JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Tong Xiao,Shuai Liu,Ting Liu,Guanbin Peng,Qingsong Meng,Xinshun Yuan,Jingyi Wu,Weimin Wang,Kaikai Song,Guoxing Li,Wei Chu,Lina Hu
The development of aqueous aluminum metal batteries is hampered by severe parasitic side reactions at the aluminum metal anode/electrolyte interface. In this work, aluminum-based amorphous alloy anodes are applied to aqueous aluminum metal batteries for the first time. Amorphous aluminum alloys exhibit higher adsorption energy for Al atoms and can regulate the Al 3 + deposition potential, thereby offering a kinetic advantage over the hydrogen evolution reaction. Their isotropic deposition behavior suppresses aluminum dendrite growth, while the amorphous structure also improves interfacial chemistry, mitigating anode self-corrosion and passivation. The coupling between the adsorbed atoms and the Al 85 Ni 10 Ce 5 substrate electrons is stronger, leading to more stable adsorption. Symmetric cells assembled with Al 85 Ni 10 Ce 5 amorphous alloys demonstrated stable cycling for 5000 h, which present the best cycling performance for bare anode for aqueous aluminum metal batteries at 0.1 mA cm −2 and 0.1 mAh cm −2 . Moreover, a full cell incorporating this anode with a K 2 CoFe(CN) 6 cathode delivered a high initial discharge capacity of 98.3 mAh g −1 . This work provides not only a scalable strategy for high performance aqueous aluminum metal batteries, but also theoretical guidance for the electrode optimization of other metal battery systems.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Zhan-jun Yang,Mi Li,Yan-Bo Cao,Yi Wu,Qiang Xu
This study addresses the issues of the limited contact interface between the fuel and the oxidizer. A strategy for simultaneously optimizing the formulation design and the preparation process was proposed. Three types of fuels - pure aluminum, aluminum-magnesium alloy, and aluminum-silicon alloy - were selected, and polyvinylidene fluoride (PVDF) was used as the binder. Six groups of thermal reaction samples were prepared by two methods: physical mixing (PM) and electrostatic spray atomization (ES). The microstructure, combustion characteristics, thermal behavior, and product composition of the samples were systematically studied using scanning electron microscopy, X-ray diffraction, high-speed photography, infrared thermal imaging, and synchronous thermal analysis. The results showed that the alloy fuels affected the later stage of the reaction by altering the melting behavior and surface oxide layer characteristics, while electrostatic spray atomization played a key role in the early stage, functioning by shortening the mass transfer distance and enhancing the “pre-ignition” effect of polyvinylidene fluoride. The coupling of fuel formulation and preparation process enables differential modulation of the combustion performance of Al/CuO thermites. This study provides an effective strategy for developing high-performance aluminum-based thermite materials.
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高影响因子
POWDER TECHNOLOGY
·
2026
·
IF 5.5
Xueling Yi,Jieran Fang,Yongwei Duan,Caihua Pan,Hongzhen Li,Xiaohui Duan
Microstructure construction is an effective strategy for regulating the performance of energetic materials. Herein, CL-20@Al microspheres were fabricated by integrating porous CL-20 spherulites with Al via a rapid solvent–nonsolvent method. The results show that Al is uniformly distributed on the surface of CL-20 spherulites, and the resulting CL-20@Al microspheres possess a narrow particle size distribution, abundant nanoscale pores and enhanced dispersibility. Compared to the physical mixture, the CL-20@Al microspheres demonstrate significantly improved energy release performance, with increases of 10.4% in heat release, 33.3% in peak pressure, and 24.4% in pressurization rate. Laser ignition further reveals a 72.5% reduction in ignition delay time and a 66.8% increase in combustion rate. Meanwhile, the CL-20@Al microspheres also exhibit significantly reduced impact sensitivity compared to CL-20 spherulites. The porous structure, intimate Al/CL-20 interfacial contact, and uniform Al distribution on the porous surface collectively enhance the laser ignition and energy release of CL-20@Al microspheres.
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Journal of Energy Storage
·
2026
·
IF 10.7
Yu-Han Yuan,He-Jie Wu,Jia Liang,Hai Huang,Gui-Fang Li,Jin-Wei Yan,Shuang-Lin Cai,Yong-Qi Ye,Ye Zeng,Ming-Ming Tao,Xiao-Hong Fan,Yi Li,Ding-Rong Deng,Qi-Hui Wu
Driven by the global push for sustainable energy, supercapacitors are regarded as competitive energy storage systems. Nevertheless, boosting their energy density and cycling durability remain core challenges. Herein, a La 2 O 3 /Al 2 O 3 heterostructure (La-Al-O) is in-situ fabricated on nickel foam (NF) via a hydrothermal route. Electrochemical activation converts crystalline La 2 O 3 into amorphous La 2 O 3 , triggering structural reconstruction: interwoven nanosheet networks evolve into loose, crumpled nanosheets. This transformation enriches oxygen vacancies and generates Ni(OH) 2 on NF to create abundant ion-accessible active sites, while Al 2 O 3 serves as a structural stabilizer against framework collapse (activated La-Al-O, abbreviated A-La-Al-O). In terms of electrochemical performance, the A-La-Al-O/NF electrode exhibited a high specific capacitance of 4.60 F·cm −2 at a current density of 5 mA·cm −2 . After 20,000 cycles at a scan rate of 20 mA·cm −2 , the cycle retention rate was 75.7%. For the assembled asymmetric device (denoted as A-La-Al-O/NF/activated carbon (AC)), an energy density of 49.41 Wh·kg −1 was achieved at a power density of 889.38 W·kg −1 , with a cycle retention rate of 82.5% after 20,000 cycles. This study adopts method combining hydrothermal and electrochemical activation without the need for binders, featuring a simple and convenient process. It provides a new insight for the high-value utilization of rare earths and the development of high-performance supercapacitors.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Wenxin Xia,Huan Ye,Guoxing Ren,Wenqing Zhao,Jiayu Hao,Wanwan Hong,Wenhua Xu,Dongfu Liu,Qiqi Huang,Jianwei Zhao,Songwen Xiao,Zhongwei Zhao
Na2FePO4F (NFPF) is a promising cathode material for sodium-ion batteries, yet it is still confronted with a cost–performance trade-off. In this study, a low-cost preparation method of high-performance NFPF cathode materials was proposed via an Al-doping strategy, using commercial FePO4 without premodification. The effect of the Al content on the crystal structure, sodium-ion diffusion kinetics, and electrochemical performance of NFPF was investigated in detail. X-ray diffraction and Rietveld refinements confirmed the high-purity phase. Na1.98Fe0.98Al0.02PO4F/C (NFPF-Al0.02) showed an excellent rate capability (57.7 vs 44.5 mAh·g–1 at 5.0 C) and better cycling stability (93.6% vs 66.7% after 100 cycles at 0.5 C) than the undoped NFPF sample. NFPF-Al0.02 also exhibited an excellent capacity retention of 84.6% after 1000 cycles at 5.0 C. GITT, CV, and EIS results revealed an order-of-magnitude increase in the sodium-ion diffusion coefficient of Al-doped NFPF-Al0.02 compared to that of pristine NFPF. A cost–performance comparison between this work and previous studies was conducted. In summary, this innovative method, which can produce high-performance NFPF cathode materials at low cost, is anticipated to significantly promote the commercialization of NFPF-based sodium-ion batteries.
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PubMed
高影响因子
FUEL PROCESSING TECHNOLOGY
·
2025
·
IF 7.7
Mengxiong Li,Chuxiang Sun,Qingyu Li,Qingchun Yang,Hongxin Wang,Xu Xu
This research investigates the combustion behavior of aluminum and boron loaded gel fuel droplets (10–20 wt%) under high-temperature and high-pressure conditions. High-speed and color imaging captured the combustion process. The addition of gellant induces micro-explosions that enhance the burning rate; however, increasing particle concentration weakens this effect. At high concentrations, early particle shell formation hinders gel layer development, suppressing micro-explosions. Both micro-explosions and particle shells promote liquid-phase combustion. At low concentrations, micro-explosions dominate the enhancement, while at high concentrations, larger, early-formed particle shells are the primary contributor. Increasing ambient pressure reduces micro-explosion intensity but shortens ignition delay and raises the burning rate. Under high pressure, weak micro-explosions offer less enhancement and lead to larger particle agglomerates. Aluminum and boron gel droplets show similar liquid-phase behavior, but differ in particle combustion: aluminum ignites under all conditions, while boron requires higher pressures. The combustion process of high-concentration gel droplets under elevated conditions is divided into four stages: Stable Combustion, Particle Shell Formation, Particle Agglomerate Ignition, and Molten Particle Combustion. This staged model emphasizes the dominant role of particle shells, with minor contributions from micro-explosions.
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高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2026
·
IF 3.3
Yuting Rao,Xiangju Liu,Chengtao Li,Qianwu Li,Qingliang Lv,Quantong Jiang,Nazhen Liu
B 4 C/Al neutron absorber materials are critical for the criticality safety of spent nuclear fuel wet storage, yet their corrosion-induced degradation poses a significant challenge to long-term operational reliability. This study systematically investigated the corrosion behavior and failure mechanism of a commercial B 4 C/Al composite during long-term immersion in a simulated spent fuel pool environment (2700 ppm boric acid at 40°C) via microstructural characterization and electrochemical analyses. Results indicate that the corrosion product layer exhibits a decelerating growth trend, and is mainly composed of non-protective aluminum oxides and hydroxides. Scanning kelvin probe (SKP) and in-situ scanning vibrating electrode technique (SVET) mapping revealed that preferential corrosion occurs at the interface, driven by the micro-galvanic coupling between the noble B 4 C particles (micro-cathodes) and the active Al matrix (micro-anodes). The rapid interfacial dissolution undermines the matrix support, causing the neutron-absorbing B 4 C particles to undergo mechanical loosening and detach along with the shedding of the loose corrosion product layer, thereby posing a potential risk to the material’s functional performance.
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Journal of Materials Research and Technology-JMR&T
·
2024
·
IF 6.2
Peibo Li,Guoqiang Luo,Xiaoshan Zhang,Yi Sun,Qiang Shen
The microstructural design offers an effective strategy for overcoming the strength-ductility trade-off in Al-based composites. In this study, we demonstrate concurrent improvements in strength and ductility of Al-Cu composites by introducing heterogeneous structures, including low-angle grain boundaries (LAGBs), stacking faults (SFs), and nano-CuAl₂. A high density of LAGBs refines Al grains by absorbing dislocation into high-angle grain boundaries (HAGBs) during deformation, which helps to suppress crack propagation under plastic deformation. The absorption of dislocations by LAGBs prevents dislocation pile-up at grain boundaries, thereby reducing stress concentration. The stacking fault network formed at the heterogeneous interface between Al and CuAl₂ effectively reduces the mean free path of dislocation motion, overcoming the Hall-Petch limit in microcrystalline grains. Nano-particles further contribute to Orowan strengthening by hindering dislocation motion. The synergistic effect of these heterogeneous structures successfully evades the strength-ductility trade-off in Al-Cu composites, providing an efficient strategy by multiscale defects to facilitate maintaining plasticity in metal-matrix composites. Employing multiscale defects provides an efficient strategy to maintain plasticity in metal-matrix composites.
研究领域:
材料科学
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金属基复合材料
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材料力学性能
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微观结构设计
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DOI
高影响因子
MOLECULES
·
2026
·Vol. 31
·期 5
·891
·
IF 5.1
He Wang,Zhiyan Zhang,Yingying Xu,Yang Lu,Ying Tian,Guangjie Zhang,Sifan Liu,Shuchen Liu
The separation of xenon (Xe) and krypton (Kr) is very important for industrial applications and environmental protection. However, the lack of permanent dipoles, low polarizabilities arising from their spherical nature, and similar kinetic diameters make their efficient separation by porous adsorbents exceptionally challenging. This study explored the effects of pore geometry and surface polarity of a series of aluminum-based metal–organic frameworks (CAU-10-H, MIL-160, KMF-1, CAU-23) on Xe/Kr separation performance using a heteroatom engineering strategy. These MOFs are composed of AlO 6 clusters and bent dicarboxylic acid linkers, enabling us to systematically investigate the effects of pore size and heteroatom types on Xe/Kr separation performance. Among them, MIL-160 has a polar linker based on furan, showing the best balance performance. At 298 K and 1.0 bar, the uptake of Xe is 4.12 mmol g −1 and the IAST selectivity is 7.63 for a Xe/Kr (20/80) mixture. The practical performance was verified by dynamic breakthrough experiments, which yielded a long Xe breakthrough time of 42.9 min g −1 . Grand Canonical Monte Carlo (GCMC) simulations and first-principles density functional theory (DFT) calculations revealed that the enhanced performance originates from cooperative confinement and polarization effects, with the furanyl oxygen atoms providing optimal Xe-binding sites. This work clarifies the structure–property relationships governing Xe/Kr separation in aluminum-based MOFs (Al-MOFs), highlighting the potential of heteroatom engineering for designing efficient noble gas adsorbents.
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PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
·
IF 3.428
Yan Fu,Ye Li,Jun Zhang,Dongxue Liu,Chang Liu,Yi Ke
Antimony is a new type of pollutant with potential toxicity and carcinogenicity. Therefore, the restoration of antimony-contaminated water has attracted wide attention from all over the world. In this research, we synthesized chloride intercalated Ni-Al layered double hydroxide (Ni-Al LDH) with a good laminated structure by co-precipitation and ion exchange. We investigated the adsorption performance of Ni-Al LDH for Sb(V) in a one-component system for the first time through a series of batch experiments. The effect of key process variables, such as pH, reaction temperature, adsorbent dosage, contact time and initial concentration on the adsorption was studied in single-factor experiments separately. The reaction rapidly reached adsorption equilibrium within 30 min and it maintained the antimony removal rate at about 91% at the optimum reaction conditions. Multiple models were applied to fit the adsorption isotherm, kinetic and thermodynamic data to describe the adsorption behaviors of Sb(V) on Ni-Al LDH. A perfect fit between the Langmuir model and isothermal adsorption experimental data confirmed a maximum adsorption capacity of material could be up to 142.86 mg/g. SEM-EDS, XPS, and other characterization analyses demonstrated that ion exchange and ligand exchange are the primary mechanisms for triggering the adsorption process. It proved the excellent regeneration performance of the material by data from five stable adsorption/desorption cycles. It could be demonstrated that Ni-Al LDH could be an applicable adsorbent for the removal of Sb(V) .
研究领域:
环境科学
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材料化学
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水处理
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吸附技术
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污染物去除
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高影响因子
Sustainable Energy & Fuels
·
2023
·Vol. 7
·期 4
·1027-1040
·
IF 5.6
Ke Gao,Xianglei Liu,Qi Wang,Zhixing Jiang,Cheng Tian,Nan Sun,Yimin Xuan
Solar thermochemical CO2 splitting has emerged as a promising strategy for solar fuel production to alleviate climate change challenges and reduce the energy crisis. However, traditional redox materials still suffer from low CO production, poor cycle stability, high operating temperature, and large temperature swing, leading to low solar-to-fuel efficiency. Herein, Ce- and Al-doped SrMnO3 perovskites are proposed for high-performance solar thermochemical CO2 splitting within moderate temperature swing (1350/1100 °C). Sr0.6Ce0.4Mn0.8Al0.2O3 demonstrates a remarkable CO yield of 799.34 μmol g−1, which is ∼6.67 times as high as that of benchmark CeO2. Fast CO2 splitting kinetics of SCMA20 is demonstrated by the CO peak production rate enhanced by 142% compared with undoped SrMnO3. The proposed Sr0.6Ce0.4Mn0.8Al0.2O3 also exhibits excellent stability with no obvious deactivation or degradation over multiple cycles. The ultrahigh CO yield can be attributed to lower oxygen vacancy formation (3.65 eV) and migration energy (2.14 eV) as confirmed by DFT calculations, and the transformation of the first-order reaction (F1) to the second-order reaction (F2) compared to SrMnO3. This work provides a new path for high-performance solar thermochemical CO2 splitting with high CO production, fast reaction kinetics, good cycling stability, moderate temperature swing, and high solar absorptance.
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高影响因子
FUEL PROCESSING TECHNOLOGY
·
2022
·
IF 8.129
Hao Zhu,Fei Wang,Jianchun Jiang,Zeng Zhang,Yuchan Du,Junfeng Feng,Xiaoxiang Jiang
In order to deal with the deficiency of active sites in Ni catalyst, Ni Fe nanosheet (Ni-Fe/Al 2 O 3 -NS) catalyst was synthesized by using Ni-Fe-Al LDH as the precursor. The catalyst was further utilized in the lipid hydrotreatment for green diesel production. With a lamellar structure and large Ni loading (more than 60%), the Ni-Fe/Al 2 O 3 -NS catalyst possessed abundant Ni sties with high dispersion, large surface area, and strong acidity. Moreover, in Ni-Fe/Al 2 O 3 -NS the highly active Ni 3 Fe phase was formed, which promoted the decarbonylation route in hydrotreatment. The Ni-Fe/Al 2 O 3 -NS catalyst achieved 98.7% conversion with 98.1% alkane yield in oleic acid hydrotreatment under very mild conditions (220 °C, 2 MPa of hydrogen pressure, 3 h). The catalytic performance of Ni-Fe/Al 2 O 3 -NS was much higher than traditional Ni-Fe/Al 2 O 3 and other catalysts reported in current related studies.
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高影响因子
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