INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Shiming Xu,Jintang Duan,Lianfang Feng,Xueping Gu,Cailiang Zhang,Liu Liu
The widespread implementation of hydrogen energy is critically constrained by the challenge of storage. Aluminum hydride (α-AlH 3 ), a binary hydride stable under ambient conditions with high volumetric hydrogen density, represents a promising candidate. However, when it is traditionally prepared from lithium aluminum hydride (LiAlH 4 ) and aluminum chloride (AlCl 3 ), the process is cost-prohibitive for scale-up. This study presents a cost-effective synthesis strategy by systematically investigating the effects of different molar ratios of LiAlH 4 /NaAlH 4 /AlCl 3 (4:0:1, 1:3:1, 0.5:3.5:1, 0:4:1). Results indicate that the introduction of LiAlH 4 significantly enhances reaction efficiency and kinetics. The optimal ratio of 1:3:1 effectively compensated for the slower kinetics of NaAlH 4 , achieving over 94% conversion of AlCl 3 to AlH 3 ·nEt 2 O etherate. Desolvation studies revealed that AlH 3 ·nEt 2 O derived from NaAlH 4 required higher temperatures for complete phase transformation, whereas systems with LiAlH 4 content below 25% were insufficient to effective desolvation. The α-AlH 3 crystals produced from the 1:3:1 ratio exhibited a well-defined cubic morphology and high thermal stability, with a decomposition temperature of 165 °C. By replacing 75% of the costly LiAlH 4 with NaAlH 4 , this hybrid approach achieved an approximately 50% reduction in the material cost. These findings provide critical process parameters and a viable pathway for the cost-effective, large-scale production of high-performance α-AlH 3 for hydrogen storage applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Wenqiang Wan,Kaiming Liang,Wenbo Duan,Jinhong Liu,Pengyu Zhu,Yifei Li,Junzhuo Ke,Peng He,Shuye Zhang
Flexible strain sensors are essential for wearable electronics, soft robotics, and human–machine interfaces, yet printed carbon-based films often suffer from brittleness, limited sensitivity, and poor film–substrate adhesion. Here, we report an atmospheric microwave corona discharge–assisted microwave heating (MCD-MH) strategy that enables seconds-scale precursor decomposition and graphene oxide (GO) to reduced graphene oxide (rGO) conversion, producing AlCoCrFeNi high-entropy alloy nanoparticles (HEA NPs) encapsulated by rGO shells and uniformly anchored on rGO sheets (HEA@rGO NPs/rGO). An optimal window (900–1200 W, 15–20 s) achieves rapid HEA crystallization and efficient reduction while suppressing over-etching, yielding low-resistivity, photothermally active hybrids. When formulated into conductive inks and printed on PDMS, flash-lamp photonic sintering induces transient photothermal softening and a transition to capillarity-dominated interfacial engulfment, forming deeply embedded, mechanically interlocked conductive networks with reduced hysteresis (non-sintered devices show markedly inferior responses). Finite-element simulations reveal substantial near-field enhancement (250–2500 nm), demonstrating that core–shell nanoparticle modification can effectively enable synergistic photothermal conversion and interface strengthening. The resulting sensors deliver a wide strain range (0.1–30%), ultrahigh sensitivity (gauge factor up to 295.9 at 30% strain), fast response (<100 ms), and excellent durability over 10,000 cycles, enabling reliable monitoring of complex physiological/motion signals and 2D displacement mapping with direction recognition. This materials–processing–mechanics co-design provides a general strategy for robust, high-performance flexible sensing systems.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Hui Liu,Weikun Jiang,Wenliang Wang,Shubin Wu,Pedram Fatehi,Yu Liu
The development of multifunctional nanomaterials with unique structural and functional properties is a critical area of research in materials science; however, their synthesis is full of challenges. Herein, we firstly reported a simple synthesis strategy for fabricating resin-based hollow nanocages (RHNCs) with controllable sizes and a unique hollow nanostructure, which exhibited potential for a wide range of multifunctional applications. RHNCs were synthesized using lignin as a soft template through a gradient polymerization process of resin nanospheres, followed by the removal of lignin templates via ethanol dissolution, resulting in the formation of a spherical shell structure with well-defined pores. Lignin addition regulated RHNCs' particle size and morphology while enhancing their specific surface areas and application values. The RHNCs exhibited excellent dispersion stability in various media, attributed to their smaller particle size and greater exposure of hydrophilic functional groups. Additionally, the resulting RHNCs possessed notable antioxidant activity and favorable biocompatibility. As nano-reinforced fillers, the addition of a small amount of RHNCs significantly improved the mechanical performance of polymer materials, owing to cross-linking through interpenetrating networks and reinforcement provided by hydrophobic rigid structures, particularly in terms of tensile strength, elongation at break, and toughness. Furthermore, RHNCs can serve as efficient free radical initiators for hydrogel polymerization, reducing the gelation time to within seconds at room temperature without the need for external stimuli. The unique synthesis strategy and multifunctional properties of RHNCs open new avenues for the development of advanced nanomaterials with tailored properties for specific applications.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2026
·
IF 15.7
Li Yuchen,Qiu Ying-Ru,Liao Jinsha,Li Helios Y.,Liu Zhouyuntong,Chen Yuxiang,Yu Mao,Xu Lizhi,Liu Chang,Liu Jefferson Zhe,Li Jian-Feng,Liu Weishu,Wang Yao-Hui,Fang Nicholas X.
Ionic thermoelectric (i-TE) materials have demonstrated a high thermopower in harvesting low-grade heat, emerging as superior candidates for self-powered electronics. However, coupling two i-TE effects in n-type materials is scarce, which restricts the development of high-performance systems. Herein, we uncover an overlooked thermogalvanic redox reaction between Cu 2+ and Cu + stabilized by Cl⁻ and quantitatively track the progressive reaction process by operando characterization. In binary polyvinyl alcohol (PVA)-CuCl 2 gels, an interactive i-TE coupling effect driven by ion speciation is validated, which exhibits an enhanced thermogalvanic redox as CuCl 2 concentrations increase while suppressing the thermodiffusion contribution. By distinguishing and quantifying coordination species, we reveal the impact of [Cu-Cl] speciation on the i-TE effect contributions. Correspondingly, a giant thermopower of −30.6 mV K -1 and a remarkable power density of 0.6 mW m -2 K -2 are achieved, respectively, by tuning ion coordination speciation. The long-term power generation exhibits a reversible and sustainable heat-to-electricity conversion. High output voltage of 3.5 V and power of 22 µW are produced in 16-cell i-TE modules when harvesting 15 K. Our findings reveal an interactive thermo-diffusion/galvanic coupling effect based on coordination chemistry, offering a potential design principle for high-performance i-TE materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Reaction Chemistry & Engineering
·
2026
·
IF 2.9
Ruitong Ma,Bing Liu,Ruibo Wang,Zhijiong Wu,Liying Guo
Four types of metal-based ionic liquid catalysts [DA-2PS][FeCl4]2, [DA-2PS][MnCl3]2, [DA-2PS][AlCl4]2, and [DA-2PS][SnCl5]2 were prepared. Their structure and thermal properties were characterized and analyzed by FTIR, 1H NMR, and TGA. The type of acids was analyzed using pyridine infrared spectroscopy. Waste polyester fiber (PET) was used as the sample for glycolysis, and the performance of the four metal-based ionic liquid catalysts in degrading PET was investigated. By optimizing the process parameters, the best reaction conditions were obtained, the chemical structure and purity of the degradation product bis(hydroxyethyl) terephthalate (BHET) were analyzed. The results showed that the four metal-based ionic liquid catalysts were successfully synthesized and exhibited good thermal stability, among which [DA-2PS][FeCl4]2 demonstrated the best catalytic performance. Under the conditions of a temperature of 190 ℃, a mass ratio of ethylene glycol to PET of 9:1, a reaction time of 7 h, and a catalyst amount of 2.5% of the total mass of the reactants, the PET conversion reached 96.5%, and the BHET yield was 89.1%. Furthermore, the catalyst maintained high catalytic activity even after six cycles of use, indicating that the synthesized metal-based ionic liquid catalysts exhibit excellent catalytic degradation performance for PET, providing a theoretical basis for the chemical recycling of waste polyester fiber.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF FLUORESCENCE
·
2026
·
IF 3.1
Zhu Danhong,Wu Wanhui,Zhang Lejing,Liu Zixin,Zhao Huan,Zheng Zhongkai,Lin Mei
The development of fluorescent probes with high stability and selectivity for ferric ion (Fe³⁺) detection remains crucial for environmental monitoring. Herein, we report a one-pot hydrothermal synthesis of nitrogen and sulfur co-doped carbon dots grafted with polyvinylamine (CDs-PVAm) using citric acid and L-cysteine as sustainable precursors. The obtained CDs-PVAm exhibited strong blue fluorescence with a high quantum yield of 49% and an average fluorescence lifetime of 9.75 ns, attributed to the synergistic effect of N, S co-doping and PVAm passivation which effectively suppresses non-radiative recombination. The material demonstrates excellent environmental stability over a wide pH range (3–9), under thermal stress (25–45 °C), and prolonged irradiation. As a fluorescent probe, CDs-PVAm shows high selectivity toward Fe³⁺ among various metal ions, with a linear response range of 0–200 µM and a detection limit of 11.40 µM. Practical application in natural water samples achieved satisfactory recoveries (100.46–101.45%) with low relative standard deviations (0.71–1.43%), confirming its reliability for Fe³⁺ detection in complex aqueous matrices. This work presents a robust nanoplatform for environmental sensing with significant application potential.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2026
·Vol. 18
·期 2
·231
·
IF 4.9
Furu Song,Dongxia Li,Liqiang Song,Ziku Cao,Zhipei Cao,Yafei Sang,Lianwei Kang
The high salt content in saline–alkali soil has a significant impact on plant nutrient absorption and water transport, severely inhibiting crop growth. Through esterification reactions, silicic acid is grafted onto humic acid to form an organic silicon fertilizer (OSiF). The unique Si-O-C bond in the material endows this new type of organic silicon-based fertilizer with the ability to effectively alleviate the harm of high-salt soil to plants. In this study, a soil column experiment was designed to systematically evaluate and compare the effects of organic silicon fertilizers with different organic silicon contents (0%, 5%, and 10%) and traditional compound fertilizers on soil water characteristics, salt ion concentration, pH value, and electrical conductivity. The results showed that the addition of an appropriate amount of organic silicon fertilizer could significantly reduce the activity of salt ions in the soil solution. Experimental data indicated that the 5% and 10% organic silicon fertilizers had the most significant effect on the consumption of major salt ions such as sodium and chloride ions. X-ray photoelectron spectroscopy (XPS) analysis revealed that the reaction of Si-O-C bonds in the soil with Lewis bases led to a shift in the valence state of the 1S electrons of silicon atoms, providing a theoretical basis for the mechanism by which silicon fertilizers alleviate high-salt stress.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Chemistry-Switzerland
·
2026
·Vol. 8
·期 1
·11
·
IF 2.4
Aikun Liu,Xu Liu,Zixuan Huang,Yanqing Ge
Nitrite, as a widely present nitrogen oxide compound in nature, and is extensively distributed in production and daily life; precise and rapid detection of it is of great significance for ensuring human health. This study developed nitrogen-doped carbon dots (N-CDs) using malic acid and 3-diethylaminophenol as precursors by one-step hydrothermal treatment. The obtained N-CDs exhibited strong green fluorescence with a high quantum yield of 20.86%. More importantly, they served as a highly effective fluorescent probe for NO2−sensing, demonstrating a low detection limit of 28.33 μM and a wide linear response range of 400 to 1000 μM. The sensing mechanism was attributed to an electrostatic interaction-enhanced dynamic quenching process. Notably, the probe enabled dual-mode detection: a distinct color change from light pink to dark brown under daylight for visual semi-quantification, and quantitative fluorescence quenching. The N-CDs showed excellent selectivity over common interfering ions. Furthermore, their low cytotoxicity and good biocompatibility allowed for successful bioimaging of exogenous and endogenous NO2−fluctuations in live HeLa cells. This work presents a facile green strategy to synthesize multifunctional N-CDs that realized the sensitive, selective, and visual detection of NO2−in environmental and biological systems.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Rongkai Kang,Han Wang,Xingchang Zhang,Boya Zhang,Yiqun Du,Hengyi Fang,Dan Xu,Krishnaswamy Nandakumar,Jianxin Zhang
High-entropy materials promise exceptional structural stability and tunable chemistry, yet their application in aluminum batteries (ABs) remains hampered by sluggish ion transport and poorly understood entropy and defect interactions. Here, we combine the high-entropy strategy with the layered double hydroxide (LDH) concept to design a two-dimensional (2D) high-entropy hexagonal material with engineered oxygen vacancies (V O -HEH) to directly tackle these bottlenecks in Al storage. Entropy-driven elemental diversity induces strong orbital hybridization between metals of disparate electronegativity, creating a delocalized electronic environment that accelerates charge transfer. The oxygen vacancies (V O ) formed in parallel are demonstrated to suppress coulombic interaction and open rapid migration channels, thereby overcoming the intrinsic kinetic barriers of Al 3+ insertion. The V O -HEH cathode delivers improved capacity (177 mAh g −1 at 0.5 A g −1 ) and enhanced cycling stability (102 mAh g −1 over 1400 cycles at 3.0 A g −1 ) enabled by the synergistic effects of entropy stabilization, defect regulation, and multi-electron redox. This work presents a well-designed single-phase high-entropy cathode and elucidates how entropy and defect effects modulate the electronic structure and govern the electrochemical behavior of ABs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2026
·
IF 9.8
Changsheng Wu,Jiasong Huang,Zhiyong Wang,Xianbo Jin
This study proposes a low-temperature molten salt electrolysis strategy to prepare dendritic nanostructured silicon (nSi) from Al-Si alloys for high-performance lithium-ion battery anodes. The method uses the 403 K AlCl 3 -NaCl-KCl molten salt as electrolyte, in which aluminum is selectively removed from Al-Si (AlSi 12 , AlSi 20 , AlSi 30 ) alloys through anodic dissolution while metallic aluminum is recovered at the cathode. The resulting nSi exhibits tunable porosity dependent on the Al content in Al-Si, and the AlSi 12 -derived nSi 12 shows the highest specific surface area (48.7 m 2 g −1 ) and pore volume (0.21 cm 3 g −1 ) with interconnected 30–50 nm dendritic structures. When evaluated as anodes, nSi 12 demonstrates superior electrochemical performance with initial Coulombic efficiency of 91.1% at 1 A g −1 , retaining 2441 mAh g −1 after 100 cycles (or 80.0% capacity retention). The enhanced performance stems from its porous architecture buffering volume expansion, as evidenced by the electrode expansion after 100 cycles of 26% for nSi 12 versus 60.4% for nSi 30 . Comparative analysis reveals lower charge transfer resistance and higher Li + diffusion coefficient in nSi 12 . This method achieves an Al recovery rate of 95%, offering an energy-efficient, closed-loop approach for nanostructured silicon production with dual advantages in sustainable manufacturing and high-performance energy storage.
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2026
·
IF 7.7
Muzi Li,Ranbin Liu,Xiaodi Hao,Dongye Zhao,Xi Cheng,Jian Pan,Tianyuan Xu,Shuting Tian,Yangmo Zhu
Perfluoroocatane sulfonate (PFOS) has drawn increasing global attention due to its environmental omnipresence and adverse health effects. This study presents a synergistic strategy to address the dual challenge of legacy PFOS contamination and sustainable sewage sludge disposal by developing a novel, zinc-modified sludge-based biochar (Zn/SBC) for highly efficient PFOS removal. The innovation lies in the one-step pyrolysis using ZnCl 2 as an activator, which dramatically enhanced the specific surface area by 50-fold (to 261.33 m 2 /g) by creating a well-developed micro- and mesoporous structure. Under optimized conditions, 26%Zn/SBC exhibited a superior PFOS adsorption capacity of 60.14 mg/g, 5.83 times than that of pristine biochar, and achieved >99% removal across a wide pH range (3–11). The material exhibited remarkably stable performance, sustaining a removal efficiency over 93.6% in the presence of high concentration of competing ions and humic acid. After 5 cycles of repeated uses, 26%Zn/SBC remained highly reactive in adsorption for PFOS. In addition, the superior adsorption of PFOS by optimized 26%Zn/SBC is attributed to a unique concurrent mechanism, including electrostatic attraction facilitated by the elevated point of zero charge (pH PZC = 8.1), surface complexation with Zn/ZnO sites, π-anion interaction, and hydrophobic effects. This study not only presents a high-performance and low-cost adsorbent for PFOS remediation, which holds the potential for more cost-effective PFAS removal, but also establishes a sustainable "waste-to-wealth" strategy, paving the way for practical solutions to concentration persistent organic pollutants in aquatic environments.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 6
·379
·
IF 3
Hou Yushuang,Wu Weili
The need for clean water is the most basic human right. Water scarcity will be one important environmental problem of all countries in the future. Phosphorus in the water environment, come from some untreated industrial, agricultural and domestic wastewater, pose a significant threat to human health and and other biota due to their toxicity. In this study, the modified corn straw biochar (LBC) /sodium alginate (SA) composites (LBS) adsorbents were prepared to remove phosphate from water. The results showed that the best pyrolysis temperature of preparing LBS was 550 °C. When pH was 2 and mass ratio of 550LBC (at 550 °C)/SA was 0.3 g/0.3 g, the adsorption capacity and removal efficiency of phosphate by 550LBS were 61.4 mg/g and 92%, respectively. The adsorption of phosphate by 550LBS was consistent with Langmuir model and pseudo 1st order model (R 2 > 0.95), and reached adsorption equilibrium at 20 min, indicating that 550LBS was monolayer adsorption, physical adsorption was the main adsorption and chemical adsorption was the secondary adsorption. The adsorption of 550LBS was the protonation between surface hydroxyl group and H + , the phosphate adsorption of 550LBS was dominated by ligand exchange and electrostatic attraction. Compared with the maximum adsorption capacity of 550LBS, used 550LBS could be reused, the adsorption efficiency of adsorbents after three tests was still above 41%. This showed that reusability and renewability of 550LBS were good, and promotes its application in water purification processes. Graphical
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）