Small
·
2025
·
IF 12.1
Haoquan Wang,Weiqi Liu,Shiyong Xu,Haishen Jiang,Hong Wang,Lang Xu
Earth-abundant transition-metal-based single-atom catalysts and nanoparticulate catalysts exhibit relatively high performance for the electrocatalytic CO 2 reduction reaction (eCO 2 RR). However, the localized orbital structures of active sites of single-atom catalysts make it difficult to effectively couple key intermediates, thereby limiting their catalytic performance. Nanoparticulate catalysts are prone to aggregation during the eCO 2 RR, leading to an unwanted hydrogen evolution reaction. In response to these problems, a porous carbon catalyst with Ni─N─P ternary co-doping through a two-step pyrolysis process is prepared. Ni nanoparticles (NPs) are encapsulated in the carbon support and atomically dispersed Ni single atoms (SAs) are anchored to the carbon support surface. The internal Ni─NPs provide electrons for the surface Ni─SAs, thereby helping enhance the electron-transfer efficiency. The doping element P not only tailors the sizes of Ni─NPs, suppressing their hydrogen evolution activity but also forms the asymmetric NiN 3 P─SA active sites, enhancing the coupling strength between the catalyst and adsorbed intermediates. Given the unique structural features, this porous Ni─N─P ternary co-doped coal-based catalyst achieves increased CO selectivity (95%), current density (227.4 mA cm −2 ) and stability (120 h).
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高影响因子
POLYMER
·
2025
·
IF 4.5
Huiling Huang,Shengqi Cui,Xiaoqing Song,Zhonglin Luo,Biaobing Wang
It is still a great challenge to achieve flame retardant epoxy resin (EP) without sacrificing its transparency and mechanical properties. In the present work, A P/N/S containing sulfonamide compound (DPPBSA) was synthesized and adopted to improve the fire safety of transparent epoxy resin. With the incorporation of 5 wt% DPPBSA, the EP composite presented UL-94 V-0 rating and 35.4% of LOI value, its peak of heat release rate and total heat release were also reduced by 51.0% and 40.8% as compared with the pure EP, respectively. The improved flame retardancy was attributed to the comprehensive flame retardant effect of the P, N, and S elements. In the condensed phase, much continuous and denser char layers with greater graphitization degree were formed during the combustion. In the gas phase, the pyrolysis of the DPPBSA released dilution gases and P-containing free radical scavengers. Moreover, the EP composite containing 5 wt% DPPBSA displayed almost comparable tensile strength and transparency with the pure EP.
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高影响因子
LANGMUIR
·
2026
·
IF 3.9
Jie Wan,Shouji Huang,Xiaowu Li,Guixiang Liu,Liwen Yang,Guobao Xu
MnO is regarded as a highly promising anode material for lithium-ion batteries because of its high theoretical specific capacity and abundant resources. Nevertheless, its intrinsic low electrical conductivity and significant volume expansion during cycling lead to poor rate capability and cycling performance, hindering its practical applications. Herein, N,P-co-doped carbon/MnO composite was designed and synthesized using expired milk powder as the nitrogen and phosphorus-codoped carbon source and manganese acetate tetrahydrate as the manganese source by freeze-drying and annealing strategies. In this composite, MnO nanoparticles (average size of 60 nm) are uniformly embedded within a three-dimensional interconnected N,P-co-doped foam-like carbon framework. The 3D carbon skeleton has a reversible wrinkling deformation, effectively mitigating the volume expansion of MnO during charge/discharge cycles and preventing particle aggregation. Additionally, N-doping introduces abundant surface active sites to enhance Li+ adsorption and improves electronic conductivity for efficient charge transfer, while P-doping generates defects in the carbon matrix, accelerating the kinetics of Li+. Therefore, the synergy between highly dispersed MnO nanoparticles and N,P-co-doped carbon matrices endows exceptional electrochemical performance, including high reversible capacity of 966 mAh g–1 at 0.2 A g–1 with 190 cycles, superior rate capability of 318 mAh g–1 at 4.0 A g–1, and long cycle performance (retaining 526 mAh g–1 at 1.0 A g–1 after 600 cycles). Furthermore, Li full cell assembled with LiFePO4 as the cathode and this composite as the anode also presents outstanding cycling stability, maintaining a capacity of 111 mAh g–1 after 250 cycles at 0.1 A g–1.
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高影响因子
Advanced Science
·
2026
·
IF 14.1
Jie Lin,Haoqi Pan,Ke Wu,Junjie Nan,Jinyao Dai,Yushun Chang,Hao Shen,Qingxuan Ye,Haowen Lu,Yuxuan Shen,Boqiang Liu,Ming Wu,Jicheng Yu,Xiujun Cai,Dong Cen
Recurrence and metastasis are the primary causes of mortality in hepatocellular carcinoma (HCC), primarily driven by an immunosuppressive tumor microenvironment. This study developed a multifunctional flexible patch (MnO 2 -P-ICG NFs) based on electrospun SiO 2 gel fibers whose surface is modified with a layer of “nest-like” MnO 2 . The patch enables the co-delivery of indocyanine green (ICG) and pachymaran directly to the tumor site via a laparoscopic system. Under near-infrared light irradiation, ICG serves as a photosensitizer for photodynamic therapy (PDT), effectively ablating tumors and inducing immunogenic cell death (ICD), thereby activating antitumor immunity. Meanwhile, pachymaran, with its immunomodulatory effects, preferential activates natural killer (NK) cells to exert antitumor effects. Additionally, PDT further enhances this immune response by activating the cGAS-STING pathway. In mouse models, implantation of the patch significantly inhibited primary liver tumor progression and ascites formation. In a malignant liver tumor model, MnO 2 -P-ICG NFs prevented local recurrence in 80% of treated mice. Notably, both the depletion of NK cells and the blockade of the cGAS-STING pathway compromised the therapeutic efficacy of MnO 2 -P-ICG NFs. Clinically, tumors with higher NK cell infiltration were associated with improved patient outcomes. In conclusion, this versatile patch provides a promising therapeutic strategy for patients with advanced HCC.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Hongxu Su,Shijie Liu,Sicheng Geng,Xu Xu,Xiao Wang,Qiong Gao,Mingyi Zhang,Xinzhi Ma,Lin Li
Electronic modulation in quantum-size catalysts plays a critical yet underexplored role in governing the hydrogen evolution reaction (HER) in anion-exchange membrane water electrolyzers (AEMWEs). Here, cobalt nanoparticles with tunable diameters (5–15 nm) encapsulated in nitrogen-doped carbon nanotubes (Co@NCNTs) were engineered to elucidate how size-dependent orbital evolution dictates HER activity in alkaline media. We found that a smaller particle diameter results in a better charge transfer capability. Besides, the in-situ Raman spectroscopy shows that Co@NCNTs with an optimized diameter preserve a stable Co–N–C vibration at 690 cm −1 throughout HER, while transiently forming surface C–OH species—key intermediates that promote water dissociation. Inverse and ultraviolet photoelectron spectroscopy (IPES/UPS) further reveal that the quantum-size-effect splits the d -band and gives rise to a stronger Co 3 d –O 2 p hybridization. This enhanced hybridization facilitates electronic delocalization across Co–N–C/O interfaces, enabling dynamic charge transfer that favors the formation and subsequent reduction of C–OH intermediates during HER. As a result, the optimized Co@NCNTs catalyst achieves an overpotential of only 33 mV at 10 mA cm −2 and delivers 550 h operational stability in a full AEMWE. These findings provide direct experimental evidence that quantum-size-tailored orbital coupling governs interfacial OH/H 2 , thereby linking spectroscopic insight with catalytic function and establishing a rational design principle for high-performance non-noble-metal catalysts.
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高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Hongyuan Zhao,Mengyuan Zhao,Yuyang Zhang,Yaling Bi,Xuchun Wang,Qiwen Ran,Canping Pan,Zirong Li
A novel one-pot ultrasonic-assisted method was developed to fabricate Super P carbon black (SPCB)-bridged conductive networks comprising halloysite nanotubes (Hal) and whisker carbon nanotubes (WCN). This WCN/SPCB/Hal nanocomposite was engineered into a sensing platform on glassy carbon electrode (GCE) for diuron (DU) detection. In this architecture, the non-entangled WCN backbone offered high electrolyte adsorption capacity, facilitating the rapid ion transport. Hal provided high-affinity sites to preconcentrate DU at the interface, while SPCB bridged the conductive pathways between WCN and Hal. The resulting WCN/SPCB/Hal/GCE sensor demonstrated good electrochemical performance for DU detection with detection limit of 29.45 nM and sensitivity of 1.6121 μA/μM (linear range: 0.1–20 μM). It also demonstrated good reproducibility, repeatability, and anti-interference capability. The practical application of WCN/SPCB/Hal/GCE in juice samples yielded favorable recoveries of 95.18–102.70% and low relative standard deviations ranging from 2.30% to 4.30%, confirming its potential for rapid DU analysis in fruit-based matrices.
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高影响因子
International Journal of Nanomedicine
·
2021
·
IF 6.4
Shuai Li,Shuping Yang,Chong Liu,Jintong He,Tian Li,Changhui Fu,Xianwei Meng,Haibo Shao
Purpose P-glycoprotein (P-gp), which is highly expressed in liver cancer cells, is one of the obstacles for the treatment of cancer. In this study, we have prepared and characterized a kind of novel ICG&Cur@MoS2 (ICG and Cur represent indocyanine green and curcumin, respectively) nanoplatform, which can achieve photothermal-photodynamic therapy and inhibit the P-gp effectively and safely.Methods In this work, plenty of studies including drug release, acute toxicity, Western blot, real-time PCR, cell viability, therapeutic experiment in vivo, immunofluorescence and so on were conducted to test the antitumor potential of ICG&Cur@MoS2 and the inhibitory effect of curcumin on P-gp.Results The ICG&Cur@MoS2 NPs exhibit an excellent photothermal effect and relatively low toxicity. Cell viability in the ICG&Cur@MoS2 + NIR group was significantly lower than that in ICG@MoS2 + NIR group (75.3% vs 81.2%, 59.0% vs 64.4%, 20.3% vs 27.5%, and 15.4% vs 22.3%) at the concentration of ICG at 0.5, 5, 25, 50 μg/mL (P<0.05 at each concentration). Western blot, Q-PCR, and immunofluorescence assay indicate ICG&Cur@MoS2 NPs can inhibit the P-gp effectively and safely. In vivo, the tumors in the ICG@MoS2 + NIR group are significantly smaller than those in the MoS2 + NIR group (95.0 vs 420.9 mm3, p<0.05).Conclusion In conclusion, we have successfully synthesized ICG&Cur@MoS2 nanoparticles which can not only achieve PTT-PDT but also inhibit P-gp effectively. Our findings indicate that the PTT-PDT exhibits great potential in the treatment of hepatocellular carcinoma. Meanwhile, ICG&Cur@MoS2 can effectively inhibit the expression of P-gp, which will enhance the PDT effect.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Ming Zhou,Zhihui Meng,Chenyiting Li,Xiao Guo,Ronghua Yue,Yuxiang Liu,Jianhong Zhou
Polymer microspheres are widely used in petroleum, electronics, biomedicine, and other industrial fields. This article aims to overcome the problems of poor thermal stability and insufficient mechanical strength of conventional polymer microspheres in high-temperature and high-salinity reservoirs. A composite nanosphere with controllable size and excellent temperature and salt resistance was synthesized by introducing modified nano-SiO 2 to construct an organic-inorganic composite system. The composite nanosphere is crucial for the effectiveness of profile control, water plugging, and oil displacement under harsh reservoir conditions. In this study, amphoteric SiO 2 /P(AM-AMPS-DMDAAC) composite microsphere with small size and regular shape were successfully prepared by reverse phase microemulsion polymerization. A mixed solution of acrylamide (AM), 2-acrylamide-2-methylpropanesulfonic acid (AMPS), diallyldimethylammonium chloride (DMDAAC), KH-570 modified nano-SiO 2 , and methylenebisacrylamide (MBA) was used as the aqueous phase, with Span-80 and Tween-80 as composite emulsifiers. The microsphere exhibits excellent comprehensive physicochemical properties, with a controllable median particle size of approximately 30 nm. Its thermal decomposition temperature increases from 201 °C to 241 °C, and has good viscoelasticity and pseudoplastic characteristics. These properties enable it to effectively cope with harsh reservoir conditions such as high temperature and low permeability. Through oil displacement experiments, the microspheres achieved an average plugging rate of 85.9 % in low-permeability cores and increased the oil recovery by 16.79 %. These indicate that the composite microspheres, as an efficient profile control and water plugging agent, have broad application prospects for enhanced oil recovery in low-permeability reservoirs.
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高影响因子
Materials Today Physics
·
2022
·
IF 11.021
Jun-Liang Chen,Yuntiao Liao,Qi Zhou,Jisheng Liang,Lei Miao,Yu Zhu,Shixue Wang,Wei He,Hirotaka Nishiate,Chul-Ho Lee,Masayuki Murata,Huajun Lai,Zhixia Li
The thermoelectric (TE) modules have been extensively studied, which have the features of recovery of waste heat energy into electricity. At present, many TE researches focus on the materials and modules of medium and high-temperature regions and hardly report on shallow cryogenic TE modules (173–300 K) aiming for the utilization of cold energy of liquefied natural gas (LNG). In this work, the TE arms of shallow cryogenic modules are composed of p-type MgAgSb-based materials synthesized by ordinary ball milling and n-type Bi 85 Sb 15 synthesized by melting. By optimizing the raw material ratio of MgAgSb materials and the SPS pressure, the average ZT of MgAgSb-based material was increased from 0.196 to 0.482 at the temperature range of 173–300 K. Therefore, the maximum simulation conversion efficiency of the module by the optimization of the module structure and materials can achieve 1.95% at the temperature range of 200–300 K, which is 144% higher than that of the non-optimized module. Meanwhile, the maximum measured conversion efficiency of the corresponding manufacturing module reaches 1.76%, which is 2.63 times higher than that of the non-optimized manufacturing module. This work provides a reference for improving module conversion efficiency by optimizing materials and module structure in cryogenic environment.
研究领域:
热电材料
·
能源材料
·
低温能量收集
·
材料科学
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高影响因子
Materials
·
2023
·Vol. 16
·期 3
·960
·
IF 3.4
Zhangjing Chen,Xueteng Zhu,Jinyan Xiong,Zhipan Wen,Gang Cheng
Photocatalytic CO2reduction is a promising technology for reaching the aim of “carbon peaking and carbon neutrality”, and it is crucial to design efficient photocatalysts with a rational surface and interface tailoring. Considering that amine modification on the surface of the photocatalyst could offer a favorable impact on the adsorption and activation of CO2, in this work, amine-modified brookite TiO2nanorods (NH2-B-TiO2) coupled with CuxS (NH2-B-TiO2-CuxS) were effectively fabricated via a facile refluxing method. The formation of a p–n junction at the interface between the NH2-B-TiO2and the CuxS could facilitate the separation and transfer of photogenerated carriers. Consequently, under light irradiation for 4 h, when the CuxS content is 16%, the maximum performance for conversion of CO2to CH4reaches at a rate of 3.34 μmol g−1h−1in the NH2-B-TiO2-CuxS composite, which is approximately 4 times greater than that of pure NH2-B-TiO2. It is hoped that this work could deliver an approach to construct an amine-enriched p–n junction for efficient CO2photoreduction.
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Catalysts
·
2022
·Vol. 12
·期 12
·1583
·
IF 4.501
Ximiao Zhu,Fan Yang,Jinhua Liu,Guangying Zhou,Dongdong Chen,Zhang Liu,Jianzhang Fang
A novel phosphorus and oxygen co-doped graphitic carbon nitride (sheetP-O-CNSSA) photocatalyst was successfully synthesized and applied for H2evolution under visible light. In the synthesis process ofsheetP-O-CNSSA, the supramolecular complex was developed by the self-assembly and copolymerization reaction among melamine, cyanuric acid (CA) and trithiocyanuric acid (TCA) to act as g-C3N4precursors, while (NH4)2HPO4was applied as P and O precursors for element doping. The chemical structures, morphologies, and optical properties of thesheetP-O-CNSSAwere characterized by a series of measurements, i.e., XRD, FT-IR, SEM, TEM, UV-vis DRS, and PL. The results suggested that the introduction of P and O elements could enhance the separation and migration efficiency of photogenerated electrons and holes in the energy band of g-C3N4. The photocatalytic tests over Erythrosin B (EB) sensitizedsheetP-O-CNSSAindicated that the hydrogen evolution was greatly enhanced compared with other catalysts and non-sensitizedsheetP-O-CNSSAunder visible light irradiation. Finally, a possible dye-sensitized photocatalysis mechanism was also proposed on the basis of the as-obtained results.Keywords:P-O-co-doped g-C3N4;self-assembly;dye sensitization;hydrogen evolution
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高影响因子
MOLECULES
·
2022
·Vol. 27
·期 22
·7962
·
IF 4.927
Shuhan Chen,Wei Wen,Xue Zhao,Zelang Zhang,Weishuang Li,Yaoyao Zhang,Bojie Li,Lei Zhu
Here, we describe the preparation of copper nanoparticles that are stabilized on a chitosan composite film (CP@Cu). This material could catalyze the 1,6-hydroboration reactions ofp-quinone methides with B2pin2as a boron source under mild conditions. This reaction exhibited very good functional group compatibility, and the organoboron compounds that were formed could easily be converted into corresponding hydroxyl products with good to excellent yields. This newly developed methodology provides an efficient and sequential pathway for the synthesis ofgem-disubstituted methanols.Keywords:copper nanoparticles;chitosan composite film;hydroboration reactions;p-quinone methides;organoboron compounds
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高影响因子
危险品化学品经营许可证（带存储）