JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Xiaofei Lv,Huaiyou Wang,Zenghu Zhu,Zhengjun Peng,Jianwei Li
Microemulsion-enabled interfacial design with graphene oxide incorporation and polycarboxylate intercalation. • Sulfate-tolerant design enables lithium recovery from natural sulfate-rich salt-lake brines. • Integrated experiments and DFT/MDsimulations reveal cooperative Li + selectivity. • Column operation demonstrates stable, environmentally benign brine treatment. Adsorption-based lithium extraction provides a convenient, efficient, and environmentally friendly route for recovering lithium from liquid resources. Among existing materials, aluminum-based adsorbents are the only systems that have achieved industrial-scale deployment; however, they still suffer from insufficient lithium uptake and structural deactivation during long-term dynamic cycles in sulfate-type salt-lake brines. To address these limitations, a dual-modified lithium–aluminum layered double hydroxide (PGLH) was synthesized via microemulsion-assisted coprecipitation.Structural characterization and computational analyses reveal that the intercalation of polycarboxylates within the interlayer galleries, coupled with graphene oxide (GO) surface modification, synergistically reinforces the layered framework and enhances Li + selectivity. In gradient-concentration real sulfate-type brines, PGLH delivers a lithium adsorption capacity of 17.8 mg·g −1 . Sulfate resistance experiments and molecular dynamics simulations demonstrated a 260% increase in lithium uptake compared to unmodified adsorbents, along with 96.1% capacity retention after fifty cycles, which is attributed to steric hindrance and electrostatic repulsion that effectively suppress sulfate intercalation. Continuous-flow column tests further verified the material's durability, achieving more than tenfold Li + enrichment and reducing the Mg/Li ratio from 2938:1 to 10:1. These findings provide mechanistic insights and design guidelines for developing robust, selective Al-based lithium adsorbents suitable for sulfate-rich brines. A polycarboxylate and graphene oxide co-modified layered alumina adsorbent (PGLH) was synthesized via a microemulsion-assisted method. Interlayer engineering and surface modification synergistically enhanced Li + selectivity in authentic sulfate-rich brines. Structural characterization, adsorption tests, and DFT/MD simulations demonstrate that interfacial modification stabilizes the layered structure and tunes competitive anion sorption, providing mechanistic insight into selective lithium recovery from complex multi-ion environments. Download: Download high-res image (183KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yanyan Wu,Mingrun Song,Yingnan Dou,Wenjing Du,Hongru Hao,Yan Wang,Ying Li,Bo Wei
Although the availability of many nickel-based sulfides oxygen evolution reaction (OER) electrocatalysts with excellent intrinsic activity, very few of them perform well in anion exchange membrane water electrolysis (AEMWE). Their poor stability remains the core challenge in large-scale alkaline water electrolysis. In this work, the use of amorphous FeOOH nanoparticles is proposed as a modifier of Al doped Ni 3 S 2 (FeOOH/NiAlS) to develop robust OER electrode suitable for AEMWE. Under operation conditions, FeOOH protect the bulk sulfides from further corrosion, in turn effectively improves the catalyst utilization due to highly conductive property. Meanwhile, surface reconstructed Al-NiFeOOH serves as the actual active phase, monitored by in situ Raman and EIS. Density functional theory (DFT) reveals that Fe doping optimize their adsorption property, elongates the Ni O bond, and act as a new active site to augment OER activity. Specifically, the reconstructed FeOOH/NiAlS shows an ultra-low overpotential of 316 mV at 1 A cm −2 and high stability at 0.5 A cm −2 over 400 h. The corresponding AEMWE requires a cell voltage of only 1.72 V to reach 1 A cm −2 , while maintaining stable operation for 1400 h at 0.5 A cm −2 , providing a promising prospect for practical applications. Download: Download high-res image (103KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Jinpeng Zhang,Yanxin Jia,Jieying Jing,Wen-Ying Li
Cu-based water–gas shift catalysts suffer severe sintering due to Cu oxidation state changes and particle aggregation. To address this challenge, Al-doped Fe 3 O 4 spinel supports were constructed. The optimized Cu/Fe 3 O 4 -A 3 catalyst with an Al/Fe molar ratio of 3:3 achieved near-theoretical CO conversion (98.24% vs. the thermodynamic equilibrium of 98.50%) and maintained >97% conversion over 100 h. HAADF-TEM and in-situ XRD analysis revealed that CuFeAlO 4 spinel cages suppress Cu migration (Δd 311 < 0.02 Å at 300 °C), while the formation of Cu–O–Al covalent bonding strengthens metal-support interaction and inhibits Ostwald ripening. Combined DFT and ab initio molecular dynamics simulations further demonstrate that Cu–O–Al covalent bonding enhances the anchoring of Cu species, and increases the migration energy barrier to 1.37 eV—approximately 1.5 times higher than that of conventional Cu/Fe 3 O 4 . This work establishes a paradigm for sintering-resistant catalyst design via spinel-interface engineering.
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COMPOSITES PART B-ENGINEERING
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2026
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IF 14
Yuqi Feng,Yu Li,Raymond H.W. Lam,Cheuk Lun Chow,Denvid Lau
Wood fibers offer promising sustainable alternatives to synthetic options; however, their susceptibility to mold limits their widespread adoption. Here we report a facile strategy to fabricate anti-mold wood fibers via in-situ growth of Zn-Al layered double hydroxides (LDHs) followed by stearic acid (STA) post-coating. Electrostatic interactions drive the adhesion of LDH to wood, while STA provides surface hydrophobicity, as revealed by molecular dynamics simulations. The resulting wood fibers exhibit remarkable anti-mold activity against common fungal species, including Aspergillus , Trichoderma , and Penicillium , showing clear inhibition zones and no fungal growth in accelerated tests. Further analyses reveal that the direct antifungal effect arises from electrostatic absorption, oxidative stress induction, and metal ions release, while the indirect effect is due to hydrophobicity. Our findings demonstrate a scalable and cost-effective approach for functionalizing natural fibers to combat microorganisms, broadening the application scope of cellulose-based materials in construction, packaging, and biocomposites. We anticipate this work to be a starting point for developing wood fiber composites with intrinsic mold resistance for health- and eco-conscious applications.
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COMBUSTION AND FLAME
·
2026
·
IF 5.9
Jiyu Lu,Wenhao Wang,Jiaming Liu,Xiandie Zhang,Xiang Zhou
Pure n-BiF 3 is facilely prepared and uniformly loaded around μ-Al. • The n-BiF 3 serves dual functions: etching Al 2 O 3 shell and engaging in thermite reaction. • The n-BiF 3 significantly enhances the thermal oxidation, electric ignition, and combustion characteristics of μ-Al. • The effects of n-BiF 3 as an additive is positively dosage-dependent (1 wt% ∼ 5 wt%). Micron-sized Al (μ-Al) features high energy density and low cost, yet its surface alumina (Al 2 O 3 ) passivation film drastically limits energy release. In this study, pure nano-BiF 3 (n-BiF 3 ) was prepared by a mild chemical precipitation method. Al-BiF 3 composite particles with different n-BiF 3 loading were prepared by ultrasonic dispersion and vacuum filtration, and further composited with CuO and NH 4 ClO 4 (AP) to construct energetic composites, so as to investigate their modification effect on μ-Al. Structural characterization indicates that n-BiF 3 can be uniformly loaded around the surface of μ-Al without obvious segregation. Thermal analysis shows that n-BiF 3 releases fluorine-containing substances at high temperatures to etch the Al 2 O 3 shell. Adding n-BiF 3 at mass fractions of 1 wt%, 3 wt% and 5 wt% significantly improves thermal oxidation activity and oxidation weight gain rate by 46.5% ∼ 127.0% relative to untreated Al. Ignition and combustion tests demonstrate that n-BiF 3 effectively shortens ignition delay by 9.2% ∼ 12.8% for Al/CuO systems and by 24.6% ∼ 33.7% for Al/AP systems, shortens combustion time, raises the pressurization rate by 110.0% ∼ 490.0% for Al/CuO systems and 66.7% ∼ 416.7% for Al/AP systems, elevates system peak pressure and combustion temperature, and suppresses particle agglomeration. The above results reveal that n-BiF 3 has dual functions of etching the oxide layer and engaging in the thermite reaction, and the effect is enhanced with the increasing addition amount. This study provides a new strategy and experimental basis for the efficient modification of μ-Al. Download: Download high-res image (525KB) Download: Download full-size image
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DESALINATION
·
2026
·
IF 9.9
Chenghao Qiu,Yujiao Cao,Haiping Su,Jun Chen,Jianguo Yu,Sen Lin
Hollow Li/Al-LDHs were rationally designed to overcome diffusion limitations of granular adsorbents. • Hydrophilic binder and spinning-parameter regulation optimized hollow Li/Al-LDHs. • Finite element analysis revealed the mass-transfer enhancement of hollow structures. • Optimized hollow Li/Al-LDHs showed fast Li + kinetics and efficient dynamic cycling. Adsorption has become a central approach for industrial salt lake lithium extraction. A structural engineering strategy is developed to rationally fabricate hollow fiber-structured Li/Al layered double hydroxide granules (HF-LDHs) with enhanced mass transfer to overcome the extraction efficiency limitation from conventional granulation methods. The hollow architecture provides shortened diffusion pathways through a favorable pore microstructure and dual accessible surfaces for Li + directional migration with markedly accelerating intraparticle transport. HF-LDHs are characterized by good hydrophilicity and structural integrity with a compressive of 4.99 MPa, and the optimized granules can reach adsorption equilibrium within 60 min, which is shortened by over half to that of these traditional lithium adsorbent granules. Fixed-bed dynamic evaluation further demonstrates a rapid 2 h saturation and high effluent quality with a Mg 2+ /Li + ratio below 2. Moreover, HF-LDHs maintain a stable working capacity of about 7.20 mg/g over 20 cycles, with a high Li + extraction rate of 2.70 (mg/(g·h)), highlighting their potential for low-grade lithium recovery. Download: Download high-res image (240KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Shifan Lu,Qiang Fan,Yingli Liu
For self‑biased circulators, oriented Ba 1-x La x Fe 12-x Al x O 19 (x = 0.1–0.5) hexaferrites were fabricated by solid‑state reaction. Partial substitution of Ba 2+ by La 3+ and Fe 3+ by Al 3+ progressively contracts the lattice, increases grain size, and induces local lattice distortion, evidenced by Raman peak shifts and broadening. Magnetic properties evolve in two distinct trends: remanence and coercivity decrease monotonically; saturation magnetization M s , anisotropy constant K 1 , and anisotropy field H a increase to a peak at x = 0.4 ( M s = 78.91 emu/g, H a = 12.94 kOe) and then decline. The non‑monotonic M s arises from competition between magnetic dilution by Al 3+ and La 3+ ‑induced lattice contraction that enhances superexchange interactions. The M r / M s decrease is dominated by the weakening of exchange coupling due to non-magnetic Al 3+ substitution, with additional contributions from grain growth-induced multi-domain formation. The enhanced H a originates from lattice contraction strengthening spin‑orbit coupling at the 2b site, with the decline at x > 0.4 correlated with Raman‑detected local disorder accumulation. Through a finely-resolved composition gradient (∆x = 0.1), this study decouples the competing mechanisms and identifies the optimal composition at x = 0.40, underscoring the value of fine compositional tuning for precise property optimization. This work provides a systematic understanding of the competing mechanisms that determine the magnetic performance, offering guidance for composition design of oriented hexaferrites for self‑biased circulator applications.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2026
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IF 6.7
Feng Wang,Chuncai Zhou,Chen Li,Bentao Li,Tingwen Wang,Guijian Liu
Coal fly ash (CFA), a typical industrial solid waste rich in Si and Al with associated critical elements (Ga, Ge, REEs), poses environmental risks while having high resource utilization potential. Its valuable elements are hosted in aluminosilicate glass, hindering their recovery. Na 2 CO 3 roasting releases Na 2 O with strong lattice-disrupting capability, leading to the depolymerization of aluminosilicate lattices. In this study, experimental characterization and HSC Chemistry thermodynamic calculations were combined. The experimental and thermodynamic results were used to elucidate the evolution of the aluminosilicate lattice and the reconstruction of mineral phases. The reaction was substantially promoted at a Na 2 CO 3 /CFA mass mixing ratio of 1, and residual mullite, quartz and Na 2 CO 3 were no longer detected when the temperature increased to 850℃. The main reaction occurred at 600–900℃ and proceeded in three stages. (1) Reaction initiation stage (≤ 600℃): Some crystal defects and short-range ordered sodium aluminosilicate structures formed, while the overall lattice was not completely destroyed. (2) Structural reorganization stage (700–800℃): Inert aluminosilicate crystalline phases progressively disappeared, while nepheline-type sodium aluminosilicates and sodium silicate formed, with reaction intermediates coexisting with newly formed phases. (3) Recrystallization and stabilization stage (850–900℃): The roasting reaction was nearly complete, and the crystalline fraction of the roasted products consisted mainly of nepheline-type sodium aluminosilicates and sodium silicate, while a substantial amorphous component remained. The glassy phase and quartz contained in CFA could account for the lower temperature required for Na 2 CO 3 roasting compared with that required for pure minerals. This work provides theoretical support for CFA resource utilization.
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Crystals
·
2025
·Vol. 15
·期 6
·563
·
IF 2.4
Jinyi Wang,Bowen Fan,Jincheng Yu,Mengqiong Huang,Jiana Song,Zhaokun Yang,Yuan Ji
Single-phase ternary Mn-Cu-Al alloy ribbons were fabricated by melt-spinning a Mn48Cu28Al24ingot on a rotating copper roller. They were used as dealloying precursor for forming the nanoporous structure in HCl solution. The basic dealloying behavior was examined by controlling the dealloying time from 5 min to 180 min at 50 °C. Due to the active chemical property, Mn and Al elements are easily etched in acid solutions. Meanwhile, Cu elements retained and rearranged. A three-dimensional bicontinous nanoporous structure was fabricated, with a ligament size of 55 nm~100 nm and pore size of 35 nm~85 nm. The porosity evolution of dealloyed MnCuAl alloy was divided into three stages. First, the dissolution of Mn and Al is so significant that formation of pores is dominant. Stage two, the rapid growth of both ligament size and pore size. The ligament/pore ratio is nearly unchanged. The last stage is ligament coarsening. Moreover, the electrocatalytic activity for glucose oxidation of dealloyed samples is examined. The 40 min dealloyed MnCuAl ribbon exhibited the highest sensitivity and relatively maximum current density.
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CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Bihong Li,Yijie Ding,Weizhong Zheng,Weizhen Sun,Ling Zhao
Zeolites have emerged as the highly potential solid catalysts in isobutane (C4) alkylation due to their adjustable acidity and structural properties. The introduction of rare earth metal or transition metal can effectively regulate the acidic site distribution and strength of beta zeolite. The structural stability, acid properties and catalytic performance of low Si/Al ratio beta zeolites functionalized with various lanthanum and copper loadings are systematically investigated for the C4 alkylation through experimental characterization and catalytic evaluation. It is revealed that the optimal metal loading can impart superior acidic properties to beta zeolites. Lanthanum modification increases the total amount of Brønsted acid sites (BAS), and enhances the population of moderate and strong BAS compared to copper modification. Catalytic evaluation demonstrated that copper-modified beta zeolites achieve a higher research octane number (RON) up to 93 for alkylate, but exhibit a shorter catalyst lifetime. Lanthanide-modified counterparts exhibit a catalytic lifetime of 320 min and 65 wt% trimethylpentane (TMPs) selectivity with relatively stable RON of 90 during a prolonged stable operation, and meanwhile, the optimal lanthanide-modified HB-1 zeolites (0.35 wt% La@HB-1) demonstrate high level of catalytic lifetime and TMPs selectivity after three cycle experiment. The information obtained from this work will contribute to a better understanding of the metal-modified low-Si/Al-ratio beta zeolites for catalyzing the C4 alkylation.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Chenghao Zhao,Wei Wei,Zhiyi Li,Zhijun Liu
Composite solid electrolytes (CSEs) are promising alternatives to liquid electrolytes in lithium-ion batteries (LIBs). CSEs offer superior electrochemical stability, safety, and mechanical integrity. Herein, a flexible CSE film comprising aluminium-doped Li 6.28 La 3 Zr 2 Al 0.24 O 12 (LLZO – Al) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF – HFP) is successfully fabricated via an optimised sol-gel synthesis and solution casting method. The LLZO – Al filler, with high cubic-phase purity, effectively reduces the crystallinity of the PVDF – HFP matrix, creating continuous Li + transport pathways. The optimised composite membrane containing 15 wt% LLZO – Al (CE15%) exhibits a high room-temperature ionic conductivity of 6.1 × 10 –4 S cm –1 and a broad electrochemical stability window up to 4.8 V vs. Li/Li + . Additionally, it demonstrates excellent mechanical flexibility (elongation at break: 162%) and enhanced thermal resistance. The Li/CE15%/Li symmetric cell maintains stable cycling for over 2000 h at 0.1 mA cm –2 , confirming outstanding interfacial stability. Furthermore, the LFP/CE15%/Li full cell delivers an initial discharge capacity of 166.1 mAh g –1 at 0.1 C and retains 86% of its capacity after 300 cycles. These results highlight the great potential of LLZO–Al/PVDF–HFP/LiTFSI composite electrolytes for high-performance solid-state Li-ion batteries.
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ACS Catalysis
·
2025
·
IF 13.1
Yousheng Zhou,Chuanlei Liu,Peicheng Li,Yifan Wang,Qiyue Zhao,Hao Jiang,Qiumin Wu,Benxian Shen,Hui Sun,Xuejiao Han
Olefin oligomerization plays a pivotal role in producing value-added chemicals and functional materials, driving the development of the chemical industry. Acid catalysts are widely utilized in olefin oligomerization, yet precisely controlling acidity remains a significant challenge due to the considerable difficulties in regulating the complex coordination of the active components with the supports. In this study, a series of Al-modified dendritic fibrous nanosilica catalysts (Al-DFNS) were synthesized and applied in the oligomerization of 1-decene to polyalphaolefins (PAOs). Multiple characterizations elucidate that the hydrogen-replaced Al-DFNS (H-Al-DFNS) featured a unique three-dimensional center-radial channel with hierarchical pores, while pulsed-field gradient nuclear magnetic resonance (PFG-NMR) further indicates that the high density of accessible acidic sites and diffusion-limited pore properties lead to much higher catalytic efficiency than diverse siliceous catalysts. Acid distribution measurement and product analysis together reveal that H-Al-DFNS has a well-balanced ratio of Brønsted acid sites (BAS) to Lewis acid sites (LAS). Specifically, high acid strength enhances hydrogen transfer and contributes to high selectivity of trimer and reduced dimer production. Density functional theory (DFT) calculation highlights the crucial role of the stability of carbocation intermediates on acid sites in the oligomerization reaction. The present work provides a reliable strategy for accurately regulated acidity for tunable oligomerization product distribution and initiates the applications of a kind of promising catalytic material in olefin oligomerization.
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