Journal of Energy Storage
·
2026
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IF 10.7
Yangyang Xu,Pengyu Zhan,Yipeng Ye,Mengjiao Dong,Shuyun Cui,Chaolong Liu
The development of low-cost bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for advancing Zn-air batteries (ZABs). Herein, Fe/N-doped porous carbon nanofibers (Fe/N@PCNF-2) were synthesized via a one-step strategy featuring the in-situ growth of non-granular metal-organic frameworks (MOFs) directly on electrospun nanofibers, followed by pyrolysis. The optimized Fe/N@PCNF-2 combines a conductive hierarchical porous network with abundant Fe-N x -related sites, delivering an ORR half-wave potential of 0.87 V and an OER potential of 1.55 V at 10 mA cm −2 . Density functional theory (DFT) calculations further attribute the superior bifunctional activity of Fe/N@PCNF-2 to the more balanced adsorption, conversion, and desorption of oxygen-containing intermediates on the representative Fe-N 4 /C configuration. When employed as the air-cathode catalyst, the resulting liquid ZAB displayed a high-power density of 245 mW cm −2 , a minimal charging/discharging voltage gap of 0.75 V, and outstanding cycling stability over 1500 h (4500 cycles). Impressively, a flexible ZAB incorporating the Fe/N@PCNF-2 also achieved a high-power density of 215 mW cm −2 , excellent durability over 75 h (225 cycles) and remarkable flexibility under the multi-angle bending conditions. This work provides a novel and straightforward approach for designing efficient bifunctional electrocatalysts, highlighting their promising potential for practical application.
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INORGANIC CHEMISTRY
·
2026
·Vol. 65
·期 34
·20052-20063
·
IF 4.6
Niu Biye,Fu Taiping,Yan Xinrong,Gao Feixiang,Liu Yufeng,Guo Yakun,Shuai Maobing
In closed systems, hydrogen accumulation
poses significant safety
risks, necessitating the development of highly efficient hydrogen
uptake materials. The PtRu/CNFs-catalyzed hydrogenation of 1,4-bis(phenylethynyl)benzene
(DEB) shows promise; however, it is susceptible to deactivation by
trace carbon monoxide (CO) poisoning. This study successfully synthesized
a PtRuRhMnCo multicomponent alloy catalyst supported on carbon nanofibers
(PtRuRhMnCo/CNFs) via a solvothermal method, yielding an average particle
size of 1.87 nm and uniform distribution of the constituent metal
elements. The incorporation of multicomponent alloys lowers the Pt
d-band center, thereby weakening CO adsorption strength. After 10
h of reaction under 500 ppm of CO/H 2 , the alkynyl group
conversion reached 87.3%, whereas the phenyl group conversion was
18.6%. Catalytic activity remained stable over four consecutive cycles,
and hydrogen uptake capacity reached 600 mL·g –1 after a 100 h long-term evaluation. Theoretical calculations indicated
that multicomponent alloying shifted the Pt d-band center downward
from −2.39 eV to −2.43 eV, significantly reducing the
CO adsorption energy. This study demonstrates that the multicomponent
alloying strategy markedly enhances the catalyst’s CO tolerance
by modulating its electronic structure, providing a novel approach
to designing high-performance hydrogen uptake materials.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Yunpeng Xu,Dongbo Zhang,Shuping Mei,Jing Yu,Qiu Liu,Jicheng Yu
Photodeposited Pt/TiO₂ rings degraded 94.98% of LEV within 40 min. • Pt modification enhanced UV activity with low Pt leaching. • Dark controls and scavenger tests supported ROS-driven degradation. • LC–MS detected 18 products and supported five tentative pathways. • QSAR predicted reduced bioaccumulation for most products. A recoverable Pt/TiO 2 porous ceramic composite was prepared by photodeposition for ultraviolet (UV)-driven degradation of levofloxacin (LEV). The catalyst was characterized by structural, microscopic, surface, optical and elemental analyses, and its activity, stability, reactive species, transformation products and predicted toxicity were evaluated. Pt deposition preserved the anatase/rutile structure of P25 TiO 2 , introduced dispersed metallic Pt, enhanced long-wavelength absorption and improved LEV removal. Under optimized conditions (1.0 wt% Pt, 2.0 g/L catalyst, pH 9.0), 94.98 ± 0.56% of LEV was degraded within 40 min, outperforming TiO 2 . The composite retained high activity over six cycles with low Pt leaching. Scavenger tests indicated that •OH was the dominant reactive species, with h + and •O 2 − also contributing. LC–MS detected 18 transformation products and supported five tentative degradation pathways. Quantitative structure–activity relationship (QSAR) predictions predictions suggested reduced bioaccumulation and lower mutagenicity/developmental-toxicity concerns for several terminal products, although experimental toxicity validation remains necessary.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Kuan Shen,Yuqi Chen,Ming Li,Xingmei Guo,Siying Fan,Yafei Zhao,Zhao Xu,Yuanyuan Wang,Qinghong Kong,Junhao Zhang
Non-metallic carbonaceous catalysts for oxygen reduction reaction (ORR) hold great promise for applications in zinc-air batteries (ZABs). Their performance is substantially dictated by the type and quantity of heteroatoms doped within the carbon lattice. Herein, a novel polymerization-pyrolysis strategy is proposed to prepare N, P, S triply doped carbon nanosheets (NPS-C) and regulate the amount of doped atoms. The optimized sample showcases excellent ORR catalytic performance, featuring a half-wave potential of 0.81 V vs. RHE and high long-term stability. When employed as the cathode catalyst in primary ZABs, the resulting battery delivers a high peak power density of 157.9 mW cm −2 , along with high specific capacity and good rate capability. This work provides a simple and effective strategy for developing non-precious carbon-based electrocatalysts, offering new possibilities for enhancing the performance of energy storage and conversion devices.
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Molecular Catalysis
·
2025
·
IF 4.9
Min Yang,Shuang Sheng,Ziyi Wan,Yaoyao Xu,Rui Qi,Xiaofeng Luo,Weiyu Pan,Kunshan Yang,Ziqing Zhang,Guowei Deng
Hydrogen evolution reaction (HER) is a key step in the production of hydrogen (H 2 ) by overall water splitting, which is of great significance for the storage and conversion of renewable energy. Nevertheless, the elevated excess potential and insufficient stability of catalysts constrain their industrial applicability. Due to the poor catalytic activity of NiWO 4 in alkaline solution, this study investigated the effect of IB metal (IB=Au, Ag, Cu) ion doping and its interaction with different concentrations of IB x /NiWO 4 ( X = 1,2,3,4 mmol) on catalytic activity to achieve stable H 2 in alkaline media. In 1.0 M KOH solution, the current density is 10 mA cm −2 , the Au 3 /NiWO 4 exhibits a low overpotential is 86.11 mV, the slope of Tafel is 115.16 mV dec −1 , and the overpotential of Ag 3 /NiWO 4 is 168.41 mV, with a Tafel slope of 64.32 mV dec −1 , the catalyst also showed long term stability for 150 h, the Au 3 /NiWO 4 NF‖Au 3 /NiWO 4 NF catalysts achieved a low voltage of 1.45 V at 10 mA cm −2 current density for 100 h. The synergistic interactions of bimetals present a novel approach for enhancing catalyst design and optimizing performance.
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Frontiers in Pharmacology
·
2025
·
IF 4.8
Tangna Hao,Xiaokui Huo,Zhen Li,Changyuan Wang,Sha Wu,Anni Song,Fengyu Zhang,Kexin Liu
Introduction: Cisplatin (DDP), a platinum-based chemotherapy drug, shows broad antineoplastic activity, however, its clinical use is limited by dose-dependent nephrotoxicity, a major challenge in cancer therapy. The purpose of this study was to investigate the mechanism by which quercetin-polyethylene glycol-polycaprolactone (Que-PEG-PCL) micelles simultaneously enhance the cytotoxicity of DDP against cancer cells and reduce its nephrotoxicity.Methods: Rodent models and HEK293 cells were used to evaluate the renoprotective effects of Que-PEG-PCL micelles. Pharmacokinetics focused on OCT2-mediated renal DDP disposition. Antitumor activity was assessed in CT26 cells and syngeneic tumors. Key assessments included oxidative stress, apoptosis, renal markers, and histopathology.Results:: Que-PEG-PCL reduced DDP-induced nephrotoxicity, lowering creatinine and BUN to 42% and 38%. It also reduced oxidative stress and improved antioxidant activity. DDP plasma exposure increased to 323%, with renal clearance reduced to 14%, due to OCT2 inhibition. In a CT26 syngeneic model, combination therapy inhibited tumor volume by 84% compared to control group.Discussion: Que-PEG-PCL enhanced DDP’s therapeutic window by limiting renal accumulation and promoting tumor cell apoptosis. This dual-action strategy provides a novel approach for improving the clinical efficacy of DDP-based cancer therapy.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Hanfang Zhang,Junhao Dai,Banglong Shen,Donghui Zhang,Yanfang Wang,Bingbing Qiu,Huaqiang Chu
Mo-based catalysts have received widespread attention for their promising hydrogen evolution reaction (HER) efficiency. However, single Mo-based catalysts still have some shortcomings in terms of catalytic activity. Designing heterostructure is an effective strategy to optimize electron configuration, accelerate HER dynamics and modulate microstructure. Herein, a novel cross-linked sheet-like r-FeMo/NF (Fe 2 N/Mo 2 N/MoO 2 ) electrocatalyst with multiple heterostructures was prepared by a facile two-step method involving hydrothermal growth followed by nitridation, which directly formed the active material on nickel foam (NF). The formation of multiple heterostructures results in the redistribution of electrons between Fe and Mo species, promoting charge transfer and improving HER activity. As a result, the as-prepared r-FeMo/NF catalyst demands a low overpotential of 46.1 mV to drive the current density of 10 mA cm −2 for the HER in 1 M KOH. Moreover, it demonstrates outstanding long-term stability, maintaining excellent performance for 100 h at both 10 and 100 mA cm −2 . This work can provide valuable insights into designing highly efficient electrocatalysts with multiple heterostructures.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ya Gao,Zhenqiang Jiang,Xuewen Xia,Xueqiang Zhang,Xingli Zou,Xionggang Lu,Wenhe Wu
Developing robust electrocatalysts capable of operating at ampere-grade current densities is imperative for practical water electrolysis. Herein, we report a bifunctional electrocatalyst with minimal Ru metal (0.78 wt%) anchored on the phosphidated Fe-based metal-organic framework (Ru@P-FeMOF). Experimental and theoretical analyses reveal that Ru nanoclusters, with a narrow size distribution of 1.6–2.8 nm, are uniformly deposited on the interwoven P-FeMOF nanosheets, which are vertically arranged on the substrate. Such a structure provides abundant active sites and facilitates interfacial charge transport due to the optimized d-band center and the lowest energy barrier of the rate-determining step, significantly boosting hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). It is proved that Ru nanoclusters are more conducive to HER, while the presence of Fe 2 P coupling with FeMOF contributes more to reducing O 2 desorption free energy. The fabricated catalyst exhibits superior electrochemical activity and high stability in alkaline water electrolysis. Only 20 and 184 mV of overpotentials are required for HER at 10 and 1000 mA cm −2 , respectively, while 171 mV @ 50 mA cm −2 and 258 mV @ 1000 mA cm −2 for OER in 1 M KOH. Moreover, Ru@P-FeMOF exhibits outstanding durability with negligible degradation after running 10,000 cycles or over 200 h. The cell voltage with Ru@P-FeMOF as both anode and cathode in overall water splitting is as low as 1.43/1.74 V at 10/1000 mA cm −2 , showing excellent performance at industrial-level current densities.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yingying Wang,Jianyun Zhang,Xinglong Zhang,Yingxuan Liu,Xiaoshan Huang,Zhaolei Ba,Naiqiang Yin,Jing Yu,Chundong Liu
The detection of trace thiram is critically important due to its environmental persistence and biotoxicity. Conventional pesticide residue analysis faces fundamental limitations in sensitivity and accuracy due to low analyte recovery efficiency during sampling, making surface-enhanced Raman spectroscopy an ideal solution for trace thiram monitoring. In this study, we developed a high-performance SERS substrate based on in-situ synthesized silver nanoparticle-decorated indium tin oxide (AgNPs/ITO) glass, fabricated via cyclic voltammetry electrochemical deposition. The substrate demonstrated exceptional sensitivity for standard probe molecules such as R6G, achieving an enhancement factor (EF) of up to 8.62 × 10 6 with excellent signal uniformity and universality. For pesticide detection, the substrate exhibited a remarkably low LOD of 0.55 μg/L for thiram and enabled effective in-situ identification of thiram residues on vegetable leaf surfaces, demonstrating robust capability for practical pesticide residue analysis.
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Small
·
2025
·
IF 12.1
Zi-Ye Liu,Jiu-Jiu Ge,Lei Yu,Sian-Hong Ong,Lian-Jian Zhang,Ji-Ming Hu
Efficient and durable alkaline water electrolysis at industrial current densities remains a key challenge due to sluggish oxygen evolution kinetics and poor stability of hydrogen evolution reaction (HER) catalysts in alkaline media. Herein, a unique Pt–Ni/Fe coordinated single-atom Pt catalyst anchored on nickel-iron layered double hydroxide (ePt/NiFe LDH), is reported synthesized via a facile electrodeposition process within 30 min. Unlike the conventional Pt-O-M (metal) coordination, the newly discovered Pt–Ni/Fe bonding structure significantly modulates the electronic structure of the NiFe active sites, thereby synergistically enhancing both HER and OER activities. Benefiting from this optimized coordination environment and the nanoflower architecture, the ePt/NiFe LDH@e-nf electrode delivers outstanding overall water splitting performance, achieving a low cell voltage of 1.42 V at 10 mA cm −2 and 1.54 V at 100 mA cm −2 without iR compensation. More importantly, it maintains ultrastable operation over 1440 h at an industrial-level current density of 500 mA cm −2 , outperforming commercial Pt/C–RuO₂ benchmarks. This work demonstrates a promising strategy for designing high-performance and durable single-atom catalysts for practical alkaline water electrolysis applications.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qin Li,Jinghan Sun,Aiguo Kong,Rui Liu
Reasonable heterogeneous interface engineering is crucial for achieving efficient and robust oxygen reduction reactions (ORR). Herein, a ferrocene enhanced interface coupling catalyst has been successfully developed, which consists of cobalt‑nitrogen-doped carbon dodecahedra (Co@NC) with cobalt-ferrocene MOF nanosheets (Co-FcDC). The Co@NC/Co-FcDC catalyst demonstrates superior ORR electrocatalytic activity with a half-wave potential of 0.82 V and a good durability. This promoted performance is attributed to the Fc-enhanced interface coupling interaction between Co-FcDC and Co@NC, which optimizes the electron structure of Co nanoparticles (NP s), increases oxygen adsorption, and reduces the energy barrier for converting O-containing intermediates (*OH) into OH − . This research offers a valuable perspective for the reasonable construction of ferrocene-based heterogeneous interfaces for energy storage and conversion.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Rui Ming,JingJing Du,Shaobo Ye,Zhao Liang,Qiao Liu,Xuyang Lu,Qiliang Wei,Weiyou Yang,Qing Shi
The design of efficient and cost-effective bifunctional catalysts to replace precious metal-based catalysts remains a critical challenge in electrocatalytic water splitting. Herein, we report a Mo-Fe co-doped Ni 3 S 2 nanorod arrays grown on a nickel-iron foam substrate via a facile hydrothermal synthesis. This dual metal-doped nanorod structure synergistically modulates the electronic structure while maximizing accessible active sites, endowing the Mo-Fe-Ni 3 S 2 electrode with exceptional bifunctional activity for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline media. The resulting Mo-Fe-Ni 3 S 2 electrode requires only 180 mV for HER and 275 mV for OER at a current density of 100 mA cm −2 , coupled with long-term stability exceeding 50 h. Remarkably, when integrated into a single-stack cell for practical application, the Mo-Fe-Ni 3 S 2 electrode exhibits outstanding performance, achieving a current density of 100 mA cm −2 at a potential of 1.87 V and showing no potential degradation after 100 hours of continuous operation at 100 mA cm −2 . This work not only presents a high-performance bifunctional catalyst but also provides fundamental insights into the design of advanced electrocatalysts through rational heteroatom doping strategies.
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