CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Suwarno Suwarno, Angeloclaudio Nale, Putu Suwarta, Ika Dewi Wijayanti, Mohammad Ismail
Summary: Solid-state electrolytes are crucial for lithium-ion batteries, and lithium borohydride (LiBH4) is a promising candidate for solid-state electrolytes. It has good wetting properties and mechanical properties, and its ion conductivity can be modified through nanoconfinement and choice of support materials. The future development of LiBH4 as a solid-state electrolyte is discussed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Ou Jin, Yuanyuan Shang, Xiaohui Huang, Dorothee Vinga Szabo, Thi Thu Le, Stefan Wagner, Thomas Klassen, Christian Kuebel, Claudio Pistidda, Astrid Pundt
Summary: The addition of 3TiCl(3)center dot AlCl3 is found to improve the dehydrogenation kinetics of the reactive hydride composite LiBH4-MgH2. The growth process of MgB2 is studied, and it is observed that MgB2 prefers to form on TiB2 nanoparticles due to the creation of an interface that reduces the elastic strain energy density. The kinetics of MgB2 growth is described by the JMAK equation, and it is suggested that the nucleation center change from Mg to TiB2 leads to a transition from interface- to diffusion-controlled growth, resulting in a change in MgB2 morphology.
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)