CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
·
IF 3.5
Zian Zhang,Ning Wang,Peng Wang,Kai Jin,Yang Yang,Chenhao Liu,Zhiqiang Yang,Pawin Iamprasertkun,Mingbo Wu,Han Hu
Dual-ZIF-derived strategy enables uniform dispersion of Co nanoparticles. • XAFS confirms coexistence of Co nanoparticles with Co–N 2 and Zn–N 4 single atoms. • Co NPs/Co, Zn-CNFs catalyst achieves Δ E of 0.726 V for ORR/OER. • Zinc-air battery with Co NPs/Co, Zn-CNFs delivers 980 h stable cycling at 10 mA·cm –2 . Cobalt nanoparticles (Co NPs) represent a class of efficient bifunctional electrocatalysts considered ideal for zinc-air battery (ZAB) cathodes. However, their high surface energy leads to severe agglomeration and operational instability, significantly limiting their practical utility. To overcome these limitations, rational support design is essential. This work presents a carbon nanofiber support modified with Co–N 2 and Zn–N 4 sites, enabling the in situ formation of uniformly dispersed and stable Co NPs. The material was synthesized by carbonizing electrospun ZIF-67-containing fibers coated with ZIF-8, which served as a self-sacrificing template. This process yielded highly dispersed Co NPs anchored on the dual-metal modified carbon matrix, effectively preventing NP coalescence. The optimized catalyst demonstrates exceptional bifunctional oxygen electrocatalytic performance, achieving a half-wave potential ( E 1/2 ) of 0.86 V for oxygen reduction reaction (ORR) and an overpotential of 356 mV at 10 mA·cm –2 for oxygen evolution reaction (OER). In practical applications, rechargeable ZABs incorporating this catalyst attained a peak power density of 191.6 mW·cm –2 , a specific capacity of 815.0 mAh·g –1 , and remarkable cycling stability exceeding 980 hours at 10 mA·cm –2 , substantially outperforming conventional Pt/C+RuO 2 catalysts. This work provides an effective and feasible strategy for developing high-performance, durable electrocatalysts for advanced energy conversion systems. Download: Download high-res image (247KB) Download: Download full-size image
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高影响因子
Materials
·
2026
·Vol. 19
·期 9
·1736
·
IF 3.7
Miao Qiu,Min Zhang,Runnian Han,Yao Wang,Wei Wang,Yanxin Wang,Jun Li,Christopher D Snow,Matt J Kipper,Soo Wohn Lee,Laurence A Belfiore,Jianguo Tang
Highlights A novel Eu 3+ complex-doped protein crystal (EC-PC) fluorescent sensor is developed for detecting metal ions in blood with high efficiency. Co-crystallization conditions are meticulously optimized, achieving uniform doping of Eu 3+ complexes within protein crystals and enhancing fluorescence properties. The sensor exhibits sensitive and selective quenching of fluorescence by biologically relevant cations, demonstrating high sensitivity to copper ions with dose-dependent response. Blood compatibility assays confirm the sensor’s non-hemolytic nature and good anticoagulation properties, ensuring safety for potential biomedical applications. This study not only provides a new application perspective for Eu 3+ complex-doped protein crystals in biosensing but also offers a new strategy for detecting biologically relevant cations in blood, with future potential for clinical sample analysis. This study aimed to develop a novel fluorescent sensor based on Eu 3+ complex-doped protein crystal (EC-PC) for the efficient detection of metal ions in blood. By meticulously controlling the crystallization and annealing conditions in the co-crystallization strategy, the crystal growth processes were optimized to obtain doped Eu 3+ complex-co-protein crystalline (EC-PC) structures. Thus, through co-crystallization of hen egg white lysozyme (HEWL) as a model protein and Eu 3+ complex as fluorescent center, we successfully prepared Eu 3+ complex-doped-HEWL co-crystals (EC-HC) with excellent fluorescent properties. Further treatment with 4% glutaraldehyde cross-linking enhanced the structural stability of the co-crystals. Moreover, the characteristic of sensitive, selective quenching of EC-PC fluorescence by biologically relevant cations, such as Cu 2+ , Zn 2+ , Mg 2+ , Ca 2+ and Fe 3+ ions, set up a smart sensing system in blood. For example, the fluorescence intensity of the crystals at 610 nm, as measured by a UV–visible spectrophotometer, decreases dose-dependently with the concentration of copper ions, thereby validating the sensor’s high sensitivity to copper ion detection. Significantly, we also found that this hybrid protein-based sensor did not induce hemolysis, at various volume concentrations, confirming good anticoagulation in blood. This research not only provides a new perspective on the application of Eu 3+ complex-doped protein crystals in the field of biosensing but also offers a new strategy for the detection of biologically relevant cations in blood. Future work will focus on further optimizing the sensor’s performance and exploring its potential applications in clinical sample analysis.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jiawei Dai,Dongdong Zhao,Deyu Zhu,Zijian Xin,Guichan Xu,Xueqi Hu,Zhuo Huang,Hongfang Liu,Guangfang Li
An electrochemical sensor for rapid and sensitive detection of methanogenic archaea has been developed through coenzyme M identification. • Synthesis of layered self-assembled CuS nanostructures with multiple hierarchical levels by simply adjusting the molecular weight of structural directing agents. • In situ techniques have revealed detailed information about the oxidation process of coenzyme M on the surface of CuS. Atmospheric greenhouse gas methane (CH 4 ) emission in lakes, strongly related to an anaerobic process mediated by methanogenic archaea, significantly influences carbon cycling and ecosystem stability. A real time monitoring of methanogenic abundance is essential for predicting climate change dynamics and evaluating ecosystem health. The detection of archaea characteristic coenzyme is an effective method for quantifying microbial populations. In this study, we synthesized layered self-assembly copper sulfide nanostructures (nanostar) with multiple hierarchical and rich active sites for the electrochemical identification of 2-mercaptoethanesulfonate (coenzyme M), a unique biomarker participating the final step of CH 4 production during methanogenic archaea's metabolism. The constructed CuS electrochemical sensor enables quantitative detection of methanogenic archaea through catalytic oxidation of coenzymes. In situ infrared spectroscopy and time-dependent Raman spectroscopy reveal detailed insights into the oxidation process of coenzyme M on the CuS surface. The peak current of the CuS electrochemical sensor exhibits a good linear relationship with the concentration of coenzyme M, demonstrating excellent resistance to interference and stability. Furthermore, a linear correlation was established between coenzyme M (Co M) concentration and methanogenic abundance. The developed CuS biosensor enabled rapid quantification of methanogens within a range of 10 3 –10 8 CFU/mL, and realized the detection of methanogenic archaea in the bottom water samples of Donghu lake as 2*10 7 CFU/mL. This work provides a scientific foundation for lake ecosystem assessments and global carbon cycle modeling. Download: Download high-res image (112KB) Download: Download full-size image
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CERAMICS INTERNATIONAL
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2026
·
IF 6
Xiao Tang,Hongyi Zhang,Wenxia Wu,Shanshan Ye,Shuiyong Tang,Linfeng He,Yuyang Huang
High-quality Tm 3+ and Yb 3+ co-doped YAG and YSAG crystals were successfully synthesized by the optical floating zone technique. This work systematically examines the relationship between structural attributes and optical performance in the crystals. This work mainly focuses on the effect of Sc 3+ doping on luminescent behavior. The doping of Sc 3+ ions results in variations in the crystal field, which in turn alter the luminescent properties. The powder X-ray diffraction confirms that the prepared samples all possess a cubic garnet structure and high crystallinity at room temperature. Both upconversion and downconversion photoluminescence measurements were performed under 980 nm excitation. The photoluminescence test results show that the upconversion luminescence intensity of the YSAG crystal is enhanced in the visible light region, and the downconversion infrared emission near 1800 nm exhibits spectral broadening. Raman spectroscopy indicates that the alteration of the photoluminescence properties of the crystal stems from the reduced maximum phonon energy, and the increase in the local structural disorder of the crystal. Furthermore, the influence of lattice structure alteration is also reflected in the significantly prolonged fluorescence lifetime of crystal samples, indicating the role of Sc 3+ doping in suppressing non-radiative relaxation. This study indicates that the doping of Sc 3+ enhances the visible emission intensity, infrared spectral bandwidth and the excited-state lifetime. The YSAG formed by doping is a matrix material with promising development prospects in the application of lasers and optical devices.
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Jieying Qian,Zhixin Wu,Xianwu Yan,Zhenyu Yang,Yaoxu Chen,Youpei Zhang,Sitong Du,Tianyi Jiang,Yuping Zhou,Qingqi Zheng,Xiaowan Huang,Hao Zhang,Yunjiao Zhang
Cholestatic hepatitis is a progressive inflammatory liver disease characterized by disrupted bile acid homeostasis, excessive reactive oxygen species (ROS) generation, and chronic inflammation, remains clinically challenging due to limited diagnostic precision and lack of effective, targeted therapies. Here, we developed a multifunctional theranostic nanoplatform, CyP-CuGA-UDCA nanosheets (NSs), that integrates therapeutic intervention with enzyme-responsive disease monitoring. The platform features copper-gallic acid (CuGA) nanozymes with superoxide dismutase-, peroxidase-, and catalase-like activities for effective ROS scavenging and NLRP3 inflammasome inhibition. Co-loaded with ursodeoxycholic acid (UDCA) to alleviate bile acid toxicity, and with an alkaline phosphatase (ALP)-responsive near-infrared fluorescent probe (CyP), the nanoplatform enables targeted treatment and real-time imaging of cholestatic lesions. In a DDC-induced mice model, CyP-CuGA-UDCA NSs significantly suppressed pro-inflammatory cytokine production, reduced hepatic macrophage infiltration, attenuated oxidative stress and hepatocyte apoptosis, and alleviated fibrosis, outperforming monotherapies. Concurrently, the ALP-activated fluorescence allowed precise visualization of cholestatic progression in vivo. This study presents a first-in-class nanostructured system that couples NLRP3 inflammasome modulation and bile acid regulation with enzyme-specific diagnostics, offering a robust strategy for precision therapy and monitoring of cholestatic hepatitis.
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高影响因子
NANO
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2026
·
IF 1.3
Keqiang Zhu,Jincheng Wang,Xinxin Tan,Zhiyong Jia,Yun Wang,Chuang Zhang
Developing efficient and cost-effective oxygen reduction reaction (ORR) catalysts is crucial for advancing clean energy technologies. In this study, the 3D polypyrrole aerogel was synthesized using methyl orange as a soft template. The subsequent in-situ spatially confined pyrolysis ensures the atomic dispersion of Co-N x active sites while effectively suppressing metal agglomeration. The optimized CoNC-150 catalyst exhibited a high surface area (298.53 m 2 /g) and well-distributed cobalt-coordinated active sites (Co-N 4 ), significantly enhancing ORR performance. Electrochemical evaluations demonstrated an exceptional half-wave potential of 0.886 V, closely approaching that of commercial 20 wt% Pt/C (0.892 V). The catalyst followed a fourelectron transfer pathway, ensuring efficient ORR kinetics. Remarkably, this robust 3D monolithic architecture endows the catalyst with exceptional stability in alkaline media. Long-term durability tests over 40,000 cycles confirmed their remarkable stability, with only a 0.008 V loss in half-wave potential, significantly lower than the 0.022 V loss in Pt/C under similar conditions. The degraded CoNC-150 exhibited a half-wave potential of 0.878 V, significantly outperforming Pt/C (0.870 V). Kinetically, CoNC-150 exhibits a Tafel slope of 146.16 mV/dec, indicating favorable ORR dynamics. These results highlight the potential of CoNC-150 as a highly active and durable non-precious metal catalyst (NPMC) for ORR applications. This study provides valuable insights into the rational design of transition metal-based electrocatalysts, offering a promising route toward scalable and sustainable energy conversion technologies.
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POLYMER ENGINEERING AND SCIENCE
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2026
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IF 3.6
Qianqian Qi,Fuhao Zhu,Mingyu Zhang,Qingguo Wang
Poly(lactic-co-glycolic acid) (PLGA) is a widely used biodegradable polyester; however, its inherently glassy nature limits its applicability in systems requiring large and reversible deformation. In this work, segmented PLGA-based biodegradable thermoplastic elastomers (BTPE PLGA ) were developed by incorporating highly flexible, amorphous aliphatic polyester soft segments with a low glass transition temperature (≈−55°C) through chain extension with hexamethylene diisocyanate (HDI). The resulting materials exhibit microphase-separated morphologies characterized by distinct glass transitions associated with soft- and PLGA-rich domains. By varying the PLGA/soft-segment ratio, mechanical properties can be systematically tuned, with tensile strengths ranging from approximately 5 to 15 MPa and elongations at break exceeding 900% at intermediate compositions. Cyclic tensile tests demonstrate elastic recovery above 90% under repeated loading. Dynamic mechanical analysis reveals composition-dependent modulus and a stable rubbery plateau region. Enzymatic degradation studies further show that the mass-loss behavior can be regulated through segmental composition while maintaining the thermoplastic elastomer characteristics. These results demonstrate that segmented structural design provides an effective strategy for balancing elasticity and degradation behavior in PLGA-based thermoplastic elastomers. Highlights Segmented PLGA-based thermoplastic elastomers developed. Hard/soft segment ratio governs mechanical performance. Tensile strength tunable from 5 to 15 MPa. Elongation exceeded 900% with stable elastic recovery. Degradation behavior regulated by segment composition.
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高影响因子
ACS Omega
·
2026
·
IF 5.2
Zai Dong,Xichang Wu,Tianhua Yu,Chaochan Li,Heng Zhang,Jie Wang,Armin Rezayan,Anping Wang
This study aims to improve the removal efficiency of heavy metal ions from wastewater. We utilized agricultural residues derived from Camellia oleifera shell and combined them with zeolitic imidazolate frameworks (ZIFs) precursors for synergistic modification. By introducing active components such as Zn and Co in situ using chemical reagents, followed by pyrolysis, co-carbonization, and KOH activation treatments, we prepared nine types of functionalized biochar (BCX-T). Their structural characteristics and adsorption performance toward Cu(II) and Cd(II) were systematically characterized. The results showed that BC8-500 exhibited an adsorption capacity of 31.61 mg/g for Cu(II), a 2.1-fold increase compared to unmodified biochar; BC9-500 exhibited an adsorption capacity of 111.43 mg/g for Cd(II), a 6.4-fold increase. The adsorption process was primarily driven by chemical adsorption and multilayer adsorption. The removal of Cu(II) by BC8-500 was mainly achieved through complexation, whereas the removal of Cd(II) by BC9-500 was primarily achieved through CdCO3 precipitation. This study provides a theoretical basis for the effective utilization of agricultural and forestry residues, as well as for the mitigation and management of environmental pollution.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Zhang Chi,Tang Wenxiang,Li Xiangyang,Zhang Chi,Zou Zongpeng,Zhu Yifeng,Tang Shengwei,Chen Yunfa,Gao Pu-Xian
Design of active but stable interfaces in supported metal catalysts represents an emerging research theme lately, given its critical importance for tailoring and enabling selectivity and efficiency of heterogeneous reactions. Herein, we report a generic sunlight-driven epitaxial growth strategy to engineer catalytically active interfacial perimeters defined by subnanometric Pt dispersed on TiO 2 nanoparticle supports. Such interfacial perimeters are populated with a unique type of Pt 4+ -O-Ti 3+ reactive sites, resulting in much more efficient and robust CO oxidation than most supported Pt catalysts reported so far. These subnanometric PtO x -TiO 2 interfacial structures are found to dynamically evolve during CO oxidation, adaptively optimizing their adsorption behaviors toward reactants and SO 2 . Combined with the activated interfacial lattice oxygen species via the electronic metal-support interaction effect, the Mars-van Krevelen pathway is activated at low temperature to oxidize CO at high conversion efficiency. The sunlight-driven synthetic strategy is successfully extended to other metal catalysts supported by metal oxide and perovskite materials, offering a new paradigm for designing adaptive catalysts toward a variety of heterogeneous catalytic reactions.
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高影响因子
AAPS PHARMSCITECH
·
2026
·Vol. 27
·期 4
·198
·
IF 5.1
Zhou Ziling,Chen Xian,Liu Yuxin,Zheng Rongjiao,Huang Junxiang,Pan Xin,Wu Chuanbin,Jiang Junhuang
Besides improving drug solubility and stability, co-amorphous systems (COAMS) have recently been reported to enhance the pulmonary delivery efficiency of dry powder inhalation (DPI), offering a novel approach to the development of DPI. Conventional drug formulation development utilizes trial-and-error experiments, which require a laborious workload and resources. Moreover, the correlation of forming COAMS to enhanced pulmonary deposition remains underrepresented. Therefore, we proposed applying multiple machine learning (ML) models to the development of co-amorphous DPIs. In this study, we first constructed the database of COAMS through literature mining and then preprocessed the dataset with a molecular representation method. Subsequently, we successfully developed and evaluated the predictive performance of multiple ML models (i.e., logistic regression, random forests, XGBoost, LightGBM, and support vector machines) for forming a co-amorphous system. The five ML models' performance varied, yet all achieved satisfactory predictive accuracy (ACC) of around 0.80 in the testing subset. Specifically, LightGBM exhibited the highest ACC of 0.790 in cross-validation and 0.845 in the testing subset. In addition, SHapley Additive ex Planations (SHAP) analysis revealed that several molecular features (i.e., API_EState_VSA10, Co-former_BCUT2D_MRHI) are critical for models' prediction. More importantly, we conducted experimental validation by using salbutamol sulfate and indomethacin as model drugs to prepare co-amorphous DPIs based on the fine-tuned LightGBM model. The co-amorphous DPIs showed satisfactory aerodynamic performance with fine particle fractions of 41.87%—69.30%. In conclusion, we successfully demonstrated the feasibility of ML for guiding the formation of co-amorphous DPIs, further facilitating the development process in the future. Graphical
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 13
·978
·
IF 3.2
Li Xiongbin,Zhou Yuqiao,Tang Xiu-Zhi,Zhang Hong,Li Hengfeng
The aerospace, military stealth, and 5G communication fields have raised new requirements for multifunctional materials. In this study, a rigid MWCNT/Co@C/rGO/PMI composite foam (MCGP) was prepared using a UV light-initiated in-situ copolymerization hot air foaming method. The sandwich structure of MOF-GO-MOF, after calcination, achieved a uniform dispersion of magnetic Co particles and formed rich hetero interfaces. The 0D Co@C, 1D MWCNT, and 2D rGO formed a multi-dimensional filler system, and the magnetic-electrical synergy and isotropy bubble structure jointly optimized the impedance matching, and multiple loss mechanisms enhanced the absorbing performance. The results showed that M20C20/PMI achieved a RL value of -68.26 dB at a frequency of 8.92 GHz and a thickness of 40mm, and the EAB covered the full frequency band of 2—18 GHz. The RCS value of M25C15/PMI reached a minimum of -45.82 dB·m 2 . Notably, by carefully adjusting the proportion of fillers, the five MCGP composite foams prepared in this study all had a minimum RL value of < -55 dB, basically meeting the requirements of each absorption frequency band. In addition, the MCGP composite foams are lightweight (28.30 kg/m 3 ), have high strength (0.50 MPa), heat insulation (0.02856 W/(m·K)), and infrared stealth characteristics, making them promising as a new generation of integrated structural–functional protective materials.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Guoyan Dang,Kaikai Zhang,Xin Zhong,Haoran Hu,Xiaoguang Wang,Youke Yan,Yue Wang,Yanrong Zhang
Co-N 4 /C O dual sites enable relay catalysis in sulfite-based AOPs. • C O sites initiate radical chains via strong p-p hybridization with sulfite. • Co-N 4 sites promote the conversion of SO 5 •− to SO 4 •− through d-p coupling. • Flow, real wastewater, and ecotoxicity tests confirm practicality. Sulfite-based advanced oxidation processes (S(IV)-AOPs) have emerged as a promising persulfate-free and low-toxicity route for sulfate radical (SO 4 •− ) generation. However, the radical-chain nature of S(IV) oxidation, involving both SO 3 •− initiation and the subsequent conversion of SO 5 •− to SO 4 •− , makes it difficult for single-site catalysts to simultaneously achieve efficient chain initiation and downstream radical conversion. Here, we report a carbon-supported Co-N 4 /C O bifunctional catalyst that establishes a dual-site relay catalysis strategy for S(IV)-AOPs. In this architecture, spatially separated yet electronically coupled sites exhibit a clear division of labor: ketonic C O groups serve as primary activation sites for S(IV) activation to generate SO 3 •− via p-p hybridization, whereas adjacent Co-N 4 moieties act as relay sites to facilitate the conversion of SO 5 •− to SO 4 •− through d-p coupling. In situ spectroscopy, selective site-masking experiments, open-circuit potential measurements, and density functional theory calculations collectively verify this stage-specific activation-conversion relay mechanism. As a result, the Co-N 4 /C O catalyst achieves a 10.36-fold higher apparent rate constant for metronidazole degradation than its single-site Co-N 4 counterpart. Moreover, the catalytic system exhibits robust stability in continuous-flow operation and real wastewater treatment while maintaining low ecotoxicity. This work provides a strategy for radical-chain regulation in S(IV)-AOPs. Download: Download high-res image (264KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）