Article
Materials Science, Multidisciplinary
Mingyuan Piao, Xuezhang Xiao, Ziming Cao, Panpan Zhou, Liujun Zhan, Jiacheng Qi, Zhinian Li, Lijun Jiang, Lixin Chen
Summary: In this study, low-cost Ti0.95Zr0.07Cr1.7-xMn0.3Fex (x = 0-0.5) alloys were designed and prepared to achieve hydrogen compression at 8-22 MPa under mild conditions. The effect of Fe substitution for Cr on the microstructure and hydrogen storage properties of the alloys was investigated, and an optimal alloy, Ti0.95Zr0.07Cr1.3Mn0.3Fe0.4, was proposed and experimentally proved to exhibit the best overall performances. This study provides comprehensive insights into the design and application of low-cost hydrogen storage alloys.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Ziming Cao, Mingyuan Piao, Xuezhang Xiao, Liujun Zhan, Panpan Zhou, Zhinian Li, Shumao Wang, Lijun Jiang, Fen Xu, Lixian Sun, Lixin Chen
Summary: In this study, three series of alloys were prepared and their crystal structural characteristics and hydrogen storage properties were investigated. The results showed that a single C14-Laves phase with homogeneous element distribution existed in all alloys. The hydrogen absorption/desorption plateau of the alloys increased as the Fe, Mn, or Ti content increased. The hydrogen storage capacity of the alloys also correlated negatively with the hydrogen affinity of interstitial sites. Ti0.935Zr0.085Cr1.3Mn0.3Fe0.4 alloy exhibited saturated hydrogenation under 8 MPa at 293 K and dehydrogenation around 24.91 MPa pressure at 363 K with a hydrogen capacity of 1.74 wt%, as well as excellent cycling performance and mere hysteresis. Ti0.92Zr0.10Cr1.0Mn0.6Fe0.4 alloy showed promising hydrogen capacity of 1.86 wt% at 283 K and a dehydrogenation pressure of 27.94 MPa at 363 K, along with satisfactory cycling durability. This study can guide the compositional design of AB2-type hydrogen storage alloys for hydrogen compression application.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jussara Barale, Jose Ramon Ares, Paola Rizzi, Marcello Baricco, Jose Francisco Fernandez Rios
Summary: To replace mechanical compressors in hydrogen infrastructures, new compositions are needed to achieve a pressure of 700 bar. This study synthesized and characterized Ti1.1(Cr,Mn,V)2 and Ti1.1(Cr,Mn,V,Fe)2 compositions based on Laves (C14) intermetallic compounds, which show increased plateau pressure and hysteresis gap due to the substitution of Cr with Mn and Fe. These alloys have suitable thermodynamics for high-pressure hydrogen compression, easy activation at room temperature, and fast reaction rates. The most promising composition, Ti1.1Cr0.9Mn0.8V0.1Fe0.2, is estimated to release hydrogen at 700 bar and 150 degrees C. The integration of these alloys in a metal hydride compressor is evaluated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Bing Tu, Hui Wang, Yin Wang, Rui Li, Liuzhang Ouyang, Renheng Tang
Summary: In this work, Ti-Zr-Cr-based AB(2)-type Ti-based alloys with progressive Mn, Ni, and V substitutions were developed for reversible hydrogen storage under ambient conditions. The optimized alloy (Ti0.8Zr0.2)(1.1)Mn1.2Cr0.55Ni0.2V0.05 exhibited good hydrogen storage performance, making it suitable for use in hybrid hydrogen tank of fuel cell bicycles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Hayoung Kim, Mohammad Faisal, Sang-In Lee, Jee Yun Jung, Han-Jin Kim, Jihyun Hong, Young-Su Lee, Jae-Hyeok Shim, Young Whan Cho, Do Hyang Kim, Jin-Yoo Suh
Summary: TiFe-based alloys with a secondary AB(2) phase can address the activation issue, leading to improved practical application potential. Adjusting the Cr concentration in the Ti-Fe-Cr alloys can enable activation at room temperature and optimize reversible capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Panpan Zhou, Ziming Cao, Xuezhang Xiao, Liujun Zhan, Shouquan Li, Zhinian Li, Lijun Jiang, Lixin Chen
Summary: Two series of Ti-based alloys were developed for high-density hydrogen storage units by partially substituting Zr for Ti and Cr for Mn, with systematic investigation on their microstructures and hydrogen storage performances. The study found that the hydrogen storage capacity and plateau pressures of the alloys varied with different alloy compositions, and Ti0.95Zr0.05Mn0.9Cr0.9V0.2 alloy exhibited the best hydrogen storage performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Quan Li, Zhuoya Peng, Wenbin Jiang, Liuzhang Ouyang, Hui Wang, Jiangwen Liu, Min Zhu
Summary: A series of Ti-Zr-Cr-Fe alloys have been designed for a metal hydride hydrogen compressor through orthogonal experiments. The effects of substitution and over-stoichiometry on hydrogen storage properties were investigated, with the (Ti0.85Zr0.15)(1.05)Cr1.1Fe0.9 alloy selected for its maximum storage capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
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)
Article
Chemistry, Physical
Rama Srinivas Varanasi, Motomichi Koyama, Hiroyuki Saitoh, Reina Utsumi, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama
Summary: The phase transformations and microstructure changes during the depressurization of non-hydrogenated and hydrogenated Fe-Mn-Si-Cr alloy were investigated. Understanding the effects of hydrogenation on the stability of the austenite phase in Fe-based alloys is crucial.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Qiuwei Xing, Ana C. Feltrin, Farid Akhtar
Summary: The novel high-entropy alloy composite exhibited superior wear resistance against Si3N4 ceramic due to the presence of reinforcing C14 laves phase and carbide particles in the high-entropy alloy matrix. At high temperatures, the wear rate decreased with increasing temperature, with adhesive wear, abrasive wear, oxidation wear, and delamination wear identified as the main wear mechanisms. The formation of multiple oxides, the presence of Laves and carbide phase contributed to the low volume loss of high-entropy alloy composite during wear tests at elevated temperatures.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhuoya Peng, Quan Li, Jiangyong Sun, Kang Chen, Wenbin Jiang, Hui Wang, Jiangwen Liu, Liuzhang Ouyang, Min Zhu
Summary: The study focuses on Ti-Cr-Mn-Fe-based alloys synthesized by vacuum arc melting for hydrogen compression applications. By optimizing the alloy composition, it is possible to improve the performance of the final-stage compression units, such as increasing the unit cell volume and maximum hydrogen capacity while reducing dissociation pressures and plateau hysteresis at 223 K.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Gloria Graf, Malina Seyffertitz, Petra Spoerk-Erdely, Helmut Clemens, Andreas Stark, Lukas Hatzenbichler, David Holec, Michael Burtscher, Daniel Kiener, Xiaobing Li, Kui Liu
Summary: In order to promote the use of intermetallic γ-TiAl based alloys in the aircraft and automotive sector, recent research has focused on the development of low-cost titanium aluminides. The addition of manganese has shown potential to replace more expensive alloying elements and improve the ductility. However, Mn-containing alloys are prone to the formation of undesired brittle phases, which can affect the ductility. This study investigated the transformation kinetics and stability range of a specific brittle phase in a low-cost Ti-42Al-5Mn alloy using experimental and computational approaches. The results provide valuable insights for the future design of low-cost γ-TiAl based alloys.
Article
Chemistry, Physical
Toshiaki Fukagawa, Yasuyuki Saito, Akihiro Matsuyama
Summary: The study found that with an increase in x value, the secondary phase of HEAs increased, resulting in lower hydrogen storage capacity and unstable hydrides. After alkaline treatment, the HEA alloy surface changed, leading to increased discharge capacity, enhanced high-rate dischargeability, and cycle performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Raghvendra Tewari, B. Vishwanadh, Vijay K. Vasudevan
Summary: This study reports the formation of Laves phase in Nb-Ti-Cr-Si-X-based alloys for high-temperature aerospace engine applications. The morphologies of the Laves phases vary depending on the heat treatment, and the observed phases have crystallographic defects.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2022)
Review
Chemistry, Physical
Leandro Serrano, Maria Moussa, Jie-Yi Yao, Gilbert Silva, Jean -Louis Bobet, Sydney Ferreira Santos, Katia Regina Cardoso
Summary: The development of novel high entropy alloys (HEA) of the TiVNbCrMn system for hydrogen storage is reported. The CALPHAD method was used to design alloys with a body centered cubic structures. Hydrogen absorption/desorption cycles were performed for two alloys showing promising results since the maximum capacity of the alloys has been maintained despite a reduction in absorption kinetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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
Chemistry, Physical
Yongyang Zhu, Yin Wang, Liming Zeng, Daifeng Wu, Cifu Lu, Xu-Sheng Yang, Qing Zhou, Renheng Tang, Fangming Xiao
Summary: MgH2@M(BH4)x composites were synthesized by ball milling MgH2 with cheap metaborates, and the MgH2-4 mol% NaBO2 composite achieved the best hydrolysis performance, releasing 1597.2 mL g-1 of hydrogen in 60 minutes.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ziquan Li, Jinquan Wen, Yuqing Cai, Fengting Lv, Xu Zeng, Qian Liu, Titus Masese, Chuanxiang Zhang, Xusheng Yang, Yanwen Ma, Haijiao Zhang, Zhen-Dong Huang
Summary: A new Bi-Ti-EG compound is reported as a high-capacity and stable anode material for potassium storage. It possesses a long-range disordered layered framework that can facilitate electrolyte ingress into Bi nanoparticles, thereby enhancing the storage capacity and cycling stability.
ADVANCED FUNCTIONAL MATERIALS
(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
Materials Science, Multidisciplinary
Shaojie Lv, Hong-Hui Wu, Kaiyang Wang, Jiaming Zhu, Shuize Wang, Guilin Wu, Junheng Gao, Xu-Sheng Yang, Xinping Mao
Summary: The austenite to ferrite phase transformation is a crucial structural change in steel production, with the ferrite morphology and grain size significantly impacting the mechanical properties of steel materials. This study investigates the effects of cooling rate, prior austenite grain size (PAGS), and Mn content on the microstructure evolution of the austenite-to-polygonal ferrite phase transformation using a multi-phase-field model. The findings reveal that higher cooling rates enhance the driving force for the phase transformation and delay the process. Decreasing PAGS increases the proportion of austenite grain boundaries, providing more nucleation sites for polygonal ferrite and resulting in refined grain size. Furthermore, increased Mn content leads to significant grain refinement by reducing the transformation temperature. This work provides valuable insights for adjusting and designing desired microstructures of polygonal ferrite to enhance the mechanical performance of steel.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Yuqing Cai, Wenjing Liu, Fangfei Chang, Su Jin, Xusheng Yang, Chuanxiang Zhang, Ling Bai, Titus Masese, Ziquan Li, Zhen-Dong Huang
Summary: In this study, Ni, Fe, Mg, and Ti elements were introduced into Mn-based layered oxide to design a high-entropy compound HE-KMO, which demonstrated exceptional rate capability and cyclic stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ling Wang, Dongxuan Li, Yawen Huang, Ruiqi Mao, Boqing Zhang, Fengxiong Luo, Peiyang Gu, Ping Song, Xiang Ge, Jian Lu, Xusheng Yang, Yujiang Fan, Xingdong Zhang, Kefeng Wang
Summary: In this study, enhanced in situ mineralization through the combination of enzymatic and anion-boosted mineralization is applied, resulting in improved mineralization efficiency, mineral content, and mechanical properties. The mechanism of mineralization enhancement is investigated through computational calculations and in vitro mineralization experiments. The strategy is shown to have potential applications in cranial bone repair.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Environmental Sciences
Jiahui Zhao, Lin Cao, Xiao Wang, Haoling Huo, Huaijun Lin, Qiwei Wang, Xusheng Yang, Florian Vogel, Wei Li, Zhidan Lin, Peng Zhang
Summary: Metal organic frameworks (MOFs) have great potential in improving the performance of water treatment membranes. In this study, novel nanoparticles based on both nanoporous MOFs and organic PDA layer were used as dopants for PES ultrafiltration membranes. The resulting membranes showed enhanced permeability and anti-fouling properties, and demonstrated promising applications in oily sewage remediation.
ENVIRONMENTAL RESEARCH
(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, Multidisciplinary
Shaojie Lv, Hong-Hui Wu, Kaiyang Wang, Chaolei Zhang, Jiaming Zhu, Shuize Wang, Guilin Wu, Junheng Gao, Xu-Sheng Yang, Xinping Mao
Summary: In this study, the austenitic-pearlite transformation and its effects on microstructure evolution were investigated using a CALPHAD-based model. The results showed that the isothermal transformation temperature, cooling rate, and Mn content significantly influenced the pearlite transformation process, and the multi-component diffusion played a critical role in pearlite growth.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Dexin Zhu, Kunming Pan, Hong-Hui Wu, Yuan Wu, Jie Xiong, Xu-Sheng Yang, Yongpeng Ren, Hua Yu, Shizhong Wei, Turab Lookman
Summary: This study investigates the intrinsic factors influencing the ductile-to-brittle transition temperatures (DBTT) of Fe-Al intermetallic compounds and develops machine learning strategies for accurate prediction of DBTT. By utilizing selected features, surrogate models achieve a high accuracy of 95% and a functional expression capturing the relationship between DBTT and features is derived through symbolic regression.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(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)
