COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Wenjing Yang,Xujie Zhang,Chenhang Ding,Wurikaixi Aiyiti,Cijun Shuai
Bacterial infections especially bacterial biofilm infections have always been a major obstacle to the reconstruction of deep skin defects. Herein, a photothermal activated multifunctional nanocatalyst (Ni@ZIF-C) is synthesized by doping Ni into zeolitic imidazolate framework-67 (ZIF-67) and carbonizing, following by introducing into polycaprolactone (PCL) to prepare porous scaffolds by selective laser sintering. Especially, the Ni@ZIF-C nanocatalyst endows scaffold favorable chemo/photodynamic/photothermal triple-mode antibacterial activity under near-infrared light irradiation. On the one hand, the highly conductive Ni@ZIF-C improves the separation efficiency of photogenerated electron-hole pairs to trigger reactive oxygen species (ROS) generation, achieving photodynamic sterilization. On the other hand, the superior photothermal conversion efficiency of Ni@ZIF-C in scaffold not only directly destruct bacterial biofilms by hyperthermia but also enhance its own peroxidase-like activity to induce more ROS production, and the latter is bactericidal by chemical mode. Importantly, the destruction of the biofilms enables the pre-generated ROS to kill deep bacteria, achieving a triple-mode combined or even synergistic antibacterial efficacy. Results demonstrated that the PCL/Ni@ZIF-C scaffold with triple bactericidal modalities presents stronger bactericidal ability than PCL/ZIF-67 and PCL scaffolds. Encouragingly, it remarkably destroyed S. aureus and E. coli biofilms and inhibited biofilm formation, effectively triggered massive ROS generation and ultimately eradicated the bacteria deep within the biofilms. Taken together, the scaffold exhibited tremendous potential in utilizing photothermal activated multimodal combined antibiofilm and antibacterial therapy.
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高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yunlei Cen,Yuanyuan Zhou,Mingshi Zhu,Ke Zheng,Shaoqi Zhou
In this work, Ti/TiO2-RNTs/SnO2–Sb–Ni-La electrodes were developed in three deposition stages. TiO2-RNTs improved the bonding of the bottom layer, and Ni–La codoping resulted in higher film stability. Compared with other electrodes, this electrode exhibits excellent performance with a denser structure, higher OEP (2.17 V), lower Rct (5.36 Ω), longer electrode strengthening life, and larger active specific surface area. The degradation of oily wastewater revealed an oil removal rate equal to 97.88% under optimal conditions. In comparison to the Ti/TiO2-RNTs/SnO2–Sb obtained via the one-step hydrothermal technique, the service life improved by 8.60 times, and the degradation rate (RD) of the current electrode (k = 0.0254 min–1) was enhanced by 2.67 times, whereas the removal rate remained stable after 10 cycles. Under the continuous attack of free radicals such as •OH, 48 types of organic matter in wash oil were decomposed, and most of the alkanes and polycyclic aromatic hydrocarbons were mineralized. Compared with direct current, pulse current electrolysis of the oil-washing wastewater can save 47.95% electrical energy, and the energy consumption of chemical oxygen demand removal per unit mass can be reduced by 72.02%. Therefore, the Ti/TiO2-RNTs/SnO2–Sb–Ni-La pulse electrochemical oxidation method is expected to reduce energy loss and improve the electrochemical treatment of oily wastewater.
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PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Yi-Lin Zhao,Lu-Hui Li,Li-Na Zhu,Xin Wang
Hydrogen peroxide (H₂O₂) is a crucial oxidative stress biomarker associated with various diseases, especially tumor progression and inflammatory disorders. Accurate monitoring of H₂O₂ is essential for understanding the microenvironmental dynamics involved in disease development. However, traditional metal oxide-based electrochemical sensors often suffer from low catalytic efficiency and nanoparticle aggregation. Herein, we report a high-performance, binder-free H₂O₂ sensor based on a rationally engineered Au–CoMn₂O₄/Ni foam heterostructure. This integrated architecture leverages the conductive 3D Ni foam and an interface-mediated interaction-enhanced charge transfer interface to significantly enhance sensing performance. The resulting sensor exhibits two sensitivities, 3100.04 μA·mM⁻¹·cm⁻² (2–666 μM) and 821.41 μA·mM⁻¹·cm⁻² (1.066–22.166 mM), an ultralow detection limit of 0.036 μM, and a practical linear detection range spanning 2 μM–22.166 mM (R² = 0.99). It also demonstrates excellent selectivity, long-term stability (<3% signal decay over 30 days), and reproducibility (RSD ≈ 2.5%). Notably, the sensor enables real-time electrochemical monitoring of H₂O₂ released by A549 lung cancer cells under phorbol 12-myristate 13-acetate (PMA) stimulation, highlighting its potential as a platform for advanced electrochemical sensing. Importantly, the sensing mechanism can be well interpreted via interfacial structure analysis and electrochemical validation, without requiring theoretical simulations.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Weiju Hao,Dongxue Yao,Qiuyu Xu,Ruirui Wang,Chenglong Zhang,Yanhui Guo,Ruimin Sun,Mingxian Huang,Ziliang Chen
The aggregation of transition metal nanoparticles severely degrades their catalytic activity towards water splitting. Although this issue can be alleviated by the popular carbon-hybridization and metal foam-confinement strategies, the complicated fabrication procedure and the support corrosion parasitic in these strategies inevitably result in high usage cost and unsatisfactory cycle durability. Herein, we in-situ space-confined boron-inserted Fe-Ni solid solution nanosheets onto the activated hydrophilic sponge (B-FeNi@HS) via substitution of Fe by Ni and insertion of B within the Fe lattice interstitials in the presence of NH 4 + -modified dimethylamino borane solution. When served as the bifunctional electrocatalysts, B-FeNi@HS only needs overpotentials of 54 and 171 mV to afford 10 mA cm –2 for HER and OER in 1.0 M KOH, respectively. In addition, the alkaline overall-water splitting system constructed by using B-FeNi@HS as two-electrodes only delivers an ultralow cell voltage of 1.456 V to drive 10 mA cm –2 , and shows negligible activity decay even at 500 mA cm –2 for 3 days. Such outstanding performance can be traced to the synergism of corrosion-resistant support, hierarchical morphology with favorable surface area and dual solid-solution crystal structure, ensuring robust mechanical stability, rapid charge/mass transfer kinetics as well as the energetically favorable formation of intermediates during catalysis. The proposed strategy is versatile and can be extended to synthesize other efficient B-inserted Fe-based electrocatalysts.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
·
IF 19
Steven Hu,Xinghui Liang,Huimin Yuan,Zhenning Xu,Jun Wang,Hai Liu,Kaihua Xu,Xing Ou
The development of Co-free ultrahigh-Ni (Ni > 0.9) layered oxide cathode materials holds immense promise for addressing electric vehicle range limitations and cost efficiency, though substantial obstacles persist in structural durability, thermal stability, and safety. To concurrently enhance the structural integrity and interfacial stability of LiNi 0.95 Mn 0.05 O 2 , a dual-functional co-regulation strategy integrating Zr/Al bulk doping with Li 6 Zr 2 O 7 surface coating is implemented. Controlled Zr 4+ /Al 3+ co-incorporation expands interlayer spacing, strengthens transition metal–oxygen bonding, and stabilizes the oxygen framework, thereby improving Li + diffusion kinetics while suppressing cation disorder. Concurrently, the epitaxially Li 6 Zr 2 O 7 coating effectively passivates the surface by eliminating residual lithium species, inhibiting grain coarsening, and suppressing interfacial side reactions. These coupled bulk-surface modifications synergistically inhibit mechanical stress-induced crack propagation and deleterious phase transformations. Therefore, the optimized cathode achieves 96.9% capacity retention after 100 cycles at 1 C, while maintaining stable operation under extreme electrochemical conditions (4.5 V cutoff voltage) and thermal extremes (−10 °C/60 °C). This work demonstrates a synergistic modification paradigm for designing robust ultrahigh-Ni cathodes, thereby propelling the advancement of next-generation high-energy density lithium-ion batteries.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2022
·
IF 24.319
Aiqun Kong,Mao Peng,Menghui Liu,Ye Lv,Houjun Zhang,Yusheng Gao,Jing Liu,Yan Fu,Wei Li,Jinli Zhang
Herein, we developed a novel and simple strategy to construct Pt-decorated TiO 2 /β-Ni(OH) 2 nanosheet arrays that steadily deliver large current densities in alkaline electrolyte. It is of great interest to find that the versatile role of few-layered Ti 3 C 2 endows the unique growth mechanism of Pt/TiO 2 /β-Ni(OH) 2 . It is worth noting that the interconnected array electrode exhibits noticeable hydrogen evolution reaction (HER) performance, achieving ultralow overpotentials of 107, 145 and 184 mV at high current densities of 500, 1000 and 1500 mA cm −2 , respectively, which outperforms most reported HER electrocatalysts. It requires only 1.95 V to drive 1000 mA cm −2 towards full water electrolysis along with considerable stability. It is demonstrated for the first time that the synergistic effect of Pt and TiO 2 /Ni(OH) 2 the enhanced HER performance. This work reports a robust nanoarray support for Pt electrocatalyst to break through its intrinsic barrier in alkaline HER and under large current density.
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高影响因子
Advanced Energy Materials
·
2024
·Vol. 15
·期 3
·2402295
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IF 24.4
Songshan Zhu,Shimin Ma,Di Song,Sufang He,Yunzhu Wang,Jichang Lu,Tianhao Ai,Yongming Luo
The regulation and stabilization of strong metal-support interactions (SMSI) in high temperature hydrogen-rich reaction condition remains a huge challenge due to its structural sensitivity. Herein, tunable SMSI is constructed and stabilized on TiO 2 supported Ni catalysts by TiO 2 crystal phase engineering strategy, and then a SMSI-degree-depended ethanol stream reforming (ESR) performance is demonstrated. Rutile supported Ni exhibited a weakened SMSI with 48.6% coverage, exposing more metallic Ni and Ni-TiO 2 perimeter interface sites, and displayed exceptional H 2 yield of 4.7 mol H2 /mol ethanol and an ultra-long stability of 420 h without deactivation at 500 °C. The low reaction energy and high resistance to carbon deposition (0.9 mg c /g cat ·h) and Ni 0 sintering on Ni/r-TiO 2 catalyst explained its excellent catalytic performance. Furthermore, the effect of well-defined SMSI structures on the reaction pathway and deactivation mechanism of the ESR is clarified. This work provides a precedent for the tailor and application of SMSI in high temperature hydrogen-rich reaction conditions.
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高影响因子
Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-16
·
IF 23.655
Cheng Haoran,Pan Yamin,Wang Xin,Liu Chuntai,Shen Changyu,Schubert Dirk W.,Guo Zhanhu,Liu Xianhu
Ni-MXene/MF foam is synthesized via an electrostatic assembly and dip-coating process.
The “micro-capacitor” structure of Ni/MXene and the 3D porous structure of MF endow the foam excellent impedance matching and wave absorption performance.
The excellent heat insulation, infrared stealth, and flame-retardant performances are achieved.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Xin-jie Zhao,Ying-jie Sun,Wei-hong Chai,Xiao-jing Wang,Jun Zhao,Yu-pei Li,Fa-tang Li
The spatial photoinduced charge separation and atomic H 2 evolution active site is decisive in the operating efficiency of the photocatalytic hydrogen evolution reaction, yet its rational design and synthesis remain a grand challenge. Here, a series of Hofmann-type coordination polymers (HCPs) with planar anionic block [Ni(CN) 4 ] 2- units were found to effectively enhance the photocatalytic H 2 evolution reaction (PHER) activity of transition metal sulfides (TMSs). This proof-of-concept study investigated four HCPs with planar anionic block [Ni(CN) 4 ] 2- units combined with different central transition metal ion (M 2+ : Ni, Co, Fe, and Mn). All four HCP-modified TMSs exhibited remarkable PHER activity of more than 20.0 mmol g −1 ·h −1 and an apparent quantum yield of ∼20 %, surpassing that of optimized Pt/Zn 0.5 Cd 0.5 S by more than 1.5-fold. Through spectroscopic characterization, Kelvin probe force microscopy (KPFM), and density functional theory (DFT) simulations, we confirmed that the [Ni(CN) 4 ] 2- units potentially bridged with the TMSs via an M-S bond forming an electronic transmission channel, thus eliminating the interface energy barrier. Due to the appropriate band structure, the photogenerated electrons converged to the [Ni(CN) 4 ] 2- units, consequently facilitating the conversion of H + to H 2 . This work demonstrates a rational synthetic route for creating PHER photocatalysts that possess mild synthesis conditions, efficient electronic transmission interfaces, and an active center that can be finely manipulated.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Haoran Yin,Ziyan Lin,Lixia Wang,Yong Huang,Tayirjan Taylor Isimjan,Xiulin Yang
Understanding the oxygen evolution reaction (OER) mechanism is critical for the rational design of high-performance OER electrocatalysts. Theoretically, the lattice oxygen oxidation mechanism (LOM) bypassing the inherent limitations of the traditional adsorbate evolution mechanism through direct interactions between lattice oxygen and oxygen intermediates, thereby lowering the energy barrier of alkaline OER. However, effective lattice oxygen activation remains a significant challenge. Herein, a Ni-based metal-organic framework, Ni N x F 10-x , was employed as a model system to precisely regulate the local microenvironment around the Ni active site via the push-pull effect of organic ligand side groups, thus achieving an efficient LOM pathway. Experimental results demonstrated that this electronic push-pull effect induced lattice strain and morphology variations in Ni N x F 10-x , driven to generate more unsaturated metal sites. The optimized Ni N 3 F 7 /CP exhibited excellent OER activity, achieving a low overpotential of 213 mV at 10 mA cm⁻² and long-term stability in 1.0 M KOH. In-situ electrochemical impedance spectroscopy, in-situ Raman, DEMS and density functional theory calculations combined to illustrate that this ligand functionalization significantly benefited the LOM pathway and OER performance by optimizing intermediate adsorption. This work provides a new perspective for developing advanced OER catalysts.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Shihu Cao,Shugang Zheng,Tianci Liu,Jinhao Liu,Yaqi Yin,Dan Feng,Yunqing Liu,Dayi Qian,Jiangwei Shang,Xiuwen Cheng
Herein, we identified interfacial oxygen vacancy-metal (O V -Ni) dual-sites within a NiFe 2 O 4 /Ni@NC composite as the definitive structural origin for dictating the selective evolution of singlet oxygen ( 1 O 2 ) from peroxymonosulfate (PMS) activation. The catalyst was fabricated via in-situ pyrolysis of a Ni-MOF on NiFe 2 O 4 nanoparticles, and its mechanism was elucidated through a combination of in-situ spectroscopy, kinetic analysis, and density functional theory (DFT) calculations. This 1 O 2 -driven catalysis achieved an 11-fold enhancement in the levofloxacin degradation rate, with the interfacial synergy lowering the non-radical pathway’s energy barrier by 0.037 eV. We conclude that these engineered dual-sites deterministically control reaction selectivity, as proven by the first experimental trapping of a surface-bound 1 O 2 precursor. This work establishes a design blueprint for advanced non-radical catalysts by transforming the approach from serendipitous discovery to predictable, interface-driven design.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Xiaoxue Cheng,Chenchen Li,Qifan Ling,Xinyu Wang,Jiangshan Zhang,Kexin Zhang,Naparat Kasetsomboon,Shuang Wang,Ding Jiang
Vanillonitrile (VN), a valuable pharmaceutical intermediate, is traditionally synthesized through toxic cyanide-based routes. Herein, we report a green, two-step approach for VN synthesis starting from vanillin (VL), a lignin-derived platform molecule. The process integrates solvent-assisted condensation and catalytic pyrolysis, supported by mechanistic insights from density functional theory (DFT). In the first step, vanillin azine (VA) is selectively synthesized in ethanol, with solvent polarity and noncovalent interactions governing reaction kinetics and selectivity. Pyrolysis experiments and quantum chemical calculations reveal that hydrogen-transfer-induced N–N bond cleavage is the dominant route for VA conversion. A heterostructured Ni/NiO@CN catalyst featuring interfacial Ni–N sites was developed to lower activation energy and promote electron redistribution, enhancing VN selectivity to 57.2%. Surface potential and spin polarization analysis further confirmed efficient electron transfer pathways. This work provides a sustainable and efficient route to nitrogen-containing fine chemicals from renewable lignin and offers mechanistic guidance for future biomass-based catalytic designs.
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高影响因子
危险品化学品经营许可证（带存储）