COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Zhongwei Hu,Yi Wu,Haotian Zhou,Zhanjun Yang,Dan Zhang,Qiaofeng Han,Lifeng Xie,Fahad Ali
Defect−rich Al powder was prepared via eco−friendly glycolic acid etching. • Combustion mechanism shifted from melt-dispersion to defect-mediated diffusion. • Apparent activation energy of Al/CuO system was reduced by 25.2%. • Enhanced interfacial affinity boosted combustion dynamics with shorter ignition delay and higher peak pressure. To overcome the inherent limitations of micron-sized aluminum (μm-Al) in energetic applications, that is, prolonged ignition delay and incomplete combustion, this study proposes an eco-friendly surface engineering strategy via controlled glycolic acid etching. The deliberate acidification of 10 μm-Al yields a sub-micron pit architecture that simultaneously enhances the reactive surface area and active Al content. When integrated into Al/n-CuO thermites, the optimized etched Al (8-hour etching) demonstrated superior reactivity. Kinetic analysis revealed a 25.25% reduction in activation energy (from 479.08 kJ·mol −1 to 358.12 kJ·mol −1 ) compared to the raw Al system. More importantly, constant-volume combustion tests showed that the etched Al thermite exhibited a peak pressure of 342.02 kPa and a violent pressurization rate of 5.86 MPa·s −1 , which are 1.4 and 3.2 times those of the raw Al counterpart, respectively. These enhancements, coupled with a 53.67% increase in combustion temperature and a 27.8% reduction in ignition delay, are attributed to the alleviated interfacial mass transfer barriers provided by the pit structure. This strategy offers an eco-friendly pathway to tailor the combustion kinetics of metallic fuels for advanced energetic composites. Download: Download high-res image (228KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2026
·
IF 14
Haizhu Li,Fuyang Sun,Dinghua Hu,Changrui Wang,Qiang Li,Xuemei Chen
The heat dissipation bottleneck induced by the high-power density of electronic devices is a core challenge that limits their operational stability and long-term reliability. Herein, diamond-Cu and diamond-Al composites (DCC and DAC) were systematically investigated with respect to material preparation, performance characterization, and reliability under extreme environments. X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy analyses indicate the presence of W-derived carbide-containing interfacial regions and close contact between the diamond particles and the Cu and Al matrices. Among the investigated particle-size distributions and diamond volume fractions, maximum thermal conductivities of 793.9 and 775.8 W m −1 K −1 were obtained for the DCC and DAC, respectively, while the DCC exhibited a maximum flexural strength of 405 MPa. The DCC underwent interfacial electrochemical corrosion in an acidic salt spray environment with a pH of 3.5, resulting in a maximum degradation of thermal conductivity of 26.8%. A gold-nickel protective coating with a thickness of at least 3 μm effectively suppressed micro-galvanic corrosion and significantly enhanced the corrosion resistance of both DCC and DAC. Furthermore, the composites exhibited excellent structural and thermal stability under high/low temperature, damp heat, and vibration conditions. Infrared thermal imaging tests verified their excellent heat dissipation performance. At 16.7 W cm −2 , the DCC and DAC reduced the heat-source temperature by 88.1 and 66.9 K, respectively, relative to 70Si/Al, with thermal stabilization reached within approximately 300 s. The developed composites demonstrated stable thermal performance under the prescribed laboratory environmental and mechanical loading conditions, indicating their potential for high-reliability electronic thermal-management applications.
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 16
·1015
·
IF 4.8
Xin Lin,Jiayi Tu,Jinyun Zhao,Fangfang Wu,Xingping Fu,Hao Lin,Jiapeng Hu
In this study, a hierarchical rod-assembled, polypyrrole-modified Ce–Al–La trimetallic metal–organic framework (Ce–Al–La–MOFs@PPy) composite was successfully synthesized through a solvothermal method combined with in situ polymerization for efficient fluoride removal from aqueous solutions. The incorporation of conductive polypyrrole (PPy) into the multimetallic MOFs effectively enhanced the structural stability, surface properties, and adsorption performance of the material. Adsorption experiments demonstrated that the optimal metal-to-ligand molar ratio was 3:1, and the prepared adsorbent exhibited excellent fluoride removal performance under weakly acidic conditions (pH = 5). The maximum adsorption capacity calculated from the Langmuir model reached 216.92 mg·g−1at 45 °C. Adsorption kinetics were well fitted by the pseudo-second-order model, indicating that the adsorption process was mainly governed by chemisorption. Mechanism investigations based on FTIR and XPS analyses demonstrated that fluoride removal mainly occurred through electrostatic attraction and coordination exchange between fluoride ions and the Ce/La active sites. In addition, the composite exhibited good selectivity, anti-interference ability toward coexisting ions, and satisfactory fluoride removal performance in practical industrial wastewater. These findings suggest that Ce–Al–La–MOFs@PPy is a promising adsorbent for efficient fluoride-contaminated wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Yifan Yue,Baohe Wang,Aiping Wang,Fuying Zhao,Jing Zhu,Jing Ma
The catalytic efficiency for methyl methacrylate (MMA) production via aldol condensation of methyl propionate (MP) and formaldehyde (FA) depends on the acid–base and structural properties of the catalyst. Inspired by this, a synergistic design strategy is implemented by fabricating Cs/Al-MCM-41 catalysts, where Al doping preserves ordered mesopores and tunes acid–base properties. This approach generates an optimal density of medium acid sites together with a balanced distribution of weak-to-medium base sites, leading to 90% MMA selectivity and a space-time yield of 0.29 g/(gcat·h). Moreover, the mesoporous confinement not only enhances the dispersion of Cs active species but also suppresses the condensation of coke precursors, thereby significantly improving the catalyst stability. Density functional theory (DFT) calculations reveal that basic Cs–O–Si sites and acidic Al sites cooperatively activate MP and FA, promoting aldol condensation. This work demonstrates that the integration of targeted acid–base regulation with structural confinement provides a rational catalyst design principle for efficient aldol condensation.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Jinsuo Ma,Qian Ma,Qi Wang,Yu Li,Wenxin Ji,Yulong Ma,Yonggang Sun,Yuanyuan Li
To address the critical limitations of natural bentonite, including restricted specific surface area and low cation exchange capacity (CEC) caused by interlayer impurities, this study proposes an in situ structural reconstruction strategy via simultaneous alkaline activation and aluminum doping. This approach directly transforms bentonite frameworks into a hierarchically porous SOD-type sodalite with an ultralow Si/Al ratio. The engineered material integrates three synergistic advantages: abundant surface hydroxyl groups, maximized CEC (saturation capacity, 242.56 mg/g), and a dual-scale pore architecture (micropores/mesopores). Combined experimental and computational analyses reveal the underlying mechanisms: The ultralow Si/Al ratio generates Al–O–Si bridging sites, strengthening electrostatic interactions with Pb2+ (adsorption energy: −1.356 eV) and reducing the migration energy barrier. Local charge redistribution at Al-rich domains optimizes Pb2+ occupation, achieving a stable Pb–O bond length of 2.35 Å. Hierarchical porosity facilitates rapid mass transfer, enabling 93% adsorption capacity retention after eight regeneration cycles. This work establishes a quantitative structure–performance relationship among Si/Al ratio, charge distribution, and adsorption efficiency through bentonite interlayer reconstruction. It provides fundamental insights for designing high-performance, low-cost heavy metal adsorbents, demonstrating a 2.7-fold increase in Pb2+ uptake compared to conventional bentonite, developing high-performance, low-cost heavy metal adsorbents.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Juan Li,Wanli Nie,Sergey Ryazantsev,Liping Zhang,Yanan Zhu,Shaohua Guo,Sichen Gu,Chuan Wu
Rechargeable aluminum batteries suffer from dendritic anode growth and capacity decay due to severe concentration polarization caused by sluggish ion transport kinetics, particularly under high-capacity conditions. To address this issue, we developed an amorphous covalent organic framework (COF) coating layer engineered for anion-concentrating functionality. The conformational flexible imine linkages in the amorphous COF enable adaptive trapping of Al 2 Cl 7 − , storing them as crystalline AlCl 3 and ligand-bonded AlCl 4 − within the mesopores. This mechanism enriches electrochemical active species to buffer the concentration polarization, and promotes the formation of highly active Al 3 Cl 10 − species at the surface, thereby accelerating interfacial kinetics to guide homogeneous deposition. As a result, dendrite-free aluminum deposition is achieved even at an ultrahigh areal capacity of 10 mAh cm −2 under the protection of the COF. The half-cell with the COF exhibits an exceptional cycling time of over 6000 h with a coulombic efficiency of 99.9%, while symmetric cells demonstrate long-term stability over 7500 h with a low overpotential of 36 mV. Full cells with the graphite cathode also maintain stability over 5000 cycles under a large current density of 1.2 A g −1 . This work presents an effective coating strategy for regulating electrodeposition in metal anode batteries, highlighting a promising path toward practical applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 12
·118358
·
IF 6.3
Qiu Zhang,Liying Pan,Xueyue Lyu,Chenyang Zhang,Xinrui Wang,Jiawei Qi,Guangdong Zhao
The hierarchical porous architecture of sugarcane peel was successfully replicated using a biological template method. The samples were fabricated via a sol-gel process combined with ambient pressure drying, and the Si-Zr-Al-Y system integrated with the biomass template was pyrolyzed at temperatures ranging from 700 °C to 1300 °C to obtain Si-Zr-Al-Y oxide ceramic composites. The evolution of the microstructure and phase composition of the Si-Zr-Al-Y system during pyrolysis was systematically investigated. The incorporation of biomass templates facilitated the retention of a relatively fine mesoporous structure (6.88 nm) and low thermal conductivity (0.035 W·m⁻¹·K⁻¹) up to 1100 °C, although pore coarsening and specific surface area reduction became evident at higher temperatures (1300 °C). Furthermore, the influence of processing temperature on specific surface area, pore size, and pore structure was examined in detail. This study not only establishes a foundation for future research but also provides insights into sustainable industrial waste management and contributes to global sustainable development strategies.
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Xue Yang,Donghui Cui,Yu Liu,Yuexin Xiang,Fengyan Li,Guangshan Zhu
Al/Bi-O acid-base pairs were built by spatially selective Al doping in BiOBr/Bi 2 O 3 heterojunction. • The NH 3 yield reached 801.3 μmol g −1 h −1 in pure water, exceeding transition metal doped systems. • Al 3+ polarization activates lattice oxygen as primary Lewis base sites. • In situ KPFM visualizes S scheme charge transfer and the amplified built in field from Al doping. • Oxygen vacancies supply π backdonation channels and enrich electron density of nearby lattice oxygen. Photocatalytic nitrogen fixation has long been constrained by the intrinsic inertness of the N N bond and the severe recombination of photoexcited electron-hole pairs. Here, we construct an aluminum-doped BiOBr/Bi 2 O 3 S-scheme heterojunction in which Al 3 + selectively replaces Bi 3+ sites in the BiOBr lattice, while the Bi 2 O 3 phase retains its inherent crystal structure almost entirely. This asymmetric doping configuration strengthens the internal electric field across the S-scheme interface. The strong polarizing ability of Al 3+ activates nearby lattice oxygen atoms into Lewis base sites and induces the formation of additional oxygen vacancies (Ov), while simultaneously extracting electron density from adjacent Bi centers via Al-O-Bi bridge bonds, thereby enhancing the Lewis acidity of Bi. The resulting Al/Bi-O Lewis acid-base pair activates N 2 through a synergistic push-pull mechanism, in conjunction with the charge modulation induced by the oxygen vacancies. In pure water and in the absence of any sacrificial agent, the optimally designed photocatalyst achieves an NH 3 production rate as high as 801.3 μmol g −1 h −1 under simulated sunlight, surpassing transition-metal-doped analogues. This work establishes a lattice-confined Lewis acid-base pair paradigm, opening a new avenue for designing high-efficiency nitrogen-fixing photocatalysts. Download: Download high-res image (276KB) Download: Download full-size image In pure water and in the absence of any sacrificial agent, the optimally designed photocatalyst Al-BiOBr/Bi 2 O 3 achieves an NH 3 production rate as high as 801.3 μmol g −1 h −1 under simulated sunlight, surpassing transition-metal-doped analogues.
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Eryu Zhu,Wei Yu,Ruiyuan Wang,Chong Liu,Wei Gao,Dean Xiao,Jingsi Gao,Bing Li
Al-doping induced lattice distortion and structural defects in the TiO 2 shell. • Fe 3 O 4 imparts magnetic recoverability to the TiO 2 -Al photocatalyst. • 77.8% phosphorus mineralization of TnBP was achieved under UV irradiation. • DFT calculations reveal the engineered electronic structure boosts radical kinetics. • Photocatalytic treatment progressively reduced the biological inhibitory effect. Tributyl phosphate, a representative organophosphorus ester, is environmentally persistent due to its refractory nature, leading to widespread concern over its residue. Photocatalysis employing titanium dioxide (TiO 2 ) is a commonly studied method for degrading such pollutants, yet conventional TiO 2 systems are hindered by the high cost of requisite precious-metal cocatalysts, difficulties in recovering ultrafine catalyst powders, and rapid electron-hole recombination. To address these limitations, a TiO 2 -Al@Fe 3 O 4 photocatalyst was synthesized in this work via a sol-gel method, in which Al 3+ was doped into the TiO 2 lattice. This Al 3+ incorporation induced lattice distortion and created structural defects. The substitution of Ti 4+ by Al 3+ introduces charge imbalances and localized strain, which are key to forming active defect sites that subsequently modify the electronic structure. The modified catalyst exhibits a narrowed bandgap and an engineered surface structure that collectively further promote the generation of reactive oxygen species. Consequently, the TiO 2 -Al@Fe 3 O 4 /UV process achieved 77.8% phosphorus mineralization of tributyl phosphate within 10 h using a low photocatalyst dosage of 0.3 g/L. Furthermore, toxicity analysis indicated that most of the transformed products have lower predicted toxicity than the original parent compound. These results demonstrate that the TiO 2 -Al@Fe 3 O 4 composite functions as a magnetically recoverable and active photocatalyst, providing an effective strategy for the phosphorus mineralization of recalcitrant organophosphorus compounds. Download: Download high-res image (270KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Falin Ou,Yuyuan Zhang,Bo Liu,Huiqiang Ma,Li Li
Citrus leaf extract achieves 93.03% hydrogen evolution inhibition efficiency. • Significantly reduces hydrogen explosion risk from environmental fluctuations. • Phenol and (R)-3-pyrrolidinol are the active molecules of Citrus leaf extract. • Active molecules adsorb nearly parallel on Al (1,1,1). • O/N lone pairs donate to Al empty orbitals, forming coordination bonds. This study uses Citrus leaf extract (CLE), to validate inhibitor stability by simulating the internal environment of a wet scrubber, providing an intrinsically safe technology for industrial sites. Hydrogen inhibition experiments showed that the optimal CLE concentration for suppressing hydrogen generation was 4 × 10 −2 wt%, with an inhibition efficiency (η) of 93.03%. Under various environmental interferences, CLE at this concentration maintained stable inhibition performance. Characterization experiments indicated that CLE spontaneously adsorbs onto aluminum alloy dust surfaces, forming protective adsorption layers that prevent hydrolysis and hydrogen generation. DFT calculations revealed that the active molecules donated lone-pair electrons from O and N atoms in polar functional groups to the empty orbitals of Al to form coordination bonds, complementing the hydrogen inhibition mechanism. This study demonstrates that CLE, as a green and economical plant-based inhibitor, can ensure safe operation of wet scrubbers in industrial settings. Download: Download high-res image (398KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Da Li,Xin Ai,Ting Sun,Jingrong Li,Yanan Bai,Bin Ma,Jing Ren,Enze Li,Zihe Pan
LDH was in-situ embedded at the sponge skeleton surface. • Embedding LDH at a proper content resulted in smaller pore size, larger porosity, narrow pore size distribution. • The adsorption capacity of LDH epoxy sponge is as large as 8.10 mg/g. • After 15 times cycle adsorption, Li removal rate maintained as 47.87%. • The LDH embedded epoxy sponge showed excellent mechanical robustness and elasticity. Lithium-aluminum layered double hydroxide (Li-Al LDH) powders are still severely restricted in practical Li adsorption due to the unsatisfactory adsorption capacity, severe active component loss and inferior long-term cycling stability. Herein, we propose a novel Li-Al LDH-epoxy lithium adsorption sponge, which is fabricated via an in-situ embedding strategy, where active LDH components are uniformly anchored onto the skeleton surface of the sponge during the pore-forming process. The as-constructed LDH coating on the sponge skeleton presents an ultrathin filmy morphology with a thickness of only several micrometers, which not only well preserves the intrinsic elasticity of the pristine sponge matrix, but also significantly reinforces its mechanical strength. Meanwhile, the resultant hierarchical porous architecture further contributes to the prominent improvement of lithium adsorption performance. The optimized LDH sponge delivers a large specific surface area of 413.26 m 2 /g, a well-defined hierarchical pore system with dual pore sizes of 150 μm and 13.13 nm, and a high lithium adsorption capacity of 7.85 mg/g. More importantly, the composite sponge can stably withstand 50 compression-strain cycles under a high strain of 60% without obvious structural failure. This sponge-supported LDH composite porous system provides a brand-new design paradigm for developing high-performance adsorbents toward practical lithium extraction applications. Download: Download high-res image (115KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Bin Xu,Huabing Wang,Xianlin Wang,Youbang Ye,Jiacheng Zhang,Cailing Yang,Dekang Gao,Yang Jin,Diantang Zhang
This study develops a conductive material that remains stable in air at extremely high temperatures. Traditional conductive materials, such as carbon- or metal-based systems, often degrade or oxidize near 1000 °C, which limits their use in harsh environments. To solve this problem, we designed a composite material made of heat-resistant aluminum oxide fibers and a gallium–indium liquid metal. A needle-based method was used to distribute the liquid metal evenly through the fiber network, creating continuous conductive pathways. The material was then tested under high temperatures in air to evaluate its electrical stability and mechanical response. The results show that it maintained stable electrical performance at 1000 °C in air for three hours, with very small resistance changes. After repeated heating and cooling between room temperature and 1000 °C, the resistance remained highly stable. High-temperature treatment also reduced the material’s sensitivity to bending and pressure. Structural analysis indicates that a stable oxide layer formed during heating, while the fiber framework preserved the overall structure. These findings provide a simple and effective strategy for designing flexible conductive materials for high-temperature and harsh-environment applications.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）