CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Liming Liu,Xuehui Jia,Jingyu Bao,Xinqi Luan,Changhao Li,Chi Xu,Liqin Zhou,Jianmin Chen,Zhaowei Jia,Ruimeng Wang,Zhongxing Zhao,Zhenxia Zhao
Metal-organic framework (MOF)/photothermal composites typically suffer from the intrinsic trade-off between adsorption capacity and photothermal regeneration efficiency, limiting their synergistic adsorption-desorption performance. Cu-based MOF (HKUST-1) crystals were grown on photothermal inverse opal polypyrrole (IOPPy) with abundant surface pyrrole N sites (metal coordination) by microwave-assisted in-situ method and successfully constructed IOPPy(Cu)@HK-M. The abundant N-Cu-O interface bridging in IOPPy(Cu)@HK-M ensured ultrahigh MOF loading (90 wt%) and induced the formation of unsaturated Cu and interface micropores. It enhances toluene capture capacity (1.5 times, P / P 0 = 0.0026) and adsorption kinetics (1.8 times) compared to HKUST-1. During photothermal desorption process, photon localization effect of inverse opal structure significantly enhances the photothermal conversion efficiency to 54%, which is 2.2 times of HKUST-1. The inverse opal structure also promotes efficient energy transfer throughout the system after light conversion and reduces internal temperature gradient, and act on MOFs via N-Cu-O interface, thereby accelerating the desorption of toluene within the MOFs. Hence, IOPPy(Cu)@HK-M achieves a remarkable 99.7% desorption ratio and 2.9 times desorption rate versus HKUST-1 under same energy input. The construction of inverse opal-MOF successfully achieves synergistic enhancement of toluene adsorption/desorption with high efficiency and low energy consumption by reinforcing photothermal conversion efficiency and mass/heat transfer capabilities.
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高影响因子
Science Advances
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2026
·Vol. 12
·期 13
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IF 13.9
Decun Luo,Han-Xuan Liu,Zheng-Qing Huang,Xi-Yang Yu,Lei Chen,Riguang Zhang,Zhun Hu,Chun-Ran Chang
Frustrated Lewis pairs (FLPs) have emerged as a transformative strategy in small-molecule activation, leveraging steric inhibition to sustain highly reactive Lewis acid–base pairs capable of heterolyzing nonpolar molecules such as H 2 and CO 2 through electric field (EF)–induced polarization. Despite their promise, FLPs exhibit inherent limitations in activating highly stable, kinetically inert substrates, owing to insufficient field strength and limited polarization efficacy. The systems with intensified charge separation, termed frustrated ion pairs (FIPs), can transcend these constraints by combining extreme ionic reactivity with persistent frustration. Here, we propose a geometrically controlled FIPs system that systematically modulates interionic distance and interaction via cation size engineering, ensuring sustained frustration and remarkable catalytic enhancement. The relationship between the interaction strength of anions and cations in the FIPs and their performance in CO 2 cycloaddition exhibits a volcanic curve trend. FIPs catalysts with optimal distance (4.11 Å) and interaction strength (−78 kJ·mol −1 ·Å −1 ) between its cation and anion exhibit optimal catalytic performance ( TOF = 184 hour −1 ). The frustrated configuration liberates Br − from electrostatic confinement, achieving unprecedented nucleophilic activity by reducing the ring-opening energy barrier by 48.7 kJ·mol −1 compared to conventional ionic pairs. Optimal ion-pair distance in FIPs generates an intense asymmetric electric field that strongly polarizes CO 2 , yielding an induced dipole moment of ∆μ = 0.132 D. Moreover, the FIPs structure is extended to heterogeneous systems and exhibits a similar trend with homogeneous ones, showing its application potential.
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高影响因子
ACS Catalysis
·
2026
·
IF 13.6
Xiaojie Chen,Wenqi Jia,Xuejie Cao,Guangyu Xu,Ting Jin,Lifang Jiao
Ruthenium oxide (RuO2) exhibits high activity for the oxygen evolution reaction (OER) but suffers from severe degradation under the harsh operating conditions of proton exchange membrane water electrolyzers (PEMWEs), especially at high current densities. This study reveals that the accelerated degradation at high current density is driven by potential-dependent Ru–O bond contraction, enhanced bond covalency, and the subsequent activation of lattice oxygen. High crystallinity effectively stabilizes RuO2 by preventing detrimental structural evolution, thereby eliminating dynamic anion redox under high oxidative potential up to 1.8 VRHE. Based on this principle, RuO2 featuring high bulk and surface crystallinity and a large surface area (denoted as RuO2-HCLA) is prepared via a gel-template pyrolysis method, which exhibits high catalytic stability. As a practical validation, the PEMWE with the RuO2-HCLA anode demonstrates a low degradation rate of ∼38.4 μV h–1 at industrial-related conditions (1.5 A cm–2, 60 °C). Notably, the assembled electrolyzer withstands harsh voltage fluctuation scenarios, demonstrating minimal performance loss (∼1%) at 3 A cm–2 after 280 h of fluctuating input (1.5–1.8 V). This work provides a design strategy for durable and high-performance Ru-based anodes.
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Advanced Science
·
2026
·
IF 14.1
Daohu Sheng,Siyao Cheng,Mengmeng Zhang,Jinglei Zhang,Xufei Zhu,Weijin Li,Bo Zhang,Aming Xie
The dielectric response of carbon-based single-atom (SA) absorbers is intrinsically constrained by the highly symmetric charge distribution of planar M-N 4 coordination motifs, which suppresses dipole polarization and limits electromagnetic wave (EMW) attenuation. Here, a nanocurvature-driven symmetry-breaking strategy is proposed to activate latent dielectric polarization at SA sites through geometric regulation. By combining click chemistry with template-assisted synthesis, metal SAs are anchored onto hollow nitrogen-doped carbon spheres with precisely tunable diameters, enabling systematic modulation of local nanocurvature. Theoretical calculations and experimental analyses reveal that curvature-induced surface charge accumulation disrupts the electronic symmetry at Ni-N 4 centers, markedly enhancing local charge density, dipole moments, and polarizability. Consequently, the optimized Ni/HNC-200 absorber achieves an ultralow minimum reflection loss of −74.1 dB, representing a staggering 390% enhancement over HNC-200 (−15.1 dB), and exhibits a reduced radar cross section of −70.49 dB m 2 . A flexible electronic patch further demonstrates over fivefold suppression of electric-field radiation from mobile phone chips. The universality of this mechanism is validated in Co- and Cu-based systems, establishing nanocurvature as a geometry-enabled design paradigm for high-performance SAs EMW absorbers.
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高影响因子
AICHE JOURNAL
·
2026
·
IF 4.4
Shaojie Ma,Bangzhu Wang,Weiming Zhai,Xinyu Liu,Linlin Chen,Yanhong Chao,Hongping Li,Huaming Li,Peiwen Wu,Wenshuai Zhu,Chunming Xu
Selective capture of structurally diverse molecules remains a major challenge in chemical separations. Here, we introduce dual-acidic deep eutectic solvents (DESs) in which Lewis acids modulate the Brønsted acidity, creating a synergistic environment for the simultaneous extraction of basic and non-basic nitrogen-containing molecules. Brønsted sites, activated by adjacent Lewis centers, preferentially bind basic heterocycles, while the Lewis sites coordinate with non-basic species, achieving unprecedented extraction efficiencies. Mechanistic studies combining FT-IR spectroscopy, density functional theory, and molecular electrostatic potential analysis reveal that proton transfer, Lewis acid–base coordination, and π–cation interactions collectively govern selective recognition. This dual-acidic design strategy is generalizable across different LA-metal DES compositions and robust against competing chemical species. Our findings demonstrate a rational approach to fine-tune cooperative acid functionalities, establishing a versatile platform for selective molecular capture and separations beyond conventional single-acid systems.
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Journal of Materials Research and Technology-JMR&T
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2026
·
IF 7.3
Jiatong Zhong,Liang Liu,Rui Bao,Caiju Li,Weiyi Yang,Xin Kong,Xiaofeng Chen,Zunyan Xu,Fengxian Li,Jianhong Yi
Achieving exceptional strain hardening is a promising strategy for simultaneously enhancing the strength and ductility of titanium matrix composites (TMCs). In this study, a novel carbon-based nanomaterial, namely polypyrrole (PPy), was used to fabricate TMCs reinforced with intragranular titanium carbide (TiC) through spark plasma sintering and hot rolling. Concurrently, face-centered cubic of titanium (FCC-Ti) was formed through the synergistic effects of high local stress field and interstitial solid solution oxygen atoms. The ultimate tensile strength and uniform elongation of the Ti-0.6PPy composites reached 1029 MPa and 11.3%, representing a 67% and 88% improvement over the pure Ti (614 MPa, 6.0%), respectively. The significantly enhanced strength was benefited from the O atoms solid solution strengthening and Orowan strengthening. Ex-situ EBSD combined with TEM characterization were conducted to analyze the microstructure of the deformed Ti-0.6PPy composites. It had revealed that dislocation hot spots moved from grain boundaries to the grain interiors and surrounded to the new formed FCC-Ti phase. This transformation enhanced the dislocation storage capacity, led to higher dislocation density and prolonged strain hardening, thereby achieved superior uniform elongation and ductility.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Jinghao Zhao,Baoqin Hao,Wei Tan,Jing Chen,Yan Meng,Lin Han,Xinhao Qu,Xin Li
Constructing vanadium oxide/metal selenide heterostructure is a promising strategy to enhance the reaction kinetics and structural stability for high-performance sodium-ion batteries (SIBs) anode. However, achieving a uniform and robust heterointerface remains challenging due to the multivalent state transformation of the V and the thermodynamic stability difference between V O and V Se bonds. Herein, we design and synthesize the V 2 O 3 /Fe 3 Se 4 @C heterostructure via a facile liquid-phase reaction followed by a seleniziation method. The unique coordination environment in a ferric vanadate and the reduction potentials difference between Fe and V cations promote the formation of a well-defined heterointerface. Density functional theory calculations confirm the formation of a built-in electric field at the heterointerface, thereby accelerating the reaction kinetics. The electric field originates from the orbital hybridization, which promotes the formation of a robust Se V O bonding configuration. Meanwhile, the carbon coating maintains structural integrity by suppressing volume expansion during cycling. These synergistic effects effectively enhance the overall structural stability of the material. Thus, the prepared V 2 O 3 /Fe 3 Se 4 @C anode exhibits exceptional electrochemical performance, delivering a high specific capacity of 378.2 mAh g −1 at 0.5 A g −1 and 308.9 mAh g −1 at 8 A g −1 , and retaining a specific capacity of 313.8 mAh g −1 after 2500 cycles at 5 A g −1 . This work establishes a new electron orbital modulation strategy for exploring high-performance vanadium oxide-based anode materials for SIBs.
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高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2026
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IF 5.1
He Liu,Zixu He,Chenbo Gong,Runyi Han,Zichen Qi,Lin Shi,Zhaohong Song,Fan Wang,Dong Wen,Zhaopeng Xu
To address the lack of non-invasive real-time monitoring of hand motor symptoms in Parkinson’s disease, this study proposes a flexible piezoelectric sensor that detects electrical signal responses generated under different finger bending angles and frequencies, which can be used to monitor and evaluate finger motor function and rehabilitation training in patients with Parkinson’s disease. Moreover, the sensor maintains stable output over seven days and exhibits good biocompatibility. A doping strategy employing polypyrrole-coated BaTiO 3 (PPy@BT) nanoparticles is used to significantly enhance the piezoelectric performance of poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) nanofiber sensors. PVDF-TrFE/PPy@BT composite nanofiber membranes are prepared by electrospinning and assembled into a flexible piezoelectric nanogenerator (PENG). The microstructure, dielectric properties, mechanical, and piezoelectric performance of the composite are systematically characterized. Experimental results demonstrate that, under optimal doping conditions, the PENG exhibits an open-circuit voltage of 13.64 V, which corresponds to approximately 455% of the value of the undoped PVDF-TrFE membrane. Furthermore, the device maintains a stable output over 3000 cyclic loadings. The device achieves a maximum sensitivity of 39.34 V·kPa⁻ 1 in the low-pressure region (0–1 kPa) and delivers a peak power density of 0.32 W·m⁻ 2 at a load resistance of 10 8 Ω, demonstrating its excellent energy conversion efficiency.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Kai Yan,Xuhang Yue,Zuhan Yang,Qunna Xu,Yan Zong
Flexible strain sensors have attracted much attention in human health monitoring. However, it is challenge to endow self-power and material recognition performance to conventional strain sensors. In this study, carboxylated polystyrene microspheres coated with polypyrrole (CPS@PPy) were synthesized by the in-situ growth of polypyrrole. The VAD-P-M eutectogel is prepared through one-step photoinitiated radical polymerization, which is composed of acrylic acid (AA) and 1-butyl-3-vinylimidazolium bromide (BVIM + Br − ) as polymeric networks, CPS@PPy microspheres and MXene nanosheets as conductive fillers into DES. Owing to the integration of multiple hydrogen bonds with a dual conductive network, the VAD-P-M gel architecture imparts exceptional comprehensive properties, including an elongation at break of up to 1283%, conductivity (0.064 cm∙ms −1 ) and adhesion strength to paper (881.3 kPa). Furthermore, the VAD-P-M gel sensor of strain gauge factor (GF S ) significantly increases from 2.38 to 5.10, while the pressure gauge factor (GF P ) spans from −0.0408 to −0.244 kPa −1 , enabling the sensor to accurately detect and monitor human motion, facial micro-expression and Morse code signals. More interestingly, a 3 × 3 pressure sensing array exhibited precise recognition of finger pressing positions (column and row). Importantly, we developed a single-electrode triboelectric nanogenerator (V-TENG) with an open-circuit voltage (V OC ) of 198.87 V and a short-circuit current (I SC ) of 1.67 μA, which can be used to self-powered human motion sensing and recognize different materials (glass, ceramics, plastic, human-skin, and aluminum). This outstanding performance of the VAD-P-M gel providing a new strategy for developing next-generation multifunctional eutectogels.
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Journal of Materials Chemistry B
·
2026
·
IF 6.2
Weiyang Wang,Akou May Tehoungue,Zilong Gao,Yi Wang,Manyi Sun,Yixue Lu,Guozheng Zhang,Yeshun Zhang
Hydrogels derived from natural materials with intrinsic bioactivities and pH responsiveness have attracted considerable interest in biomedical applications due to their versatile functionality. In this study, a robust multifunctional sericin–pyrrole hydrogel (S8P2) was synthesized using sericin isolated from fibroin-deficient silkworm cocoons and crosslinked with pyrrole. The resulting hydrogel exhibits fast gelation, a uniform microporous structure (15 µm pore size, 65% porosity), high transparency (∼65% transmittance), pH-responsive swelling and degradation behavior, and excellent mechanical properties, including prominent elastic recovery and a compressive modulus of 15 kPa. Notably, the hydrogel demonstrates broad-spectrum antibacterial efficacy against both S. aureus and P. aeruginosa, along with significantly improved antioxidant activity compared to sericin alone. Furthermore, it demonstrates excellent cytocompatibility with L929 fibroblasts, high cell adhesion, and minimal hemolysis (<5%). These attributes position the S8P2 hydrogel as a highly promising material for applications in wound dressing, tissue engineering scaffolds, and controlled drug delivery systems.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Wei-Guang Yang,Ji Liu,Zhuo Luo,Bai-Xue Li,Changjun Li,Zhong-Zhen Yu,Dongzhi Yang
Although solar-driven water evaporation is promising for mitigating water scarcity in the areas lacking clean water and far away from power grids and water grids, the low solar energy utilization, high water vaporization enthalpy, and salt deposition seriously impede its practical application for continuous, efficient, and stable desalination of seawater. Herein, siphoning and Hofmeister effects-enhanced hanging inverted cone-shaped solar-thermal evaporator with a top-down water supply is designed for efficient solar-thermal desalination of seawater, which is prepared by in situ polymerization of pyrrole on nonwoven cellulose fabrics and subsequent coating with poly(vinyl alcohol) (PVA) hydrogel. The 3D hanging inverted cone structure significantly enlarges the areas for solar-thermal energy conversion and water evaporation, while the top-down water supply via the pressure of the siphoning effect ensures sufficient water, achieving a high water evaporation rate of 3.90 kg m–2 h–1 with the water vaporization enthalpy of 2.06 kJ g–1 during solar-thermal evaporation of pure water under 1-sun irradiation. In an aqueous solution with 3.5 wt % NaCl, the PVA hydrogel generates additional intermediate water via the Hofmeister effect to further reduce the water vaporization enthalpy to 1.61 kJ g–1, thereby increasing the water evaporation rate to 4.89 kg m–2 h–1. Thanks to the significantly enlarged evaporation surface area, the reduced water vaporization enthalpy, and the sufficient top-down water supply, the hanging inverted cone-shaped evaporator with the top-down water supply is highly efficient in continuous desalination of natural seawater, achieving a water evaporation rate of 4.64 kg m–2 h–1 with a salt rejection of 99.99%.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xueke Jiao,Shuangqing Li,Lili Chai,Yafei Zhao,Bing Zhang
The practical application of organic phase change materials (PCMs) like polyethylene glycol (PEG) is limited by leakage, low thermal conductivity, and lack of active energy-harvesting capability. To address these challenges, a multifunctional composite PCM (PEG@HCS-85) was fabricated through a stepwise strategy. PEG was first encapsulated within a conductive, honeycomb-like carbonized sugarcane (CS) skeleton, followed by coating with a halloysite nanotube (HNT)/polyvinyl alcohol (PVA)/polypyrrole (PPy) film via rapid freezing. The CS framework provides shape stability, enhances thermal conductivity (0.483 W m −1 K −1 ), and enables efficient electro-thermal conversion via Joule heating. The HNT/PVA/PPy coating ensures excellent leakage resistance (100 wt% retention after heating at 100 °C) and boosts broadband solar absorption (98.0% average absorbance), leading to a high photothermal conversion efficiency of 96.48%. Moreover, when integrated with a thermoelectric generator (TEG), PEG@HCS-85 serves as a thermal buffer that stabilizes the temperature gradient, enabling sustained power generation even after illumination ceases (maximum power density 33.9 W m −2 under 3 kW m −2 with water cooling). The composite also exhibits good thermal cycling stability after 1000 cycles. This work demonstrates a rational design of a biomass-based, multifunctional PCM that combines efficient thermal storage with active multifunctional energy conversion, offering promising potential for solar thermal management, waste heat recovery, and round-the-clock renewable energy utilization.
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危险品化学品经营许可证（带存储）