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
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
Chemistry, Multidisciplinary
Chulaluck Pratthana, Kondo-Francois Aguey-Zinsou
Summary: LiAlH4 and NaAlH4 are hindered by the lack of hydrogen reversibility and poor kinetics. Nanosizing has been suggested as a solution, but the synthesis of alanate nanoparticles has not been explored. In this study, a solvent evaporation method utilizing surfactants as stabilizers was used to assemble alanate nanoparticles, and the roles of surfactants in controlling particle size and morphology were determined.
APPLIED SCIENCES-BASEL
(2022)
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
Cong Peng, Yongtao Li, Qingan Zhang
Summary: This paper proposes a new approach to improve the sorption kinetics of magnesium hydride by catalyzing it with highly dispersed nickel nanoparticles. The experiment demonstrates that the in-situ formation of highly dispersed Ni nanoparticles in the MgH2 matrix significantly enhances the hydrogen desorption kinetics and retention rate of MgH2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Long Liang, Chunli Wang, Mingan Ren, Shouliang Li, Zhijian Wu, Limin Wang, Fei Liang
Summary: Introducing TiO2 and Pr6O11 for synergistic catalysis in the dehydrogenation process of AlH3 can lower the dehydrogenation temperature and increase the amount of released hydrogen. Multiple valence state conversions promote electron transfer and form a new dehydrogenation pathway.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Hongen Yu, Yong Wu, Shunpeng Chen, Zewei Xie, Yiman Wu, Nuo Cheng, Xue Yang, Wei Lin, Lei Xie, Xingguo Li, Jie Zheng
Summary: In this study, a palladium catalyst loaded on a hydrogen storage support-Pd/LaNi5 was synthesized and its catalytic property in reversible hydrogen storage of N-ethylcarbazole (NEC) was investigated. The results showed that the catalytic performance of 1 wt%Pd/LaNi5 was significantly better than that of Pd/Al2O3 with the same Pd loading. This improvement was attributed to the ample lattice hydrogen bonding sites and fast bulk hydrogen diffusion kinetics of LaNi5.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Energy & Fuels
Nurul Shafikah Mustafa, Muhammad Syarifuddin Yahya, Nurul Nafiqah Itam Sulaiman, Muhammad Firdaus Asyraf Abdul Halim Yap, Mohammad Ismail
Summary: The study demonstrated that TiO2 has a catalytic effect on improving the hydrogen sorption behavior of the 4MgH(2)-LiAlH4 sample, leading to changes in the thermodynamics of reactions and enhancement of dehydrogenation kinetics performances. The synergistic effect of TiO2 in the system was related to the formation of Al3Ti and TiH2 phases, reinforcing the interaction between MgH2 and LiAlH4 during desorption.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Long Liang, Shaolei Zhao, Chunli Wang, Dongming Yin, Shaohua Wang, Qingshuang Wang, Fei Liang, Shouliang Li, Limin Wang, Yong Cheng
Summary: In this study, a heterojunction synergistic catalyst of Ti3C2 supported PrF3 nanosheets was found to greatly enhance the dehydrogenation kinetics of AlH3 at low temperatures and maintain a high hydrogen storage capacity. Pr produced a synergistic coupling interaction through its unique electronic structure, and the sandwich structure enhanced the interaction between species and the synergistic effect. Under the kinetic test, the composite achieved an initial dehydrogenation temperature of 70.2 degrees C and a dehydrogenation capacity of 8.6 wt.% at 120 degrees C in 90 min, reaching 93% of the theoretical hydrogen storage capacity. The catalyst significantly reduced the activation energy of the dehydrogenation reaction. Furthermore, the multielectron pairs on the surface of the catalyst promoted electron transfer and accelerated the reaction.
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, Multidisciplinary
Md Estak Ahmed, Mahdi Raghibi Boroujeni, Pokhraj Ghosh, Christine Greene, Subrata Kundu, Jeffery A. Bertke, Timothy H. Warren
Summary: This study reports a novel copper catalyst for the oxidation of ammonia to dinitrogen under homogeneous conditions. The catalyst shows high efficiency and stability for ammonia oxidation under moderate overpotential. Mechanistic investigations reveal the involvement of oxidation and deprotonation processes in the catalytic transformation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Liang Dan, Hui Wang, Jiangwen Liu, Liuzhang Ouyang, Min Zhu
Summary: Ultrafine Ni nanoparticles are synthesized on the surface of MgH2 through H2 plasma reduction and ball milling. The obtained composite exhibits excellent hydrogen storage properties.
ACS APPLIED ENERGY MATERIALS
(2022)
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
Katherine Develos-Bagarinao, Riyan A. Budiman, Shu-Sheng Liu, Tomohiro Ishiyama, Haruo Kishimoto, Katsuhiko Yamaji
JOURNAL OF POWER SOURCES
(2020)
Article
Nanoscience & Nanotechnology
Xiaoqi Mao, Yongjin Zou, Fen Xu, Lixian Sun, Hailiang Chu, Huanzhi Zhang, Jian Zhang, Cuili Xiang
Summary: A facile method for fabricating 3D self-supporting Ti3C2 with MoS2 and Cu2O nanocrystal composites for supercapacitor applications was developed in this study, showing excellent performance. The composite electrode exhibited a synergistic effect between Ti3C2, MoS2, and Cu2O, enhancing the specific capacitance and cycling stability of the supercapacitor.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Tongxiang Chen, Cuili Xiang, Yongjin Zou, Fen Xu, Lixian Sun
Summary: A new method for preparing high-performance yolk-shell NiMoO4/V2CTx@rGO composite material using room-temperature ionic liquid (RTIL)-assisted hydrothermal method is proposed in this study, which enhances the electrochemical performance. A solid asymmetric supercapacitor assembled with this composite material exhibits high energy density and excellent cycling performance.
Article
Chemistry, Physical
Jie Xu, Cuili Xiang, Sensen Yu, Yongjin Zou, Songwen Fang, Zhicong Hu, Fen Xu, Lixian Sun
Summary: Transition-metal selenide materials have the potential to be excellent power storage materials due to their unique physical and structural features. The synthesis of porous yolk-shelled NiMnSe3 nanospheres can improve the charge transfer capability of asymmetric supercapacitors (ASCs). NiMnSe3 electrode material demonstrates excellent electrochemical properties in the three-electrode system, indicating promising potential for ASCs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jianhao Lao, Yao Lu, Songwen Fang, Fen Xu, Lixian Sun, Yu Wang, Tianhao Zhou, Lumin Liao, Yanxun Guan, Xueying Wei, Chenchen Zhang, Yukai Yang, Yongpeng Xia, Yumei Luo, Yongjin Zou, Hailiang Chu, Huanzhi Zhang, Yong Luo, Yanling Zhu
Summary: Supercapacitors, as a new type of electrical energy storage device, can provide a potential solution to environmental problems caused by economic development and excessive use of fossil energy resources. In this study, nitrogen/oxygen-doped porous carbon materials were fabricated through the calcination and activation of an organic crosslinked polymer, resulting in a high-performance electrode material with excellent electrochemical performance and energy storage potential.
Article
Chemistry, Physical
Lumin Liao, Jiaxi Liu, Tao Wang, Fen Xu, Lixian Sun, Tianhao Zhou, Jinfan Wu, Yanxun Guan, Yumei Luo, Yongjin Zou, Hailiang Chu
Summary: In this study, three additives (BiOI, BiOBr, and BiOF) for the Al-H2O reaction were synthesized and characterized. The performance of hydrogen generation from Al hydrolysis using these additives was investigated. The results showed that BiOI exhibited the most favorable performance among the three additives.
Article
Chemistry, Multidisciplinary
Cheng Cheng, Yongjin Zou, Fen Xu, Cuili Xiang, Lixian Sun
Summary: Metal organic frameworks (MOFs) are porous coordination polymers with controlled structure and porosity. They have limitations in energy storage applications due to long diffusion pathways, low conductivity, low cycling stability, and few exposed active sites. This study proposes a facile method to grow and immobilize MOFs on layered double hydroxides, resulting in enhanced conductivity, cycling stability, and additional active sites. The NiMo-LDH@NiCo-MOF composite exhibits a large specific capacitance and the assembled NiMo-LDH@NiCo-MOF//AC asymmetric supercapacitor shows promising applications with high-energy density.
Article
Materials Science, Multidisciplinary
Yumei Luo, Xu Feng, Dan Wei, Lingling Zhang, Qingyong Wang, Fan Yang, Shujun Qiu, Fen Xu, Yongjin Zou, Lixian Sun, Hailiang Chu
Summary: The study developed a novel electrode material for energy storage devices by designing the structure and improving conductivity and component synergy. A core-shell composite called Ni-Co-O/NiCo-LDH was constructed using a self-template method. The material showed a Chinese chestnut-like structure with nanoneedles. The electrode exhibited improved pseudocapacitance characteristics and high electrochemical performance, reaching a specific capacitance of 1434 F g(-1) at 1 A g(-1). When combined with activated carbon as the negative electrode, the supercapacitor achieved an energy density of 26 Wh kg(-1) at a power density of 807 W kg(-1). The device also demonstrated excellent cycle stability, with 95% capacity retention after 3600 cycles at 6 A g(-1), expanding its potential applications.
Article
Chemistry, Physical
Yihan Guo, Tongxiang Chen, Yongjin Zou
Summary: In this study, MXene-derived/NiCoFe-LDH heterostructures with three-dimensional interconnected porous network microstructures were prepared, leveraging the excellent electrical conductivity and growth platform provided by the MXene material. The remarkable specific capacitance of metal oxides was fully exploited. The composite exhibited high specific capacitance and excellent stability, with a specific capacitance of 1305 F g(-1) at 1 A g(-1) and a capacitance of 85.7% of the initial performance after 6000 charge/discharge tests at 10 A g(-1). A two-electrode assembly was constructed using activated carbon as the negative electrode material corresponding to 49.5 Wh kg(-1) at 800 W kg(-1), indicating that the electrodes could achieve rapid charge/discharge. The findings of this study indicate that the composite material comprising LDH/MXene has significant potential for supercapacitor applications.
Article
Chemistry, Multidisciplinary
Sen Hu, Cuili Xiang, Yongjin Zou, Fen Xu, Lixian Sun
Summary: Hydrogen is gaining research attention as a potential clean energy source. The need for efficient catalysts to generate hydrogen gas by electrolyzing water is a significant challenge. This study investigates the preparation of hydrogen production catalysts for cathodes, using rod-like NiMoO4/NiMo as a framework and spherical NiS as a catalyst. The resulting material shows promising potential for energy-related applications in hydrogen evolution reactions.
Article
Chemistry, Analytical
Yanxun Guan, Fen Xu, Lixian Sun, Yumei Luo, Riguang Cheng, Yongjin Zou, Lumin Liao, Zhong Cao
Summary: In this study, a hydrogen peroxide electrochemical sensor has been developed by electropolymerizing polypyrrole (PPy) on a glass carbon electrode (GCE) and modifying Ag and Cu nanoparticles on the surface of PPy via electrodeposition. The sensor shows good response to H2O2 with two linear intervals and exhibits high reproducibility, repeatability, anti-interference, and stability. The proposed sensor reduces the cost by using non-precious metals without compromising the sensing performance of H2O2.
Article
Biochemistry & Molecular Biology
Erhu Yan, Zhijie Guo, Limin Jia, Yihao Wang, Shuo Zhang, Tangwei Li, Yongjin Zou, Hailiang Chu, Huanzhi Zhang, Fen Xu, Lixian Sun
Summary: This study constructs and validates the phase diagram of the V-Ti-Co alloy system using the CALPHAD approach. The designed VxTi50Co50-x alloys show high hydrogen permeability, with V23.5Ti50Co26.5 exhibiting the highest permeability known in the V-Ti-Co system. The high permeability is attributed to the increased solubility and diffusivity of hydrogen, which is closely related to the composition, particularly the Ti content, of the hydrogen-permeable alloys.
Article
Nanoscience & Nanotechnology
Hongliang Peng, Jiaxi Liu, Huitian Yang, Lixian Sun, Kostya S. Novoselov, Hao Wu, Yang Yang, Yongjin Zou, Huanzhi Zhang, Fen Xu, Ping Cai, Xin Wen, Pengru Huang, Federico Rosei
Summary: The study prepared F, Fe/Zn codoped graphene-like nanoribbons with special morphology. The results showed that these catalysts exhibited higher oxygen reduction reaction (ORR) activity compared to commercial Pt/C catalysts. Density functional theory (DFT) calculations were used to understand the underlying mechanisms.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Zhicong Hu, Yongjin Zou, Cuili Xiang, Lixian Sun, Fen Xu, Menghe Jiang, Sensen Yu
Summary: In this study, a novel carbonized Cu-coated melamine foam (MF)/reduced graphene oxide (rGO) framework was constructed as a support for fabricating stabilized multifunctional organic phase change materials (OPCMs). The resulting composite exhibited high phase change enthalpies and enhanced thermal conductivity compared to the reference material. Additionally, the composite showed great light-to-thermal and electric-to-thermal conversion capabilities, thermal cycle stability, light-to-thermal cycle stability, and shape stability, indicating promising application prospects.
Article
Chemistry, Physical
Xueying Qiu, Jiaxi Liu, Shujun Qiu, Pengru Huang, Hailiang Chu, Yongjin Zou, Huanzhi Zhang, Fen Xu, Lixian Sun
Summary: Developing high-performance metal catalysts for the hydrolytic dehydrogenation of ammonia borane is a challenging task. In this study, a cobalt-nickel layered double oxide (CoNi-LDO) with a sea urchin-like structure was prepared and used as a catalyst support for ruthenium nanoparticles. The study systematically investigated the effect of reduction methods and auxiliary reagents on the catalytic properties for hydrogen production from AB hydrolysis.
SUSTAINABLE ENERGY & FUELS
(2021)
