COMBUSTION AND FLAME
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2025
·
IF 6.2
Chunlan Qin,Bingzhi Liu,Weijie Xu,Canbin Lin,Shihao Ning,Zhandong Wang,Qingbo Zhu,Lidong Zhang
The carbon-neutral potential of ammonia is constrained by fundamental combustion barriers, driving the development of advanced bio-fuel blends as kinetic enhancement strategies. In this research, co-oxidation experiments of NH 3 and dimethoxymethane (DMM, CH 3 OCH 2 OCH 3 ) were executed in a jet-stirred reactor (JSR) under 1 atm and 730–1060 K. Through the use of state-of-the-art synchrotron radiation vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS) for online diagnostics, we achieved the first quantification of the species pool in the reaction system, covering C/H/O compounds and various key nitrogen-containing intermediates. The experimentally derived species profiles served as the foundation for refining a kinetic model to describe NH 3 and DMM co-oxidation. The model was updated based on experimental and literature data, with key modifications to the rate constants for H-atom abstraction (DMM, NH 3 , intermediates) and the primary N 2 O consumption pathway. Ultimately, the improved model substantially improves the prediction of NH 3 /DMM co-oxidation species distribution (especially for DMM, NH 3 , CH 3 OCHO, CH 2 O, N 2 O, etc.), and it can also accurately reproduce ignition delay times and laminar flame speeds from previous studies. Additionally, the kinetic analysis further clarified the co-oxidation reaction pathways of NH 3 /DMM, especially highlighting the non-negligible influence of some key reaction pathways on their co-oxidation behaviour, such as CH 3 OCH 2 OCH 3 + NH 2 = CH 3 OCH 2 OCH 2 (CH 3 OCHOCH 3 ) + NH 3 , CO + N 2 O = N 2 + CO 2 , etc. This research provides critical experimental data and a more reliable kinetic model, advancing our understanding of the chemical kinetics underlying NH 3 /DMM co-combustion.
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Journal of Energy Chemistry
·
2025
·
IF 14.9
Song He,Mufan Zhu,Shixuan Dong,Juanjuan Wang,Liqiong Du,Wenkang Zhong,Wenju Xie,Zhiyong Ouyang,Baochang Cheng,Jie Zhao
Understanding the intricate interplay between electrode reactivity and interfacial chemistry is crucial for advancing halide perovskite memristors toward practical applications. Here, we systematically investigate how top electrode materials (Au, Ag, Cu, Al) influence the resistive switching behavior of quasi-2D CsPbBr 3 devices through controlled interfacial engineering. By introducing a novel bilayer electrode architecture, we successfully decouple electrode surface oxidation effects from perovskite/electrode interfacial oxidation reactions for the first time. In situ XRD, photoluminescence spectroscopy, and interfacial XPS analysis reveal that voltage-driven bromide ion migration coupled with electrode-dependent reactions governs the switching mechanisms. Chemically inert Au electrodes show no switching due to insufficient interfacial reactivity, while highly reactive Al electrodes cause irreversible degradation through excessive chemical interactions. In contrast, moderately active Ag and Cu electrodes enable stable bipolar switching with dual negative differential resistance characteristics. The optimal performance emerges from balanced electrode reactivity that facilitates reversible interfacial redox reactions without structural degradation. These findings establish fundamental design principles linking electrode chemical activity to device functionality, providing a rational framework for engineering robust perovskite memristors with enhanced stability and performance for next-generation memory and neuromorphic computing applications.
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Journal of Energy Storage
·
2025
·
IF 9.8
Xin-Ying Ren,Min-Peng Li,Wen-Jie Shi,Wei-Hai Yi,Hong-Yan Li,Cai-Xia Zheng,Xiao-Rui Wang,Mao-Cheng Liu,Yu-Xia Hu
Zinc metal is recognized as a highly promising anode material for aqueous zinc-ion batteries due to its high theoretical capacity and favorable oxidation-reduction potential. Nevertheless, uncontrolled zinc dendrite growth and side reactions pose critical challenges to their practical applications. Herein, the amide groups are introduced into microporous polymers (PIM-CONH 2 , denoted PC) via amine functionalization and applied as a surface engineering coating for zinc anodes. The functionalization of amide groups enhances the zincophilicity of the polymer coating through coordination interactions with Zn 2+ , while also forming hydrogen bonds with water molecules to reduce solvation and prevent side reactions. Additionally, the microporous structure of PIM-CONH 2 facilitates the uniform distribution of Zn 2+ , promoting more even ion flow, enhancing dendrite-free zinc deposition, and improving electrochemical stability. Consequently, the PC@Zn||PC@Zn symmetric battery achieves prolonged cycle stability over 1250 h at 0.5 mA cm −2 /0.5 mAh cm −2 . The PC@Zn||Cu asymmetric battery exhibits stable zinc plating/stripping over 2200 cycles at 2.0 mA cm −2 /1.0 mAh cm −2 and achieves an average CE of 99.8 %, which exhibits exceptional Zn plating/stripping reversibility. The PC@Zn||NVO full battery demonstrates outstanding cycling performance, retaining 72 % specific capacity retention after 2000 cycles at 10 A g −1 . This work establishes a generalizable strategy for high-performance zinc metal anodes through rational design of functional microporous polymer interfaces, opening new avenues for sustainable energy storage systems.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Weibing Tang,Fangjun Huo,Rongbai Ju,Xinghui Gao,Min He,Jie Long,Jingyi Zhang,Siyuan Zhang,Weidong Tian
Mesenchymal stem cell (MSC)-based cell sheet engineering holds great promise for periodontal tissue engineering and restoring damaged tissues. However, achieving optimal regenerative outcomes remains a challenge. This study introduces a novel approach that integrates melatonin-coated nanofiber fragments (mNFs) into dental follicle stem cell sheets (mNF-CSs) to enhance their regenerative potential. The mNF-CSs were engineered using electrospun poly-L-lactic acid (PLLA) nanofiber sheets fragmented into mNFs and coated with melatonin, a potent antioxidant and osteogenic agent. The mNF-CSs exhibited a homogenous morphology with sustained melatonin release over 21 days, providing a prolonged antioxidative effect critical for tissue regeneration. In vitro experiments demonstrated that mNF-CSs significantly reduced intracellular reactive oxygen species (ROS) levels and upregulated antioxidative proteins such as SOD1 and SOD2, resulting in improved cell viability, maintenance of stemness, and enhanced osteogenic differentiation potential of dental follicle stem cells (DFCs). In vivo studies using both a nude mouse and a rat periodontal defect model demonstrated that mNF-CSs promoted alveolar bone repair and periodontal tissue regeneration, with enhanced retention of MSCs at the defect site and increased expression of periodontal tissue-related markers. Transcriptome analysis revealed the upregulation of genes associated with biomineralization, odontogenesis, and autophagy pathways in mNF-CSs, suggesting their ability to modulate crucial cellular processes for tissue regeneration. Overall, mNF-CSs offer a promising strategy for enhancing periodontal tissue engineering applications, providing a platform for improving bone grafts and regenerative medicine strategies in the context of periodontal diseases.
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INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Jiahuan He,Chunhong Zhang,Yingying Wang,Yuning Gong,Lanyue Zhang,Hao Liu,A. Yuhui,Lei Shang
Advancing bio-based non-isocyanate polyurethanes (NIPUs) is vital for fostering sustainable development. This study, inspired by the concept of "rigid and flexible" successfully utilized resveratrol , epoxidized soybean oil, and carbon dioxide (CO 2 ) to produce a novel type of NIPUs (CRSOP) with outstanding mechanical properties, recyclability, and adhesive properties . Test results reveal that CRSOP demonstrates a tensile strength of 20.85 MPa and an elongation at break surpassing 160 %. The synthesized CRSOP shows excellent recyclability, with a recycling efficiency of over 80 % even after three cycles. Additionally, the rich polar groups in CRSOP contribute to its exceptional adhesion on diverse substrates such as copper (5.29 MPa), steel (7.48 MPa), aluminum (6.12 MPa), glass (4.71 MPa), and polytetrafluoroethylene (1.75 MPa). Even after prolonged immersion in organic solvents , CRSOP maintains a lap shear strength comparable to the initial value, demonstrating outstanding environmental tolerance. This paper showcases a superior-performing NIPUs derived from renewable resources and simultaneously expands its extensive application in the adhesive field.
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2025
·
IF 3.1
Dong-shuo Meng,Guo-jing Li,Shen-guo Sun,Chun-xin Ma,Tian-quan Zhu,Yu Liu
A series of GC-FID and HPLC-RID methods were developed and rigorously validated for the detection of various aldehyde and ketone impurities, including 5-methyl-2-hexanone and 5-methyl-3-hexen-2-one, as well as quaternary ammonium salt impurity that lack UV absorption, during the synthesis of tetrabenazine. Six novel compounds, three have not been previously reported, were synthesized and their structures confirmed. This was achieved through a comprehensive investigation into impurity transmission chains and their clearance throughout the synthesis process. The limits for all detected impurities, which included a total of twelve related substances, were established at approximately 0.1 %. The LOD for the developed analytical methods ranged from 0.3 μg mL −1 to 12.5 μg mL −1 .
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高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Liuyue Li,Jixiang Zhang,Yifang Li,Bianhua Liu,Jiali Yu,Nian Li,Zhenyang Wang,Jun Zhao
Two-dimensional (2D) nanomaterials have attracted many researchers to explore the effect of ice control and rapid deicing due to their functional groups, large specific surface area, and excellent photothermal properties. However, the impact of size effects on ice crystal formation, growth, and photothermal performance has been rarely explored. Here, graphene oxide nanosheets (GO NSs) with controllable sizes were used as a representative of 2D nanomaterials to probe the effect of size on ice crystal regulation and rapid rewarming in cell cryopreservation. All sizes of GO NSs exhibited notable inhibitory effects on ice crystal size during the recrystallization process. Significantly, when the size of GO NSs was smaller than a certain size (<150 nm), they showed a more significant ice recrystallization suppression effects, which could reduce the ice crystal size to about 17% of that of pure water. Meanwhile, the photothermal experiments also indicated that smaller-sized GO NSs exhibited better photothermal behavior, with 90 nm GO NSs (GO-90) heating to 70 °C in just 1 min induced by an 808 nm laser (2 W/cm2). Furthermore, applying GO-90 (200 μg/mL) to cell cryopreservation, cell viability could reach 95.2% and 93% with a low amount of traditional cryoprotectant (2% v/v DMSO) for A549 cells and HeLa cells after recovery, respectively. With the assistance of a 808 nm laser, the rewarming time was also shortened to 20 s, greatly improving the rewarming rate. Our work associated specific sizes of 2D nanomaterials with their ice growth inhibition behaviors during recrystallization and photothermal properties to synergistically improve cell cryopreservation efficiency, providing guidance for effectively designing novel 2D nanomaterials for collaborative control of ice crystals in cell cryopreservation.
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高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Haipeng Su,Jingjing Wang,Chengjie Deng,Shuai Zou,Hao Luo,Jing Liu,Hao Li,Xing Zhou,Jianbing Zhang,Daoli Zhang,Jiang Tang,Liang Gao
Interfacial defects and poor mechanical robustness critically limit the performance of colloidal quantum dot (CQD) photodiodes for infrared imaging. Here, we introduce a bifunctional organosilane, (3-mercaptopropyl) methyldimethoxysilane (MDMS), as an interfacial layer to simultaneously address these challenges in inverted PbS CQD photodiodes. MDMS molecules form robust covalent bridging at the CQDs/electron transport layer (ETL) interface through thiol-based coordination and hydrolysis-condensation into a cross-linked siloxane network. This interface engineering not only reinforces mechanical adhesion (achieving 5B rating in ASTM D3359 tests vs. 0B/1B for C 60 controls) but also provides an ideal nucleation surface for ALD-grown SnO 2 ETL, suppressing island-like growth and interfacial defects. The optimized devices deliver a specific detectivity of 2.37×10 12 Jones at 1550 nm under 0 V while maintaining 79% EQE under −0.1 V, with dark current reduced by >50% compared to C 60 -based controls. Monolithic integration with a silicon ROIC yields a SWIR imager with outstanding photoresponse non-uniformity (2.8%) and spatial resolution (26 lp/mm at 50% MTF), demonstrating silicon wafer perspectivity and material discrimination. This work provides an efficient strategy for addressing interfacial issues in CQD optoelectronics.
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高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Chun Zhou,Jiqing Tan,Yongsheng Hu,Sixue Tang,Jinsong Cheng,Chengxi Zhang,Wei Xie,Xiaoqin Shen
Robust helicity that can be generated intrinsically and controlled on ultrafast timescales would open attractive opportunities for terahertz photonic switching and chirality-sensitive quantum devices. Yet such control remains challenging because the intrinsic chiral perturbation of molecular emitters is usually too small to establish a robust helicity bias that can break symmetry and sustain the ultrafast emergence and switching of a helicity-selected optical state. In this study, we address this challenge by engineering chiral R/S quasi-2D perovskite microcavities (R/S-2DPMs) and establishing a hierarchical framework for chirality amplification in this platform. The resulting R/S 2DPMs support single-mode lasing with quality factors on the order of 10 3 . Polarization-resolved measurements show pronounced dissymmetry amplification from molecule dissymmetry of g mol ∼ 10 −4 to spontaneous emission dissymmetry of g sp ∼ 10 −2 and then through stimulated emission dissymmetry of g laser ∼ 0.78. Time-resolved spectroscopy further reveals opposite ultrafast helicity switching on 1 ∼ 3 ps timescales in R/S-enantiomeric microcavities. These results establish chiral quasi-2D perovskite microcavities as a compact platform that converts weak microscopic chirality into robust circularly polarized lasing and ultrafast helicity switching, opening new opportunities for chiral photonics and helicity-programmable coherent light sources.
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POLYMER
·
2026
·
IF 5.1
Shang Peng,Zhaonan Wang,Ding Huang,Kangjie Zhou,Yong Liu,Fan Cheng,Hai Liu
Cellulose nanofiber (CNF) aerogels are promising sustainable porous materials, but their mechanically weak sheet-like networks and intrinsic flammability limit practical deployment under demanding conditions. Herein, we report a minimal-polymer interfacial densification strategy that uses only approximately 2 wt% aramid nanofibers (ANFs) to reinforce and fire-protect CNF aerogels. Through an in situ sol–gel–coating process, the ANF sol is converted into a compact interfacial coating on CNF sheets, yielding a hierarchical ANF–CNF–ANF sandwich skeleton that stabilizes weak inter-sheet junctions while preserving the ultralight porous structure. This optimized skeleton endows the aerogel with a compressive strength of 219 kPa and a modulus of 618 kPa, corresponding to 2.6- and 15-fold improvements over pristine CNF aerogel, respectively, while maintaining a low thermal conductivity of 37.1 mW m −1 K −1 . The ANF-modified aerogel also exhibits self-extinguishing behavior, an increased limiting oxygen index, and reduced heat and smoke release, demonstrating improved fire resistance. This study provides a facile minimal-polymer interfacial engineering route for developing mechanically robust, fire-safe, and thermally insulating bio-based aerogels.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Ming Zeng,Xianzhu You,Xiangrong Dai,Hua Zhou,Zhiyong Liao,Ying Tan
A renewable starch-based zwitterionic coating was developed. • Antifouling functionality and covalent surface anchoring were integrated into one material. • Siloxane-mediated covalent bonding enabled stable coating attachment to substrates. • The coating reduced biofouling and thrombus formation under dynamic blood flow. Blood-contacting medical devices often suffer from thrombosis and bacterial infections. While zwitterionic polymers exhibit excellent antifouling properties, their conventional syntheses require complex routes and toxic metal catalysts. Herein, we present a metal-catalyst-free strategy for fabricating a renewable starch-based sulfobetaine zwitterionic coating (OSt-SBSi), in which zwitterionic antifouling groups and hydrolyzable silane groups are incorporated into the same polymer backbone. Crucially, the coating is stably immobilized on substrates through multi-site siloxane-based covalent anchoring, overcoming the delamination issues of physical adsorption. Concurrently, zwitterionic moieties and the starch backbone synergistically form a tightly bound hydration layer. This robust barrier imparts broad-spectrum biofouling resistance, drastically reducing the adhesion of proteins, cells, platelets, and pathogenic bacteria. Consequently, the OSt-SBSi coating demonstrates excellent hemocompatibility and effectively prevents thrombus formation in a dynamic ex vivo blood circulation model, maintaining anticoagulant activity and structural integrity even after 7 days of aqueous immersion. This scalable, eco-friendly strategy offers a promising approach for the development of next-generation blood-contacting biomedical devices. Download: Download high-res image (165KB) Download: Download full-size image
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ACS Applied Polymer Materials
·
2026
·Vol. 8
·期 14
·11602-11617
·
IF 5.2
Xu Yue,Du Yanwei,Liang Jingshi,Ding Xiaochu,Zhang Chunling,Zhang Zhihui,Liu Bo
Endogenous signaling molecules are essential for coordinated
wound
healing, yet current donor-based dressings typically provide only
single-mediator delivery with limited release duration. Here, a multifunctional
hydrogel dressing, HEVCTM, is developed by free radical copolymerization
of N -hydroxyethyl acrylamide (HEAA) with a hydrogen
peroxide (H 2 O 2 ) releasing donor (VIM-CAT) and
a hydrogen sulfide (H 2 S) releasing donor (TBA-MA). The
hydrogel enables temporally programmed release, with rapid H 2 O 2 delivery within 24 h for early stage antibacterial
action and sustained H 2 S release for up to 7 days to alleviate
inflammation and promote angiogenesis during later healing stages.
HEVCTM exhibits potent antibacterial activity against Escherichia coli (99.6%) and Staphylococcus aureus (99.97%), significantly enhances macrophage
M2 polarization (52.4%), and shows favorable antioxidant, hemostatic,
adhesive, and pro-angiogenic properties. Moreover, in an infected
mouse wound model, HEVCTM significantly accelerated wound healing
and promoted tissue regeneration. This work provides a bioactive hydrogel
platform that matches the dynamic requirements of wound healing and
effectively accelerates tissue repair.
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