CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Chao Tang,Ziyu Li,Jun Zhao,Hang Yang,Weizheng Jia,Wencan Cheng,Xuan Li,Xin Xia,Wangjing Ma
Zr-Zn/ZnO catalyst was synthesized for microwave-assisted PET glycolysis. • Atomic-level Zr incorporation regulates Zn coordination environments and Lewis acidity. • Near-quantitative recycling of PET waste was achieved. • Synergistic Zn Zr sites facilitate PET glycolysis toward high-purity BHET (99.8%). • This strategy can potentially be applied to diverse real-world PET waste. Closed-loop recycling of polyethylene terephthalate (PET) into bis(2-hydroxyethyl) terephthalate (BHET) monomers represents a promising approach to plastic waste valorization, yet its application is constrained by low monomer purity and limited feedstock compatibility. Herein, a high-performance Zn-Zr/ZnO catalyst was synthesized via a simple impregnation method. Under microwave-assisted glycolysis conditions, this catalyst enables the conversion of PET to BHET with a yield of 94.2% and purity of 99.8%. The system demonstrates stable recyclability over 10+ reaction cycles and reduces energy consumption by 60% in the depolymerization process compared with conventional electric furnace-based thermal catalysis. The recovered BHET can be repolymerized into a PET-like polymer, establishing a closed-loop material cycle. Notably, the method achieves efficient monomer conversion across a range of real-world PET plastics and fiber products, with successful implementation in a 150-g scale-up experiment. Mechanistic studies indicate that Zr and Zn species synergistically promote PET depolymerization to BHET. This work presents an efficient and stable route for high-value closed-loop recycling of waste PET, which could support the advancement of the plastic circular economy. Download: Download high-res image (317KB) Download: Download full-size image
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JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2026
·Vol. 41
·期 5
·1438-1449
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IF 1.4
Zhu Dan,Zhao Huayan,Zhang Bowen,Cheng Bo,Yang Jing,Li Binbin,Zhou Jian,Wang Xinyu
Brittleness remains one of the primary barrier limiting the clinical application of zirconia-toughened alumina (ZTA) ceramics in total hip arthroplasty (THA). To address this limitation, we developed a novel series of ZTA ceramics through an energy-efficient microwave sintering process, employing ZnO at concentrations of 0–2.5 wt% as a multifunctional sintering additive. We systematically investigated the effects of ZnO content on phase composition, microstructure, and mechanical performance enhancement were systematically elucidated. The results showed introducing ZnO into ZTA significantly enhanced its overall performance. At the optimal ZnO content of 0.5 wt%, the composite achieved a relative density of 98.41%, a Vickers microhardness of approximately 1903.2 HV, and a flexural strength of 882.34 MPa. The enhancement of these properties stems from the dual role of zinc oxide: promoting densification and grain refinement. The in situ formed plate-like ZnAl 2 O 4 spinel grains contribute to toughening through crack deflection and the pull-out effect. However, excessive introduction of spinel phases was found to compromise the overall material performance. Microwave sintering significantly improved the densification of ZTA ceramics at 1 500 °C compared to conventional sintering methods. Our findings demonstrate the potential of ZnO incorporation and microwave sintering in improving the properties of ZTA ceramics and provides a new strategy for the rapid preparation of high-performance ZTA ceramics.
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APPLIED CATALYSIS A-GENERAL
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2026
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IF 4.8
Wenjing Song,Zhenhao Xiao,Rui Fu,Dafang He,Jiawei Xia,Xinmin Li,Guangyu He,Weizuo Li,Haiqun Chen
Using an imine-coordination-mediated PSM-pyrolysis strategy to fabricate Mo 2 N-ZnO based catalyst (MZ/CNP- icm ). • The MZ/CNP- icm catalyst was applied for CO 2 cycloaddition reaction. • High activity ascribed to more Mo 2 N with synergistic interaction between Mo 2 N and ZnO. The cycloaddition of CO 2 with epoxides into cyclic carbonates represents an atom-economical and sustainable pathway for carbon utilization, yet it requires catalysts capable of synergistically activating both substrates. Herein, a heterostructured Mo 2 N–ZnO catalyst embedded in N,P-doped carbon (MZ/CNP- icm ) is constructed via an imine-coordination-mediated post-synthetic modification and pyrolysis strategy using a 2D imine-rich Zn-MOF (Zn- hmta ) and phosphomolybdic acid (PMo 12 ). The imine coordination enables molecular-level anchoring of Mo species and creates a nitrogen-rich microenvironment, which directs the phase evolution toward Mo 2 N rather than inactive MoO 3 during pyrolysis. As a result, well-defined Mo 2 N-ZnO heterointerfaces and a defect-rich carbon matrix are formed. Under mild conditions (75 °C, 1 MPa CO 2 ), the catalyst achieves nearly 100% conversion and selectivity, together with a significantly enhanced turnover frequency compared to control samples. Mechanistic studies combining in-situ DRIFTS and 1 H NMR reveal that Zn 2+ sites activate epoxides while Mo 2 N activates CO 2 , and the heterointerface enables efficient coupling of intermediates. The catalytic enhancement originates from the synergistic interplay between interfacial electron transfer and defect-rich active sites. This work provides a general strategy for regulating phase evolution and interfacial structure in MOF-derived catalysts for efficient CO 2 conversion. Download: Download high-res image (198KB) Download: Download full-size image
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Nano Materials Science
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2026
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IF 20.5
Meng Mei,Kaixin Cheng,Yi Zheng,Bo Yao,Juan Wu,Zilian Zhang,Xinxin Xing,Yude Wang
Early warning of thermal runaway in lithium-ion batteries (LIBs) is a critical challenge for ensuring operational safety. Conventional monitoring approaches based on temperature and voltage are often limited by delayed response and susceptibility to environmental interference. In contrast, gas monitoring presents a promising alternative. Key electrolyte components such as dimethyl carbonate (DMC) are released during the early stages of thermal runaway, preceding gases like hydrogen and carbon monoxide, offering a unique opportunity for early warning. However, current DMC gas sensors are often hampered by the high operating temperatures and the sluggish response/recovery dynamics. In this work, we developed a gas sensor based on a Co 3 O 4 -ZnO p-n heterojunction. Under the operating temperature of 160 °C, the sensor exhibits a high response value of ∼110 to 500 ppm DMC, along with rapid response and recovery times (2 s and 15 s, respectively), as well as excellent selectivity against interfering gases such as H 2 , CO, and so on. The sensor also demonstrates stable performance over 32 d. Material characterization and theoretical calculations reveal that the p-n heterojunction effectively enhances carrier density and oxygen vacancy concentration, thereby facilitating DMC adsorption and electron transfer. Through simulated battery electrolyte leakage experiments, the sensor's capability for real-time and rapid detection of DMC is validated, highlighting its potential as an effective solution for early warning of thermal runaway in LIBs.
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DALTON TRANSACTIONS
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2026
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IF 3.3
Yaling Wang,Xinnan Shi,Feng Teng
The anti-twist performance of flexible electronic devices prepared on fabrics is often limited by the degree of bonding between the electronic material and the fabric. This work addresses the issue of limited bonding strength between traditional semiconductor oxide nanomaterials and fabric substrates, by enhancing the bonding ability between ZnO nanoparticles and fabric fibers through Prussian blue pretreatment. The test results show that after appropriate Prussian blue treatment, the anti-twist performance of the ZnO nanoparticle UV detectors prepared on fabric substrates has significantly improved. The on/off ratios of the obtained ZnO/PB device after twisting 100, 200, 300, 600, and 900 times are 37.8, 26.7, 28.5, 7.5, and 30.9, respectively, while the ZnO/PVDF device loses its detection ability after twisting 600 times. Even after twisting to 540°, the ZnO/PB device can still exhibit obvious UV response characteristics, with a photocurrent of about 0.09 nA. Compared with those of untreated devices and devices bonded with PVDF, the anti-twist performance of the ZnO/PB device has been significantly enhanced. These results provide a data foundation and research ideas for the development of wearable optoelectronic devices based on traditional semiconductor oxide materials in the future.
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PubMed
高影响因子
Reaction Chemistry & Engineering
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2026
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IF 2.9
Wenjing Guo,Qing Zhao,Yadong Bi,Kailin Wang,Mengming Wang,Baozhen Wu,Xinli Tong
A series of metal oxide promoters were incorporated into the Ru/C catalyst by the impregnation method. Notably, the addition of ZnO demonstrated a pronounced promoting effect on the hydrogen-transfer reductive catalytic fractionation (RCF) of poplar wood. The 1 wt% Ru/ZnO/C catalyst achieved a total phenolic monomer yield of 34.2 %, even surpassing the commercial 5 wt% Ru/C catalyst despite its lower Ru loading. This enhancement stems from the synergistic interaction between ZnO-derived Lewis acid sites and Ru metal nanoparticles. Furthermore, the influences of key parameters such as reaction temperature, catalyst dosage, molar ratio of ZnO to Ru and solvent on the RCF activity were systematically investigated. During recycling process, the Ru/ZnO/C catalyst exhibited gradual deactivation, accompanied by an increased proportion of unsaturated phenolic monomers in the product distribution, indicating a decline in hydrogenation capacity. The deactivation behavior of the Ru/ZnO/C catalyst was characterized using BET, XPS, TEM, and ICP techniques, and tentative regeneration attempts were employed on the spent catalyst.
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MATERIALS & DESIGN
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2026
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IF 8.2
Meng Fu,Shuai Luo,Mengyang Cheng,Yuanyuan Li,Yaoqi Huang,Xiaomin Cheng
To achieve efficient energy management and intelligent responsive control of phase change material (PCM), a composite PCM with simultaneous energy storage and superior photothermal conversion capability was developed. Carbon foam (CF) was served as matrix material, on which zinc oxide (ZnO) and polypyrrole (PPy) were allowed to deposited to form a hierarchical micro–nano interface, with stearic acid (SA) impregnated as a phase change component. The CF framework provided efficient thermal conduction pathways and elastic structural support, while the interfacial synergy between ZnO and PPy significantly enhanced light absorption and photothermal conversion efficiency. The optimal thermal performance was achieved at ZnO to PPy precursor concentration ratio of 1.5:1 (MCF/SA-2). Under light irradiation, the material possessed excellent photothermal response of 96.6%, high latent heat storage of 186.4 J·g − 1 , outstanding thermal cycling stability, and a remarkable shape recovery ratio of 97.7%. This work offers an effective strategy for developing solar-driven intelligent energy storage, programmable thermal regulation, and flexible adaptive systems, giving a huge potential for the future industrial use.
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IEEE SENSORS JOURNAL
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2026
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IF 4.5
Shi Feng,Rui Li,Quanbin Ma,Juqi Wang,Haoyang Chen,Hongjun Qian,Fengjuan Xu,Shishang Guo
The development of flexible wearable sensors in health monitoring has garnered significant attention, and piezo electric pressure sensing technology has emerged as a piv otal research direction. This study successfully fabricated a n ovel ZnO NRs/PVDF-TrFE nanocomposite material for construct ing high-performance piezoelectric nanogenerators (PENG). Zn O nanorods (ZnO NRs) were synthesized via high-temperature hydrothermal synthesis and integrated into the PVDF-TrFE poly mer matrix through electrospinning. The effects of ZnO content on the piezoelectric performance and β-phase crystallinity of th e composite were systematically investigated. Experimental res ults demonstrated that a 5 wt% ZnO content yielded optimal co mposite performance: achieving a β-phase content of 87.6% an d a significant voltage output increase to 12 V. The composite fi lm exhibited excellent mechanical stability, maintaining stable e lectrical output after 3000 consecutive compression cycles, pro ving its potential as a durable wearable device. Finally, when ap plied to monitor standing long jump movements in adolescents, the sensor demonstrated outstanding dynamic response capa bility and sensitivity, validating its practical value in real-time hu man motion monitoring.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yongmei Li,Chang Baocheng,Yuemei Li
Biodegradable zinc alloys have emerged as promising materials for cardiovascular implant applications. However, the practical application of biodegradable zinc alloys is restricted by several key challenges, including uncontrolled corrosion, inadequate endothelialization and reperfusion ischemia‑induced neointimal hyperplasia. Herein, UV‑assisted Ga‑doped ZnO (UV/GZO) and In‑doped ZnO (UV/IZO) layers are deposited on pure Zn substrates. These coatings can regulate Zn 2 + release and promote the growth of vascular endothelial cells. Under 325 nm excitation, electron‑hole pairs are generated in GZO and IZO via band‑to‑band transitions. The resulting photo‑induced energy catalyzes H 2 O and O 2 to produce reactive oxygen species (ROS), which act as chemical linking groups that accelerate polydopamine (PDA) deposition. The PDA coating enhances corrosion resistance and serves as an adhesion‑promoting interlayer. An outer PLGA layer forms robust bonds with the UV/GZO(IZO)/PDA‑modified Zn substrate, establishing a “sandwich protection system”. This system significantly improves adhesion force, corrosion resistance and mechanical stability. Moreover, the Zn/UVGZO/PDA/PLGA and Zn/UVIZO/PDA/PLGA coatings exhibit good antibacterial activity and controlled degradation, which prevents direct contact between endothelial cells and the Zn surface and decreases adverse cellular responses.
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APPLIED SURFACE SCIENCE
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2026
·
IF 6.6
Yong Zhang,Yangfan Song,Nianwen Song,Yuxuan Wang,Yanyun Kang,Hong Dong,Weihua Wang,Feng Lu,Hui Liu,Yahui Cheng
An interfacial catalyst with porous ZnO and Cu is constructed to promote electroreduction of ultra-low NO 3 − to NH 3 . • Porous ZnO/Cu catalyst exhibits high selectivity and conversion rate for NH 3 under ultra-low NO 3 − conditions. • The charge redistribution between ZnO and Cu creates a interface comprising electron-deficient ZnO and electron-rich Cu. • The interface improves the enrichment and adsorption of NO 3 − , and accelerates hydrogenation steps for NH 3 formation. Electrochemical nitrate (NO 3 − ) reduction offers a sustainable route for green ammonia (NH 3 ) synthesis. However, in practical wastewater treatment scenarios, low NO 3 − concentrations typically compromise NH 3 selectivity and lead to the accumulation of toxic nitrite as a by-product. Herein, we demonstrate that the synergistic catalysis arising from the ZnO/Cu interfacial structure, combined with confinement effects, enhances NH 3 selectivity in low-concentration NO 3 − reduction. The work function difference drives electron transfer from porous ZnO to Cu at the interface, generating electron-deficient ZnO sites and electron-rich Cu sites. The electron-deficient nature of porous ZnO, coupled with the confinement effect of its porous structure, facilitates the enrichment and adsorption of NO 3 − reactants. The adjacent electron-rich Cu sites promote electron–proton transfer, accelerating the hydrogenation steps in the NO 3 − -to-NH 3 pathway. This interfacial electronic configuration allows ZnO/Cu to deliver outstanding performance in a 200 ppm nitrate solution, achieving an NH 3 Faradaic efficiency of 91.9% and an NH 3 yield of 11.5mmol h −1 cm −2 at −1.0 V vs. RHE. The catalyst also reaches a NO 3 − -to-NH 3 conversion rate of 96.4%, demonstrating its dual capability for nitrate-containing wastewater purification and green NH 3 production. Download: Download high-res image (132KB) Download: Download full-size image
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ACS Applied Electronic Materials
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2026
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IF 4.7
Yue Shen,Ying Liu,Yao Jiang,Jingtao Wang,Zheng Li
By blending P(VDF-TrFE) with PVDF-HFP and introducing a small amount of ZnO, a composite film system with both mechanical flexibility and electrical responsiveness was constructed. The effects of the TrFE/HFP ratio and hot rolling temperature on the mechanical behavior and strain-induced electrical response of the films were systematically studied. The results show that the introduction of HFP improves film ductility, while a higher TrFE content enhances load bearing capability and electrical response. Among the investigated compositions, the TrFE80/HFP20 composite containing 1.08 wt % surface-modified ZnO showed a good balance between electrical response and mechanical compliance. After hot rolling, the films processed at 65 °C showed stable mechanical behavior at low to moderate strain and produced clear open circuit voltage signals under stretching. Clear electrical signals were also observed under thermal perturbation. Based on these results, the selected composite film was used to fabricate flexible strain sensors, demonstrating promising potential for practical applications.
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Journal of Magnesium and Alloys
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2026
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IF 15.8
Chao Zhang,Jiaying Wang,Xuhui Liu,Hongshuai Cao,Huijuan Wang,Kaiwei Tang,Feng Peng,Yilong Dai,Liwei Lu,Fugang Qi
Hydroxyapatite (HA) is widely used in bone implants due to its inherent biocompatibility, however, conventional single-layer HA coating still faces limitations when applied to biodegradable magnesium alloys. In this study, a Zn-ZnO@HA nanocomposite coating was fabricated on AZ31B magnesium alloy through in situ ZnO doping assisted by ion plating combined with hydrothermal treatment. The results demonstrated that in situ generated ZnO on the ion-plated Zn layer effectively promoted HA nucleation and growth, resulting in a stable and well-adhered nanostructured coating. The composite coating exhibited superior mechanical performance, with a bonding strength (12.88 N) and plasticity index (0.76), significantly higher than those of the single-layer HA. Electrochemical analyses revealed that the Zn-ZnO@HA coating increased the polarization resistance by approximately seven orders of magnitude, while decreasing the corrosion rate and carrier concentration by approximately two and three orders of magnitude, respectively. Compared with the bare AZ31B substrate, and exhibited long-term degradation stability in simulated body fluid (SBF), attributed to the synergistic effects of barrier protection, cathodic protection, and self-healing behavior of the Zn/ZnO/HA interface. Moreover, owing to the broad-spectrum antibacterial properties of Zn and ZnO, the composite coating effectively inhibits bacterial adhesion and proliferation, thereby offering potential protection for maintaining an aseptic implant interface. In vitro studies further confirm that the Zn-ZnO@HA coating creates a favorable microenvironment for osteogenic differentiation, significantly enhancing early alkaline phosphatase activity and promoting late-stage mineralized nodule formation. Overall, the Zn-ZnO@HA nanocomposite coating integrates outstanding corrosion resistance with high bioactivity, offering an effective strategy for surface functionalization of biodegradable magnesium alloy bone implants.
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