INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Yuqing Li,Zexuan Wu,Di Ma,Yushuo Zhang,Jing Zhang,HongWei Zhan,Yanqiang Kong,Lu Yu,Yongping Yang
Ruthenium (Ru)-based catalysts are promising for acidic oxygen evolution reaction (OER) in proton-exchange membrane water electrolysis (PEMWE), yet they suffer from severe corrosion and over-oxidation. Herein, we synergistically integrated Ru/RuO 2 heterostructures with pre-introduced oxygen vacancies (O V ) within a porous carbon (PC) framework derived from ZIF-8. Theoretical calculations and mechanistic spectroscopy confirmed that the heterointerfaces and O V regulate electronic distribution, lower Ru oxidation state, and optimize intermediate adsorption, thereby switching the reaction pathway from detrimental lattice oxygen mechanism to favorable adsorbate evolution mechanism. The resulting O V -Ru/RuO 2 @PC catalyst exhibits a low overpotential of 234 mV at 10 mA cm −2 and ultra-long stability exceeding 1000 h. Assembled in PEMWE, it delivers 1 A cm −2 at 1.77 V with a negligible degradation rate of 59 μV h −1 over 500 h, surpassing commercial RuO 2 . This work establishes a biomimetically inspired strategy to address the activity-stability trade-off of Ru-based OER catalysts for practical PEMWE.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Liwei Ma,Heting Li,Shaonan Shan,Yanqing Qin,Xu Yang,Guoqiang Li,Guojie Zhang
Wet Fe(II)EDTA complexation is a promising technology for NO removal, but its practical application is severely hindered by O 2 -induced oxidation of Fe(II)EDTA and inefficient regeneration of Fe(II)EDTA–NO. Herein, an oxygen-vacancy-rich BiOCl/g-C 3 N 4 S-scheme heterojunction with interfacial Bi–O–C covalent bonds was constructed for oxygen-resistant photocatalytic–complexation denitrification. Structural characterizations and density functional theory calculations confirmed that Bi–O–C bonds served as atomic-level charge-transfer channels, strengthening interfacial coupling and promoting directional S-scheme charge separation. This configuration preserved strongly reductive electrons on g-C 3 N 4 for the reduction of Fe( III )EDTA and Fe(II)EDTA–NO, while retaining oxidative holes on BiOCl. Meanwhile, oxygen vacancies on BiOCl acted as preferential O 2 adsorption and activation sites, converting O 2 into ·O 2 − and thereby transforming O 2 from a competitive oxidant into an electron-buffering species that suppresses BiOCl photocorrosion and regulates interfacial redox cycling. The optimized 20BCN–Fe( II )EDTA system achieved an average NO removal efficiency of 88.92% under 14% O 2 and maintained above 80.02% efficiency after 30 cycles. Product analysis revealed a reduction-dominated NO conversion pathway, with NH 4 + and N 2 as the major reduced nitrogen products, a total reduced-product selectivity of 91.9%, and a nitrogen recovery of 94.4%. Kinetic analysis confirmed that NO absorption proceeded in a fast reaction regime enhanced by interfacial redox reactions. This work provides an atomic-level strategy for designing oxygen-resistant photocatalytic systems for wet denitrification under realistic flue-gas conditions.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Lan Zhang,Wanran Huang,Xi Peng,Peixin Jiang,Jianshan Ye,Minglei Yan,Zhiwei Lu
The high efficiency, low cost, and rapid preparation of non-noble metal oxygen reduction reaction (ORR) electrocatalysts are of great significance for the large-scale application of energy conversion equipment. Herein, PdNi alloy nanoparticles dispersed within the multiwalled carbon nanotubes (MWCNTs) composite (PdNi-PVP/MWCNTs) were synthesized via an in situ self-assembly strategy, in which polyvinylpyrrolidone (PVP) serves as an N and C source, and MWCNTs act as conducting supports to enhance structural integrity and electron transport. Notably, the synthesis relies solely on low-temperature oil-bath stirring, enabling rapid batch production without the need for high-temperature calcination-a distinctly green and scalable approach. In this system, PVP acts as a capping agent that facilitates the uniform anchoring of PdNi alloy nanoparticles on MWCNTs, effectively suppressing particle aggregation, thereby increasing the surface roughness and specific surface area to expose more active sites. Impressively, benefiting from the unique structure, high crosslinking, and high conductivity that minimize catalyst separation and aggregation, this new type of electrocatalyst exhibited an impressive ORR onset potential of 0.97 V, half-wave potential of 0.83 V, larger current density of 4.3 mA∙cm −2 , and existing good corrosion resistance to drive a relatively stable performance, which are superior to commercial Pt/C in alkaline media. This study demonstrates the successful design of an environmentally benign and cost-effective ORR electrocatalyst, highlighting its promising potential for practical applications in energy conversion technologies.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.9
Baozhu Wang,Huixin Hou,Xindi Yang,Ting Pan,Yuan Zhou,Qi Xu,Kaiyan Li,Kemei Pei,Miao Su,Zhijun Zhang
A core-shell TiO₂@SiO₂@CeO₂ (TSC) nanozyme was designed to mitigate UV-induced skin photoaging. • TSC exhibits enhanced UV absorption and superior broad-spectrum UVA/UVB shielding performance. • CeO₂ shell endows TSC with SOD-like and catalase-like activities, enabling catalytic ROS scavenging. • TSC effectively reduces intracellular ROS levels and protects HaCaT cells from UVA-induced phototoxicity. • In vivo mouse model confirms TSC's excellent anti-photoaging efficacy. Skin photoaging, predominantly induced by UV light exposure, is a significant external factor to the aging process of the skin. Current anti-photoaging strategies primarily utilize semiconductor materials (e.g. TiO 2 , ZnO) as UV light absorbers. However, these materials also generate reactive oxygen species (ROS) during UV absorption, potentially causing oxidative damage to skin cells. The development of UV absorption semiconductors with limited ROS generation is highly desired. Herein, inspired by the enzyme-mediated ROS clearance in living organisms, we propose to employ antioxidant nanozyme to build skin friendly anti-photoaging semiconductor nanostructures. As a proof of concept, CeO 2 nanozymes with dual enzyme activities were coated on the surface of TiO 2 semiconductor to build semiconductor-nanozyme core-shell nanostructures. The obtained TiO₂@SiO₂@CeO₂ (TSC) core-shell nanostructures exhibited enhanced UV light absorption capacity. They also possess significant SOD- and Catalase- like activity with the value of 5.63 U/mg and 5.11 U/mg respectively, and some of the catalytic kinetic parameters comparable to those of natural enzymes. The catalytic mechanisms were deciphered by the density functional theory (DFT) calculation, revealing that the (111) and (220) crystal planes contribute most to the enzyme-like activity of CeO 2 . Besides, TSC could significantly reduce the UV light triggered intracellular ROS generation, and increased cell activity by 46% compared with the TiO 2 group. Moreover, TSC exhibited excellent anti-photoaging efficacy in mouse skin irradiation models. This study presents a safe and highly efficient nanostructure for skin anti-photoaging and offers a nanozyme-based solution to address the ROS-related side effects of semiconductor materials in biomedical applications.
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Surfaces and Interfaces
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2026
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IF 6
Zihan Zhang,Fan Yang,Zhichen Chen,Jiao Bai,Zhe Zheng,Cigang Xu,Guoshu Zhang,Yan Shi,Haowei Yang
Currently, stable thermal management significantly relies on the use of adaptive phase-change materials, while the photothermal regulation caused by surface structures is severely undervalued. As a result, the operating temperature window of self-adaptive material is limited by the phase-change temperature of the material, making it difficult to achieve large-scale applications. Inspired by the structure of butterfly wings, this study designs a silica-based inverse-opal structure to achieve stable thermal management. Results show porous films achieve a max. cooling of 7.3 °C vs. glass, with a 4.3 °C difference between pore sizes. Altering pore size regulates Mie scattering of light, enabling switchable temperature control (51.5–53.5 °C on sample vs. 49∼56.7 °C on glass). This provides a guideline for fabricating self-adaptive surfaces, with significant potential in bionic skin, building energy efficiency, and thermal management of electronics. Download: Download high-res image (452KB) Download: Download full-size image
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MICROCHIMICA ACTA
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2026
·Vol. 193
·期 9
·631
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IF 5.4
Li Jiejun,Wang Hui,Li Xinyi,Zhao Pengcheng,Fei Junjie,Xie Yixi
Amaranth (AM) is a widely used synthetic azo food colorant that poses severe toxicological risks upon excessive consumption, creating an urgent need for its ultra-sensitive detection. We report a high-performance electrochemical sensor based on the electrostatic co-aggregation of V 2 O 3 @NC and NHCS for the high-fidelity quantification of AM. A unique “capture-and-catalysis” synergistic mechanism governs this composite interface. Specifically, the highly porous NHCS framework provides exceptional capacity to capture and pre-concentrate target molecules while acting as a highly conductive “electronic bridge.” Subsequently, the abundant mixed-valence (V 3+ /V 5+ ) sites of the V 2 O 3 @NC serve as a robust electrocatalytic engine to drive the catalysis, significantly amplifying the AM oxidation signal. Combining electrochemical kinetic analysis with DFT calculations (including HOMO and MEP), we reveal that this electrocatalytic evolution proceeds via a directional 1 H + /2e − transfer mechanism. Under optimal conditions, the V 2 O 3 @NC/NHCS sensor exhibits a broad linear range (0.01–12 µM) and an extremely low LOD of 0.80 nM. Practical analysis of commercial beverages yielded recoveries of 95.0%–104.3%, with results perfectly matching orthogonal UV-Vis cross-validation. This work provides a robust platform for azo dye screening and profound insights into the rational design of “capture-and-catalysis” composite interfaces. Graphical abstract
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Journal of Pharmaceutical Analysis
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2026
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IF 11.2
Yi Liu,Haocheng Feng,Yi Chi,Siyan Zhu,Guting Gao,Enze Zhang,Liang Guo,Yang Pan,Po Hu
Black soybean oil (BSO) is a traditional Chinese medicine (TCM) for inflammatory skin disorders, yet its active basis remains unclear. Inspired by BSO preparation's similarity to carbon dot synthesis, we isolated fluorescent carbon-based nanoparticles (BSO-CNPs) from BSO. Analyses confirmed their characteristic nanostructure and fluorescence. Functionally, BSO-CNPs showed potent antioxidant activity, scavenging reactive oxygen species (ROS) and restoring cell viability under in vitro oxidative stress. In murine models of atopic dermatitis, topical BSO-CNPs alleviated clinical symptoms, reduced epidermal hyperplasia, suppressed mast cell infiltration, and downregulated inflammatory cytokines. Mechanistically, BSO-CNPs attenuate the NOD-like receptor family pyrin domain containing 3 (NLRP3)/caspase-1/gasdermin D (GSDMD) pyroptosis pathway by suppressing mitochondrial ROS and stabilizing lysosomal function. Furthermore, BSO-CNPs demonstrated high biosafety in vitro and in vivo . These findings elucidate the material basis of BSO’s therapeutic effects and highlight BSO-CNPs as a novel nanotherapeutic candidate for atopic dermatitis, bridging traditional herbal medicine with modern nanomedicine.
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ACS Applied Materials & Interfaces
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2026
·Vol. 18
·期 33
·44984-45002
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IF 7.8
Wang Shuaihang,Ji Zhonghao,Shen Ding,Liu Siyu,Hao Jingbin,Cheng Qi,Jia Bao,Guo Liang,Shang Jie,Chen Kai,Han Meng
Currently, the repair of bone defects faces multiple challenges, including insufficient angiogenesis and limited osteogenic differentiation capacity, which pose significant obstacles to treatment. In this study, a ternary composite scaffold composed of PCL-nHA-nMgO (PHM) was fabricated using 3D printing technology. After surface modification with a photothermal polydopamine (PDA) coating, a PHM@PDA composite scaffold was obtained. Metformin (Met) and PDA were loaded into GelMA hydrogels to produce GPM hydrogels. The GPM hydrogels were then packed into the PHM@PDA composite scaffolds, resulting in near-infrared region-I (NIR-I)-responsive PHM@PDA/GPM composite scaffolds. The outer GPM layer serves as a three-dimensional in vivo-like microenvironment, providing physical transport channels for cellular nutrient exchange. Upon stimulation by NIR-I, the scaffold enables the dynamic release of Mg 2+ and Met, upregulates the expression of the VEGF and KDR, accelerates vascular network reconstruction, and creates a mild microenvironment conducive to cell proliferation. Furthermore, by activating the PI3K/AKT signaling pathway, it promotes the expression of osteogenesis-related factors (such as transcription factor Sp7, alkaline phosphatase, and osteocalcin), thereby accelerating the osteogenic differentiation process. In vivo animal experiments, micro-CT and tissue staining confirmed that, under near-infrared light (NIR-I) stimulation, this scaffold significantly increased bone mineral density, trabecular bone thickness, and trabecular bone count and demonstrated excellent angiogenic effects. In summary, this NIR-I-responsive composite scaffold can meet the dual requirements of reconstructing the vascular network and promoting osteogenic differentiation, enabling personalized precision therapy and offering a promising new treatment strategy for complex bone defects where vascular regeneration and osteogenic differentiation are challenging.
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PubMed
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Li Xiaoguang,Chen Jia,Li Aoqi,Li Jing,Wang Mingyu,Li Liangsheng,Shangguan Enbo
A novel in situ self-sulfidation approach was devised to fabricate ZnO/ZnS/C ternary nanocomposites as highly stable anodes for alkaline Zn–Ni batteries. Zinc sulfate acted as a dual-purpose precursor, providing both zinc and sulfur, whereas acrylamide served as the carbon source and in situ reductant. In a single-step carbothermal pyrolysis at 800 °C, the carbon matrix converted sulfate ions to sulfide, facilitating the simultaneous generation of electrochemically active ZnO, a protective ZnS layer, and a conductive carbon network during a single thermal treatment. The optimized ZnO/ZnS/C-2 electrode exhibited a discharge capacity of 576.8 mAh g −1 after 600 cycles at 1 C and maintained 513.2 mAh g −1 at 15 C. Under identical conditions at 10C, the ZnO/ZnS/C-2 electrode delivered a capacity of 545.3 mAh g −1 , which is 41.5% higher than that of commercial ZnO (385.4 mAh g −1 ). Upon the current density reverting to 0.2 C, it regained 96.6% of its original capacity, indicating remarkable reversibility. Post-cycling scanning electron microscopy images validated the successful inhibition of zinc dendrite proliferation. The performance improvements arise from the synergistic combination of the protective ZnS layer, the interconnected conductive carbon framework, and the advantageous ZnO/ZnS heterointerface, which collectively boost structural stability and charge transfer kinetics.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 23
·1820
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IF 3.2
Liu Yuhao,Zhang Junjie,Liu Hongli,Cai Yani,Chu Peng,Guo Lei,Ma Yongshuai,Yan Jifeng,Guo Xiang,Zhao Weixu
Microwave absorption materials play a vital role in electromagnetic compatibility applications, where electromagnetic coupling between dielectric and magnetic components is crucial. However, in most reported systems, the magnetic loss capability is generally weaker than dielectric loss. To address this issue and achieve ultra-high loading of magnetic particles, concave SiC fibers were designed and fabricated via electrospinning, providing abundant active sites and enhanced surface curvature for effective deposition of magnetic components.Fe 3 O 4 nanoparticles were in situ grown on SiC fibers via a hydrothermal method to prepare lightweight Fe 3 O 4 /SiC composite fiber microwave absorbers. Systematic investigations reveal that an appropriate Fe 3 O 4 loading uniformly covers the fiber surface, forming abundant heterointerfaces and enhancing dielectric and magnetic loss.Query A high Fe 3 O 4 loading of up to 90 wt% was successfully achieved in the composite system.The Fe 3 O 4 -1:2 sample achieves a minimum reflection loss (RLmin) of−40.62 dB at 6.95 GHz with a 4.0 mm thickness, effectively absorbing over 99.99% of incident electromagnetic waves and exhibiting a wide absorption bandwidth. These results indicate that the synergistic dielectric–magnetic loss and multi-interface polarization mechanisms significantly improve electromagnetic wave absorption, providing a promising strategy for designing lightweight, high-performance ceramic-based absorbers.
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ChemSusChem
·
2026
·Vol. 19
·期 16
·e70968
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IF 5.9
Hengyi Zhang,Piyu Gong,Yi Du,Linxiu Dai,Changhua An
Lithium oxalate (Li 2 C 2 O 4 ) is a promising cathode prelithiation reagent but suffers from a high activation voltage (>4.6 V). Herein, we establish a component–electronic structure–activity correlation by constructing a series of transition metal-loaded N,S co-doped carbon catalysts (M/NSC, M = Fe, Co, Ni, Ru, Rh, Ir). Distinct catalytic behaviors originate from metal-dependent electronic structures and their interactions with N/S co-doped carbon. Interestingly, the Fe-group metals exhibit stronger electronic coupling and higher redox flexibility than 4d/5d noble metals, resulting in more effective activation of Li 2 C 2 O 4 . The Co/NSC achieves the lowest decomposition voltage (4.17 V), attributed to uniform Co dispersion, optimized Co–N/S coordination, and defect-induced charge-transfer enhancement. The Co/NSC–Li 2 C 2 O 4 composite ensures nearly complete decomposition and delivers superior prelithiation performance. When applied to commercial LFP and NCM9055 cathodes, the Gr|| LiFePO 4 system shows a 22% capacity increase, meanwhile the Gr/SiC||NCM9055 cell achieves an initial coulombic efficiency (ICE) enhancement from 77% to 85.6%. This work highlights electronic–structure engineering as an effective strategy for enabling practical lithium compensation in high-energy lithium-ion batteries. Graphical Unlocking the structure–activity relationship of Li 2 C 2 O 4 prelithiation: uniformly dispersed Co nanoparticles on N,S co-doped carbon creates abundant active sites, Co–N/Co–S coordination modulates electronic structure, and defect-rich carbon ensures fast charge transfer. These structural advantages reduce decomposition voltage to 4.17 V and exhibit a capacity enhancement of 22%.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Shuhao Sun,Beibei Cai,Rui Tian,Junjie Xu,Dongying Wang,Lei Zhang,Fei He
Visible-light-driven photocatalysis offers a sustainable strategy to eliminate indoor volatile organic compounds (VOCs) like acetaldehyde (AA), thereby improving indoor air quality. Although heterojunctions based on MoS 2 quantum dots (MQDs) attract attention for oxidation reactions, MQDs/WO 3 composites for VOC removal remain largely underexplored. In this study, MQDs/WO 3 heterojunctions were constructed by coupling MQDs with monoclinic (m-WO 3 ) and hexagonal (h-WO 3 ) phases to systematically investigate phase-dependent charge transfer, reactive oxygen species (ROS) generation, and AA degradation pathways. Comprehensive characterizations indicated that MQDs incorporation increased oxygen vacancies, promoted ROS generation, and enhanced visible-light absorption. Furthermore, PL and in situ DRIFTS analyses revealed that MQDs/m-WO 3 exhibited superior electron-hole separation and stronger surface reactivity than the h-WO 3 system. DFT calculations confirmed MQDs as the primary adsorption sites for indoor VOCs, with MQDs/m-WO 3 exhibiting stronger AA adsorption. Consequently, the optimized 0.5MQDs/m-WO 3 demonstrated enhanced AA degradation and mineralization under visible light, exhibiting excellent stability under indoor-relevant operating conditions. This work provides profound insights into interface-regulated charge transfer and offers a promising material design strategy for advanced indoor air purification.
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