Energy & Environmental Materials
·
2026
·
IF 13.8
Pengyu Tan,Jianwei Lu,Yimin Chen,Kaiwen Yang,Kun Luo,Dan Liu,Weiwei Lei
Rechargeable zinc–air batteries (ZABs) are promising candidates for sustainable energy storage; however, their performance is severely limited by sluggish oxygen reduction and evolution (ORR/OER) kinetics. Here, a hard-templating etching strategy was employed to construct nitrogen-doped hollow mesoporous carbon spheres embedded with NiCo nanoparticles (NiCo@N-HMCS). The hollow nanostructure, together with a strong electronic coupling between NiCo alloys and N-doped carbon, provides abundant accessible active sites, optimized charge transfer, and robust structural stability. As a result, NiCo@N-HMCS delivers remarkable bifunctional electrocatalytic activity in alkaline media, with a half-wave potential of 0.84 V for the oxygen reduction reaction and an overpotential of 330 mV at 10 mA cm −2 for the oxygen evolution reaction. When applied in ZABs, the catalyst delivers a high open-circuit voltage of 1.56 V, a peak power density of 185.53 mW cm −2 , and durable cycling over 300 h. The flexible ZAB configuration also delivers a power density of 79.06 mW cm −2 and stable operation of 120 h. This study demonstrates a robust platinum-group-metal-free strategy for advancing next-generation rechargeable and flexible energy storage systems.
✓ 已验证
产品关联
DOI
高影响因子
Energy & Environmental Materials
·
2026
·
IF 13.8
Guomeng Xie,Ziqin Xu,Delai Qian,Ruiwu Li,Qingsong Hua,Shun Lu,Haitao Fang
Single-crystalline Ni-rich cathodes are promising candidates for high-energy density lithium-ion batteries due to their grain-boundary-free structures, which effectively reduce structural degradation associated with intergranular microcracks often seen in polycrystalline materials. However, these single-crystalline cathodes face challenges such as slow Li + diffusion kinetics, significant parasitic interface reactions, and irreversible phase transitions at elevated cut-off voltages, which can lead to the formation of intragranular cracks and impede their practical usage. In this study, the single-crystalline LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) was synthesized by stripping grain boundaries from polycrystalline NCA through Mo/Nb dual doping. The Mo doping near the grain surface significantly reduces parasitic interface reactions, while Nb doping within the bulk of grains helps to improve harmful irreversible phase transitions. The synergistic effect of Mo/Nb dual doping in single-crystalline NCA effectively suppresses intragranular crack formation during prolonged cycling at high cut-off voltages. Therefore, the Mo/Nb co-doped cathode demonstrates enhanced structural stability and electrochemical activity, achieving an impressive capacity retention of 82.4% after 500 cycles at 1 C between 2.8 and 4.7 V, surpassing both polycrystalline and single-crystalline NCA doped only with Mo or Nb. This work provides a new strategy to synthesize single-crystalline NCA combined with effective dual doping, advancing the development of high-energy density lithium-ion batteries.
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2026
·
IF 11.8
Lingxin Kong,Hui Luo,Weiliang Xiong,Sihai Lv,Qifan Li,Yongzhi Cheng,Fu Chen,Xiangcheng Li
Magnetic porous carbon foams, with low density, strong attenuation, and improved impedance matching, have been introduced as effective microwave absorbers to combat electromagnetic interference. In this study, morphology regulation of CoMn-MOF derived composites anchored on carbon foam were prepared by in situ growth and high-temperature pyrolysis. The pyrolysis temperature significantly influences the structural and chemical properties of the magnetic carbon foams. At a matching thickness of 1.45 mm, the material yielded a wide absorption bandwidth of 4.46 GHz, along with a minimum reflection loss of −51.54 dB at 1.55 mm. The excellent microwave absorption properties were contributed to the conductive loss, dipole polarization, interfacial polarization, natural resonance, exchange resonance, and impedance matching. The prepared magnetic porous carbon foams also integrate thermal insulation property. This work established a promising design strategy for advanced microwave absorbers that combine low density with high absorption efficiency, broadband absorption capabilities, and thermal insulation properties.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2026
·
IF 11.8
Yongyue Xiao,Li Yang,Yuanduo Qu,Shuai Zhang,Shanwu Ke,Chan Ke,Yang Li,Mengdi Hao,Chen Wang,Pan Xue,Zhenyu Zhang,Hao Huang,Yanliang Liu,Ziqiang Cheng,Cong Ye,Paul K. Chu,Xue-Feng Yu,Jiahong Wang
Memristors show promise in neuromorphic computing because of their resistive switching properties and memory functions. The integration of high-performance memristor devices with sensors offers an effective pathway toward energy-efficient edge-computing systems. Herein, using the natural superlattice 2D material of BiTiS 3 composed of alternating BiS and TiS 2 sublayers, a volatile memristor with a low operating voltage is designed and demonstrated. The lattice distortion and sulfur vacancies in BiTiS 3 enhance ion migration and filament formation, as verified by conductive atomic force microscopy and X-ray photoelectron spectroscopy. This defect-induced enhancement of ion transport promotes the rapid formation and dissolution of conductive filaments, thereby implementing the memristors’ volatile switching behavior. The nociceptive functions, such as pain hypersensitivity and allodynia, are mimicked. This biomimetic nociceptor system effectively emulates the biological pain response pathways, converts physical stimuli into electrical signals, and generates the appropriate neural-like outputs. Our results highlight the potential of memristors in bioinspired electronics and reveal a new strategy for intelligent bionic devices and artificial sensing systems.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2026
·
IF 4.9
Wei Wu,Yangsheng Zhou,Zijian Tang,Xianwu Cao,Xiaolei Li,Chenhui Zhang
In this work, a hybrid filler g-C 3 N 4 @TiO 2 consisting of g-C 3 N 4 and TiO 2 was prepared by an in situ surface growth strategy. The hybrid was then incorporated into ultra-high molecular weight polyethylene (UHMWPE) by melt compounding to improve wear resistance. The morphology observation revealed that 3 wt% g-C 3 N 4 @TiO 2 could uniformly disperse in the UHMWPE matrix without visible aggregates. The UHMWPE composites containing g-C 3 N 4 @TiO 2 exhibited enhanced thermal stability, crystallinity as well as storage modulus. The tribological tests demonstrated that the UHMWPE composite containing 3 wt% g-C 3 N 4 @TiO 2 achieved the lowest coefficient of friction (0.162) and a significantly reduced wear rate (3.27 × 10 −6 mm 3 /N·m). These values represented reductions of 28.0% and 47.9%, respectively, compared to pure UHMWPE. The surface analysis confirmed that the presence of g-C 3 N 4 and TiO 2 had good synergistic effects on the formation of a continuous, compact tribofilm, which effectively reduced direct contact and abrasive wear. The improved tribological behavior is ascribed to the layered g-C 3 N 4 contributed lubrication through interlayer shearing, while TiO 2 nanoparticles enhanced the mechanical strength and wear resistance of the tribofilm, ensuring its durability under sliding conditions. This work offers a feasible way to develop hybrid additives for UHMWPE composites with low coefficient of friction and good wear resistance. Highlights A hybrid consisting of TiO 2 and g-C 3 N 4 was prepared successfully. The composite exhibited enhanced tribological performance. The addition of hybrid could effectively lower the coefficient of friction. The hybrid filler had good synergistic effects on reducing wear rate.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Xiaopeng Li,Qixiong Zhang,Tian Fang,Renlu Han,Yafei Hou,Jing Cuan,Weiping Li
Dielectric capacitors for pulsed power require stable operation at elevated temperatures, but commercial biaxially oriented polypropylene (BOPP) shows sharp performance degradation above ~105°C. Polyetherimide (PEI) is a promising polymer with high glass transition temperature, yet its low dielectric constant and poor thermal management limit high-temperature energy storage. Here, low-loading 2D Al 2 O 3 nanosheets (AO NSs) are introduced into PEI to simultaneously regulate charge transport and heat dissipation while avoiding the high-loading drawbacks of conventional 0D/1D ceramic fillers. The optimal 0.6 wt.% AO/PEI composite exhibits a high breakdown strength of 571.2 MV·m −1 at 25°C and retains 540.7 MV·m −1 at 100°C and 513.6 MV·m −1 at 150°C. Consequently, a maximum recoverable energy density of 7.9 J·cm −3 ( η > 90%) is achieved at 25°C, and 5.5 J·cm −3 ( η > 80%) at 150°C. Experiments combined with electric-treeing and temperature-distribution simulations verify suppressed field concentration and reduced heat accumulation, enabling stable performance over 10 4 cycles. These results demonstrate that low-content two-dimensional fillers provide an effective strategy for high-temperature dielectric energy storage. Highlights Low-content AO NSs enhance electrical and thermal properties in composites. The 0.6 wt.% AO/PEI composite shows high dielectric strength and stability at elevated temperatures. AO NSs suppress electric-field concentration and heat accumulation. Achieves 7.9 J·cm −3 energy density at 25°C and 5.5 J·cm −3 at 150°C.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yanqing Zu,Run Gan,Lixia Jing,Bing Yang,Binglin Zeng,Liru Yuan,Peitao Liu,Xiaodong Li,Ailing Feng,Lei Zhou
Lead-free vacancy-ordered double perovskites are promising scintillator candidates for X-ray imaging due to their excellent photoluminescence and low afterglow. However, the defect-related nonradiative recombination will decrease their photoluminescence intensity as well as scintillation performance. In this work, a facile room-temperature recrystallization approach was used to prepare high-quality Cs 2 HfCl 6 :1% Te perovskites microcrystals with suppressed defects via in situ ligand passivation with cationic quaternary ammonium surfactants. By tuning the chain length of ligands, dodecyltrimethylammonium chloride (DTAC) passivated Cs 2 HfCl 6 :1% Te possesses a high photoluminescence quantum yield (PLQY) up to 73.87%, which is higher than that of didodecyldimethylammonium chloride (DDAC) passivated Cs 2 HfCl 6 :1% Te. The improved performances of perovskites were further clarified by density functional theory (DFT) computations, which reveal that a larger binding energy for DTAC (−2.069 eV) exceeds that of DDAC (−1.891 eV). The Cs 2 HfCl 6 :1% Te (DTAC) exhibits a high spatial resolution (10 lp mm −1 ) and notable light yield (19,693 photons MeV −1 ). This study provides an effective strategy for defect suppression in perovskite scintillators, facilitating their use in high-resolution X-ray imaging.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Abdul Shiferaw Qadir,Kejian Wang,Agasthiyaraj Lakshmanan,Raza Ullah,Mohamedazeem M. Mohideen,Alamgir Alamgir,Abdurohman Mengesha Mengesha Yessuf,Yong Liu
The development of efficient and cost-effective electrocatalysts is critical for advancing durable water-splitting systems. Special attention must be given to catalyst design, functionality, and interface regulation strategy to create synergistic effects that enhance electrocatalytic performance. We present a rational design of non-precious optimized heterojunction electrocatalysts comprising face-centered cubic nickel metal, cubic Ni₃S₄, and hexagonal NiS phases, supported on a 3D cross-linked carbon nanofiber (CNF) network. Detailed characterization reveals lattice-matching heterojunctions between Ni₃S₄, NiS, and Ni, where strong C-S bonding stabilizes the heterojunction and ensures effective electronic coupling. These heterogeneous interfaces serve as highly electroactive regions, significantly enhancing charge transfer, structural stability, and reaction kinetics. The optimized Ni₃S₄/NiS/Ni@CNF composite demonstrates exceptional bifunctional performance, achieving a low hydrogen evolution reaction overpotential of 88 mV at 10 mA/cm² with a Tafel slope of 34 mV/dec and an oxygen evolution reaction overpotential of 330 mV at 10 mA/cm² with a Tafel slope of 45 mV/dec, alongside excellent durability. The superior electrocatalytic performance is attributed to synergistic interactions at the Ni₃S₄, NiS, Ni, and CNF heterointerfaces, enhanced electronic conductivity, increased catalytic site exposure, and efficient interfacial charge transfer. This work offers a new strategy for the rational design of heterojunction-based materials with superior electrochemical performance in water-splitting applications.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2026
·
IF 11
Jingwen Zhang,Zeqian Wang,Bingjie Mai,Shuyu Wang,Rui Liu,Zhe Jian,Ziwei Deng
Recent advancements in skin bioelectronics have significantly transformed personalized daily healthcare monitoring and wound management. Consequently, the development of advanced smart wound-dressing systems, such as bioelectronics-integrated wound dressings, has the potential to address numerous clinical challenges associated with effective wound management. Herein, we introduce a versatile Janus film composed of MXene@PEDOT:PSS and bacterial cellulose (designated as MPP/BC), developed as an innovative and adaptable bioelectronics-integrated wound dressing. This material is designed to enhance skin bioelectronics for health monitoring while facilitating accelerated wound healing. The resulting MPP/BC Janus film exhibits remarkable flexibility, high conductivity, photothermal sterilization capabilities, and excellent biocompatibility. These essential characteristics render it suitable for integration into a versatile epidermal sensor capable of real-time monitoring of various human physiological signals. Furthermore, this MPP/BC Janus film-based wound dressing demonstrates significant potential in enhancing therapeutic efficacy to promote wound healing by facilitating epithelial regeneration and increasing collagen deposition. Consequently, this study introduces a promising strategy for developing advanced smart wound-dressing systems aimed at accelerating and optimizing the wound healing process. This bioelectronics-integrated wound dressing holds significant potential for applications in skin bioelectronics, particularly in continuous health monitoring and intelligent wound management.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 12
·e07478
·
IF 2.3
Xinde Jiang,Yi Zeng,Xian Li,Shuai Tian,Yilong Zou,Feng Jiang,Zi Long,Guiqing Gao,Manqing Xu,Zhanmeng Liu
Peroxymonosulfate (PMS)-mediated advanced oxidation processes have attracted increasing attention for the degradation of antibiotics in wastewater due to their high degradation efficiency and relatively low cost. However, the design of efficient catalysts for PMS activation remains a major challenge. In this work, an N-doped Fe 3 O 4 /CC900 catalyst was prepared via a hydrothermal method to activate PMS for tetracycline degradation. The degradation efficiency in the Fe 3 O 4 /CC900/PMS system reached 96.1% within 60 min, and the reaction rate constant reached 0.125 min −1 , which was about 1.19 times higher than that of the CC900/PMS system and 1.52 times higher than that of the Fe 3 O 4 /PMS system. Quenching experiments demonstrated that SO 4 • − , •OH, and 1 O 2 were the dominant reactive species during the reaction. Further studies revealed that the enhanced catalytic performance could be attributed to the synergistic activation between Fe 3 O 4 nanoparticles and CC900, which increased the number of reactive sites and the specific surface area, and pyridinic N, abundant surface hydroxyl groups, and the redox cycle of iron played critical roles in PMS activation. This study highlights the key role of N in improving the PMS activation, and provides a new insight for the rational design of environmentally friendly and efficient catalysts for wastewater treatment. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Yuan Zhou,Ruijun He,Nianbing Zhong,Hao Lei,Zhenting Xie,Qiao Lan,Xuefeng He
The hydrogen evolution reaction (HER) is a critical electrochemical process in water electrolysis. However, the development of binder-free, self-standing HER electrodes that combine high durability with low cost remains challenging. Herein, we propose a defect-mediated anchoring strategy to construct self-standing Pt electrodes by coupling electrochemical anodization with electrodeposition. Anodization reconstructs carbon fiber paper into a defect-rich, superhydrophilic substrate. During electrodeposition, Pt single atoms immobilized at carbon defect sites serve as nucleation centers and progressively grow into Pt nanoparticles. Benefiting from strong metal-support interactions and improved catalyst utilization, the optimized electrode delivers an ultralow overpotential of 12.7 mV at 10 mA cm⁻ 2 in 0.5 M H 2 SO 4 and a highest mass activity of 1 Pt A 2 mg 40.at 100 mV. Moreover, the Pt-1000@d-CF electrode exhibits superior stability, exhibiting only a 35.9% current density decay at 100 mV after an accelerated degradation test of 20000 cycles, which substantially outperforms commercial Pt/C (47%). This work highlights defect engineering of carbon substrates as an effective strategy to stabilize Pt species while maximizing catalyst utilization in self-standing HER electrodes.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Cheng Peng,Lei Yu,Guangduo Zhu,Zhinan Ren,Haishuang Liu,Yingjie Hao
Engineering bioresponsive materials for treating oxidative stress-induced degeneration remains a major challenge in intervertebral disc repair. We developed a UV-crosslinked injectable hydrogel composed of oxidized hyaluronic acid (OHA), gelatin, and polyethylene glycol diacrylate (PEGDA), co-loaded with quercetin and greigite nanozymes (G-NZ), termed OGPQ/G-NZ. This hydrogel exhibits robust structural integrity, shear resistance, and pH/reactive oxygen species (ROS)-responsive release of quercetin. G-NZ provides multi-enzyme–mimetic antioxidant activity, including superoxide dismutase, catalase, and glutathione peroxidase–like functions, along with antibacterial protection. In vitro, the hydrogel maintains nucleus pulposus cell (NPC) viability under oxidative conditions, reduces ROS accumulation, and promotes extracellular matrix (ECM) protein synthesis. In vivo application in a rat intervertebral disc degeneration (IVDD) model significantly preserved disc height, structure, and ECM integrity. RNA-seq and network pharmacology analysis identified PUM1/2-mediated degradation of E2F3 as a key regulatory pathway. Quercetin inhibits PUM1/2 expression, thereby stabilizing E2F3 mRNA and suppressing NPC senescence. Moreover, in vitro assays and CellChat-based single-cell analysis demonstrated that OGPQ/G-NZ modulates inflammatory macrophage polarization and enhances M2–NPC reparative signaling. These results highlight the hydrogel's engineered antioxidant and transcriptome-modulating properties as a promising platform for oxidative stress-responsive IVDD treatment.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）