ANALYTICAL LETTERS
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2026
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IF 1.8
Sumin Xu,Jiajia Zhang,Jianying Qu
Se@Ti3C2/CNs nanocomposites were successfully prepared through combining Ti3C2 MXene with ZIF-8-derived nitrogen-doped carbon materials (CNs) and employing a selenization strategy. The morphology and structural information of the material were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Electrochemical investigation showed that this material exhibited outstanding electrocatalytic performance to acetaminophen (AP) and p-aminophenol (4-AP) and could detect them simultaneously in wider linear ranges of 0.10–400.00 μM and 0.10–330.00 μM respectively with detection limits of 45.7 and 46.0 nM, respectively. Analysis of water samples and artificial urine shows that the sensor based on this material provides satisfactory results for AP and 4-AP with satisfactory selectivity (current change is less than 5% of the initial value) and stability (current retains above 95% of its initial response after 10 days of storage), which offers potential applications in drug analysis and environmental monitoring.
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高影响因子
Microstructures
·
2026
·Vol. 6
·期 2
·N
·
IF 8.5
Silin Tang\u003Csup\u003E1,2\u003C\u002Fsup\u003E,Yingzhi Meng\u003Csup\u003E3\u003C\u002Fsup\u003E,Dongyuan Li\u003Csup\u003E1,2\u003C\u002Fsup\u003E,Guoxiang Zhang\u003Csup\u003E1,2\u003C\u002Fsup\u003E,Laijun Liu\u003Csup\u003E3\u003C\u002Fsup\u003E,Qingqing Ke\u003Csup\u003E1,2\u003C\u002Fsup\u003E
Electrocaloric (EC) cooling represents a promising solid-state approach for next-generation thermal management. However, achieving substantial temperature modulation remains a challenge due to intrinsic material limitations and inefficient energy conversion. Herein, we focus on microstructure regulation to enhance thermal conductivity and EC performance. A hydroxyl-functionalized Ba0.63Sr0.37Zr0.01(Ti0.999Mn0.001)0.99O3 (BSZMT-OH) and h-BNNS-OH composite was designed, with enhanced interfacial hydrogen bonding to optimize electric field response in a P(VDF-TrFE-CFE) matrix. Finite element analysis (FEA) and piezo response force microscopy (PFM) reveal strengthened interfacial coupling, which facilitates rapid domain switching kinetics by amplifying tetragonal P4mm phase responses. These enhancements yield a peak EC temperature change (ΔT) of 1.59 K under a low electric field of 40 MV/m in the optimized 6% BSZMT-OH@4 h-BNNS-OH (6@4BNNS) composite. Integrated into a double-layer four-section electrocaloric cooling (DL 4 EC) device, it cools from 70 to 23 °C in 23 s, outperforming water cooling. Our findings offer insights into EC mechanisms and present a high-performance thermal management strategy.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Ying Ge,Zhiqiang Chen,Junming Kang,Yuanhang Ge,Kaiqin Ou,Yicheng Ouyang,Zijun Yang,Lequan Wang,Hongbin Lu
Acidity-regulated partial-protonation enables surface-selective nanofibrillation of PBO fibers while preserving the microfiber skeleton. • Hierarchical PBO films achieve synergistic enhancement of mechanical strength (267.55 MPa) and thermal conductivity (24.80 Wꞏm −1 ꞏK −1 ). • Hierarchical PBO film as a heat spreader lowers hotspot temperature by 12.2 °C and homogenizes temperature field. • One-step dissolution-to-film process reduces preparation time by nearly 7.5-fold and enables scalable blade-coating/roller-pressing fabrication. Advanced thermal-management materials require thin films that combine high thermal conductivity with robust mechanical properties. Poly( p -phenylene benzobisoxazole) (PBO) nanofibers are promising candidates; however, conventional top-down processing in strong protic acids requires complete fibrillation followed by deprotonation and reassembly through a multistep sol-gel-film route, which disrupts the native fibrous hierarchy and limits both mechanical performance and processing efficiency. Herein, we report an acidity-regulated partial-protonation strategy that induces interface-selective fibrillation and enables the fabrication of hierarchical PBO micro-nanofiber films through direct dissolution-to-wet-film filtration followed by hot pressing. The resulting highly oriented and compact network consists of retained microfibers that form continuous load-bearing and heat-transport pathways, while surface-exfoliated nanofibers act as intrinsic binders to bridge adjacent microfibers. The optimized hierarchical film achieves a tensile strength of 267.55 MPa, 40.83% higher than that of the fully dissociated PBO nanofiber film, together with an in-plane thermal conductivity of 24.80 W m −1 K −1 . Meanwhile, the direct route substantially shortens the solution-to-wet-film processing time compared with conventional sol-gel processing. As a heat spreader, the film homogenizes the temperature field, suppresses local hotspots, and reduces the hotspot temperature by 12.2 °C. Furthermore, integration with blade coating and roller pressing demonstrates its compatibility with continuous film fabrication, highlighting the potential scalability of this filler-free and structure-preserving strategy for advanced thermal-management applications. This work presents an acidity-regulated partial-protonation strategy to fabricate micro-nano hierarchical PBO fibrous films via interface-selective fibrillation engineering. By tuning solvent acidity, surface-exfoliated nanofibers act as intrinsic binders while retained microfibers serve as continuous scaffolds, synergistically enhancing films' mechanical and thermal performance: in-plane thermal conductivity of 24.80 W·m −1 ·K −1 , tensile strength of 267.55 MPa, and thermal stability (T 5% ≈ 596 °C). Download: Download high-res image (188KB) Download: Download full-size image
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Daniel Kobina Sam,Zhen Tang,Yan Cao
Noble-metal-based electrocatalysts have long been the top choice for hydrogen evolution reaction (HER) electrocatalysts, offering low overpotentials and Tafel slopes. Nonetheless, their use in alkaline media has been limited due to the sluggish kinetics of the Volmer process. Herein, we develop a unique biomass-derived heteroatom-doped porous carbon material via self-templating to anchor ruthenium‑molybdenum carbide (Ru-Mo 2 C) nanoclusters. The synthesized Ru-Mo 2 C-supported heteroatom-doped porous carbon (RuMo-NPCSPC) shows exceptional electrocatalytic ability for alkaline HER, achieving low overpotentials of 49, 85, and 92 mV to realize 10 mA cm −2 in 1 M KOH, alkaline seawater, and simulated alkaline seawater, respectively. The RuMo-NPCSPC also boasts low Tafel slopes and ultrahigh Faradaic Efficiencies (98–100 %) in alkaline media, outperforming most noble metal-based catalysts and mercantile Pt/C. Most importantly, the catalyst demonstrates outstanding stability, signifying its potential for industrial hydrogen production. This work delivers profound perspectives into synthesizing advanced nanostructured porous carbon materials using abundant biomass resources for alkaline HER.
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高影响因子
Journal of Materials Chemistry C
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2025
·
IF 5.1
Runji Yang,Weiqing Guo,Qingxi Jin,Yaohua Xu,Feng Wei,Jiliang Zhang
Sensitive, selective and low-cost sensors for nitric oxide (NO) detection are significant due to its toxicity. This report investigates the tunable sensing behavior in chemiresistive NO sensors using α-Fe2O3 nanoparticles as sensing materials. The sensor exhibits a distinctive sensing characteristic with a reversible transition from p- to n-type sensing behavior, which is regulated by working temperature. The temperature-modulated (200–400 °C) and concentration-dependent (100–1000 ppm) p–n transition diagrams are constructed, while the gas sensing behaviors can be well described using a two-isotherm model based on Langmuir adsorption theory. Detailed reactions between NO and α-Fe2O3 at each temperature are proposed, and the corresponding activation energy is calculated. It is demonstrated that the p–n transition mechanism during NO detection is modulated by the dynamic variations in the α-Fe2O3–NO interaction. The p–n transition observed as a specific behavior in NO gas sensing can provide a novel approach to enhance the recognition capability for NO gas.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Chunmu Wang,Chenxi Pang,Jiahua Lu,Jie Zhu,Jujun Ruan
Decapsulation is the first step of recycling waste crystalline silicon photovoltaic (PV) panels. Nowadays, wet decapsulation has been a mainstream decapsulation method. It delivers high-purity decapsulation products and enables full-component recycling of laminates. However, current wet decapsulation technologies suffer from several limitations, including excessively high solvent concentrations and significant environmental risks. Moreover, critical issues such as ineffective decapsulation at low solvent concentrations, undefined waste liquid treatment methods, and uncontrollable decapsulation effect remain to be resolved. In order to solve these problems, this study used p-toluene sulfonic acid (PTSA) and hydrogen peroxide (H 2 O 2 ) to strengthen terpinolene efficiently decapsulating waste crystalline silicon PV laminates. PTSA and H₂O₂ were shown to strengthen terpinolene's decapsulation efficiency, achieving 100 % decapsulation rates even at low terpinolene concentrations. A positive correlation was observed between terpinolene concentration and the degree of silicon layer fragmentation. This paper analyzed the characteristics of the decapsulated waste liquid, such as high calorific value and low metal dissolution capacity. The feasibility of waste liquid combustion treatment was evaluated for the first time from the perspective of environmental impact. Meanwhile, the mechanism by which auxiliary reagents (PTSA and H 2 O 2 ) work in synergy to strengthen the decapsulation of terpinolene was deeply analyzed: PTSA provided acidic conditions, and H 2 O 2 act as a free radical initiator. The two worked together to activate terpinolene to generate more terpinolene free radicals (Terp·). Terp· attacked the main chain and bridging of ethylene-vinyl acetate polymer (EVA), leading to chain breaks and the decapsulation effect. This research provides a theoretical basis for the wet decapsulation of waste crystalline silicon PV laminates, links laboratory innovation with practical application, and offers a sustainable approach for industrial-scale PV recycling. Synopsis The synergistic effect of PTSA and H 2 O 2 strengthens the terpinolene to completely decapsulate the waste crystalline silicon photovoltaic laminates.
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高影响因子
JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Lei Liu,Kaiqi Wu,Liyuan Huang,Liang Lan,Dong Cheng,Hanyu Yi,Xin Ao,Yecheng Liu,Chengjin Peng,Shan Fang
Composite polymer electrolytes (CPEs) used in solid-state lithium metal batteries (SSLBs) continue to face challenges, including a gradual rise in interfacial resistance and unchecked growth of lithium dendrites. Herein, a flexible and mechanically robust sandwich-structured CSE membrane is constructed, features poly(vinylidenefluoride-co-trifluoroethylene) (P(VDF-TrFE)) containing 4 wt% Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) used on the top and bottom, with a central layer compose of 70 wt% LLZTO with P(VDF-TrFE), refers to PTL4. The flexible outer layers enriched in polymer, provide excellent electrode contact, while the rigid middle layer characterized by a high content of LLZTO, effectively impedes lithium dendrite penetration and enhances Li + conductivity. The as prepared PTL4 exhibits high ionic conductivity of 1.02 × 10 −4 S cm −1 at 30 °C, a wide electrochemical window up to 4.9 V, and outstanding mechanical properties (tensile strength of 8.9 MPa and 150 % strain). The symmetric Li|PTL4|Li cells demonstrate stable cycling performance for over 1500 h at 30 °C. Moreover, Li|PTL4|LiFePO 4 cells maintain exceptional capacity of 98 % after 250 cycles at a high rate of 0.5C, accompanied by an average Coulombic efficiency exceeding 99.5 %. Furthermore, the fabricated pouch cells are characterized by their foldability, cutability, and puncture resistance, underscoring their potential to enhance battery safety.
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
·
IF 15.7
Qiu Yu,Sun Mingzi,Wu Jiandong,Chai Chunxiao,Wang Shengwei,Huang Hong,Zhao Xiao,Jiao Dongxu,Xu Shan,Wang Dewen,Ge Xin,Zhang Wei,Zheng Weitao,Song Yujiang,Fan Jinchang,Huang Bolong,Cui Xiaoqiang
The efficiency of the oxygen reduction reaction (ORR) is limited by the scaling relationship in the conventional oxygen associative pathway. To break such limitations, we present an approach to effectively activate the oxygen dissociative pathway through co-confining single p -block (In, Sn, Pb) atoms and interstitial H atoms within Pd metallenes, leading to good ORR performance. PdPbH x metallenes exhibit a high mass activity of 1.36 A mg −1 at 0.95 V (vs. RHE), which is 46.9 times higher than that of the benchmark Pt/C. The minimal performance decay after 50,000 potential cycles confirms a good stability. In situ vibrational spectroscopy investigations and theoretical calculations highlight that interstitial H atoms facilitate the direct dissociation of O 2 while single Pb atoms enhance O 2 adsorption strength. The electroactive PdPbH x metallenes is attributed to the up-shifted Pd-4 d orbitals induced by H and Pb atoms. This research supplies critical inspiration for developing highly efficient ORR electrocatalysts.
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高影响因子
Small
·
2025
·
IF 12.1
Tingting Zhang,Pusen Cao,Rui Zhao,Ruirui Guo,Yujian Chen,Yong Guo,Lu Hong,Yuxia Chen
Hydrochars synthesized from aquatic plants are an effective solution for waste water treatment. In this study, magnetic hydrochar (LSH-NPFe) is prepared from lotus stalks, an N-rich precursor with a porous structure. The N, P co-doped hydrochar obtained via hydrothermal carbonization is loaded with Fe 3 O 4 nanoparticles (NPs). This process regulated the surface activity of the hydrochar, enhanced electrostatic attraction, and anchored Fe ions onto its surface. The sequential doping and loading methods improved the dispersion and stability of Fe 3 O 4 NPs on the hydrochar surface. LSH-NPFe has high adsorption capacity for methylene blue (MB) and Pb 2+ even with salt ions, coexisting adsorbates, and light. LSH-NPFe rapidly removed MB (within 15 min), and adsorption equilibrium is achieved within 30 min. During dynamic adsorption experiments, LSH-NPFe removed >90% of MB from wastewater within ≈6 h. After adsorption, LSH-NPFe is pyrolyzed to immobilize pollutants and mixed with high-density polyethylene to form a carbon-plastic composite. This research explains the interfacial interaction mechanism between heteroatom doping and loading, and proposes practical strategies for using aquatic plants in wastewater treatment and resource recycling. These findings can broaden the applications of biomass - derived carbon materials and advance the industrialization of advanced carbon materials.
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高影响因子
HIGH PERFORMANCE POLYMERS
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2012
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IF 0.884
Kai-Kai Cao,Yu-Jia Zhong,Guo-Hu Guan,Chun-Cheng Li,Wen-Xiang Zhu,Yao-Nan Xiao,Dong Zhang,Liu-Chun Zheng
A rigid-rod copolymer, poly(p-phenylene benzobisoxazole)-block-poly(pyridobisimidazole) (PBO-b-PIPD), was synthesized, and the effect of hydration on the structures and performance of the block copolymer fibers was evaluated. PBO and PBO-b-PIPD as-spun fibers (AS-fibers) were prepared by dry-jet wet spinning, and subsequent thermal treatment in a nitrogen atmosphere was performed. Fourier transform infrared and wide-angle X-ray diffraction were used to characterize the structures of the thermally treated fibers. Mechanical properties of both the AS-fibers and thermally treated fibers were tested, and scanning electronic microscopy was used to observe the fracture surfaces of the fibers from tensile testing. It has been revealed that heat treatment is an effective method to remove the absorbed water to improve the orderly arrangement of chains along the fiber direction, which resulted in enhancement of the tensile modulus of the block copolymer fibers.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2016
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IF 3.014
Wei Chen,Ting Huang,Tian-Yu Liu,Guo-Rong Duan,Xu-Jie Yang,Xiao-Heng Liu
Highly-efficient visible light driven Zn 0.2 Cd 0.8 S/P-C 3 N 4 heterostructure were successfully synthesized via ultrasound-assisted growth route. The as-prepared Zn 0.2 Cd 0.8 S/P-C 3 N 4 nanocomposites consist of mesoporous P-C 3 N 4 nanosheets immobilized with homogeneously dispersed Zn 0.2 Cd 0.8 S NPs. The photocatalytic applications including photoreduction of 4-nitroaniline (4-NA) and water splitting were employed to evaluate their photocatalytic activities of prepared samples. The intimate interfacial contact between the Zn 0.2 Cd 0.8 S nanoparticles and the P-C 3 N 4 nanosheets endows these nanocomposite photocatalysts with superior visible light photocatalytic activity for both the 4-NA reduction and water splitting in comparison with pure Zn 0.2 Cd 0.8 S NPs and bare P-C 3 N 4 NSs, especially Zn 0.2 Cd 0.8 S/P-C 3 N 4 -80. In addition, we found that Zn 0.2 Cd 0.8 S/P-C 3 N 4 -80 sample possesses excellent stability towards selective reduction of 4-NA to 4-phenylenediamine (4-PDA) during the photocatalytic running experiments. We hope that our current research on the facile fabrication and applications of Zn 0.2 Cd 0.8 S/P-C 3 N 4 samples can provide some new insights in the design, synthesis and application of P-C 3 N 4 based nanocomposites.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Zhe Yu,Jiahao Zhou,Yiming Yang,Yuxuan Yang,Xiufang Chen,Fengtao Chen,Wangyang Lu
To enhance the utilization rate of hydrogen peroxide (H 2 O 2 ) at neutral pH for degrading refractory organic pollutants in aqueous solutions, a novel FeOF/MoS 2 catalyst was synthesized hydrothermally. The as-prepared catalyst was systematically characterized using XRD, FT-IR, Raman spectroscopy, XPS, TEM, and BET. Its performance was evaluated in a heterogeneous H 2 O 2 activation system using p -nitrophenol ( p -NP) as a model pollutant. Under neutral conditions, p -NP in aqueous solution was completely removed within 15 min in the FeOF/MoS 2 /H 2 O 2 system, demonstrating the outstanding catalytic activity of FeOF/MoS 2 in activating H 2 O 2 . This enhancement is attributed to an increase in H 2 O 2 utilization from 31% to 67%. Furthermore, FeOF/MoS 2 was loaded into the macropores of a SiC ceramic membrane to construct a catalytic membrane reactor. During continuous filtration of the p -NP solution, a removal rate of 60% was maintained over 12 h, indicating sustained catalytic stability. OH as the dominant reactive oxygen species (ROS) was identified in the degradation process through radical quenching tests and electron paramagnetic resonance (EPR) analysis. A possible degradation pathway was proposed based on intermediates detected by liquid chromatography-mass spectrometry (LC-MS). This work provides an effective strategy for boosting H 2 O 2 -driven catalytic oxidation in wastewater treatment under neutral conditions.
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高影响因子
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