MATERIALS RESEARCH BULLETIN
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2026
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IF 5.7
Hui Zeng,Xiaolang Fan,Yangbo Wang,Huaiyong Li
Lanthanide NIR-II luminescence free from thermal quenching is attractive for various applications at elevated temperatures. Here, we present a thermal enhancement of Er 3+ NIR-II luminescence based on the synergy of phonon assisted Er 3+ -Er 3+ cross relaxations and controllable Er 3+ -Ho 3+ energy transfer. The lattice expansion of NaYGeO 4 olivine phosphor upon heating (298–823 K) suppresses the Er 3+ -Ho 3+ energy transfer and leads up to 46.1 times enhancement of Er 3+ NIR-II luminescence under 379 nm excitation. The NIR-II luminescence evolution as increasing temperature allows dual-mode ratiometric thermometry, i.e., luminescence intensity ratios (LIRs) based on Er 3+ 4 I 13/2 Stark sublevels and on Er 3+ 4 I 13/2 and Ho 3+ 5 I 6 levels. Obtained relative sensitivities above 0.46% K ‒1 over a broad temperature range of 298–673 K with a maximum of 2.32% K -1 suggest NaYGeO 4 :Er 3+ /Ho 3+ phosphor as a promising NIR-II luminescence thermometer. Moreover, this research offers an available perspective for designing thermal-enhanced NIR luminescence in ordinary thermal expansion materials.
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高影响因子
VACUUM
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2026
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IF 3.9
Longxun Teng,Xin Li,Yuanxin Chunyu,Jiaxiang Liang,Xinyue Shao,Haiqing Sun,Xiaoyuan Zhan,Weiwei Zhang,Rui Liu,Jianxu Ding,Huiling Zhu
This study presents a water vapor-assisted solid-state sintering strategy to fabricate CsPbI 3 @SiO 2 perovskite composites. Through high humidity and temperature, CsPbI 3 nanocrystals are efficiently encapsulated within a SiO 2 matrix, resulting in dramatically enhanced stability. The composite retains over 85 % of its initial luminescence after 360 days in ambient conditions and demonstrates excellent resistance to polar solvents and acids. Due to its high stability, the composite exhibits promising performance in white light-emitting diodes (WLEDs) and information encryption applications, providing a viable pathway toward practical perovskite-based devices.
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POLYMER
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2026
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IF 4.5
Zhulu Xie,Dachuan Zhang,Jiawei Jiang,Yuxiao Zhang,Wen-cong Xu,Shuofeng Liang,Si Wu
Photoresponsive azobenzene-containing polymers (azopolymers) exhibiting photoinduced reversible solid-to-liquid transitions show promise for healable materials, reversible adhesives, and nanoimprint lithography. However, balancing robust mechanical properties with efficient photoreponsiveness of azopolymers remains challenging. This work demonstrates a molecular design strategy that combines ring-opening metathesis polymerization (ROMP) to achieve high-molecular-weight entangled azopolymers, with tail-group engineering to modulate mechanical properties and photoinduced reversible solid-to-liquid transitions. Three azopolymers (P1, P2, P3) featuring varied alkyl tail lengths were synthesized via ROMP, resulting in narrow molecular weight distributions and high degrees of polymerization. All three azopolymers exhibit reversible cis - trans photoisomerization. Solid trans azopolymers transform into liquid cis azopolymers through UV-induced trans -to- cis isomerization. Conversely, liquid cis azopolymers revert to solid trans azopolymers via visible light-induced cis -to- trans isomerization. Longer alkyl tails reduced the viscosity of cis azopolymers, enhancing photoinduced solid-to-liquid transition efficiency. Mechanical properties critically depended on azobenzene group aggregation states and polyethylene-like glass transitions governed by alkyl tail length. Consequently, tail-length design enables tuning of tensile strength, elongation, and photoinduced healing capabilities in freestanding films of azopolymers. This study establishes design principles for achieving robust mechanical properties and photoinduced reversible solid-to-liquid transitions simultaneously in azopolymers.
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Journal of Energy Chemistry
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2026
·
IF 14.9
Hanwei Hu,Leilei Sun,Guosheng Duan,Sinan Zheng,Zhean Bao,Dinghao Chen,Yang Wang,Jingyun Huang,Zhizhen Ye
Electrochemical activation (ECA) represents a powerful approach to unlock the high-capacity potential of vanadium oxide cathodes for aqueous zinc-ion batteries (AZIBs). The role of water in ECA extends beyond surface reactions, yet its underlying bulk-phase activation mechanisms remain largely unexplored. This work uncovers a previously overlooked stagewise ECA process regulated by the bulk-phase water penetration, involving concentrated oxidation and subsequent hydrolysis-induced phase transformation. Through a synergistic dual-ion engineering strategy, a model NaAl-VO 2 nanoflower precursor is constructed, where Al 3+ and Na + cooperatively tailor the morphology and (001) layer spacing. This design unlocks deep water reaction in VO 2 , triggering a pore-forming cascade reaction fundamentally distinct from traditional surface-limited activation. The bulk reaction mechanism facilitates rapid formation of highly active NaAl-H x V 2 O 5 nanonetworks, leading to a high specific capacity (571.3 mA h g −1 at 0.1 A g −1 ) and enhanced rate performance (239.5 mA h g −1 after 10,500 cycles at 20 A g −1 ). Ion-synergized regulation of water reaction depth can serve as a universal strategy for developing high-performance electrodes in aqueous electrolyte batteries.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 9
Jiujing Xu,Cheng Chen,Rukang Jiang,Bisheng Li,Leihong Zhao,Liguo Shen,Hongjun Lin
Polyamide nanocomposite membranes are promising for seawater desalination, yet the molecular mechanisms governing water and solute transport remain unclear. Here, we synthesized a conjugated microporous polymer (IPA–PPA) and embedded it within the interlayer of polyamide thin-film nanocomposite (CMP–TFN) membranes. Using transition state theory and the Eyring equation, we deconvoluted intrinsic water and ion permeability into enthalpic and entropic contributions to probe the molecular basis of water–salt selectivity. The partially protruding, intrinsically microporous IPA–PPA generated additional nanoscale transport channels and modified polyamide morphology and surface charge, thereby lowering mass-transfer resistance. As a result, CMP–TFN membranes achieved high Na 2 SO 4 rejection (98.4 %) alongside enhanced water flux, antifouling performance, and long-term stability. Transition state analysis revealed that increased water transport was driven by higher activation entropy ( ΔS ‡ ), whereas stronger solute rejection correlated with elevated activation enthalpy ( ΔH ‡ ). The synergy between enlarged pore structures (increasing ΔS ‡ ) and stronger surface charge (increasing ΔH ‡ ) collectively modulated ion transport, ultimately improving water–salt selectivity. Our findings demonstrate that enthalpy–entropy interplay underpins water–ion discrimination in polyamide nanocomposite membranes, enabling high selectivity.
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NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.5
Weina Zhang,Hongji Li,Yuming Liu,Mengyang Xu,Dandan Wang
In this study, array structure SERS substrate was designed by using the polydimethylsiloxane (PDMS) as the support membrane and loaded Au@Ag@Au nanoparticles on its surface. By the three-phase self-assembly procedure, the Au@Ag@Au nanoparticles could smoothly transferred on the PDMS membrane and presented array structure, which could significantly promote the SERS sensitivity. Furthermore, molecularly imprinted polymers (MIPs) were coated on the surface of membrane to promote the selective detection property. In order to protect the chemical structure of MC-LR molecules, the Au@Ag@Au/PDMS molecularly imprinted membranes (AAAP-MIMs) were synthesized by the photo-initiated polymerization. It was demonstrated from the results that the AAAP-MIMs exhibited high SERS sensitivity, stability, and uniformity. This investigation presented a novel analysis procedure applied into the toxic microcystin selective detection.
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ENVIRONMENTAL RESEARCH
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2026
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IF 7.7
Bo Tian,Jianwei Zhang,Wenze Li,Jinfeng Li,Na Zhou,Zhigang Li,Wa Gao,Nan Zhang,Hongtao Zhao
In this study, an innovative synergistic strategy combining radiation-induced graft polymerization and the cyanohydroxylamine method was employed to successfully construct a polyacrylamide/polybutadiene/polyacrylonitrile-amidoxime (PAM/PB/PAO) double-network (DN) hydrogel toughened by nano-polybutadiene rubber. Leveraging the DN topological design and rubber nano-phase reinforcement, this material exhibits exceptional fatigue performance (with a compressive stress retention rate of >90 % after 30 cycles of 80 % strain) and a high uranium adsorption capacity of 763.40 mg g −1 . In solutions containing seven competing ions, its distribution coefficient reaches 13,750.90 mL g −1 , and the adsorption efficiency remains above 91.10 % after 4 adsorption cycles. Density Functional Theory (DFT) calculations reveal that the amidoxime group serves as the primary adsorption site, which can form a multi-dentate chelating structure with the amide group. Additionally, the Intrinsic Bond Strength Index-Molecular Hamiltonian (IGMH) and Electron Density Analysis-Natural Orbital for Chemical Valence (EDA-NOCV) analyses further confirm the electrostatically dominated interaction mechanism. This research provides a novel insight into the design of high-strength and tough adsorbent materials, demonstrating promising application prospects in the field of uranium recovery from nuclear wastewater.
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PubMed
高影响因子
Foods
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2026
·Vol. 15
·期 2
·200
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IF 5.1
Shengmin Qi,Haibin Ren,Haiqing Yang,Lianhui Zhang,Min Zhang
This study aimed to analyze the volatile organic compounds (VOCs) for different rice aroma types using sensory evaluation, headspace solid-phase microextraction gas chromatography mass spectrometry (HS-SPME-GC-MS), and gas chromatography-ion mobility spectrometry (GC-IMS) techniques, and to explore the material basis for the flavor differences. Based on the sensory evaluation results, rice aroma was categorized into three types, distinguished by their unique aroma compounds. Type A was characterized by a prominent sweet, popcorn aroma, type B by a more prominent cereal and starchy flavor, and type C by a more complex aroma. Untargeted metabolomics analysis using HS-SPME-GC-MS identified and characterized 74 volatile compounds. A comparison of A versus B versus C revealed 8 key aroma compounds, primarily alkanes, aldehydes, ketones, alcohols, and heterocyclic compounds. (E)-2-Octenal, 6-Undecanone, 2-Acetyl-1h-pyrrole, and P-menthan-1-ol in type A gave it a better sweet aroma, Dodecane, 2,6,10-trimethyl-, 1-Octen-3-one, and 2-Methyldecane in type B gave it a better starchy and cereal flavor. 2-Acetyl-1h-pyrrole, Heptacosane, and 1-Propanol in type C contributed to a complex aroma. GC-IMS analysis showed that the fingerprints of rice with different aroma types were significantly different. The VOCs of aroma type A contained (+)-limonene, 2-methylpyrazine, 2-pentanone, ethyl butanoate, n-pentanal, styrene, 1-butanol, 3-methyl-, acetate, 1-hexanal, 1-pentanol, and 2-heptanone, which gave it a better sweet aroma. The VOCs of aroma type C contained 1-octen-3-ol, 2,6-dimethyl pyrazine, 2-acetylpyridine, and ethyl hexanoate, which gave it a better complex aroma.
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Nanoscale
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2026
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IF 5.1
Haoqiu Ding,Zhanpo Han,Hang Li,Chang Shu,Jiahao Lu,Yue Gao,Xin Ming,Kaiwen Li,Yiwei Zhang,Dan Chang,Chao Gao,Zheng Li,Senping Liu,Zhen Xu
The rapid advancement of wearable healthcare monitoring and athletic performance tracking devices has intensified the demand for high-conductivity flexible sensors with high sensing performance. Despite their excellent electrical conductivity, graphene fibers exhibit limited flexibility, constraining their applications in flexible sensors. Here, we produced ultrafine graphene nanofibers via electrospinning of nano-sized graphene oxide sheets, significantly improving the flexibility of graphene fibers and corresponding non-woven fabrics. With a diameter of 66 nm, which is two orders of magnitude thinner than common graphene fibers, the non-woven fabrics made of randomly distributed graphene nanofibers exhibited exceptional flexibility,obtaining the sensors with bending flexibility, wide strain range, low detection limit and good cycling stability. By capturing resistance signals from sensors located at the throat, finger joints, knees, and other sites, we achieved effective word recognition and human motion monitoring. This work establishes a method for fabricating ultrafine fibers from two-dimensional materials, greatly advancing the development of wearable devices
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Energy Materials
·
2026
·Vol. 6
·期 1
·N
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IF 11.2
Hanzhong Cui,Junpeng Fan,Jin Zhang
This study presents a novel slit evaporation self-assembly method for fabricating freestanding sulfuric acid-treated reduced graphene oxide/commercial graphene films (S-ATrGO/CG). The unique capillary slit-induced self-assembly process facilitates the alignment and stacking of graphene flakes, resulting in a well-ordered, laminated film. The treatment of graphene oxide (GO) with sulfuric acid facilitates the ring-opening of inert functional groups, converting them into active functional groups. Sulfuric acid-treated graphene oxide (ATGO) can serve as an effective binder for adhering commercial graphene flakes. X-ray photoelectron spectroscopy was used to quantitatively analyze the oxygen-containing functional groups in GO, ATGO, and S-ATrGO/CG. A series of electrochemical tests were conducted to investigate the behavior of the S-ATrGO/CG films, which exhibited well-defined redox peaks, indicating the contribution of unreduced oxygen-containing groups to redox reactions and pseudocapacitance. The S-ATrGO/CG films exhibit superior electrochemical performance, with an ultra-high area-specific capacitance of 1,589.78 mF cm-2 at a scan of 5 mV s-1 and an impressive initial capacitance retention of 99.80% after 20,000 cycles at a current density of 50 mA cm-2. This study highlights the potential of S-ATrGO/CG films as high-performance electrodes for supercapacitors, contributing to the advancement of sustainable energy storage systems.
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Nanomaterials
·
2026
·Vol. 16
·期 2
·128
·
IF 4.3
Bo Li,Nanhui Zhang,Yuxing Lei,Mengmeng Zhu,Haitao Yang
Electric-field-sensitive dielectrics play a crucial role in electric field induction sensing and related capacitive conversion, with interfacial polarization and charge accumulation largely determining the signal output. This paper introduces graphene/transition metal dichalcogenide (TMD) (MoSe 2 , MoS 2 , and WS 2 ) heterojunctions as functional fillers to enhance the dielectric response and electric-field-induced voltage output of flexible polydimethylsiloxane (PDMS) composites. Density functional theory (DFT) calculations were used to evaluate the stability of the heterojunctions and interfacial electronic modulation, including binding behavior, charge redistribution, and Fermi level-referenced band structure/total density of states (TDOS) characteristics. The calculations show that the graphene/TMD interface is primarily controlled by van der Waals forces, exhibiting negative binding energy and significant interfacial charge rearrangement. Based on these theoretical results, graphene/TMD heterojunction powders were synthesized and incorporated into polydimethylsiloxane (PDMS). Structural characterization confirmed the presence of face-to-face interfacial contacts and consistent elemental co-localization within the heterojunction filler. Dielectric spectroscopy analysis revealed an overall improvement in the dielectric constant of the composite materials while maintaining a stable loss trend within the studied frequency range. More importantly, calibrated electric field induction tests (based on pure PDMS) showed a significant enhancement in the voltage response of all heterojunction composite materials, with the WS 2 -G/PDMS system exhibiting the best performance, exhibiting an electric-field-induced voltage amplitude 7.607% higher than that of pure PDMS. This work establishes a microscopic-to-macroscopic correlation between interfacial electronic modulation and electric-field-sensitive dielectric properties, providing a feasible interface engineering strategy for high-performance flexible dielectric sensing materials.
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Catalysts
·
2026
·Vol. 16
·期 1
·103
·
IF 4
Hui Tang,Jiateng Hu,Qianqian Yang,Gang Yu
In the present study, glass/ceramic hybrid fibers were chosen as a paper matrix, which effectively balance toughness and high-temperature resistance for soot combustion applications. In order to address the issue of unevenness in the performance of paper-type catalysts caused by the differences in the dispersion behavior of glass fibers and ceramic fibers in water, a facile foam-forming technology was proposed. The obtained glass fiber/mullite composite paper with various mass ratios (1:1, 2:1, 3:1, 4:1, and 5:1) exhibit high evenness, and better high-temperature resistance than the pure glass fibers. After impregnating K-Mn active ingredients, 15K5Mn-GFF-3G1C (GF/CF = 3:1) demonstrates high tensile strength, excellent catalytic activity (T50 = 388 °C), reusability (five cycles), and high-temperature stability (800 °C, 12 h).
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