Nano-Micro Letters
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2026
·Vol. 18
·期 1
·172
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IF 36.3
Qi Yanan,Chen Hongqiu,Hong Feng,Cai Xiangbin,Ying Zhehan,Diao Jiangyong,Jia Zhimin,Chen Jiawei,Wang Ning,Xiang Shengling,Chen Xiaowen,Wen Guodong,Sun Bo,Sun Geng,Liu Hongyang
We successfully fabricated an atomically dispersed dual-atom catalyst featuring Pt 1 -Ru 1 sites anchored on defective graphene (Pt 1 Ru 1 /ND@G).
Pt 1 Ru 1 /ND@G achieves a high turnover frequency of 17.6 × 10 −2 s −1 for CO oxidation at 30 °C, which is 10 times higher than Pt 1 /ND@G and demonstrates outstanding performance compared with the previous reports.
Pt-Ru bond enhances the metallicity of both Pt and Ru atoms, facilitating the simultaneous adsorption and activation of CO and O 2 and overcoming the limitations of single-atom catalysts.
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Carbon Neutrality
·
2026
·Vol. 5
·期 1
·4
·
IF 12.5
Wang Shaona,Yang Yang,Xu Wenqing,Bai Zhuoshu,Su Fabing,Wang Yixi,Bai Dingrong,Zhu Tingyu
As an integrated CO 2 capture and utilization (ICCU) process, direct electrochemical reduction of amine captured-CO 2 reduction reaction (cCO 2 RR) has enormous advantages in energy efficiency and operating cost. The low product selectivity is an urgent issue. Here, we found that the hydroxyl (-OH) on CeO 2 can significantly enhance CO selectivity. After hydroxyl modification, the CO faraday efficiency (FE CO ) was surprisingly increased by 188% (relative increase rate). The correlation coefficient between -OH quantity and FE CO is as high as 0.98. Further study indicated that the presence of -OH can lead to a more compact electrochemical double layer (EDL) and charge transfer resistance by proton transfer. The -OH can also enhance CO 2 adsorption and stabilize the intermediate species (*COOH). DFT results further demonstrate that the rate-determining step was proton transfer from the surface -OH to MEACOO − , -OH modification can reduce the energy barrier to as low as 0.39 eV. This work provides additional insights into improving selectivity in amine-based cCO 2 RR, advancing the development of ICCU technology.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2026
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IF 3.1
Zhang Yili,Deng Jingyu,Yang Zitong,Qi Wenkai,Dai Xinyi,Zhang Yuxia
In the study, we present a molten salt-assisted hard-templating strategy for synthesising cobalt and nitrogen-doped carbon nanoflowers (Co/N-CNFs) as high-performance electrocatalysts for highly sensitive and selective electrochemical dopamine detection. The hierarchical surface roughness and excellent conductivity of Co/N-CNFs, combined with their uniformly dispersed Co sites, facilitate exceptional electrocatalytic performance toward dopamine oxidation. Electrochemical measurements demonstrated that the Co/N-CNFs composite exhibited outstanding performance for dopamine sensing, featuring a broad linear response range from 1 to 1000 µM and an exceptionally low detection limit of 0.13 µM. Moreover, the sensor exhibited remarkable stability, excellent anti-interference capability, and high accuracy in actual sample analysis. The work presents an innovative design strategy for Co/N-doped carbon catalytic systems, enabling the detection of dopamine in spiked human serum samples.
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Journal of Environmental Sciences
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2026
·
IF 6.5
Wenli Wu,Min Chen,Bolang Li,WenQiang Ye,Fei Wang,Kai Li,Ping Ning,Changbin Zhang
Oxygen-enriched CO oxidation is a pivotal reaction in automotive exhaust and indoor air purification. Fine-tuning the active sites represents a significant challenge in this catalytic field. In this work, we modulated the chemical state of Pt on Pt/CeO 2 catalysts by varying pretreatment atmospheres (direct H 2 reduction and sequential O 2 calcination-H 2 reduction), then applied these catalysts to the CO oxidation reaction. It was found that the Pt/CeO 2 catalyst via direct H 2 reduction showed a much higher activity than the Pt/CeO 2 catalyst via sequential O 2 calcination-H 2 reduction. It was revealed that under O 2 -H 2 conditions, a strong metal-support interaction (MSI) introduced the highly dispersed small Pt clusters. Conversely, under H 2 reduction conditions, a moderate MSI causes the formation of larger Pt nanoparticles, exhibiting a significantly increased proportion of metallic states and promoting the activity of CO oxidation. This study provides an effective strategy for designing highly efficient catalysts.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Meiyu Zhou,Jinxin Wang,Weiwei Cheng,Erna Li,Feng Xiao,Jialiang He,Lili Liu,Baocheng Xu
A Dual-Synergy strategy integrates supramolecular co-assembly with heterogeneous protein networks for efficient delivery. • DFT and IGMH analyses reveal π–π and C–H···π interactions drive Cur–Que co-assemblies’ synergistic antioxidant activity. • Cur/Que. co-assemblies reinforce the OVA/PPI network via extensive non-covalent interactions, elevating T peak to 91.21°C. • The composite gel restricts lipid digestion and boosts Cur and Que in vitro bioavailability to 58.96% and 63.17%. Hydrophobic phytochemicals often show limited solubility and low bioaccessibility during digestion, which restricts their use in functional food systems. In this study, a protein-based emulsion gel was developed by embedding a curcumin–quercetin supramolecular co-assembly within a composite network formed from ovalbumin and peanut protein isolate. The curcumin–quercetin co-assembly at a 5:5 ratio showed the strongest synergistic antioxidant activity, with a combination index of 0.598. Density functional theory calculations and independent gradient model analysis based on Hirshfeld partition indicated that π–π stacking and C–H···π interactions stabilized the co-assembled structure, modulated frontier orbital energy levels, reduced the energy gap, and increased electrophilicity, thereby enhancing radical-scavenging activity. The ovalbumin–peanut protein isolate composite at a 5:5 ratio formed a well-developed gel network and generated nanoscale embedded structures of approximately 779 nm through electrostatic and hydrophobic interactions. Incorporation of 1% curcumin–quercetin co-assembly resulted in encapsulation efficiencies above 97% for both phytochemicals. It also increased the storage modulus by 77.5% and improved water-holding capacity to 82.15%. Low-field nuclear magnetic resonance analysis showed a higher proportion of bound water, while the thermal transition temperature increased from 81.83 to 91.21 °C. These results indicate that the co-assemblies served as active crosslinking domains within the protein network through hydrogen bonding and hydrophobic interactions. During simulated digestion, the integrated co-assembly gel system delayed lipid digestion, with a free fatty acid release of approximately 58.55%, and increased the bioaccessibility of curcumin and quercetin to 58.96% and 63.17%, respectively. This study reveals how molecular co-assembly and protein gel structuring jointly improve the stability and delivery performance of hydrophobic phytochemicals, providing a basis for designing nutrient-dense functional food delivery systems.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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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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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Zi-Ang Lu,Shan Jin,Tingting Qu,Ranran Liang,Yunchen Du,Mengxin Chen,Ping Xu
Conductive oxides with chemically distinct local environments are attractive for bifunctional water splitting because hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) impose different requirements on adsorption and charge transfer. Here, a descriptor-informed Fe/V co-doping strategy is proposed to regulate MoO 2 for photo-assisted electrocatalysis. Density functional theory (DFT) screening based on incorporation thermodynamics, local M–O bond mismatch, and near-Fermi-level electronic states identifies V as the most favorable dopant for lattice incorporation and Fe as the dopant that minimizes local bond-length mismatch while strongly perturbing the electronic structure. Guided by this complementarity, Mo 0.9 Fe 0.05 V 0.05 O 2 was synthesized and compared with pristine MoO 2 and single-doped controls. The co-doped catalyst preserves the MoO 2 framework and delivers the best overall performance, requiring 166 and 243 mV for HER and 253 and 281 mV for OER to reach 10 and 50 mA cm −2 under illumination. Electrochemical measurements reveal improved charge-transfer behavior and enhanced light-induced current response. Optical characterization and Finite-difference time-domain (FDTD) simulations indicate that the hollow architecture promotes optical-field localization, while DFT reaction energetics suggest site-dependent catalytic preferences, with V-associated environments favoring hydrogen adsorption and Fe-associated environments facilitating OER intermediate conversion. This study demonstrates that pairing dopants according to lattice compatibility and electronic perturbation is an effective route to activate MoO 2 for photo-assisted bifunctional water splitting. A descriptor-guided Fe/V co-doping strategy activates hollow MoO 2 for photo-assisted water splitting. Fe/V co-doping enables complementary HER/OER active sites, while the hollow architecture promotes optical-field localization and enhances interfacial charge-transfer kinetics under illumination. Download: Download high-res image (143KB) Download: Download full-size image
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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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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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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
·
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
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2026
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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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