ADVANCED MATERIALS
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2025
·
IF 26.8
Ghazala Ashraf,Haonan Wang,Khalil Ahmed,Huiwen Xiong,Jilie Kong,Xueen Fang
Advancing clinical diagnostics requires platforms that combine catalytic efficiency, biocompatibility, and real-time, in vivo accessibility. Herein, this study reports a structurally integrated FePc–ZIF-8–MX nanozyme that combines the redox activity of FePc, the porous confinement of ZIF-8, and the electrical conductivity of MX. Synthesized via a low-energy, ambient-condition process, this hybrid enables efficient electron transfer, enhanced analyte enrichment, and sustained catalytic activity in physiological environments. To translate this functionality into a wearable diagnostic format, the hybrid is seamlessly incorporated into a microneedle array, offering minimally invasive access to interstitial fluid for continuous L-cysteine (L-Cys) monitoring. The resulting platform exhibits high selectivity and sensitivity across complex biological matrices, including serum, urine, cultured cells, and a murine model of myocardial infarction. This study presents a multifunctional electrochemical platform that enables on-body metabolite monitoring through a microneedle-integrated nanozyme interface. To the best of our knowledge, it constitutes the first realization of real-time, in vivo L-Cys sensing in this format, setting a new benchmark for precision biosensing in translational healthcare.
研究领域:
生物医学工程
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材料科学
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临床诊断
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DOI
PubMed
高影响因子
Environmental Science-Nano
·
2024
·Vol. 11
·期 7
·3104-3113
·
IF 5.8
Feijin Zhou,Wenying Cui,Chenggang Liu,Cheng Yao,Chan Song
Exploring novel nanozymes with high activity and stability is necessary in sensing to replace some natural enzymes. Here, iron phthalocyanine (FePc) was supported on two-dimensional (2D) reduced graphene oxide (rGO), synthesizing FePc@rGO nanocomposites by a one-pot method. FePc@rGO nanocomposites not only can catalyze the oxidation of colorimetric substrates, but also can degrade rhodamine B (RhB) with the help of permonosulfate (PMS). With the introduction of rGO, FePc was loaded on their surfaces. Compared with free FePc, FePc supported on rGO has smaller size, resulting in its larger specific surface area. These factors are better for exposing the active sites of catalysts and increasing the mass transfer rate between catalysts and substrates. Therefore, FePc@rGO nanocomposites exhibit enhanced catalytic activity. Based on the oxidase-like activity of FePc@rGO nanocomposites, a sensing platform was constructed for the detection of thiosulfate (S2O32−) with a detection limit of 0.124 μM and a detection range of 2–50 μM. In addition, this sensing system can be used for the visual detection of S2O32− by a portable smartphone. Furthermore, the degradation efficiency of FePc@rGO nanocomposites to RhB could be as high as above 94% for just 10 min when the pH ranged from 3 to 10. This work provides an avenue for the synthesis of novel catalysts as multifunctional nanozymes for detection and organic pollutant degradation.
研究领域:
分析化学
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环境科学
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材料科学
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DOI
高影响因子
Nanoscale Advances
·
2022
·Vol. 4
·期 9
·2171-2179
·
IF 5.598
Dawei Xu,Xuhui Li,Tingting Zheng,Ruixue Zhao,Pengyu Zhang,Kai Li,Zhongfeng Li,Lirong Zheng,Xia Zuo
Here, a series of Fe/N/C catalysts with different proportions and pyrolysis temperatures are prepared by co-pyrolysis of melamine with a γ-cyclodextrin metal–organic framework (γ-CD-MOF) containing iron(II) phthalocyanine (FePc). Due to the restriction effect of the host and guest at the molecular level, γ-CD-MOF can effectively avoid the π–π stacking of FePc and restrain the agglomeration of Fe atoms during pyrolysis. The phases and structures of the catalysts are characterized, which proves that the obtained catalyst has a three-dimensional porous and internal cavity structure with abundant surface area (1055.317 m2 g−1) and Fe is atomically dispersed in nitrogen-doped carbon. The onset potential (0.988 V vs. RHE) and half-wave potential (0.846 V vs. RHE) of FePc@CD/M (1 : 20)-1000 are superior to those of a commercial 20% Pt/C catalyst. FePc@CD/M (1 : 20)-1000 also exhibits an approximately four-electron (3.84) transfer process, good stability and excellent methanol tolerance.
研究领域:
材料科学
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催化化学
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2021
·
IF 19.503
Hengli Qian,Guanjie Yu,Qidong Hou,Yifan Nie,Chuanyunlong Bai,Xinyu Bai,Haozhi Wang,Meiting Ju
To achieve efficient degradation of pharmaceutical and personal care products (PPCPs), dual reaction centers [email protected] photo-Fenton catalysts with high-speed electron transmission channel were designed through surface hydroxyl-induced assembly. In [email protected] catalytic system, the photocatalysis center of ZnO and Fenton catalytic center of FePc were formed simultaneously. Concept and process for the control of hydroxyl groups to construct a dual reaction center [email protected] photo-Fenton catalyst were verified ingeniously based on the density functional theory (DFT) analysis and experimental results. A series of catalysts, including ZIF-8 (400 ℃-N 2 ), FePc (400 ℃-N 2 ), ZIF-8 (400 ℃)-FePc (400 ℃) and [email protected] were prepared and characterized by XRD, FTIR, TEM, BET, XPS, PL and DRS, respectively. The [email protected] catalyst showed superior performance for the photo-Fenton degradation of ibuprofen, affording degradation rate larger than 90 % within just 10 min under simulateed sunlight. The excellent performance of [email protected] catalyst is mainly attributed to the synergistic effect between dual reaction centers of [email protected] This work provides a novel method to construct dual reaction centers [email protected] catalyst with efficient photo-generated electrons transmission link and to strengthen the synergistic effect of dual reaction centers.
研究领域:
环境化学
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催化
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材料科学
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光化学
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产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
·
IF 4.1
Chen Yang,Quanxiong Lu,Xianbo Jia,Yujia Ma,Xianliang Song
The development of efficient, non-precious metal catalysts for renewable energy applications is a critical step toward sustainable power generation. This research presents and develops a simple preparation method to prepare composite catalysts based on metal phthalocyanines (MPcs) and fullerene-C 60 to improve the catalytic performance of oxygen reduction reactions (ORR) in direct lignin fuel cells ( DLFC). Electrochemical tests revealed that the FePc-C 60 catalyst demonstrated excellent catalytic performance in the ORR, with a half-wave potential (E 1/2 ) of 0.81 V, which was similar to the 0.82 V of Pt/C. Furthermore, the FePc-C 60 catalyst exhibited a near 4-electron transfer reaction mechanism, with a limiting current density of 3.9 mA cm −2 and H 2 O 2 yield below 4 %. The Tafel slope measured at 31 mV dec −1 , which was lower than the 49.6 mV dec −1 observed for the Pt/C, implying that the catalyst achieves a higher reaction rate at lower potentials. In fuel cell applications, compared to Pt/C, DLFC with FePc-C 60 as the cathode catalyst exhibited a higher maximum power density (590 mW m −2 ), surpassing Pt/C (381 mW m −2 ). This work successfully constructed an efficient and stable non-precious metal catalyst, offering a new perspective for the development of non-precious metal catalysts and high-value utilization of lignin.
研究领域:
能源材料
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电催化
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燃料电池
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可再生能源
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DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.2
Hua Gao,Yong Zhu,Zhibing Wen,Ran Zhao,Zhi Chen,Siyao Wang,Shuanglin He,Kuang Peng,Yiwen Tang,Licheng Sun,Fei Li
Solar-driven photocatalytic CO 2 conversion offers a sustainable solution for greenhouse gas mitigation and renewable energy storage. While metal phthalocyanines (MPc) exhibit excellent CO 2 reduction capabilities, their practical application in dispersed photocatalytic systems faces limitations of the stacking of MPc molecules that reduces active site accessibility, and inefficient electron transfer limited by diffusive mass transport. To address these challenges, we developed a bioinspired dye-sensitized RuP-TiO 2 -FePc nanosheets (NSs) hybrid system, where ultrathin FePc NSs obtained by liquid-phase ultrasonic exfoliation enhance active site exposure and mass transfer, while TiO 2 serves as a mediator to facilitate electron transfer between the photosensitizer and FePc NSs. Time-resolved spectroscopic studies demonstrate that TiO 2 plays a dual role: it spatially organizes functional components to enable surface electron transfer by shortening intermolecular distances, while also functioning as a semiconductor bridge to facilitate charge transport. This synergistic design achieves a remarkable CO production rate of 27.3 mmol g –1 h –1 (> 98% selectivity) and exceptional stability (TON CO = 1363 over 100 h), outperforming many noble-metal-based systems. Our work demonstrates a robust strategy for optimizing bulk catalysts through 2D exfoliation and controlled heterogenization, offering a versatile platform for efficient and durable artificial photosynthesis.
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 18
·3229
·
IF 5.1
Xinyi Yang,Yuxin Tang,Fei Qi,Zhihan Xue,Huiying Zhang,Zhaohai Ni,Bo Feng,Ziyang Yue,Guangbo Che
Efficient and reusable photo-Fenton catalysts require the rational integration of photocatalytic platforms, effective H 2 O 2 activation sites, and practical immobilization strategies. Herein, nitrogen-vacancy-rich tubular g-C 3 N 4 (HCNT) was prepared as the photocatalytic platform. Iron (II) phthalocyanine (FePc) was then loaded onto HCNT to form the FePc/HCNT composite for antibiotic degradation. The FePc/HCNT composite was further immobilized in a poly (vinylidene fluoride) (PVDF) membrane, denoted as FePc/HCNT-PVDF, to facilitate catalyst recovery and reuse. Benefiting from the micrometer-scale tubular morphology, the FePc/HCNT remained exposed on the membrane surface, preserving accessible catalytic interfaces and reducing encapsulation within the polymer matrix. The tubular architecture facilitated reactant transport, while surface nitrogen vacancies enhanced photogenerated-carrier separation and utilization. Component-dependent experiments revealed that FePc served as the primary center for H 2 O 2 activation, whereas HCNT functioned as a defect-engineered tubular photocatalytic platform that promoted photogenerated-carrier separation and reactive oxygen species formation. The optimized FePc/HCNT achieved 94% oxytetracycline degradation within 60 min, with an apparent rate constant of 0.04462 min −1 , approximately 11 times higher than bulk g-C 3 N 4 , and exhibited broad-spectrum degradation capability toward various organic pollutants, including rhodamine B, tetracycline, amoxicillin, and ciprofloxacin. The FePc/HCNT-PVDF membrane removed 90% of oxytetracycline within 60 min and maintained stable performance over ten cycles. This work provides insights into the integrated roles of nitrogen vacancy regulation, FePc-mediated H 2 O 2 activation, and morphology-assisted membrane immobilization in the development of reusable g-C 3 N 4 -based photo-Fenton catalysts.
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Wenlin Zhang,Di Jiao,Lu-Hua Zhang,Fengshou Yu
Iron phthalocyanine (FePc) is a promising non-noble metal catalyst for oxygen reduction reaction (ORR). While, with the plane-symmetric FeN 4 site, the ORR activity of FePc is generally low due to its low ability to adsorb and activate O 2 . Herein, we anchor FePc on Mg(OH) 2 / N -doped carbon nanosheets building the ternary plate-like catalyst FePc/Mg(OH) 2 /NC. Theoretical and experimental results show that due to the formation of FePc/Mg(OH) 2 heterojunction, the electron spin state of the monodisperse iron active site ranges from medium spin (MS, t 2g 5 e g 1 ) to low spin (LS, t 2g 6 e g 0 ), enhancing the adsorption with oxygen-containing intermediates, thereby improving the dynamics of the oxygen reduction reaction. As a result, FePc/Mg(OH) 2 /NC catalyst exhibits an outstanding performance (E 0 = 1.02 V, E 1/2 = 0.91 V) for ORR, superior to the commercial Pt/C electrode (E 0 = 1.01 V, E 1/2 = 0.85 V) and FePc/NC (E 0 = 0.97 V, E 1/2 = 0.87 V) under the alkaline conditions. This work offers a new way for the rational design of effective Fe N C catalysts with the support of metal oxides/hydroxides.
研究领域:
材料科学
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电化学
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催化化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 10
·100528
·
IF 4.316
Zhanwei Xu,Hao Yan,Kai Yao,Kang Li,Jiayin Li,Keren Jiang,Zhi Li
Efficient catalysts for the reduction reaction of SOCl2 are desired for lithium/thionyl chloride batteries with high and stable voltage. In this work, iron phthalocyanine particulates fixed on activated carbon substrates (FePc/AC) are synthesized by an in situ solid approach under the temperatures lower than 300 °C. U–T curves, the value distance to the average U, dU/dT via mathematical differentiation and numerical analysis were employed to investigate to the catalytic reduction of SOCl2 systematically. The U–T curve of the battery containing the FePc/AC displays almost perfect rectangle profile. The average voltage of the battery contains the FePc/AC is 3.00 V, 0.21 V higher than that without the catalysts. After discharge, the surface of the carbon cathode containing FePc/AC displays a well-constructed loose morphology composed of LiCl nanoparticles around 100 nm in diameter. The inside of carbon cathode shows a dense morphology with a mount of nano holes around 50 nm, indicating that the formed LiCl permeates into the interior of the carbon cathode, attributing to that the FePc/AC nanocomposite catalysts facilitate the reduction of SOCl2, leading the formation loose LiCl film in nano scale for electrolyte SOCl2 and the formed LiCl diffusion.
研究领域:
材料科学
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电化学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Hengli Qian,keyuan Zhang,Chao Xie,Qidong Hou,Ruite Lai,Guanjie Yu,Tianliang Xia,Xinyu Bai,Meiting Ju
To achieve efficient degradation of pharmaceuticals and personal care products (PPCPs), the g-C₃N₄-WO₃@FePc system was in-situ constructed using a calcination method, with g-C₃N₄-WO₃ serving as the support matrix. This approach effectively resolved the issue of FePc aggregation and self-degradation in aqueous environments. The g-C₃N₄-WO₃@FePc catalyst demonstrated excellent performance in the photo-Fenton degradation of acetaminophen (ACE), achieving over 90% degradation within just 20 minutes under simulated sunlight. The catalyst's superior performance is attributed to the synergistic effects between the reaction centers. The π-π conjugation between g-C₃N₄-WO₃ (the photocatalytic center) and FePc (the Fenton catalytic center) facilitates the transfer of photo-generated electrons from the photocatalytic center to the Fenton catalytic center, enabling rapid regeneration of Fe(II) and generating a significant amount of active species (•O₂⁻ and 1 O₂). To validate the stability of the catalytic system, factors such as ionic impurities and water types affecting performance were investigated and analyzed. Additionally, cell toxicity and antimicrobial tests were conducted to evaluate the toxicity of ACE degradation intermediates and the ecological stability of g-C₃N₄-WO₃@FePc, revealing its potential for practical wastewater treatment applications.
研究领域:
环境催化
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光化学
·
水处理
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材料科学
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环境毒理学
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纳米催化
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污染物降解
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产品关联
DOI
PubMed
高影响因子
Science Bulletin
·
2023
·
IF 18.9
Quanjun Tang,Liang Bai,Chen Zhang,Rongwei Meng,Li Wang,Chuannan Geng,Yong Guo,Feifei Wang,Yingxin Liu,Guisheng Song,Guowei Ling,Haitao Sun,Zhe Weng,Quan-Hong Yang
A dissolved-oxygen seawater battery (SWB) can generate electricity by reducing dissolved oxygen and sacrificing the metal anode at different depths and temperatures in the ocean, acting as the basic unit of spatially underwater energy networks for future maritime exploration. However, most traditional oxygen reduction reaction (ORR) catalysts are out of work at such ultralow dissolved oxygen concentration. Here, we proposed that the electronic axial stretching of the catalyst is essentially responsible for enhancing the catalyst’s sensitivity to dissolved oxygen. By modulating the lattice of iron phthalocyanine (FePc) as a model catalyst, the unique electronic axial stretching in the z -direction of planar FePc molecules was realized to achieve a boosted adsorption and electron transfer and result in a much improved ORR activity in lean-oxygen seawater environment. The peak power density of a homemade SWB using a practical carbon brush electrode decorated by the FePc is estimated to be as high as 3 W L − 1 . These results provide inspiring insights into the interaction between the catalyst and complicated seawater environment, and propose the electronic axial stretching as an effective indicator for the rational design of catalysts to be used in extremely lean-oxygen environment.
研究领域:
材料科学
·
电化学
·
能源存储
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产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Fenghe Duan,Chuanpan Guo,Mengyao Hu,Yingpan Song,Minghua Wang,Linghao He,Zhihong Zhang,Riccardo Pettinari,Liming Zhou
A promising nanocarrier of the complementary DNA (cDNA) toward miRNA-155 was synthesized on the basis of the nanohybrid type of Ti 3 C 2 T x MXene nanosheets decorated using iron phthalocyanine quantum dots (FePc QDs) (denoted as Ti 3 C 2 T x @FePcQDs) to construct a novel ultrasensitive impedimetric aptasensing system for microRNA-155 (miRNA-155). Owing to π–π* stacking interaction between Ti 3 C 2 T x nanosheets and FePc QDs, the homogeneous nanostructure of the Ti 3 C 2 T x @FePcQD nanohybrid that comprises mixed-valence states (Ti 2+ /Ti 3+ and Fe 2+ /Fe 3+ ), multicomponent (Ti-O and Ti-C), and various N-related groups was achieved. The constructed Ti 3 C 2 T x @FePcQDs-based aptasensor displayed an ultrahigh sensitivity for detecting miRNA-155 with a low detection limit of 4.3 aM (S/N = 3) within the miRNA-155 concentration ranging from 0.01 fM to 10 pM. Compared with the individual component-based aptasensors and other reported miRNA-155 aptasensors, the proposed impedimetric aptasensing system exhibited substantial merits of a feasible preparation process, non-use of labels or electrochemical indicators, fast response time, and comprehensive sensing performances for detecting miRNA-155. This strategy for determining miRNAs can extensively be applied as the platform for anchoring other kinds of aptamers in detecting diverse targets, thus indicating its great potential application for the early diagnosis of cancer biomarkers.
研究领域:
纳米技术
·
生物传感器
·
分析化学
·
分子生物学
·
癌症研究
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DOI
高影响因子
危险品化学品经营许可证（带存储）