Journal of Sustainable Metallurgy
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2025
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IF 3.2
Shao Shuang,Ma Baozhong,Wang Chengyan,Chen Yongqiang
Extracting Al from coal gangue has the double benefits of realizing the high-value application of coal gangue and mitigating the scarcity of bauxite resource. The key Al-containing minerals in coal gangue include kaolinite and boehmite, and thermal activation is pivotal for stimulating their reactivity. In this study, kaolinite and boehmite were subjected to thermal activation and acid leaching to explore the intrinsic link between their thermal evolution and leaching activity. Results showed that the phase evolution of kaolinite followed a multi-step sequential process in the order of kaolinite → metakaolinite → γ -Al 2 O 3 → mullite, and Al V in metakaolinite was highly active. For boehmite, it underwent the transformation of boehmite → γ -Al 2 O 3 → δ -Al 2 O 3 → θ -Al 2 O 3 and α -Al 2 O 3 successively. Their reactivity in descending order was γ -Al 2 O 3 > δ -Al 2 O 3 > boehmite > α -Al 2 O 3 . Furthermore, a comparative study of leaching temperature demonstrated that elevated temperature favorably strengthened the thermodynamic driving force and greatly promoted the Al extraction. This study is of some theoretical significance for guiding the thermal activation and acid leaching of coal gangue. Graphical
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Journal of Energy Chemistry
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2025
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IF 14.9
Ali Hammad,Siyi Zou,Fandi Ning,Ghulam Nabi,Yuzhuo Jiang,Bin Tian,Wentao Huang,Muhammad Rashid,Shiqi Zhao,Xiaochun Zhou
Inorganic materials can solve transportable and on-site hydrolytic hydrogen generation issues. CaH 2 /(Al/Si) composites are preferable due to their notable chemical properties. However, these composites require pretreatments, an inert environment, and long hours of physical ball milling for high homogeneity and synergistic effects. CaH 2 also inhibits the hydrolysis reaction by forming its products on the Al/Si surface, which hinders the direct utilization of composites. This work represents the first investigation of NaH-CaH 2 (Al/Si) fuel composites, which greatly overcome these limitations and can be directly used for on-site hydrogen generation and proton exchange membrane (PEM) fuel cells. The NaH-CaH 2 (Al/Si) fuel composites were prepared by using a straightforward mixing method with variable composition ratios, showing high H 2 yield and fuel cell (FC) performance. NaH addition provides the bridge effect, which opens up a new way to enable efficient hydrolysis and greatly enhances the hydrolysis activity of CaH 2 /(Al/Si) composites. The novel fuel composites (NaH-CaH 2 /Al) have extraordinary FC performance and a 0.42 W/cm 2 peak power density greater than commercial hydrogen generators. It provides high H 2 yield 84.4 % for NaH-CaH 2 /Al and 82 % for NaH-CaH 2 /Si compared to NaOH-CaH 2 (Al/Si), NaCl-CaH 2 (Al/Si), and KCl-CaH 2 (Al/Si) composites. The NaH bridge effect hinders the direct water contact and stops the formation of Ca(OH) 2 around Al/Si, which provides adequate pathways for the CaH 2 (Al/Si) hydrolysis. The impressive capabilities of novel fuel composites are anticipated to offer practical uses in fuel cells, automobile applications, and portable/on-board H 2 generation.
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APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Xihui Cheng,Pengcheng Wang,Jiwei Li,Na Wang
In the field of human thermal comfort management, the development of functional textiles plays a critical role in enhancing human health and energy efficiency. Although significant progress has been made in human thermal management textiles, the construction of radiative cooling textiles with superior wearing comfort remains a considerable challenge. In this work, we present a trilayer-structured fabric composed of an electrospun polyvinylidene fluoride-hexafluoropropylene/hexagonal boron nitride (PVDF-HFP/h-BN) nanofibrous membrane (NFM) as the underlying layer, a magnetron sputtered aluminum (Al) film as the intermediate layer, and a sprayed JF-6011 coating as the upper layer. The obtained composite JF-Al 20 @P/h-BN 7.5 NFM features a well-regulated micro-nano porous structure and distinctive optical properties, achieving a solar reflectance of 94.33 % and an atmospheric window emissivity of 92.63 %. Under a solar irradiance of approximately 950 W/m 2 , the skin simulator covered with the JF-Al 20 @P/h-BN 7.5 NFM showed temperature reductions of 13.5, 13.3, and 8 °C compared to those covered with commercial cotton, nylon, and polyester fabrics, respectively. Additionally, the composite NFM possesses unidirectional moisture transport capabilities while maintaining excellent air permeability (331.75 mm/s) and moisture vapor transmission rate (7.98 kg/m 2 /D). This study provides valuable insights into the design of thermally comfortable textiles for high-temperature environments.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2025
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IF 6.1
Fangjing Xiao,Guibin Jiang,Duo Bu,Jianjie Fu,Xiaomei Cui,Qiangying Zhang
A porous aluminum–cerium (Al/Ce) composite oxide was innovatively synthesized via a one-step, template-free evaporation–pyrolysis route, enabling in-situ formation of sulfate-templated mesopores and dual-functional –OH/SO 4 2 ⁻ sites. Designed to address the severe ion interference of geothermal water, this bifunctional adsorbent achieved rapid, simultaneous removal of arsenic (As) and fluoride (F⁻) with high efficiencies (93.8 % As, 91.5 % F⁻) within 15 min. Maximum adsorption capacities reached 251 mg/g (As) and 297 mg/g (F⁻), following pseudo-second-order kinetics and Freundlich isotherms. Thermodynamic analysis confirmed spontaneous, endothermic chemisorption. Structural characterizations (FT-IR, XRD, XPS) revealed ion exchange and surface complexation mechanisms via formation of Al–F, Ce–F, and Ce–O–As bonds. Remarkably, in real geothermal matrices rich in competing ions, removal efficiencies exceeded 96 %, underscoring the composite's strong anti-interference performance. This study demonstrates a scalable, environmentally friendly strategy for fabricating robust, synergistic adsorbents tailored for complex wastewater treatment.
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PubMed
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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2025
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IF 3
Md Mostafezur Rahman,Shuai-Wen Ding,Mohanraj Kumar,Wei Zhang,Jih-Hsing Chang
Magnetic nanoparticles (MNPs) with temperature-dependent heating behavior offer a promising strategy for self-regulated magnetic induction hyperthermia (MIH) in cancer treatment. This study simulates the temperature-dependent heating performance of Al-doped Zn Mn ferrite nanoparticles (Zn 0.5 Mn 0.5 Al x Fe 2-x O 4 ) in a human liver tumor model, using experimentally validated parameters from previous characterization. The model evaluates in-tumor heating under physiological conditions, focusing on temperature rise, spatial uniformity, and thermal stability. The results confirm that MNPs with lower Curie temperatures (T C ) offer better temperature control, while higher-T C particles enable more efficient heating at reduced concentrations. Experimental validation using magnetic hydrogel phantoms demonstrated good agreement with simulation predictions, with temperature deviations within ±1.5 °C. These findings highlight the importance of incorporating temperature-dependent specific loss power (SLP) behavior for accurate modeling of hyperthermia outcomes and provide a practical framework for optimizing MNP selection and dosage for safe and effective treatment.
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Energetic Materials Frontiers
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2025
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IF 3.9
Jia-he Li,Feng Hao,Chang-sheng Tang,Lu-yang Wang,Yan-qiu Jiang,Yu-lin Yang,De-bin Xia,Jian Zhang,Ping Wang,Kai-feng Lin
Alloy based composite fuel has been widely studied for its higher combustion effect and energy release, compared with traditional metal fuels. The doping of organometallic salt was the key to facilitating the mass and heat transfer process in propellant combustion. In this study, the Al-Li particles were stabilized through tris(hydroxymethyl)aminomethane hydrochloride (TH) firstly, and the copper perfluorooctanoate Cu(PFO) 2 was obtained through a double displacement reaction and characterized by X-ray diffraction (XRD), fourier transform infrared spectrometer (FT-IR), Ultraviolet–visible spectroscopy (UV-vis), scanning electron microscope (SEM) and thermogravimetric analysis and differential scanning calorimeter (TG-DSC) tests. Owing to the characteristics of easy film formation, the Cu(PFO) 2 could be attached to the passivated Al-Li@TH surface through the solvent evaporation method with good hydrophobicity. The thermal oxidation and combustion characteristics were evaluated by TG-DSC and ignition test for the Al-Li@TH@Cu(PFO) 2 and propellants. The Al-Li@TH@5Cu(PFO) 2 propellant had a better burning rate of 1.21 mm·s -1 , a shorter ignition delay time of 0.67 s, a higher combustion temperature of 1411.26°C and smaller combustion residue distribution with an obvious micro-explosion effect and more stable combustion. The existence of AlF 3 also proved that the release of corrosive gases produced by Cu(PFO) 2 decomposition, which could effectively promote the rupture of Al-Li alloy shell. Besides, the activation energy of Al-Li@TH@5Cu(PFO) 2 and AP could be reduced to 139.37 kJ·mol -1 with a better catalytic effect. The combustion mechanism had also been analyzed through the combustion phenomena and residue composition. The exploration of propellant combustion could offer a promising avenue for applying Al-Li alloys in various propulsion systems.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Jibao Dong,Jing Jin,Weiguang Yang
Si-based anodes are limited in their widespread application mainly because of their significant volume expansion during cycling. In this study, the hollow Si thin film anode (H-Si-0.1) was prepared using ZIF-8 as a sacrificial template, followed by etching with 0.1 M hydrochloric acid (HCl). The hollow Si was coated with dual Al layers on its inner and outer surfaces, forming the Al/H-Si-0.1/Al composite thin film anode. The hollow structure provides buffering space to accommodate volume change and facilitates the formation of a gyrification-like structure on the film anode during cycling, significantly enhancing cycling stability. Moreover, the hollow structure creates efficient diffusion pathways for lithium ions, improving ion transport. The dual Al layers provide mechanical support for the structural stability of the anode and suppress side reactions. The Al/H-Si-0.1/Al thin film anode provides a high reversible capacity of 2098 mA h g −1 at 0.5 A g −1 . It exhibits a specific capacity of 1512 mA h g −1 at 5 A g −1 after 300 cycles, achieving a capacity retention of 94.56 %.
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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2024
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IF 2.9
Lei Guo,Lei Zhu,Yue Huang,Yan Tan,Alessandra Gilda Ritacca,Xingwen Zheng,Senlin Leng,Baoguo Wang
Alkaline Al-air batteries (AABs) are gaining increasing attention for large-scale energy storage systems due to their attractive intrinsic safety and cost-effectiveness. Nonetheless, future development of AABs is substantially hampered by water-induced self-corrosion processes on the Al anode. In this work, we introduce an amino acid derivative, namely Nα-Boc-N1-formyl-L-tryptophan (NBLT), into 4 M NaOH electrolyte to construct a unique layer that can effectively regulate the surface microstructure of Al anode. The findings of the experiments show that NBLT can be used as a reliable corrosion inhibitor. The effectiveness of the inhibitor increases with NBLT concentration, reaching a maximum of 73.9% at 1.5 mM. In comparison to the pristine condition, there is a significant increase in anode utilization from 31.8% to 82.9%, capacity density from 947.9 to 2469.1 mAh g−1, and energy density from 1261.6 to 3384.6 Wh kg−1. Theoretical calculations indicate that the carboxyl moieties present in the NBLT molecule establish coordination bonds with the Al atoms, thereby exerting a dominant role on the formation of the self-assembled barrier. The present investigation paves an effective strategy to inhibit reactions between anodes and electrolytes for advanced AABs.
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Energy Storage Materials
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2020
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IF 16.28
Pengfei Sun,Juntong Chen,Yuanlin Huang,Jing-Hua Tian,Sha Li,Gulian Wang,Qiaobao Zhang,Zhaowu Tian,Li Zhang
Al-air batteries (AABs) are a great option for outdoor wearable electronics due to their high theoretical energy density (8100 Wh kg −1 ), huge industrial reserves and easy recyclability of Al, but suffer from severe self-corrosion, low Al utilization and harmful liquid leakage. Herein, we first devise a high-strength agarose gel electrolyte (AGE) that combines high toughness and super solution carrying capacity, for the construction of wearable AABs with high energy density, safety, easy assembly and greatly suppressed self-corrosion. The rigid AGEs convert the traditional Al/liquid interface into an Al/quasi-solid interface, thus leading to the formation of a Sn-dominated passivation layer that drastically inhibits the self-corrosion of Al. The in-depth failure mechanism study of AGE-based AAB coin cells demonstrates that three most critical factors affecting the discharge behavior of Al anodes are in order: H 2 accumulation, working current density and OH − replenishment. On this basis, the optimized large-area soft-package AAB (10 cm 2 ) shows a 20.1-hour discharge duration and a specific capacity of 2148.5 mAh g −1 (2766.9 Wh kg −1 ), outperforming those of the state-of-the-art AABs based on other gel electrolytes. More impressively, a practically useful wearable AAB pack is further prepared to drive the LED array and a smart phone.
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JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Jiao Ma,Qin Zhu,Zhihui Qian,Wei Bai,Rui Liu,Long Shi,Yongsheng Yang,Yujiao Guo,Mingwu Xiang,Junming Guo
The drawbacks of Jahn-Teller (J-T) effect, capacity decay at high temperature and the dissolution of Mn generated at elevated current density limit the large-scale application of LiMn 2 O 4 batteries . Herein, a Si 4+ /Al 3+ co-doping strategy of LiMn 2 O 4 is carefully developed to stabilize the [MnO 6 ] framework, thereby inhibiting the J-T distortion and ultimately alleviating Mn dissolution. The incorporation of Si 4+ and Al 3+ in LiMn 2 O 4 promotes the formation of a single-crystal truncated octahedral structure, with preferential grain growth along the {111}, {100} and {110} crystal plane, which decreases Mn dissolution and enhances the Li + transfer pathways. Furthermore, the integration of Si 4+ /Al 3+ co-doping producing smaller particles can shorten the migration paths of electrons and ions. Consequently, the optimized LiSi 0.05 Al 0.09 Mn 1.86 O 4 displays a decent initial discharge specific capacity of 103.2 mAh·g −1 and an excellent capacity storage percentage of 79.7 % after 1000 cycles at 10 C. Meanwhile, the optimal sample also exhibits respectable first discharge capacities of 91.9 mAh·g −1 and 61.8 mAh·g −1 at ultra-high rates of 20 C and 40 C, along with superior capacity storage ratios of 70.9 % and 70.7 % after 1000 cycles. More importantly, the optimized sample shows remarkable first discharge specific capacity of 107.1 mAh·g −1 at 55 °C and 10 C and exciting capacity storage rate of 61.9 % after 500 cycles. This study serves as a guide for advancing high-performance, high-stability LiMn 2 O 4 cathode materials for use in lithium-ion batteries.
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CORROSION SCIENCE
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2024
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IF 7.4
Zebang He,Zhong Wu,Zhiming Gao,Zhenbo Qin,Juntao Yuan,Yuan Gao,Yaorong Feng,Anqing Fu,Chun Wang,Wenbin Hu
A Ni-Al-Cu coating was prepared on NAB alloy through electroplating and heat treatment, and the erosion-corrosion behaviors were investigated. The results demonstrated that Ni-Al-Cu coating exhibited higher erosion resistance compared to NAB alloy, with an average reduction of 63 % in material removal rate (MRR). It was revealed that deformation and cracks were observed in NAB, with loss of hard κ and β phases alongside deformation of ductile α phase. Meanwhile, Ni-Al-Cu coating experienced fatigue delamination and grain disintegration due to alternating stress. Taguchi design method showed that increasing flow velocity and sand concentration could enhance the intensity of gravel impact, while changes in the erosion angle affected gravel impact modes and energy transfer, thereby impacting corrosion performance. Additionally, empirical equations for the material removal rate were derived through regression analysis, which became possible to predict the MRR under different influencing factors and assess the erosion-corrosion resistance of materials.
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ACS Applied Nano Materials
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2021
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IF 5.097
Muhammad Amin Padhiar,Minqiang Wang,Yongqiang Ji,Zhi Yang,Yun Zhou,Hengwei Qiu,Hao Wang,Azaz Ali Shah,Arshad Saleem Bhatti
Perovskite nanocrystals (PNCs) are ideal for optical devices due to their adjustable emission band and high photoluminescence. However, blue light-emitting perovskite nanocrystals (PNCs) exhibit poor performance compared to their green and red-emitting PNC counterparts. Herein, we introduce a simple strategy for increasing the stability of blue light-emitting CsPb (Br/Cl)3 PNCs passivated with an Al-doped CdSe layer. This simple strategy successfully achieves highly stable PNCs with photoluminescence (PL) emission ranging from 454 to 460 nm with a full width at half-maximum (FWHM) ranging from 18 to 22 nm; changes in bandgaps are also observed, and the corresponding PLQY values show a significant change after CdSe/Al modification. In addition, CsPb (Br/Cl)3 PNCs with a CdSe layer doped with Al formed on the surface show remarkable stability under ambient conditions, including thermal exposure, water resistance, and ultraviolet (UV) irradiation. A light-emitting diode (LED) device was constructed to demonstrate the feasibility of the approach by combining the optimal CsPb(Br/Cl)3/CdSe/Al PNCs with an existing commercial 365 nm UV chip, resulting in bright blue light emission with CIE color coordinates of (0.16, 0.09). All of the findings suggest that doped CsPb (Br/Cl)3/CdSe/Al PNCs have the potential to be used as color converters in liquid crystal displays (LCDs).
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