ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Sheng Wei,Wenjun Kuang,Siyuan Tian,Feng Wang,Rui Gong,Fufang Xu,Baofu Ding
Graphene-based liquid crystals have ultra-high electric responsivity and hold great promise in fabricating light modulators with ultra-low-field driving and macroscopic centimeter-scale electrode spacing. However, their narrow bandgap and uncontrollable electroresponse severely restrict their modulated spectral region and performance, especially for the visible and ultraviolet regions. Here, we report a fluorographene liquid crystal, which has a wide bandgap of ∼5.5 eV and controllable electroresponse from modulation of fluorine doping ratio, and exceptional stability under deep-ultraviolet exposure. As a consequence, a fluorographene liquid crystal-based deep-ultraviolet electro-optic modulator is fabricated with negligible degradation after 5 h of ultraviolet irradiation under 0 and 12 V m −1 electric fields. The fluorographene liquid crystals expand the family of graphene liquid crystals and pave the way for broadening their applications in a variety of scenarios, as conceptually demonstrated with integrated sea-land-air solar-blind communication for smart port applications.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Tao Zhang,Chunguang Chen,Jia Liu,Muyuan Liu,Xingcai Wu,Xuewen Hua,Da-xia Zhang,Feng Liu
The insufficient understanding of the diffusion-reaction-polymerization coupling in membrane formation dynamics hinders the application of interfacial polymerization membranes in drug delivery and membrane separation. Here, the relationship between the hydrophilicity of the oil phase and water mass transfer behavior is taken as the breakthrough point. From the perspective of diffusion, the water mass transfer flux is positively correlated with the membrane thickness. From the perspective of polymerization, under the diffusion-limited aggregation model, the polymerization of oligomers leads to uneven membrane thickening. This accounts for the paradoxical observation that thicker membranes exhibit lower encapsulation and rejection rates. Building on a comprehensive understanding of membrane formation dynamics, an AI model that can predict performance with high precision was developed. Furthermore, universal regulation strategies can increase the encapsulation efficiency and rejection rate by 32.3–54.8% and 6.8–23.9%, respectively. This study provides both theoretical basis and technical approaches for designing high-performance microcapsule and separation membrane.
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ChemCatChem
·
2026
·Vol. 18
·期 3
·e01581
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IF 3.9
Wuyang Xiao,Fuhe Le,Rui Sheng,Xue Yang,Xueying Cao,Wei Jia
Perovskites with tunable compositions and structures are desirable electrocatalysts for water electrolysis. However, achieving efficient hydrogen evolution reaction (HER) in alkaline media using perovskite-based catalysts remains a significant challenge. Herein, a Cu-doped La 0.5 Ba 0.5 CoO 3–δ perovskite was synthesized via a sol-gel method, which exhibits enhanced HER electrocatalytic activity through the construction of dual active sites. X-ray photoelectron spectroscopy (XPS) and x-ray absorption fine structure (XAFS) analyses reveal that Cu doping simultaneously induces the oxidation of Co and the formation of oxygen vacancies, establishing a synergistic charge compensation between the dual active sites. Specifically, oxygen vacancies promote water dissociation by enhancing adsorption, while high-valence Co species reduce charge transfer resistance, thereby facilitating electron transfer during HER. As a result, the optimized La 0.5 Ba 0.5 Co 0.8 Cu 0.2 O 3–δ (LBCC 0.2 ) achieves low overpotentials of 160 mV and 228 mV at current densities of 10 and 100 mA·cm −2 , respectively. Moreover, the catalyst demonstrates outstanding stability, maintaining 200 h for HER operation, outperforming commercial Pt/C. This study highlights the advantage of dual active sites in boosting the intrinsic electrochemical activity and underscores the potential of Cu-doped perovskites for efficient hydrogen production. Graphical A Cu-doped La 0.5 Ba 0.5 CoO 3-δ perovskite (LBCC 0.2 ) was synthesized using a sol–gel method for alkaline hydrogen evolution reaction (HER). The resulting dual active sites, comprising Co species and oxygen vacancies, collectively enhance the electrical conductivity and accelerate HER kinetics of LBCC 0.2 . This leads to a low overpotential of 160 mV at a current density of 10 mA·cm −2 and an excellent stability over 200 h.
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ChemElectroChem
·
2026
·Vol. 13
·期 2
·e202500382
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IF 3.5
Hongjie Song,Mengjiao Liu,Dan Li,Ran Chen,Qiong Zhou
The development of high-performance, low-platinum (Pt)-loading catalysts for the oxygen reduction reaction (ORR) remains a critical challenge in proton exchange membrane fuel cells. Zirconium dioxide-carbon composite materials are prepared using the Zr-based metal-organic framework UiO-66 as a precursor. The support structure is modulated by controlling the pyrolysis conditions (700 °C, 800 °C, and 900 °C). Platinum nanoparticles are deposited onto the ZrO 2 -carbon composite framework using ethylene glycol as the reducing agent, yielding low-Pt-content Pt/U-X catalysts (X = 700, 800, 900). The findings demonstrate that the Pt/U-X catalysts exhibit superior electrocatalytic activity compared with commercial Pt/C catalysts. Pt/U-800 displays the highest mass activity (796.9 mA mg Pt −1 ), which is 3.64 times higher than commercial Pt/C (219.2 mA mg Pt −1 ). Furthermore, Pt/U-800 achieves 1250 mA cm −2 at 0.6 V and reaches a peak power density of 1820 mW cm −2 in fuel cell tests. The one-step composite of ZrO 2 and carbon, formed through the pyrolysis of UiO-66, facilitates an interfacial structure between ZrO 2 and Pt, optimizing the hierarchical pore structure of the support, and providing a promising, cost-effective alternative to traditional Pt/C catalysts for fuel cell cathod. Graphical ZrO 2 –carbon composite supports were derived from UiO-66 (a Zr-based metal–organic framework, MOF) by pyrolysis. Pyrolysis temperature regulates graphitization and oxygen vacancies (O v ), strengthening Pt–support interactions. The optimized Pt/U-800 catalyst forms a Pt δ+ –O v –Zr 3+ interface and exhibits enhanced oxygen reduction reaction (ORR) activity with higher half-wave potential (E 1/2 ) and mass activity (MA) than commercial Pt/C.
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JOURNAL OF FOOD SCIENCE
·
2026
·Vol. 91
·期 2
·e70821
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IF 4.1
Zeynep Karahaliloğlu,Baki Hazer
Unlike conventional preservation methods that passively store food, active packaging materials proactively prevent microbial contamination and, when combined with polyphenols, can also serve as intelligent systems for freshness monitoring. In this study, polypropylene (PP)-based membranes incorporating curcumin (Cur) and quercetin (Quer) were developed and characterized to evaluate their potential use in food packaging applications. The membranes exhibited low water vapor permeability, indicating strong barrier properties. Among the formulations, the PP-Cur-A2 (Cur-loaded PP-A2, where A2 refers to chlorinated polypropylene (PP-Cl) obtained from Sigma-Aldrich) membrane showed superior mechanical performance (tensile strength: 24.10 ± 1.06 MPa; elongation at break: 378%) and achieved complete curcumin release within 20 days. Importantly, the membranes displayed distinct color transitions under different pH conditions, confirming their functionality as pH-responsive indicators. In addition, when tested both with fresh shrimp in Petri dishes and in aqueous ammonia environments, the membranes exhibited visible and progressive color changes in response to spoilage-related volatile compounds. Overall, the developed membranes demonstrated efficient bioactive release, excellent barrier characteristics, and reliable colorimetric indicator functionality, underscoring their promise for sustainable and intelligent food packaging applications.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Yunxiang Luo,Tongtong Zhang,Yang Qin,Fujie Zhao,Hongchen Wang,Guohua Liu,Lu Qi
Bisphenol A (BPA), an emerging wastewater contaminant, poses significant ecological risks even in trace concentrations, necessitating advanced removal strategies. In this study, a novel γ-Fe2O3-embedded nitrogen-doped polydopamine-derived carbon composite adsorbent (Fe-PC) was synthesized using polydopamine as a self-nitrogen-doped carbon precursor rather than a conventional shell material. The Fe-PC adsorbent exhibited a high BPA adsorption capacity of 423.86 mg g–1 and rapid equilibrium within 120 min. Adsorption kinetics followed a pseudo-second-order model (R2 = 0.999), while equilibrium data aligned with the Langmuir isotherm, indicating monolayer chemisorption is the dominant mechanism. Thermodynamic analysis confirmed that the process is spontaneous and endothermic. Mechanistic investigations revealed that γ-Fe2O3 introduces abundant active sites, enabling synergistic adsorption via chemical bonding, π–π interactions, hydrophobic interactions, and Fe3+ coordination with BPA hydroxyl groups. Combining high adsorption capacity, rapid kinetics, and stability, Fe-PC offers a promising strategy for efficiently removal of emerging contaminants from water.
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ENERGY & FUELS
·
2026
·
IF 5.3
Zhen Tao,Bauyrzhan Sarsenbekuly,Wanli Kang,Wenwei Wu,Guoqing Zhang,Hongbin Yang,Yuqin Tian,Yaoguo Wang,Shouzun Guo,Dong Liu
To tackle the challenges of high viscosity, poor fluidity, and low recovery rates in heavy oil, a novel comb-like polymer viscosity reducer (GO-Z) based on nanographene oxide (GO) was developed. GO was first functionalized with a silane coupling agent and then grafted with long-chain alkyl (C16DMAAC) and polyether (APEG-8) groups. The results show that GO-Z exhibited superior emulsification, dispersion, and viscosity reduction properties under microagitation conditions (simulating the low-shear conditions of real reservoirs), achieving over 94% viscosity reduction at a concentration of 0.3 wt %. Physical simulation flooding experiments further demonstrated that GO-Z effectively improved heavy oil recovery at various injection rates, with the highest increase reaching 11.61%. This study opens up a clear and promising path for the application of functionalized GO in the emulsification and viscosity reduction of heavy oil cold production.
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LANGMUIR
·
2026
·
IF 4.4
Tianle Li,Liangliang Yan,Jingyi Yu,Yuxiu An
The efficient recovery of heavy oil in hypersaline reservoirs (>100,000 mg·L–1 TDS) remains a critical challenge due to the rapid structural collapse of conventional hydrophobically associating polymers. Addressing this limitation, we propose a “High-Density Weak Hydrophobe” strategy. A novel amphiphilic terpolymer (AMDA) was synthesized via free-radical aqueous solution polymerization, featuring a remarkably high incorporation (14.3 mol %) of the short-chain, sterically bulky monomer diacetone acrylamide (DAAM). Unlike traditional polymers containing long-chain alkyl groups (e.g., C16-HMPAM) that undergo catastrophic “salting-out” and coiling at high salinity, AMDA constructs a dense yet reversible dynamic network, retaining over 81% of its viscosity at 90 °C in 100,000 mg·L–1 brine. This structural resilience enables the formation of ultrastable O/W emulsions, achieving a heavy oil viscosity reduction rate exceeding 95%. Core flooding experiments demonstrated an incremental oil recovery of 34.6% of the original oil in place (OOIP) at 65 °C. Furthermore, microfluidic visualization and zeta potential analysis revealed a synergistic EOR mechanism: beyond macroscopic mobility control, AMDA facilitates in situ emulsification and induces a wettability reversal from oil-wet to water-wet by establishing a robust electronegative hydration layer on the rock surface. This study validates the “High-Density Weak Hydrophobe” paradigm as a superior alternative to conventional strong-hydrophobe systems, offering a robust solution for enhanced oil recovery in harsh saline environments.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Ze-Long Bao,Wen-Hao Geng,Yu-Long Guo,Han-Lin Zhou,Zhi-Liang Liu,Ke Hu,Chun-Hao Chang,Tong-Yu Li,Yue-Xin Wang,Hong-Zhang Geng
Electromagnetic waves endanger precision instruments and human health, driving the demand for multifunctional flexible transparent conductive films (FTCFs) with integrated electromagnetic interference (EMI) shielding and electric heating to ensure reliable microelectronic performance in extreme environments beyond conventional materials’ limits. However, current FTCFs based on carbon nanomaterials, metal nanowires, or 2D materials still suffer from insufficient oxidation resistance, weak adhesion to substrates, and performance degradation under complex conditions, limiting their practical deployment. To address these, we designed the films, which involved constructing silver nanowire/carbon nanotubes/silver nanoparticle (AgNW/CNT@Ag) conductive networks on polyethylene terephthalate (PET) via spray and spin coating, followed by transferring them into glycerol-modified, sodium alginate (SA)-poly(vinyl alcohol) (PVA) composite layers. This structure leverages AgNPs grafted on CNTs, forming resistor-capacitor-like configurations to enhance EMI shielding via improved electromagnetic wave absorption. The embedded design, combined with CNT coverage over AgNW, strengthens the adhesion and oxidation resistance by blocking oxygen. Additionally, SA-induced surface wrinkles boost conductivity and wave reflection, while the conductive network enables efficient Joule heating. The resulting film exhibits performance: 9.46 Ω/sq sheet resistance @ 57.7% transmittance, a figure-of-merit (FoM) of 6.31, an EMI shielding effectiveness of 31.42 dB, a saturation temperature of 93.1 °C at 6 V, a relative resistance change (RRC) of 0.92 after 60 oxidation cycles, and an RRC of 0.36 after 1000 bending cycles. This work provides a promising structural design and material strategy for FTCFs, advancing their commercialization in multifunctional electronic applications.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Xue Jiang,Zhentao Du,Xiaoming Mo,Sheng Cao,Jinju Zheng,Bingsuo Zou,Jialong Zhao
Two-dimensional (2D) perovskites are highly promising optoelectronic semiconductor materials, yet their integration into microdevices is hindered by the difficulty in simultaneously achieving high crystallinity, regular shape, uniform size, and good processability during the synthesis process. Here, we report a substrate-free, room-temperature antisolvent recrystallization strategy using a mixture of toluene and green alcohols to address this challenge. The core of our approach is antisolvent additive engineering, where alcohols such as isopropanol guide anisotropic growth of crystals, thereby enabling the large-scale production of uniform microplates. The versatility of this method is fully demonstrated in the preparation of 2D (PEA)2Pb(Br,I)4 and (BA)2PbBr4 perovskite microplates. Under the optimized toluene/isopropanol volume ratio (21:4), (PEA)2PbBr4 single-crystal plates with a uniform rectangular shape and an average lateral size of 9.4 μm can be produced, which exceeds the size of most previously reported 2D perovskite micro/nanosheets. Furthermore, XRD analysis reveals that the synthesized (PEA)2PbBr4 microplates exhibits excellent stability even after exposure to air for 16 weeks. In particular, the as-constructed photodetectors based on (PEA)2PbBr4 microplates demonstrate excellent performance, with a dark current of 6.69 pA, a responsivity of 1.21 A/W, a switching ratio of 20.5, a detectivity of 1.75 × 1012 Jones, and an external quantum efficiency of 400%. This work provides a scalable approach for fabricating uniform 2D perovskite microplates of diverse compositions, thereby facilitating the exploration of high-performance, low-cost and integrated optoelectronic microdevices.
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ACS Applied Engineering Materials
·
2026
·
IF 3.5
Han Sun,Jiming Su,Hongru Jiang,Chongqing Wang,Yingshuang Zhang,Hui Wang
Effective thermal management and electromagnetic interference (EMI) shielding are critical for the reliability of miniaturized electronic devices. However, developing multifunctional composites using sustainable, low-cost mineral fillers remains a challenge due to their intrinsically limited phonon transport and dielectric loss capabilities. In this study, we innovatively proposed and achieved the phase transformation of pyrrhotite from the monoclinic (mPyr) to the hexagonal (hPyr) structure at 450 °C for the first time. Unlike the mPyr, the hPyr phase possesses a more ordered and stable crystal structure, which significantly suppresses phonon scattering and enhances intrinsic thermal conductivity (TC). To validate this, hPyr was modified with polysulfide bonds and incorporated into a silicone rubber (RTV-2SR) matrix. At a loading of 35 wt %, the hPyr/RTV-2SR composite achieved a remarkable 625% improvement in TC (1.46 W/(m·K)) over pure RTV-2SR and a 18.7% enhancement compared to mPyr/RTV-2SR (1.23 W/(m·K)), proving the superiority of the phase transformation strategy. Simultaneously, the hPyr/RTV-2SR composite possessed a resistivity exceeding 1013 Ω·cm while delivering a high EMI shielding performance of 39.6 dB primarily attributed to absorption loss. The incorporation of conductive mineral phases combined with optimized filler distribution endowed the composite with effective EMI shielding capability. In addition, the stress–strain analysis revealed that the hPyr/RTV-2SR composite achieved a tensile strength of 2 MPa. This work presents a promising strategy for the high value utilization of vulcanized mineral tailings while contributing to the development of multifunctional and sustainable materials.
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ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Hangjian Zhou,Jianwei He,Xuejiang Li,Jin Zhai,Xia Fan
Development of efficient artificial light-driven ion pumps is crucial for solar energy harvesting, yet remains fundamentally constrained by severe carrier recombination in photoactive materials. To overcome this fundamental limitation, we design a carbon nitride-carbon nanotube composite membrane that utilizes an interfacial Schottky junction for enhanced charge separation. The charge-regulating behavior of Schottky junctions effectively inhibits photoinduced charge recombination, thereby augmenting charge density asymmetry across the membrane. The resulting robust built-in electric field significantly amplifies light-driven force beyond single-component systems. Under 200 mW cm–2 illumination, the composite membrane demonstrates exceptional ion pumping performance, enabling reverse ion transport against a 2000-fold concentration gradient. Compared to homogeneous carbon nitride membranes, it exhibits a 233% enhancement in gradient tolerance and a 293% increase in power output. This work presents a Schottky junction engineering strategy for high-performance light-driven ion pumps, paving the way for advanced solar energy conversion and optoelectronic applications.
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