Journal of Energy Chemistry
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2025
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IF 14.9
Dengqi Zhou,Ke Zeng,Liqiang Wang,Feiying Tang
The development of highly efficient non-noble metal catalysts for the hydrogenation of N-heteroarenes under mild condition is of great importance for both theoretical and industrial applications, which can efficiently reduce energy consumption and environmental pollution. In this work, we found that the prepared CoCu nano-alloy catalyst after exposed in the air over 24 h (named Co 1 Cu 1 /C) exhibited a dramatically improved catalytic performance (yield from trace to >99%) for quinoline hydrogenation under mild reaction conditions (60 °C, 3 MPa H 2 ). According to the characterization, the catalyst Co 1 Cu 1 /C exhibited the strong interaction between Co and Cu. Meanwhile, it was endowed with a stable partial oxidation surface. The unsaturated oxygen coordinated surface of Co 1 Cu 1 /C presented a moderate binding for quinoline and 1, 2, 3, 4-tetrahydroquinoline, which could efficiently avoid the deactivation of catalyst and favor the hydrogenation kinetics. The density functional theory (DFT) calculations coupled with X ray-based structural analyses suggested that the unsaturated oxygen coordinated surface could lower the diffusion energy of the active hydrogen species and the reaction barrier for quinoline hydrogenation which resulted from the d - p orbital electron coupling. This work revealed that the catalytic performance of nano-alloy catalysts might not only be ascribed to the interaction between metals, while the unsaturated oxygen coordination of metallic surfaces played an important role.
研究领域:
催化化学
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材料科学
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理论化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Yanan Wang,Li Jing,Wei Jiang,Yuanyuan Wu,Bo Liu,Yantao Sun,Xianyu Chu,Chunbo Liu
Reinforcing the development of efficient and robust electrocatalysts is pivotal in addressing the challenges associated with oxygen evolution reactions (OER) in water splitting technology. Here, an amorphous/crystalline low-ruthenium-doped bimetallic layered double hydroxide (LDH) electrocatalyst (a/c-CoCu + Ru x -LDH/NF) with massive oxygen vacancy on nickel foam was fabricated via ion-exchange and chemical etching, facilitating efficient OER. Among the various catalyst materials tested, the a/c-CoCu + Ru 10 -LDH/NF exhibits remarkable performance in the OER when employed in an alkaline electrolyte containing 1 M KOH. Achieving a minimal overpotential at 10 mA cm −2 of 214 mV, exhibiting a low Tafel slope value of 64.3 mV dec −1 and exceptional durability lasting for over 100 h. Theoretical calculations demonstrate that the electron structure and d-band center of CoCu-LDH can be effectively regulated through the utilization of a strategy possessing abundant oxygen vacancies and a Ru-doped crystalline/amorphous heterostructure. It will lead to optimized adsorption free energy of reactants and reduced energy barriers for OER. The construction strategy proposed in this paper for catalysts with amorphous/crystalline heterointerfaces offer a novel opportunity to achieve highly efficient OER.
研究领域:
材料科学
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电化学
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Zhuo Liu,Lufang He,Xin Xin,Jingwen Zhou,Yan Xu
Hierarchical CoCu/CoO carbon matrix is formed via ion-impregnation-pyrolysis method. • NCNTs-encapsulated CoCu and GC-anchored CoO form rich electrochemical catalytic sites. • CoCuNCNT/CoO-GC shows high sensitivity and 0.8 s fast response for nitrite sensing. • The sensor exhibits excellent anti-interference capability and long-term stability. • The sensor quantifies nitrite precisely in real samples via standard addition method. This work proposed a hierarchical hybrid metal/carbon material fabricated via metal ion wet impregnation using a MOF precursor, followed by high-temperature pyrolysis. The resulting architecture features intertwined, chain-mail-like network of intertwined nitrogen-doped carbon nanotubes (NCNTs) encapsulating CoCu nanoparticles (NPs), which is integrated into three-dimensionally (3D) wrinkled graphitized carbon (GC) layers decorated with crosslink CoO NPs. Due to the synergistic effect between CoCu/CoO active sites, porous structures and conductive carbon matrix, the resultant CoCuNCNT/CoO-GC-2 composite modified glassy carbon electrode (GCE) sensor exhibits a high electrochemical sensitivity of 1445 µA·cm −2 ·mM −1 and a rapid response time of 0.8 s toward nitrite ion. It also demonstrates a remarkably low limit of detection (LOD) of 1.56 µM, wide linear ranges of 10–1000 µM and 1000–4000 µM, as well as excellent anti-interference and long-term stability. Moreover, the practical applicability of the sensor was demonstrated by determining nitrite in drinking water, lemon tea, tap water, and lake water using the standard addition method. This work provides valuable insights into designing high-performance nitrite-oxidizing electrochemical sensors with multi-functional catalytic sites. Download: Download high-res image (133KB) Download: Download full-size image
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高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Zhenting Zhao,Wenhong Shen,Guoqiang Yang,Haijuan Mei,Kai Li,Ke Li,Yang Lai,Ting Wang,Junfeng Zhao,Qiuyue Gui,Jie Hu,Weiping Gong
Accurate monitoring of blood glucose concentration is crucial for diabetes diagnosis. In this work, a three-dimensional hierarchical structure was fabricated by incorporating CoCu-layered double hydroxide onto flexible carbon foam (CoCu-LDH/FCF). Its porous, sponge-like architecture provides a high specific surface area and exposes abundant catalytic sites, thereby enhancing electrocatalytic performance for glucose sensing. The CoCu-LDH/FCF composite was immobilized onto a screen-printed electrode (SPE) to construct a portable sensor, designated as CoCu-LDH/FCF/SPE. The resulting sensor exhibits excellent electrocatalytic activity toward glucose oxidation, featuring a linear detection range of 2–500 μM, a sensitivity of 25.6 μA·μM −1 ·cm −2 , favorable selectivity, and long-term stability. Furthermore, a portable detection platform was developed by integrating the sensor with a flexible electrochemical integration module and a smartphone. Experimental results demonstrate the high performance of the CoCu-LDH/FCF/SPE sensor within this compact system.
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高影响因子
Advanced Science
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2024
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IF 14.3
Zhenming Tian,Han-Jian Hu,Chun Cheung Chan,Tian Hu,Chaoyang Cai,Hong Li,Limin Rong,Gang-Biao Jiang,Bin Liu
In the realm of neural regeneration post-spinal cord injury, hydrogel scaffolds carrying induced neural stem cells (iNSCs) have demonstrated significant potential. However, challenges such as graft rejection and dysfunction caused by mitochondrial damage persist after transplantation, presenting formidable barriers. Tacrolimus, known for its dual role as an immunosuppressant and promoter of neural regeneration, holds the potential for enhancing iNSC transplantation. However, systemic administration of tacrolimus often comes with severe side effects. This study pioneers the development of a self-healing hydrogel with sustained-release tacrolimus (COCu-Tac), tailored specifically for iNSC transplantation after spinal cord injury. This research reveals that the sustained release of tacrolimus enhances axonal growth and improves mitochondrial quality control in iNSCs and neurons. Further analysis shows that tacrolimus targets FKBP52 rather than FKBP51, enhancing mitophagy via the FKBP52/AKT pathway. This advanced system demonstrates significant efficacy in promoting neural regeneration and restoring motor function following spinal cord injury.
研究领域:
神经科学
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再生医学
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药理学
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DOI
PubMed
高影响因子
Molecular Catalysis
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2024
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IF 3.9
Qianyuan Mo,Haoyuan Zheng,Guishang Sheng
In the study presented in this paper, a cobalt and copper codoped bimetallic metal-organic framework (CoCu–MOF) was synthesized by a solvothermal method. The CoCu–MOF was then utilized to activate peroxymonosulfate (PMS) to degrade the tetracycline (TC) present in water. When the concentration of organic pollutants was 20 mg/L, the degradation efficiency of TC by the Co 1 Cu 1 –MOF/PMS system reached 98.17 % within 30 min, which was better than that of the PMS and Cu-MOF/PMS systems alone. The effects of catalyst addition, PMS usage, initial pH, temperature, coexisting ions and initial TC concentration on the degradation of TC by Co 1 Cu 1 –MOF were investigated. The sulfate radical (SO 4 •− ), hydroxyl radical (•OH), superoxide radical (O 2 •− ), and nonradical singlet oxygen ( 1 O 2 ) were identified as the primary reactive species through quenching experiments and electron paramagnetic resonance (EPR) analyses. Moreover, linear sweep voltammetry (LSV) analysis was used to determine the occurrence of an electron transfer-mediated nonradical pathway in the reaction system in addition to 1 O 2 . The concentrations of the TC intermediates were determined using liquid chromatography‒mass spectrometry (LC‒MS), and potential degradation processes were proposed. This study showed that CoCu–MOF is a heterogeneous catalyst that activates PMS for efficient TC degradation.
研究领域:
环境科学
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化学工程
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材料科学
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DOI
高影响因子
Molecular Catalysis
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2026
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IF 4.3
Kai Peng,Shasha Zhao,Hanyue Xiao,Yue Zeng,Xin Ye,Yunmeng Yan,Yurong Liu,Rong Ding,Tianwu Hou,Guowei Deng,Congdi Chen,Min Yang
Propose the “Ru-O-Co/Cu bridge structure” strategy to establish electronic coupling and a cooperative network, achieving multi-site synergistic catalysis. • In the acidic solution, at a current density of 10 mA cm −2 , the HER overpotential of Ru 2 /CoCu-LDH@CF is only 19.76 mV, with stability exceeding 300 h. • In the acidic solution, the dual electrodes OWS voltage is as low as 1.35 V. Under the “backdrop of the “dual carbon” strategy steering global energy structure transformation, green hydrogen—an ideal clean energy carrier featuring zero carbon emissions and high energy density—requires large-scale production to boost renewable energy utilization and attain carbon neutrality. To address this challenge, this work, aligned with industrial demands for low-cost green hydrogen, fabricated low-ruthenium-doped Ruₓ/CoCu-LDH@CF (x = 0.3, 0.6, 0.9 mmol) in situ on conductive copper foam (CF) via synergistic effect. Ruthenium doping effectively elevates the material’s electrical conductivity while regulating the electronic configuration of CoCu-LDH. The Ruₓ/CoCu-LDH@CF catalyst demonstrates outstanding activity across the all pH range: In 1 M KOH, the Ruₓ/CoCu-LDH@CF electrode requires only 58.6 mV and 202.4 mV to achieve a current density of 10 mA cm⁻² in both hydrogen evolution reaction (HER), oxygen evolution reaction (OER), respectively, and maintains stable for over 300 h. In 0.5 M H 2 SO 4 , at a current density of 10 mA cm −2 , the HER overpotential of Ru 2 /CoCu-LDH@CF is only 19.76 mV, the overall water splitting (OWS) voltage is as low as 1.35 V. In 1 M PBS, the Tafel slope is as low as 25.01 mV dec⁻¹, signifying fast reaction kinetics. This superior catalytic behavior stems primarily from the Ru-O-Co/Cu bridging structure, which facilitates efficient electron transfer. This advancement offers material support for the efficient, stable production of green hydrogen, further advancing renewable energy-driven electrochemical water splitting toward practical application. It carries substantial theoretical and practical value for curbing carbon emissions, aiding the realization of “dual carbon” targets, and building a clean energy system. Download: Download high-res image (358KB) Download: Download full-size image
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高影响因子
BIOSENSORS & BIOELECTRONICS
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2026
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IF 11.8
Wanwan Liu,Wenyi Dong,Yulou Qiu,Yutao Zhu,Jia Qiu,Jianping Wang,Weiwei Qin,Xuping Shentu,Zihong Ye,Xiaoping Yu
Bovine lactoferrin (LF) is widely used as a nutritional additive in infant formula and functional foods, but is also a milk allergen. Therefore, rapid and sensitive detection of LF is crucial for ensuring food quality and protecting public health. Here, we report a multimodal lateral flow immunoassay (LFIA) for LF detection that integrates an M13 phage-displayed nanobody (M13-Nb) with a “four-in-one” multifunctional nanozyme, namely an AuPt nanoparticle-loaded CoCu-embedded nitrogen-doped carbon nanocomposite (CoCu-NC@AuPt). The specific M13-Nb against LF was isolated from a naïve nanobody library. The synthesized CoCu-NC@AuPt exhibits magnetic, colorimetric, peroxidase-mimetic, and photothermal properties, enabling magnetic enrichment and triple-mode sensing (colorimetric, catalytic colorimetric, and photothermal modes). The proposed assay achieved detection limits of 98 pg/mL, 8.49 pg/mL, and 37 pg/mL for the three detection modes, respectively. Practical applicability was verified in pasteurized milk, UHT milk, and yogurt samples, with recoveries of 86.2%–112.5% and coefficients of variation below 15%. This work provides a reliable and sensitive platform for on-site LF detection and demonstrates the potential of combining CoCu-NC@AuPt nanozyme with phage-displayed nanobodies to improve point-of-care testing performance.
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DOI
PubMed
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2020
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IF 4.551
Summaira Saghir,Enfa Fu,Zhenggang Xiao
With industrialization, wastewater treatment technologies have drawn huge attention and among different approaches the adsorption process is very attractive because of its simple design and low operational cost. In this paper, CoCu-layered double hydroxide (LDH) was prepared having huge surface area with a large pore diameter, which is significant for obtaining excellent adsorption properties for methyl orange (MO). After detailed adsorption kinetics analysis, the results followed pseudo second order (PSO) kinetic model having good correlation coefficient (R 2 ) values. However, adsorption isotherms data matched well with the Freundlich isotherm kinetics model. Furthermore, CoCu-LDH exhibits significant adsorption capacity even in the fifth cycle of MO adsorption, indicating that the CoCu-LDH is competitive and cost-effective adsorbent for anionic dyes from industrial wastewater.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Sumin Xu,Wenjing Liu,Jiajia Zhang,Jianying Qu
In this work, a MOF-on-MOF synthesis strategy was employed to successfully prepare (ZIF-8)-on-(CoCu-MOF) composites, which were further pyrolyzed at high temperature to obtain CoCu-CN nanomaterials. The morphological and structural properties of the materials were systematically investigated using SEM, FTIR, XRD and XPS. A novel sensor of CoCu-CN/GCE was constructed at a glassy carbon (GC) substrate, which exhibited excellent electrocatalytic activity to redox reactions of acetaminophen (PA) and p-aminophenol (4-AP). Under optimal conditions, the CoCu-CN/GCE sensor can be employed to detect simultaneously PA and 4-AP in the wider linear ranges of 0.05–270.00 μM and 0.05–170.00 μM, respectively with the lower detection limits of 0.020 μM and 0.019 μM respectively. Practical sample analysis for pharmaceutical and lake water gave satisfactory results. The proposed sensor displays excellent selectivity and stability with potential analytical applications
研究领域:
材料科学
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分析化学
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电化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）