INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Yuqi Su,Denis Saric,Gabriela Guevara-Carrion,Kaijian Li,Ying Zhang,Maogang He,Jadran Vrabec
Diffusion in electrolyte solutions is critical for applications such as seawater desalination, wastewater treatment and energy storage technologies. However, reliable Fick diffusion coefficient data remain scarce. In this work, the self- and Fick diffusion coefficients of 19 aqueous alkali-halide solutions (LiCl, LiBr, LiI, NaF, NaCl, NaBr, NaI, KF, KCl, KBr, KI, RbF, RbCl, RbBr, RbI, CsF, CsCl, CsBr, CsI) are sampled with molecular simulation techniques at ambient conditions of temperature and pressure for salt concentrations ranging from c = 0.5 to 5 mol L–1. For seven solutions, where experimental Fick diffusion coefficient data were not available (LiI, RbF, RbBr, RbI, CsF, CsBr, CsI), digital holographic interferometry measurements are presented, covering a total of 29 state points. Molecular dynamics simulation accurately predicts the Fick diffusion coefficient when a consistent methodology is applied, combining the sampled Maxwell-Stefan diffusion coefficient with the thermodynamic factor derived from the same force field combination.
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Journal of Zhejiang University-SCIENCE A
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2025
·Vol. 26
·期 11
·1070-1082
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IF 3.9
Chen Yu,Ma Yuzhe,Fu Jianzhong,Yao Xinhua
Articular cartilage, which plays a vital role in joint structure, is susceptible to damage from trauma and degenerative joint diseases. Traditional methods for cartilage treatment often involve complex surgical procedures with limited efficacy. Alternatively, implantable drug-loaded scaffolds are an increasingly attractive cartilage treatment option. To address the challenges of structural and functional compatibility between scaffolds and native cartilage, as well as issues related to drug loading, we design a novel cartilage scaffold with a four-region hollow porous fiber network structure. Using an extrusion-based 3D printing platform, a biphasic silicone ink composed primarily of liquid-phase silicone and solid particles was employed to construct the hollow porous fiber network. Mechanical compression tests demonstrate that the cartilage scaffold has mechanical characteristics similar to those of native cartilage tissue, and ultraviolet spectrophotometry measurements confirm its ability to control drug release. These results showcase the feasibility and effectiveness of the proposed cartilage substitute structure.
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OPTICS AND LASER TECHNOLOGY
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2024
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IF 4.6
Yanpei Xu,Yutong Song,Haixing Hao,Zhimeng Zhao,Yong Jin,Qi Wang
ZIF-8 is a typical metal–organic framework (MOF) material, which has great potential for sensor improvement. In this paper, we prepared a high sensitivity surface plasmon resonance (SPR) sensor based on ZIF-8/Au and described the preparation process of the sensor and characterized the samples in detail. The results showed that the synthesized ZIF-8 nanoparticles were uniform with an average diameter of about 50 nm. The performance of the sensor was related to the amount of ZIF-8, which could be controlled by adjusting the number of spin-coating cycles. When the refractive index ranged from 1.3335 to 1.3635, the maximum sensitivity of the sensor reached 3961.36nm/RIU with one cycle of spin-coating, which was 74.05% higher than that of pure Au single-layer film sensor. Furthermore, the feasibility of the proposed sensor for biological sensing was demonstrated by detecting bovine serum albumin (BSA).
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CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Zhong Wang,Jinzhou Li,Shuang Yuan,Jinshuo Yang,Zhiqiang Jin,Xinjia Tan,Jie Dang,Wangzhong Mu,Guojian Li,Qiang Wang
FeCoNi-based high entropy intermetallic compounds are promising substitutes for noble metal catalysts for hydrogen evolution reaction (HER) and oxygen evolution (OER), while their activity is restricted by the synergistic effect between the elements. In this paper, the theoretical model of FeCoNiMnMoP bifunctional catalyst has been reasonably designed given the volcanic curve of M−H bond energy as a valuable guide for candidate metal elements. Theoretical calculations show that the synergistic effect between multiple sites not only accelerates the electron transfer but also reduces the rate-determining step (RDS) barrier. At the same time, the introduction of Mo also enhances the total density of states and reduces the d-band center, thus optimizing the adsorption and dissociation of intermediates. The experimental results confirm that the theoretical model has excellent catalytic performance. In the alkaline solution, FeCoNiMnMoP‖FeCoNiMnMoP requires only an ultra-low cell voltage of 1.49 V for overall water splitting when the current density is 10 mA cm −2 . In general, novel insights on the effects of intermetallic synergies on water decomposition are provided, which is helpful for the design of bifunctional catalysts based on volcanic diagrams.
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ACS Sustainable Chemistry & Engineering
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2024
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IF 7.1
Xinyi Song,Mengke Tang,Cunmin Wang,Xinyu Li,Jintuo Zhu,Jiang Shao,Sheng Huang,Bin Wang,Xiao-Peng Li,Heguo Li,Huan Xu
Development of poly(lactic acid) (PLA) nanofibrous membranes (NFMs) holds great potential to replace the conventional nondegradable air filters, but is largely thwarted by the intrinsically low electroactivity and poor electret properties of PLA. Here, highly electroactive PLA NFMs coupling the triboelectric nanogenerator (TENG)-based recharging mechanisms are demonstrated for long-term respiratory protection from fine and ultrafine particulate matters (PM0.3 and PM2.5), as well as wireless intelligent monitoring of physiological characters. To enhance the in situ electret and self-charging mechanisms for the PLA NFMs, we proposed a stereocomplexation strategy involving direct electrospinning of PLLA/PDLA nanofibers (approaching 500 nm), conferring a remarkable promotion of electroactive phases, dielectric properties, surface potential (over 10 kV), and triboelectric output properties (nearly 20 V at the humanoid breathing conditions). Benefiting from the well-tailored morphology and self-charging features, the PLA NFMs exhibited high surface potential (180 V) and excellent air filtration performance (96.32% for PM2.5 and 92.09% for PM0.3) while providing a desirable air resistance (only ∼200 Pa even at 85 L/min), far surpassing those of the pristine PLLA counterpart (60 V, 72.92%, and 281 Pa, respectively). This was accompanied by high-sensitivity in vivo monitoring of cardiorespiratory characters such as coughing and breathing, essentially arising from the respiration-triggered distinct TENG mechanisms. Featuring long-term efficient filtration and noninvasive monitoring, our biodegradable electroactive NFMs are appealing for respiratory healthcare and real-time monitoring.
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ChemSusChem
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2025
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IF 6.6
Umar Farooq,Boyang Han,Usman Ali Shah,Fa Yang,Sheng Li,Yanping Song,Ali Hassan,Zhengquan Li,Jin Wang
The efficiency of earth-abundant kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cells has been lagging behind the Shockley-Queisser limit primarily due to the presence of deep-level defects. These deep-level defects cause critical issues such as short carrier diffusion length, significant band tailing, and a large open-circuit voltage (VOC) deficit, ultimately leading to low device efficiency. To address these issues, we propose a post-fabrication defect healing strategy by dip-coating the CZTSSe film in dimethylformamide (DMF) solvent. Immersing the absorber layer in DMF (a polar solvent), neutralizes CuSn antisite defects through chemical bonding and facilitates the formation of a dense, smooth CZTSSe film with larger grain size. Deep-level transient spectroscopy revealed a remarkable increase in carrier diffusion length from 93 nm (control device) to 142 nm (champion device), confirming the beneficial effect of solvent-assisted post-treatment on mitigating CuSn antisite defects. The reduction in defect densities led to a decrease in VOC deficit by up to 289 mV, accompanied by an increased champion device efficiency of 11.4%. This work highlights the huge potential of the DMF post-treatment strategy for defect healing in CZTSSe solar cells.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 37
·15051-15057
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IF 5.7
Yaling Wang,Genghong Huang,Zishan Yan,Guangqun Cao,Wenjing Zheng,Shengliang Hu,Bin Liu,Yongzhen Yang
Multicolor-emissive carbon dots (ME-CDs) have been extensively utilized in various fields such as optoelectronic devices, bioimaging, and sensing due to their tunable luminescence properties, solubility, stability, and biocompatibility. However, achieving ME-CDs in a straightforward manner remains a critical bottleneck hindering their wider industrial application. Herein, we report a facile method to prepare ME-CDs using p-phenylenediamine and urea as precursors by changing the type of reaction solvent. Specifically, when the solvents are formamide, deionized water, dimethylformamide, and ethanol, the fluorescence colors are blue, green, yellow, and red, respectively, covering the entire visible light range. The absolute fluorescence quantum yields and lifetimes are 63.02%/1.6 ns, 15.17%/3.4 ns, 16.82%/7.7 ns, and 17.81%/18.8 ns, respectively. The structure and photophysical properties of ME-CDs indicate that the emission of ME-CDs originates from different photoluminescence centers, namely clusteroluminescence, (n, π*) transition of heteroatom groups and (π, π*) transition of large π-conjugated structures. Furthermore, it is demonstrated that ME-CDs can be used as phosphors to fabricate multicolor light-emitting devices (LEDs). This study offers a simple and low-cost method to prepare ME-CDs and employ them as phosphors for LEDs.
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CHEMICAL PHYSICS
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2024
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IF 2
Lu Li,Feng Qin,Yongda Wang,Zhiguo Zhang
The proportion of singlet oxygen ( R ) produced from the triplet state of porphyrin in aqueous solutions was investigated by substituting porphyrin molecules with the metalloporphyrin Platinum(II) meso -tetraphenylporphyrin (Pt-TPP). The feasibility of using platinum porphyrin as a substitute for porphyrin to study the photophysical properties in photodynamic therapy (PDT) was confirmed. The model of first-order decay in a water-methanol mixed solution encompasses potential deactivation processes of the excited triplet states and was built, which was confirmed by monitoring the change in the total transition rate of the T 1 state ( A 0 ) value at different water contents under anoxic environments, obtained through measuring the phosphorescence lifetime ( τ p ) of Pt-TPP. Combined with A 0 and the quenching rate constant of T 1 by O 2 ( k q ), the formula for R in relation to changes in oxygen can be deduced in pure water.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Jintao Zhang,Jin Sun,Xiaohong Zhou,Rongxian Ou,Lichao Sun,Chuigen Guo,Qi Fan,Zhenzhong Gao
Isocyanate-free polyurethane adhesives have attracted considerable attention as a promising environmentally friendly alternative. However, their progress has been hindered by insufficient bonding performance and weak solvent resistance, as well as the laborious synthesis processes involved. Herein, we successfully synthesized a high-performance lignin-based non-isocyanate adhesives (LNIPUs-G) through a one-pot strategy that combines the polycondensation of carbonate groups with polyether amines and aldehyde-amine chemistry. The former aspect circumvents the limitations associated with cyclic carbonate polyaddition while providing a molecular composition containing both rigid and flexible segments along with a high-density polar groups. Concurrently, the rapid hyperbranching process in the latter aspect significantly contributes to achieving a robust crosslinked network. As a result, the LNIPUs-G demonstrates exceptional resistance to boiling water with bond strengths of up to 1.32 MPa when applied to plywood, surpassing previously reported bio-based adhesives. Moreover, the adhesive exhibits remarkable versatility across a wide range of substrates including steel, iron, copper, carbon fiber reinforced composites, ceramics, aluminum, wood, and glass. Additionally, the adhesive has excellent resistance to an extensive range of organic solvents. Life cycle assessment (LCA) results demonstrate that the high-performance and cost-effective LNIPUs-G is expected to disrupt the dominance of bulk formaldehyde- and isocyanate-based adhesives industry.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Dingcheng Sun,Le Zhang,Shengjie Wei,Xu Zhang,Haiyang Xu,Xuan Tong,Xu Ji,Yue Yang
The development of durable, high-performance electrocatalysts capable of sustaining industrial-level current densities is critical for advancing alkaline water electrolysis. In this work, we present a hierarchical Co 9 S 8 /NiS heterojunction directly grown on nickel foam via hydrothermal and controlled sulfurization process. The self-supported electrode delivers low overpotentials of 260 mV (OER) and 40 mV (HER) at 10 mA cm −2 in 1 M KOH. Long-term stability tests of OER and HER respectively confirm 95 % and 96 % current retention at 100 mA cm −2 over 30 h. When employed in a two-electrode configuration, the Co 9 S 8 /NiS@NF electrode pair achieves 10 mA cm −2 overall water splitting at just 1.38 V, outperforming most reported transition-metal sulfide systems. Comprehensive structural and spectroscopic analyses reveals that intimate electronic coupling at the Co 9 S 8 /NiS interface, together with abundant sulfur vacancies, synergistically optimizes charge distribution and lowers kinetic barriers. Moreover, the integrated nano-flower and nano-needle morphology of self-supporting integrated electrode provides an expanded electrochemically active surface area and efficient mass-transport channels. This dual-modulation strategy—combining heterojunction engineering with defect chemistry—provides a scalable path for designing non-precious-metal electrocatalysts that meet the demands of practical hydrogen production.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhen Huang,Yitong Xin,Jiulin Shen,Lan Shen,Junfeng Liu,Xiping Zeng,Huan Ling,Guoli Tu,Hui Yang,Daping He,Bin Hu
Optically transparent electromagnetic interference (OTEMI) shielding materials are garnering significant attention due to their dual capabilities of providing electromagnetic interference (EMI) shielding while maintaining optical transparency. Beyond high shielding efficiency, the materials also require lightweight, ultra-thinness, flexibility, and reliability for extreme conditions applications like industrial and aerospace scenarios, which challenges most existing EMI shielding materials. Herein, we utilize the openings in the percolating silver nanowires network to realize the interpenetrating crosslink of polyamide acid, which enables the in-situ, damage-free encapsulation of the vulnerable conductive network and forms a lightweight OTEMI shielding film with exceptional stability. The 8 μm EMI shielding films show 29–46 dB shielding effectiveness in the 12–18 GHz range, with variable visible light transmittance (45 %-86 %@550 nm), while being capable of withstanding a broad temperature variation from 220 °C to − 170 °C. Moreover, the solution-processed film possesses excellent bending stability and chemical corrosion resistance, showing its unique applications in harsh conditions inaccessible to humans.
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JOURNAL OF LUMINESCENCE
·
2024
·
IF 3.3
Yaoyu Liu,Zongshuai Ji,Tianyu Wang,Guanfeng Liu,Shuai Zhang,Xin Ding,Bing Teng,Shaohua Ji
CsMnX 3 (X = Cl, Br, I) metal halide materials are prone to dissociation in the atmosphere due to the hygroscopic nature of cesium halide (CsX) and manganese halide (MnX 2 ). Addressing this challenge, a novel strategy for synthesizing large bulk of CsMnCl 3 ·2H 2 O single crystals (SCs) using an anti-solvent-assisted method was presented. Importantly, the SCs have a sheet shape with dimensions of 22 mm × 9 mm × 2 mm, and demonstrate superior crystallinity and strong red emission at 630 nm. Furthermore, the electron localization function (ELF) diagram demonstrates that the robust electronegativity of O element, enhancing the thermal stability of the octahedral structure. Meanwhile, the crystals retained 85 % of their original value even after 90 days in an atmospheric environment. In addition, red light-emitting devices (LEDs) were fabricated using the CsMnCl 3 ·2H 2 O single crystals , which shows the voltage, and Commission Internationale de lEclairage (CIE) color coordinates remained superior stable when the current changed from 100 to 200 mA. Thus, the excellent stability of CsMnCl 3 ·2H 2 O can promote its practical application in optoelectronics .
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