Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 44
·37953-37961
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IF 9.5
Yao Dai,Yubo Luo,Yingchao Wei,Tianshun Xiong,Chengwei Sun,Wenjie Shu,Guanzheng Luo,Linyao Wu,Shuhui Zhang,Qinghui Jiang,Xin Li,Zheng Ma,Yao Luo,Yan Liu,Dan Zhang,Junyou Yang
Inorganic plastic thermoelectric materials have attracted much attention for breaking the brittle bottleneck of traditional inorganic thermoelectric materials. The Ag2(S, Se, Te) system is one of the most novel and promising thermoelectric semiconductors. To enhance its thermoelectric performance, substitution of Na for Ag is adopted to modulate the electrical and thermal transport properties of Ag2S1/3Se1/3Te1/3, through enhancing phonon scattering and effective mass. It enables us to achieve a record high average power factor (PF) of 7.4 μW cm−1 K−2 in the temperature interval of 300–500 K and a room-temperature thermoelectric figure of merit (ZT) of 0.50 and a peak ZT of 0.84 at 500 K in Ag2(S, Se, Te), respectively. In addition, the slip mode of Ag2S1/3Se1/3Te1/3 plastic deformation is also revealed for the first time, in which the crystal slip behavior is dominated by the {112}〈111〉 slip regime, instead of the conventional {110}〈111〉 view. The obtained high thermoelectric performance, as well as the maintained plastic performance, shows broad application prospects in waste heat recovery and wearable devices.
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POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70678
·
IF 3.8
Yu Zeng,Lu Tang
Dielectric elastomer has attracted much attention for its promising application in soft robots, actuators, and generators. Nevertheless, fluorosilicone rubber (FSR), as a typical dielectric elastomer matrix, possesses inherently low dielectric permittivity, severely limiting its electromechanical actuation performance. To address this issue, two-dimensional (2D) MXene nanosheets and zero-dimensional (0D) Ag nanoparticles were incorporated into FSR via mechanical mixing and hot-pressing to prepare FSR/MXene/Ag composites. Results show that MXene and Ag were dispersed well in the FSR matrix and the composites were thermally stable up to 390°C. A relatively high dielectric permittivity of 16.63 (2.49 times of pure FSR) was achieved at 10 3 Hz for the composite with 1.2 phr (parts per hundred of rubber) MXene and 3.2 phr Ag, while the loss tangent remained below 0.012. This can be attributed to the synergistic effects of the hybrid fillers where the 0D Ag nanoparticles effectively suppress the agglomeration of 2D MXene nanosheets, while the heterogeneous interfaces between MXene/Ag and FSR significantly enhance interfacial polarization. Furthermore, the FSR/MXene/Ag composites not only show improved tensile strength and elongation at break with decreased elastic modulus, but also exhibit enhanced electromechanical sensitivity, achieving a large electromechanical strain of 16.05% (205% increment of pure FSR) under an electric field of 40 kV mm −1 . This work provides a feasible strategy for designing dielectric elastomers with enhanced electromechanical performances.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Qinghua Liu,Leihuan Mu,Hui Liu,Jiehui Li,Ruizhe Zhang,Jinmei He,Lei Zhu,Mengnan Qu
A fibrous electronic textile couples passive thermal management with multimodal physiological sensing. • Radiative cooling suppresses solar heat accumulation under outdoor conditions. • Decoupled pressure and temperature sensing enables reliable dual-parameter perception. • Hydrophobic fibrous surfaces provide self-cleaning capability against dust contamination. • The MPS enables simultaneous monitoring of pulse, respiration, skin temperature, and distress signals. In response to the impact of heat accumulation on the sensing reliability and wearing comfort of wearable sensors in hot outdoor environments, this study was inspired by the surface microstructure and multisensory perception characteristics of the tropical white beetle Cyphochilus . By integrating electrospinning and screen printing techniques, we developed a fiber-based multifunctional piezoresistive sensor (MPS) combining passive daytime radiative cooling, hydrophobic protection (WCA = 135.0 ± 0.4°), and pressure/temperature monitoring. The separated pressure and temperature sensing units enable signal decoupling, achieving sensitivities of 7.51 kPa −1 and − 1.3% °C −1 , respectively, for stable and simultaneous monitoring of carotid pulse, respiratory activity, and skin temperature. Meanwhile, the polylactic acid/calcined kaolin top layer provides passive thermal regulation, exhibiting a solar reflectance of 85.4% and a broadband infrared emissivity of 91.8%, achieving an approximately 4.0 °C reduction in surface temperature compared with ordinary white cotton fabric under outdoor sunlight exposure. This work provides a feasible strategy for integrating thermal management and multiparameter sensing in wearable electronics for complex environments. Download: Download high-res image (286KB) Download: Download full-size image
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 30
·41103-41112
·
IF 7.8
Sun Jiping,Zhang Hong,Wang Zhixing,Li Guangchao,Wu Bichao,Yang Sheng,Liu Min,Wang Jiexi
Developing acidic electrochemical CO 2 reduction reaction (CO 2 RR) systems can alleviate carbonate clogging in gas diffusion electrodes (GDEs), offering an efficient way to convert CO 2 at industrial-level current densities ( J > 200 mA cm –2 ). However, it comes at the cost of aggravating competitive hydrogen evolution reactions (HERs). Breaking this intrinsic selectivity–stability trade-off requires synergistic H 2 O/CO 2 management. As a central component of GDEs, the gas diffusion layer (GDL) critically governs gas (CO 2 )–liquid (H 2 O) transport balance. This work proposes a gradient pore-hydrophobicity cooperation strategy for synergistic H 2 O/CO 2 management to achieve efficient acidic CO 2 RR. Paired with commercial Ag catalysts, the Ag-GDEs exhibit an impressive CO Faraday efficiency of 97.26% at 400 mA cm –2 within a pH = 2.0 environment. Furthermore, in situ differential electrochemical mass spectrometry confirms the distinct mass transfer kinetics induced by GDL architectures. Lattice Boltzmann modeling simulations corroborate the effects of the gradient pore-hydrophobicity synergy on CO 2 and H 2 O distribution in GDLs. This work presents an effective approach to the rational design of GDLs and the collaborative liquid–gas management for efficient CO 2 RR.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xinzhen Ji,Yunlong Yang,Qinglin Zeng,Shuailing Lin,Qicong Zhou,Meng Wang,Fei Zhang,Weihong Chu,Qianli Liu,Niannian Wang,Zhenghao Xia,Zhuangzhuang Ma,Jibin Zhang,Xinjian Li,Zhifeng Shi
Two-dimensional tin (Sn)-based perovskite light-emitting diodes (PeLEDs), featuring pure-red emission and eco-friendly characteristics, show great potential in wide color-gamut displays. However, their electroluminescence performance still lags significantly behind that of the lead-based counterparts, primarily due to the challenges of fast crystallization rate and undesired self-oxidation of Sn 2+ to Sn 4+ . Here, we report a rational molecular design strategy using 3,5-difluorophenylhydrazine hydrochloride (2FPHCl), which provides both reduction and passivation functionalities. The fluorine substituents form hydrogen bonds with TEA + in TEA 2 SnI 4 to modulate the crystallization process, while the hydrazine group acts as a reductant to suppress Sn 2+ oxidation. Consequently, defects arising from fast crystallization and self-oxidation in tin-based perovskites are simultaneously mitigated. The optimized pure-red perovskite films exhibit a sixfold enhancement in photoluminescence quantum yield, along with more balanced carrier injection. As a result, the state-of-the-art pure-red PeLEDs achieve an external quantum efficiency of 11.7%, a Rec. 2020 color-gamut coverage of 99%, and a microsecond-scale response. This strategy further enables large-area devices with emitting areas up to 12.25 cm 2 and the first tin-based perovskite active-matrix displays integrated with a thin-film transistor backplane, which are capable of presenting clear cartoon images and videos.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Qiuyue Zhong,Siying Zhang,Yang Yang,Peilin Qing,Yuandong Qin,Phieraya Pulphol,Weishuang Fang,Huaicheng Xiang,Ying Tang,Liang Fang
In this work, a LiScO 2 microwave dielectric ceramic with high thermal stability was prepared by a conventional solid-state reaction method. X-ray diffraction combined with Rietveld refinement confirms the formation of a single tetragonal phase (space group I 4 1 /amd ) over a sintering temperature range 825–925 °C. The LiScO 2 ceramic sintered at 900 °C exhibits excellent microwave dielectric properties, including a low relative permittivity ( ε r = 14.9), a high quality factor ( Q × f = 59,465 GHz), and a near-zero temperature coefficient of resonant frequency ( τ f = −3.4 ppm/°C). Moreover, LiScO 2 demonstrates good chemical compatibility with Ag electrodes at 900 °C, indicating strong potential for low-temperature co-fired ceramic (LTCC) applications. The high Q × f value is attributed to favorable ionic radius matching between Li + and Sc 3+ , which suppresses cation rattling effect and high packing fraction. And τ f shows a strong dependence on porosity, varying from −54.30 ppm/°C to nearly zero values with increasing sintering temperature. This behavior suggests that porosity is a key extrinsic factor governing τ f . Finally, LiScO 2 is preliminarily demonstrated as a dielectric resonator antenna suitable for 5 G communication.
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Journal of Soil Science and Plant Nutrition
·
2026
·
IF 3.6
Li Siyao,Guo Naijia,Zhao Haiying,Liu Zhiyuan,Fan Chengheng,Li Fengying,Cao Jiling
Purpose: Silver nanoparticles (AgNPs) are becoming emerging contaminants, raising increasing interests and concerns regarding their effects on plants and soil microbes. Understanding these effects from a cultivar-specific perspective is crucial for ensuring crop production and food safety. Methods: Pot experiments were performed to evaluate the effects of AgNPs (1.0 mg kg − 1 , 10.0 mg kg − 1 , and 50.0 mg kg − 1 ) on the growth, Ag accumulation, and rhizosphere microbial community of two maize cultivars: waxy maize and sweet maize. Results: AgNPs exerted hormetic effects on plant growth of waxy maize and sweet maize. Low concentrations (1.0 and/or 10.0 mg kg − 1 ) increased plant shoot, root and total biomass as well as chlorophyll content but increased superoxide dismutase (SOD) activity and hydrogen peroxide (H 2 O 2 ) contents, whereas high concentrations (50.0 mg kg − 1 ) decreased plant shoot, total biomass, chlorophyll content, and increased malondialdehyde (MDA) content. The stimulatory effect occurred at 1.0 and 10.0 mg kg − 1 AgNPs for waxy maize but only at 10.0 mg kg − 1 for sweet maize, indicating that waxy maize might respond more positively to AgNPs. Additionally, with increasing AgNP doses, waxy maize seedlings accumulated lower Ag in leaves, stems, and roots relative to sweet maize. The waxy maize rhizosphere was enriched with Proteobacteria (Sphigomonas) and Actinobacteria (Arthrobacter) under lower doses (1.0 and 10.0 mg kg − 1 ) of AgNPs, especially under 10.0 mg kg − 1 AgNPs, which could increase plants resistance and adsorb Ag in soil, respectively. In contrast, the sweet maize rhizosphere contained comparable Actinobacteria and Proteobacteria under control and lower doses (1.0 and 10.0 mg kg − 1 ) of AgNPs. Soil Ag content and plant biomass were found to be highly correlated with bacterial community composition in the maize rhizosphere. Conclusions: Taken together, these findings suggest that the hormetic effects of AgNPs on maize growth are cultivar-dependent, which may be closely linked to the differential shifts in rhizosphere microbial communities.
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Molecular Catalysis
·
2026
·
IF 4.3
Richuan Rao,Hao Zhang,Qiang Ling,Xiongzi Dong,Song Fang,Mingyue Zheng,Tao Wang,Binghui Wang,Chunming Hu
Interfacial Ag° content of Ag-CeO 2 catalysts was modulated by pyrolysis temperature. • Rich Ag 0 catalysts had higher catalytic ability than those rich in Ce 3+ and defects. • Temperature triggered electron transfer of Ag 0 to carbonate-activated CeO 2 interface. • Dynamic evolution of Ag-CeO 2 interface determined catalytic capacity of its catalyst. Ag-CeO 2 catalysts were fabricated with an agar-assisted pyrolysis method and their interfacial structures were tuned to investigate their role in CO oxidation. The catalysts mainly consisted of irregular CeO 2 nanoparticles with abundant metallic Ag 0 , Ce 3+ and oxygen vacancies at the interface. As the pyrolysis temperature increased, the metallic Ag⁰ content decreased while Ag⁺ and Ce³⁺ species increased. Using CO oxidation as a probe reaction, catalytic evaluation confirmed that the activity was positively correlated with the interfacial metallic Ag⁰ content, whereas no direct positive correlation was observed with Ag⁺, Ce³⁺, or oxygen vacancies alone-suggesting a dominant role of Ag⁰, although a possible synergistic contribution from Ce³⁺/oxygen vacancies is not ruled out. Ag-CeO 2 catalysts after CO adsorption were monitored by XPS and in situ FT-IR for identifying the dynamic evolution of Ag-CeO 2 interface. The reaction temperature was revealed to trigger electron transfer from metallic Ag⁰ to the carbonate-bound CeO₂ interface, which simultaneously converted initially formed polydentate and bidentate carbonates into bridging and monodentate intermediates. The reversible redox transformation (Ag⁰ + Ce⁴⁺ ⇌ Ag⁺ + Ce³⁺) at the interface of these catalysts further corroborated the essential role of Ag⁰ in enhancing the catalytic activities for CO oxidation. These findings, obtained with CO oxidation as a model reaction, differ from the simple traditional correlations with oxygen vacancies or Ce³⁺ concentration, offering a molecular-level blueprint for designing highly active and stable CeO₂-supported catalysts for catalytic oxidation reactions. Download: Download high-res image (440KB) Download: Download full-size image
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CELL
·
2026
·Vol. 189
·期 4
·1086-1107
·
IF 42.5
Yuqiong Wang,Lamei Du,Han Wu,Hu Li,Jiaqi Liu,Yongyan Hu,Xinran Jiang,Dedong Yin,Yongcun Hao,Ao Xiao,Yawen Yang,Jingkun Zhou,Long Lin,Feng Chen,Denglin Ye,Yuhui He,Zhixiong Zhao,Baoyu Liu,Kuanming Yao,Xiaohong Wang,Xi Chen,Yihang Tong,Fuqi Yao,Kuan Yang,Hong Sun,Yanzhe Fu,Siqi Wang,Zhaocun Huang,Xinyi Chen,Hao Guo,Shenshen Kong,Shaohua Yang,Wenjing Song,Faheem Ershad,Yang Wang,Li Zhang,Qiuting Zhang,Hao Wu,Ning Li,Wei Rao,Jiebo Li,Li Yang,Xing Chen,Wei Mu,Xinge Yu,Yubo Fan,Cunjiang Yu,Ye Xu,Lingqian Chang
Efficient and precise delivery of therapeutics toward target loci of organs is crucial for effective disease therapy. However, conventional devices face remarkable challenges to achieve clinically desirable conformality, spatial controllability, and efficiency, especially to organs with complex anatomies, due to a lack of appropriate mechanical and/or material properties. Here, we report a bioelectronic patch for organ-conformal, kirigami-structured electro-transfection (POCKET) that features high conformality enabled by parametric customization, achieving a theoretically maximum effective coverage area over the target organ. The four-layered POCKET forms a unique nanopore-cell juxtaposition configuration at the tissue-device interface, which induces precise, uniform electro-perforation while expediting intracellular transport of payloads. The high delivery efficiency and precise spatial controllability have been systematically validated with various organs. POCKET-mediated therapeutic delivery achieved organ protection from accumulated DNA damage or ischemia-reperfusion injury, restoring organ functionalities. This work presents a customizable technique with translational value for precise therapy in challenging target organs.
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FUSION SCIENCE AND TECHNOLOGY
·
2026
·
IF 1.2
Hu Wang,Chao Fang,Zhengbao Yu,Jin Liu,Jing Huang,Jing Wei,Weihua Wang,Wei Lu,Xiaowu Yu
The thermal conductivity of epoxy resin decreases sharply to approximately 0.01 W·m−1·K−1 at 4 K, significantly limiting its application in nuclear fusion engineering. To address this limitation, this study prepared epoxy composite reinforced with silver, diamond, or wollastonite at 50 vol % and 70 vol %, and systematically investigated their 4-K thermal conductivity. The results demonstrated that at 70 vol %, the silver epoxy composite achieved a thermal conductivity of 5 W·m−1·K−1, which is more than two orders of magnitude higher than that of the diamond-epoxy composite (0.05 W·m−1·K−1). At 50 vol %, the silver epoxy composite (0.12 W·m−1 ·K−1) exhibited similar thermal conductivity to the wollastonite epoxy composite (0.1 W·m−1·K−1). Increasing the silver filler from 50 to 70 vol % enhanced the thermal conductivity from 0.12 to 5 W·m−1·K−1, representing a 42-fold improvement.Through combined theoretical analysis, microstructural characterization, and finite element analysis, the following conclusions were drawn. The electron conduction–dominated fillers were the preferred choice for the cryogenic thermal conductivity epoxy composite. In the discrete composite, even the electron conduction–dominated filler could not significantly improve the cryogenic thermal conductivity of the epoxy composite; even 50 vol % silver only reached approximately 0.12 W·m−1 ·K−1. The synergistic effect between the filler type and the distribution (electron conduction–dominated filler combined with continuous filler distribution) can substantially enhance the cryogenic thermal conductivity of the epoxy composite. This work provides technical support for the design of high-performance thermal management materials for superconducting magnet cooling systems in fusion reactors.
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ACS Applied Electronic Materials
·
2026
·
IF 4.7
Xue-Ting Zhang,Meng-Nan Liu,Sai Wang,Gang Zheng,Ru Li,Jun Zhang,Xiuping He,Wen-Peng Han,Yun-Ze Long
To overcome the limitations of flexible sensors relying on external power supply and single-mode detection, this study proposes a self-powered flexible sensor based on PVDF-TrFE-co-PEG Diamine@ionic liquid nanofiber membrane. This sensor integrates capacitive and piezoelectric dual modes within a compact sandwich structure, enabling high-sensitivity static pressure detection and self-powered dynamic signal generation without requiring an external power source or mode switching. This sensor exhibits ultrahigh sensitivity (32.28 kPa–1, pressure < 12.5 kPa) in capacitive mode and can generate an open-circuit voltage as high as 1.51 V in piezoelectric mode, achieving efficient mechanical energy-to-electrical energy conversion. This will demonstrate broad application prospects in the fields of passive wearable electronics and electronic skin, providing a methodology for designing multifunctional integrated sensing systems.
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Joule
·
2026
·
IF 37.1
Shu Yuan,Lizhen Wu,Rongyi Wang,Rui Xue,Fangyuan Li,Huiyuan Li,Guiru Zhang,Peng Shen,Zhiming Bao,Congfan Zhao,Qing Wang,Jiewei Yin,Liuxuan Luo,Shuiyun Shen,Liang An,Xiaohui Yan,Junliang Zhang
Industrial implementation of electrochemical CO 2 reduction requires maximizing both throughput and durability. While conventional rib-channel flow fields are the current standard, further elevating their performance is constrained by the inherent trade-offs involving CO 2 transport, water management, and salt precipitation behavior. To overcome these coupled challenges, we introduce a 3D foam flow field architecture. This design utilizes an interconnected porous structure to provide moderate convective transport, effectively mitigating local CO 2 starvation and enabling effective passive water management. Consequently, we achieve a CO Faradaic efficiency of 90% at an industrially relevant current density of 1,000 mA cm −2 . The optimized transport yields a high CO product concentration of 74 vol % and increases single-pass conversion to 43%. The device also demonstrates superior stability with a degradation rate only 1/14 of the baseline design, maintaining performance for over 400 h. This highlights that advanced flow field engineering is essential for unlocking industrial-scale CO 2 electrolysis.
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危险品化学品经营许可证（带存储）