Article
Chemistry, Physical
Nurul Yasmeen Yusnizam, Nurul Amirah Ali, Noratiqah Sazelee, Mohammad Ismail
Summary: This research aims to investigate the effect of adding titanium silicate (TiSiO4) on the dehydrogenation behavior of lithium alanate (LiAlH4). The addition of 10 wt% TiSiO4 resulted in lower dehydrogenation temperatures for LiAlH4, with the first-step reaction occurring at 92 degrees C and the second-step reaction at 128 degrees C. The TiSiO4-added LiAlH4 composite was able to release more hydrogen (about 6.0 wt%) compared to undoped LiAlH4 at 90 degrees C for 2 hours. The addition of TiSiO4 also reduced the activation energies for hydrogen liberation from LiAlH4.
Review
Chemistry, Physical
N. A. Sazelee, M. Ismail
Summary: LiAlH4 is considered a potential material for solid-state hydrogen storage due to its high hydrogen content, but challenges like high decomposition temperature and slow dehydrogenation hinder its wider applications. Methods such as mechanical milling and catalyst doping have shown improvements in efficiency, but further technological advancements are needed to meet expected goals.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Juan Rogelio Tena-Garcia, Alejandro Casillas-Ramirez, Ricardo Guerrero-Ortiz, David Ricardo Poire de la Cruz, Karina Suarez-Alcantara
Summary: The dehydrogenation temperature of LiAlH4 can be significantly reduced by producing mixtures with ZrCl4 through ball milling at low temperatures. This method allows for efficient hydrogen release by achieving small aggregate size and preventing substantial decomposition. However, the LiAlH4/ZrCl4 mixtures are unstable and difficult to handle. The dehydrogenation pathway is changed in the mixtures, resulting in the formation of Al, LiCl, Zr, and H2 as the main products.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Na Yang, Huchen Yao, Fanqi Bu, Mengyue Gu, Xuewen Zhao, Lei Huang, Chonghan Zhao, Yonghong Cheng, Jinying Zhang
Summary: Hydrolysis of LiAlH4 is a promising way to produce hydrogen at low temperatures, and an anti-icing aqueous solution is necessary. In this study, an optimized solution containing 27.1% KOH and 30.0% ethylene glycol was found to achieve full and controllable hydrolysis kinetics of LiAlH4 at -40 to 0 degrees C. The effects of compactness, mass, and temperature on the hydrolysis were investigated, and it was observed that the reaction followed the shrinking core model controlled by liquid film diffusion.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Chunmin Zhang, Long Liang, Shaolei Zhao, Zhijian Wu, Shaohua Wang, Dongming Yin, Qingshuang Wang, Limin Wang, Chunli Wang, Yong Cheng
Summary: In this study, rare earth oxide nano-CeO2 additives with different morphologies (nanoparticles, nanocubes, and nanorods) were prepared by the hydrothermal method, and their intrinsic properties were characterized. The addition of nano-CeO2 to LiAlH4 improved its dehydrogenation behavior, with the LiAlH4-CeO2-nanorod composite exhibiting the optimal dehydrogenation behavior. The hydrogen release was facilitated by the in-situ formed CeH2.73 and the facile transition between the oxidation states of Ce4+ and Ce3+.
Article
Chemistry, Physical
M. Ismail, N. A. Ali, N. A. Sazelee, S. Suwarno
Summary: In this study, aluminum titanate was used as an additive to improve the dehydrogenation properties of lithium alanate. The results showed that the addition of 5 wt.% aluminum titanate significantly lowered the decomposition temperature and enhanced the desorption kinetics of lithium alanate. The alkali titanate-doped lithium alanate was able to release a higher amount of hydrogen at lower temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
M. A. N. Ahmad, N. A. Sazelee, N. A. Ali, M. Ismail
Summary: In this study, K2NiF6 was used as an additive to improve the dehydrogenation properties of LiAlH4. The addition of K2NiF6 significantly reduced the decomposition temperature and enhanced the dehydrogenation kinetics of LiAlH4. The morphology study showed that the LiAlH4 particles became smaller and less agglomerated when K2NiF6 was added. The in situ formation of new phases during the dehydrogenation process, as well as a reduction in particle size, were believed to contribute to the improved dehydrogenation characteristics of LiAlH4.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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
Yiting Bu, Lixian Sun, Fen Xu, Sheng Wei, Federico Rosei, Yumei Luo, Zhaoyu Liu, Jiaxi Liu, Chenchen Zhang, Yuan Yao
Summary: By adding Ni-Ti-NC, the hydrogen absorption capacity and dehydrogenation behavior of LiAlH4 were significantly improved, with lowered dehydrogenation temperature, reduced activation energies, and increased hydrogen release rate. The addition of Ni-Ti-NC also enhanced the hydrogen absorption capacity of LiAlH4 at high pressure and constant temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Nurul Amirah Ali, Muhammad Amirul Nawi Ahmad, Muhammad Syarifuddin Yahya, Noratiqah Sazelee, Mohammad Ismail
Summary: The effect of nanosized CoTiO3 additive on the desorption behavior of LiAlH4 was investigated for the first time in this study. The addition of CoTiO3 improved the desorption behavior of LiAlH4, reducing the desorption temperature and increasing the desorption rate. The experimental results suggest that the CoTiO3 additive promoted notable advancements in the desorption performance of LiAlH4 through the in situ-formed active species.
Article
Chemistry, Physical
Zhaoyu Liu, Jiaxi Liu, Sheng Wei, Yongpeng Xia, Riguang Cheng, Lixian Sun, Fen Xu, Pengru Huang, Yiting Bu, Jian Cheng, Tianhao Zhou, Hongge Pan, Zhong Cao, Julan Zeng, Hans Jurgen Seifert, Shuhui Sun, Gaixia Zhang
Summary: In this study, Ni/C nanoparticles anchored on Ti3C2Tx nanosheets were introduced into LiAlH4 to investigate its catalytic effect. It was found that the Ni/C@Ti3C2 composite can effectively catalyze the dehydrogenation and rehydrogenation reactions of LiAlH4, lowering the activation energy and improving the hydrogen adsorption and release kinetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jiaguang Zheng, Meijia Liu, Fuying Wu, Liuting Zhang
Summary: In this study, multihydroxyl xylitol was chosen as a protic hydrogen carrier to react with NaBH4, leading to the fast liberation of hydrogen with high efficiency. The NaBH4-xylitol composites showed great potential to produce hydrogen under low temperatures through solid-state carriers, offering a promising approach for hydrogen storage and release applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Long Liang, Qingqing Yang, Shaolei Zhao, Limin Wang, Fei Liang
Summary: Rare-earth hydrogen storage alloy shows a catalytic effect in reducing the dehydrogenation temperature and improving the dehydrogenation kinetics of alane, providing a promising strategy for metal hydride modification.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
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
Nanoscience & Nanotechnology
Chulaluck Pratthana, Kondo-Francois Aguey-Zinsou
Summary: This study developed a method to improve the hydrogen properties of lithium aluminum hydride by encapsulating it in a titanium shell. The core-shell nanostructures obtained showed a significant improvement in dehydrogenation temperatures and desorption kinetics. However, there was some loss of hydrogen reversibility due to the loss of the core-shell structure during hydrogen cycling.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yao Wang, Yukun Liu, Pingge He, Junteng Jin, Xudong Zhao, Qiuyu Shen, Jie Li, Xuanhui Qu, Yongchang Liu, Lifang Jiao
Summary: Researchers successfully enhanced the structural stability and battery performance of sodium-ion battery cathode materials by selectively substituting the chromium element. The newly developed material, Na3.9MnCr0.9Zr0.1(PO4)(3)/C, exhibited a high capacity retention of 85.94% over 500 cycles at high charge rates, and an ultra-high capacity of 156.4 mAh/g at low charge rates, enabling stable energy output as high as 555.2 Wh/kg. This study provides new opportunities for designing high-energy and high-stability NASICON cathodes through ion doping.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongye Qin, Yukun Ye, Jinhong Li, Wenqi Jia, Siyu Zheng, Xuejie Cao, Guangliang Lin, Lifang Jiao
Summary: Nickel hydroxide has been identified as a promising electrocatalyst for urea oxidation reaction. By doping vanadium and creating oxygen vacancies, the catalyst's activity is enhanced by increasing the number of active sites and lowering the energy barrier for the reaction.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Qiuyu Shen, Yongchang Liu, Xudong Zhao, Junteng Jin, Xiaobai Song, Yao Wang, Xuanhui Qu, Lifang Jiao
Summary: Initiating anionic redox chemistry in layered sodium oxide cathodes is a prevalent method to break the capacity limit set by traditional transition metal redox. This study uncovers a Mn activation mechanism in a novel P2-Na0.80Li0.08Ni0.22Mn0.67O2 cathode, which achieves high discharge capacity and long cycling life by triggering anionic redox and reducing Mn through oxygen loss. The work elucidates the charge compensation mechanism and expands the horizons of oxygen redox chemistry for high-performance layered oxide cathode materials in sodium-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Kunjie Zhu, Zhiqin Sun, Zhaopeng Li, Pei Liu, Haixia Li, Lifang Jiao
Summary: Due to the higher freezing point of conventional aqueous electrolytes, the development and practical applications of aqueous rechargeable energy storage (ARES) at low temperature are limited. In this paper, the design principles for low-temperature ARES with excellent performance are discussed, especially in terms of electrode modification and electrolyte regulation. The related studies on low-temperature ARES are comprehensively summarized, and suggestions for addressing the current challenges are provided.
ADVANCED ENERGY MATERIALS
(2023)
Review
Electrochemistry
Zelin Wang, Chunwen Sun, Liang Lu, Lifang Jiao
Summary: Solid state Na-CO2 batteries are a promising energy storage system that utilizes excess CO2 for electrochemical energy storage. Despite their high theoretical energy densities, the practical application of Na-CO2 battery technology faces challenges such as short cycle life, high charging potential, poor rate performance, and lower specific full discharge capacity.
Article
Chemistry, Multidisciplinary
Xiayan Jian, Qiuyu Shen, Xudong Zhao, Junteng Jin, Yao Wang, Shengwei Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study reports a new type of ultrathin VOPO4 nanosheets as cathodes for sodium-ion batteries, achieving higher capacity and rate performance through redox reactions and ClO4- insertion/extraction. The mechanism of anionic redox reactions is elucidated, opening up a new avenue for high-energy phosphate cathodes for SIBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhaopeng Li, Hongye Qin, Wenyue Tian, Licheng Miao, Kangzhe Cao, Yuchang Si, Haixia Li, Qinglun Wang, Lifang Jiao
Summary: A flexible 3D hollow porous carbon nanofiber framework embedded with Sb nanoparticles (Sb@HPCNF) is reported to enhance the safety and stability of sodium metal batteries (SMBs). The framework enables highly reversible Na plating-stripping cycles for over 550 hours at 5 mA cm(-2) and exhibits excellent high-rate performance. This study provides new insights for constructing functionalized 3D composite frameworks for next-generation high-safety and high-energy SMBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junteng Jin, Yongchang Liu, Xudong Zhao, Hui Liu, Shiqing Deng, Qiuyu Shen, Ying Hou, He Qi, Xianran Xing, Lifang Jiao, Jun Chen
Summary: Annealing in argon is a universal strategy to upgrade the Na-storage performance of Mn-based oxide cathodes by introducing bulk oxygen vacancies, reducing Mn valence, lowering Mn 3d-orbital energy level, and forming new-concept Mn domains. This method increases the energy density and promotes cycling stability, providing a new avenue towards high-performance Mn-based oxide cathodes for sodium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Tongzhou Wang, Licheng Miao, Siyu Zheng, Hongye Qin, Xuejie Cao, Lei Yang, Lifang Jiao
Summary: This study demonstrates a simple synthesis of the Ni3N/Mo2N heterostructure and investigates urea-assisted electrolytic hydrogen production. The adsorption behavior of the urea molecule is analyzed, showing that -NH2 groups preferentially adsorb on Ni3N while C=O groups preferentially adsorb on Mo2N. The Ni3N/Mo2N heterostructure optimizes urea adsorption and enhances the hydrogen evolution reaction, leading to significantly lower voltage requirements and a 7 times higher hydrogen production rate in the urea-assisted water electrolyzer.
Article
Chemistry, Physical
Tianhao Wang, Shengwei Li, Xinger Weng, Lei Gao, Yu Yan, Ning Zhang, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: In this study, hierarchically porous V2O5 nanosheets vertically grown on carbon cloth were prepared, providing additional ion-diffusion channels and abundant active sites. The V2O5/C electrode exhibited exceptional high-rate capability and ultralong cycling durability in rechargeable aqueous zinc-based batteries. Moreover, the quasi-solid-state wearable zinc batteries employing the porous V2O5/C cathode demonstrated respectable performance even under severe deformations and low temperatures.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pei Liu, Licheng Miao, Zhiqin Sun, Xuchun Chen, Yuchang Si, Qinglun Wang, Lifang Jiao
Summary: This study proposes an integrated multifunctional solid electrolyte interphase (SEI) with inorganic/organic hybrid construction to enhance the durability of sodium metal anode. The inorganic components improve ionic conduction efficiency and inhibit dendrite formation, while the organic component forms a dense and elastic membrane structure to prevent fracture and delamination issues. Experimental results show that the proposed SEI can achieve stable cycling over 2000 hours at a high current density, with a very low voltage hysteresis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Pei Liu, Tiantian Zhan, Xuchun Chen, Haixia Li, Qinglun Wang, Wenbo Lu, Lifang Jiao
Summary: O3-type layered oxides have great potential as cathode materials for sodium-ion batteries, but their practical applications are hindered by structural instability and irreversible phase transitions. This study demonstrates a feasible strategy to construct stabilized O3-type layered oxides by doping with a transition metal ion (Zn2+), which improves capacity retention and lifespan, offering a promising approach for high-performance sodium-ion batteries.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Yao Wang, Xudong Zhao, Junteng Jin, Qiuyu Shen, Yang Hu, Xiaobai Song, Han Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study unravels the reductive coupling mechanism (RCM) in a novel P2-Na0.8Cu0.22Li0.08Mn0.67O2 cathode, which boosts the reversibility and kinetics of anionic redox reactions. The formation of strong covalent Cu-(O-O) bonding effectively suppresses excessive oxygen oxidation and irreversible cation migration, resulting in a cathode with remarkable rate capability and long-term cycling stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Tongzhou Wang, Licheng Miao, Siyu Zheng, Hongye Qin, Xuejie Cao, Lei Yang, Lifang Jiao
Summary: In this study, a simple synthesis of Ni3N/Mo2N heterostructure was reported, and urea-assisted electrolytic hydrogen production was systematically investigated. It was found that the -NH2 and C=O groups of the urea molecule were more easily adsorbed on Ni3N and Mo2N, respectively. The Ni3N/Mo2N heterostructure optimized the adsorption of urea and improved the hydrogen evolution reaction performance, leading to a much lower voltage (1.36 V @ 10 mA cm-2) and a 7 times higher hydrogen production rate in the urea-assisted water electrolyzer.
Article
Chemistry, Multidisciplinary
Chen Chen, Tianhao Wang, Xudong Zhao, Aiduo Wu, Shengwei Li, Ning Zhang, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: The study demonstrates the fabrication of OH-termination-rich V₂CTx material with interlayer K+-pillars (alk-V₂CTx) using a one-step alkalization method. The alk-V₂CTx cathode exhibits excellent reversibility and rapid Li+/Zn2+ co-insertion/extraction electrochemistry, along with superior rate performance and exceptional cycling life. The study also investigates the hybrid-ion storage mechanisms and presents flexible quasi-solid-state rechargeable Zn batteries with inspiring energy output even under severe deformation conditions and low temperatures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
