Article
Engineering, Environmental
Mingxing Wei, Yijin Liu, Xiaofei Xing, Zhao Zhang, Tong Liu
Summary: By introducing a specially designed and synthesized high-entropy alloy catalyst, the hydrogen storage properties of MgH2 have been significantly improved, resulting in faster absorption and desorption rates, lower activation energy, and high capacity retention.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zi Jun Gao, Zhou Peng Li, Bin Hong Liu
Summary: In this study, La-incorporated Ni-B amorphous composites were synthesized and found to significantly improve the dehydrogenation kinetics of MgH2, showing higher structural and catalytic stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Yongxi Zhang, Yuan Li, Guanjiu Wu, Chenfeng Fan, Lu Zhang, Shumin Han
Summary: Rare earth-Mg-Ni based alloys with increased Mg content show phase transformation and improved stability and hydrogen absorption properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Yaokun Fu, Lu Zhang, Yuan Li, Sanyang Guo, Han Yu, Wenfeng Wang, Kailiang Ren, Wei Zhang, Shumin Han
Summary: Hydrogen storage is a crucial aspect of the hydrogen economy, and solid-state hydrogen storage is the most promising approach. In this study, a ternary transition metal sulfide FeNi2S4 with a hollow balloon structure was designed as a catalyst for MgH2 to enhance its dehydrogenation/hydrogenation performance by constructing a MgH2/Mg2NiH4-MgS/Fe system.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Yi Yin, Yuanhong Qi, Bo Li, Hu Gu, Jinghui Zhao, Liqiang Ji, Bo Zhang, Zeming Yuan, Yanghuan Zhang
Summary: In this study, Mg-Zn-Ni and Mg-Cu-Ni alloys with different NbF5 contents were synthesized, and the effects of NbF5 on microstructure and hydriding/dehydriding kinetics were discussed. The results show that NbF5 can promote microstructural evolution, reduce dehydrogenation activation energies, and significantly improve hydriding/dehydriding kinetics.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Wei Zhang, Dongliang Zhao, Jun Li, Zeming Yuan, Shihai Guo, Yan Qi, Yanghuan Zhang
Summary: Ball milling Mg-based alloys with transition metal compounds enhances their hydrogen storage performances. In this experiment, La1.7Y0.3Mg16Ni + x wt.% TiF3 (x = 0-10) alloys were prepared using mechanical milling technology. XRD, SEM, HRTEM, and granulometry were used to analyze the composition and microstructure. The addition of TiF3 improves the crystallinity, reduces particle and crystallite sizes, and enhances hydriding and dehydriding kinetics. Adding 7 wt% TiF3 decreases the dehydrogenation activation energy and improves the hydrogen absorption rate at low temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
W. J. Botta, G. Zepon, T. T. Ishikawa, D. R. Leiva
Summary: This article reviews the progress in studying the reaction of hydrogen with metallic Mg to form MgH2, as well as how different metallurgical processing routes influence the microstructure of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jianguang Yuan, Haixiang Huang, Zan Jiang, Yujie Lv, Bogu Liu, Bao Zhang, Youhua Yan, Ying Wu
Summary: By introducing Ni/MWCNTs catalyst into Mg(BH4)(2), the hydrogen desorption rates were significantly improved, and the 95M@5NiMWCNTs sample showed the best hydrogen storage performance.
ACS APPLIED NANO MATERIALS
(2021)
Article
Energy & Fuels
Shuai Dong, Hao Liu, Xinyuan Liu, Chaoqun Li, Zhengyang Gao, Bogu Liu, Weijie Yang, Ying Wu
Summary: This study explores the sluggish kinetics of magnesium hydride (MgH2) in the dehydrogenation process and designs a new type of single-atom catalyst to promote the process. Through calculations and simulations, it is found that the new catalyst can significantly reduce the energy barrier for dehydrogenation and the intrinsic reasons for its high catalytic activity are analyzed. This research provides new ideas and theoretical foundations for optimizing catalysts and designing new energy storage materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Huaxu Shao, Yike Huang, Huinan Guo, Yafei Liu, Yusang Guo, Yijing Wang
Summary: The utilization of tricarboxybenzene to construct stable Ni MOF catalyst for MgH2 improves the kinetics and cycle stability of the composite, enabling quick hydrogen desorption and retaining high capacity after multiple cycles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Pratibha Pal, Shivani Agarwal, Ajay Tiwari, Takayuki Ichikawa, Ankur Jain, Ambesh Dixit
Summary: The catalytic effects of exfoliated graphite and graphene nanoballs on the dehydrogenation kinetics of magnesium hydride were investigated. The results showed that the addition of catalysts significantly improved the dehydrogenation kinetics and reduced the activation energy. Graphene nanoballs modified magnesium hydride system exhibited the lowest onset dehydrogenation temperature, indicating better dehydrogenation performance compared to pure magnesium hydride.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Shuhua Zhou, Wei Zhang, Wenfeng Wang, Yaokun Fu, Han Yu, Lu Zhang, Jianzheng Song, Ying Cheng, Shumin Han
Summary: A novel method involving cosintering of an organic material, pure Mg, and a hydriding combustion synthesis technique has been reported to prepare MgH2 with amorphous carbon, resulting in significantly improved dehydrogenation capacity and kinetics compared to pure MgH2.
ACS APPLIED ENERGY MATERIALS
(2021)
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
Heng Lu, Jianbo Li, Tianyu Xie, Yu'an Chen, Yangfan Lu, Zhongqing Liu, Qian Li, Fusheng Pan
Summary: This study reports that with the help of Al/AlH3, NaBH4 can serve as a reversible hydrogen storage host and reactant in the Mg/MgH2 system. The addition of Al species can promote the decomposition and reformation of NaBH4, leading to improved performance of the hydrogen storage material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Lu Yang, Xiaojiang Hou, Kaiming Hou, Hongchang Shi, Lei Feng, Guoquan Suo, Xiaohui Ye, Li Zhang, Yanling Yang
Summary: This study investigates the effects of adding different catalysts to Mg-10 wt% Ni alloy on hydrogen production in simulated seawater, with the results showing that the addition of hollow SnO2 nanotubes and lamellar EG can improve hydrogen generation rates. The activity of catalysts on nucleation and growth of Mg(OH)(2) in the hydrolysis reaction stage influences hydrogen production performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Jiasi Luo, Wanting Sun, Dingshan Liang, K. C. Chan, Xu-Sheng Yang, Fuzeng Ren
Summary: Superior wear resistance can be achieved by in-situ formation of an amorphous-crystalline nanocomposite layer and gradient nanostructure during wear at elevated temperatures.
Article
Chemistry, Physical
Jingjing Wu, Bo Yuan, Yuyang Gu, Yifan Zhang, Zhongyuan Yan, Lida Zhang, Xusheng Yang, Haijiao Zhang, Ling Bai, Ziquan Li, Zhen-Dong Huang
Summary: A multifunctional BiOCl/amorphous antimony oxide (AAO) hetero-hybrid with the molar ratio of Bi3+/Sb3+ in 1/3 (1-BOC/3-AAO) is successfully developed by scalable ball-milling strategy. It exhibits exceptional visible light photocatalytic degradation performance of RhB and superior anodic potassium ion storage performance for potassium ion batteries. The hetero-hybrid possesses large specific surface area, narrow band gap, improved utilization of visible light, effectively suppressed recombination and highly enhanced transfer efficiency of the photogenerated charge carriers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Materials Science, Multidisciplinary
Shaojie Lv, Hong-Hui Wu, Kaiyang Wang, Shuize Wang, Guilin Wu, Junheng Gao, Xu-Sheng Yang, Jiaming Zhu, Xinping Mao
Summary: The influences of cooling rates, prior austenite grain size, and impurity inclusion density on the microstructure evolution of austenite-acicular ferrite transformation in low alloy steels were quantitatively evaluated by multi-phase-field simulation. The numerical results demonstrate that reducing prior austenite grain size, increasing cooling rate, and increasing inclusion nucleation density can effectively refine acicular ferrite grain size. The findings contribute to better regulating and designing acicular ferrite in steels.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Wanting Sun, Jiasi Luo, Yim Ying Chan, J. H. Luan, Xu-Sheng Yang
Summary: In this study, a laser surface remelting technique was used to fabricate a heterogeneous gradient nanostructured layer on an austenitic Hadfield manganese steel. The layer exhibited a gradient refinement process and had a core-shell structure with ultra-strong mechanical properties due to the extra work hardening ability induced by the strength-ductility synergy in the gradient nanostructure.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Yongyang Zhu, Jianding Li, Limei Yang, Xu-Sheng Yang, Qing Zhou, Renheng Tang, Shaoyang Shen, Liuzhang Ouyang
Summary: Metal borohydrides have high hydrogen storage capacities and are extensively studied. However, developing a low-cost and high-efficiency closed loop of hydrolysis and regeneration is challenging. This work provides an overview of the latest advances in hydrolysis and regeneration processes of Li(Na)BH4 and Mg(BH4)2, with a focus on NaBH4 hydrolysis and regeneration. The development of catalysts, synthesis techniques, and reducing agents for NaBH4 regeneration are discussed. The use of low-cost transition metal-based catalysts has shown great potential for catalyzing the hydrolysis reaction.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Jiasi Luo, Wanting Sun, Dingshan Liang, Wenqing Yang, K. C. Chan, Fuzeng Ren, Xu-Sheng Yang
Summary: Heterogeneous crystalline-amorphous nanostructures exhibit superior strength-ductility synergy through the cooperative effects of nanograins and amorphous grain boundaries in co-deformation. In this study, a facile laser surface remelting technique was successfully developed to fabricate a 100 μm-thick gradient nanostructured layer with phase decomposition on a TiZrHfTaNb0.2 high-entropy alloy. A 5 μm-thick crystalline-amorphous nanostructured surface layer with an average grain size of 7 nm was obtained. This nanostructured layer demonstrated an ultrahigh yield strength of 6.0 GPa and a compression strain of 25% during localized micro-pillar compression tests. Co-deformation cooperative mechanisms observed included well-retained dislocation activities in nanograins and crystallization in amorphous grain boundaries, resulting in grain coarsening through grain boundary-mediated plasticity. This study provides insights into the development of high-performance high-entropy alloys with novel crystalline-amorphous nanostructures and their plastic deformation mechanisms.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Rongjian Shi, Yanlin Wang, Supeng Lu, Saiyu Liu, Yanqi Tu, Shani Yang, Kewei Gao, Xu-Sheng Yang, Xiaolu Pang
Summary: The high-strength spring steel demonstrates superior hydrogen embrittlement resistance and satisfactory work hardening capacity after hydrogen pre-charging with dispersed multiple precipitates via multi-microalloying of 1.04 wt% Cr and 0.14 wt% V. The multiple precipitates include isolated (Mn, Cr, V)-enriched cementite, isolated V-enriched VC, and co-precipitation of cementite and VC, which act as effective hydrogen traps and reduce HE susceptibility by 23%, making this strategy beneficial for designing high-strength and HE-resistant automotive steels.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
De-Xin Zhu, Kun-Ming Pan, Yuan Wu, Xiao-Ye Zhou, Xiang-Yue Li, Yong-Peng Ren, Sai-Ru Shi, Hua Yu, Shi-Zhong Wei, Hong-Hui Wu, Xu-Sheng Yang
Summary: In this study, the dominant factors influencing the bulk modulus of intermetallic compounds were identified as B-cal, dB(avg), and TIE. Surrogate machine learning models using these features achieved a 95% accuracy in predicting bulk modulus. Symbolic regression provided an expression for the relationship between bulk modulus and the screened features. These findings offer a new approach for optimizing and predicting the bulk moduli of intermetallic compounds.
Article
Metallurgy & Metallurgical Engineering
Rongjian Shi, Yanqi Tu, Liang Yang, Saiyu Liu, Shani Yang, Kewei Gao, Xu-Sheng Yang, Xiaolu Pang
Summary: This study explored the influence of pre-strain and microstructures on the hydrogen trapping behaviors in 1-GPa high-strength martensitic steel. The results showed that the trapped reversible and trapped irreversible hydrogen contents significantly increased after a pre-strain of 5%. The microstructural evolution revealed that the presence of concomitant dislocation cell-twin duplex microstructure and tangled dislocations contributed to the enhanced hydrogen trapping.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Kaiyang Wang, Shaojie Lv, Honghui Wu, Guilin Wu, Shuize Wang, Junheng Gao, Jiaming Zhu, Xusheng Yang, Xinping Mao
Summary: This review summarizes the recent progress in using phase-field simulation to study the effects of alloy composition and casting process parameters on the solidification structure of metals. The effects of several typical elements and process parameters, including carbon, boron, silicon, cooling rate, pulling speed, scanning speed, anisotropy, and gravity, on the solidification structure are discussed. The future prospects of phase-field simulation and its widespread applications in simulating microstructures during solidification are also addressed.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Haoling Huo, Lin Cao, Jie Li, Huaijun Lin, Qiwei Wang, Xusheng Yang, Chuanjun Zang, Jingtao Zhang, Peng Zhang, Wei Li
Summary: In this study, modified coatings with PEEK and nanoparticles were utilized to enhance the strength and wear resistance. The addition of tantalum carbide nanoparticles showed the greatest improvement in mechanical behavior and wear resistance. The modified coatings have the potential to reduce stress on the titanium implant substrate and extend the lifespan of total knee replacement implants.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Kashif Naseem, Hao Zhong, Wenbin Jiang, Mili Liu, Chengguang Lang, Kang Chen, Liuzhang Ouyang, Jianmei Huang
Summary: In this study, a low-cost Mo2C catalyst was ball milled with Mg to produce a Mg-Mo2C composite, which exhibited rapid hydrolysis in seawater, generating over 851 mL g(-1) hydrogen in 10 min. The Mo2C maintained a high catalytic activity after recycling, and a hydrogen yield of over 90% after five cycles. The study also revealed that the micro galvanic cell and well-combined Mg-Mo2C interface formed during ball milling significantly enhanced the hydrolysis performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Yanyu Chen, Jie Li, Yingfei Yang, Junjie Yang, Huaijun Lin, Qiwei Wang, Xusheng Yang, Yuying Meng, Wei Li, Zhidan Lin, Peng Zhang
Summary: A novel porous polymer was prepared using the Pickering high internal phase emulsion (HIPE) template method for efficient oil-water separation from sewage. The addition of OTS-modified carbon nanotubes and surfactants improved the stability, mechanical properties, and separation efficiency of the polyHIPE. The 1%OTS-CNT polyHIPE exhibited high oil absorption capacity and maintained absorption efficiency even after multiple reapplications. Furthermore, the polymer showed superior antibacterial properties against E. coli and S. aureus.
Article
Engineering, Environmental
Yongyang Zhu, Xubo Li, Xu-Sheng Yang, Pengyun Chen, Gary Chi-Pong Tsui, Zheng-Long Xu, Renheng Tang, Fangming Xiao, Kangcheung Chan
Summary: Researchers have developed a low-cost BCC solid solution alloy with excellent activation performance and high effective hydrogen desorption capacity by using a new compositionally complex doping strategy. The synergistic effect of Nb, Fe, Co, Ni, and Mn elements has been confirmed to improve hydrogen storage performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
