ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Dan Xu,Pengcheng Jian,Weijie Liu,Shizhou Tan,Yiming Yang,Meng Peng,Jiangnan Dai,Changqing Chen,Feng Wu
Modulating the electrical properties of two-dimensional (2D) materials is a fundamental prerequisite for their development to advanced electronic and optoelectronic devices. Substitutional doping has been demonstrated as an effective method for tuning the band structure in monolayer 2D materials. Here, we demonstrate a facile selective-area growth of vanadium-doped molybdenum disulfide (V-doped MoS2) flakes via pre-patterned vanadium-metal-assisted chemical vapor deposition (CVD). Optical microscopy characterization revealed the presence of flake arrays. Transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy were employed to identify the chemical composition and crystalline structure of as-grown flakes. Electrical measurements indicated a light p-type conduction behavior in monolayer V-doped MoS2. Furthermore, the response time of phototransistors based on V-doped MoS2 monolayers exhibited a remarkable capability of 3 ms, representing approximately 3 orders of magnitude faster response than that observed in pure MoS2 phototransistors. This work hereby provides a feasible approach to doping of 2D materials, promising a scalable pathway for the integration of these materials into emerging electronic and optoelectronic devices.
研究领域:
材料科学
·
纳米电子学
·
光电子学
·
二维材料
·
半导体掺杂
✓ 已验证
DOI
高影响因子
Journal of Building Engineering
·
2024
·
IF 6.7
Wenxin Wang,Shikun Chen,Xin Chen,Hao Qian,Yajun Zhang,Yi Liu,Dongming Yan
In this study, Mg–P coatings, prepared on steel alloy substrates, were exposed to temperature from 25 °C to 900 °C. The effects of high temperature exposure and the salt spray test on the anti-corrosion ability of Mg–P coating were investigated in detailed. The results show that the corrosion resistance of coatings decreases continuously from 25 °C to 700 °C, then increases at 900 °C of exposure. However, the corrosion resistance of coatings after 2000h salt spray test was significantly improved. In particular, the corrosion rate of the coating is only one-ninth that of the coating before the salt spray test when the temperature is 900 °C. Furthermore, the microscopic characterization test revealed that a dense oxide layer form between the steel alloy substrate and the coating when temperature exceed 400 °C. Besides the crystal phase transition and oxide layer , the synergistic effect of the secondary reaction of the raw material is the key factor to ensure that the coating still has good corrosion resistance at a high temperature.
研究领域:
材料科学
·
腐蚀工程
·
表面涂层
·
高温材料
✓ 已验证
DOI
高影响因子
Journal of Advanced Research
·
2026
·
IF 13
Yimei Zheng,Boyu Chen,Xuanxiang Huang,Chao Ai,Hui Teng,Lei Chen
Introduction The poor bioavailability of luteolin, a potent flavonoid with antioxidant and anti-inflammatory properties, hinders its therapeutic potential. The primary barriers to its absorption are its low solubility and active efflux by P-glycoprotein (P-gp) in the gastrointestinal tract. Objectives To overcome these absorption barriers, we developed a functional self-microemulsifying drug delivery system (SME) incorporating D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), aiming to simultaneously enhance solubility, inhibit P-gp efflux, and improve the oral bioavailability and therapeutic efficacy of luteolin. Methods A TPGS-based luteolin-SME was prepared via self-assembly and characterized for particle size, stability, release profile, and antioxidant capacity. Cellular absorption mechanisms, permeability, and P-gp inhibition were evaluated using Caco-2 monolayers and molecular docking. Pharmacokinetics and biodistribution were assessed in rats, and therapeutic efficacy was examined in a lipopolysaccharide-induced inflammation model. Results The optimized luteolin-SME formed uniform nanodroplets (<50 nm) with high stability and achieved a 4.3-fold higher cumulative release compared to free luteolin. In Caco-2 cells, the formulation significantly enhanced cellular uptake and permeability, primarily via clathrin- and caveolae-mediated endocytosis, and effectively inhibited P-gp efflux. Pharmacokinetically, luteolin-SME provided a 29-fold increase in relative bioavailability (AUC 247.729 vs. 8.628 mg/L·h) and a 16-fold higher Cmax (27.546 mg/L) over free luteolin. In the lipopolysaccharide-induced inflammation model, luteolin-SME markedly attenuated oxidative stress, reducing the TNF-α, IL-6, and IL-1β levels by approximately 37%, 26%, and 39%, respectively. Conclusion The TPGS-functionalized SME effectively overcame the major absorption barriers of luteolin by integrating nanocarrier-enhanced solubilization with active P-gp inhibition. This dual strategy resulted in unprecedented oral bioavailability enhancement and potent efficacy. Our study establishes a robust and clinically promising delivery platform for luteolin and other poorly soluble, efflux-limited bioactive compounds, offering a practical approach to enhance oral therapy for inflammation-related diseases.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL RESEARCH
·
2021
·
IF 0.782
Xiao-Yun He
A novel and convenient approach to the synthesis of various tertiary phosphine oxides via nickel-catalyzed cross-coupling of (het)aromatic tosylates with secondary phosphine oxides is developed. The reaction employs cheap nickel as the catalyst, 1-(2-(di-tert-butylphosphanyl)phenyl)-4-methoxypiperidine (L3) as the ligand, and pyridine as the base. This reaction produces the corresponding (het)aromatic phosphorus compounds in good to high yields. Moreover, four new tertiary phosphine oxides are reported in this process.
✓ 已验证
DOI
高影响因子
OZONE-SCIENCE & ENGINEERING
·
2021
·
IF 2.562
Xiaojie Fu,Yuanxing Huang,Yaowei Wang,Manli Liang,Ya Yang,Zhihao Jin,Junhao Yang,Shouxun Hu,Liang Li
Catalyst of Fe–Co-layered double hydroxide (LDH) prepared by co-precipitation could effectively improve the degradation of pharmaceutical intermediate – p-toluenesulfonic acid (p-TSA) in the water during ozonation. The experimental results showed that under the condition of pH 7.9, catalyst dosage 0.1 g/L and aqueous ozone concentration 6.2 mg/L, 20 mg/L of p-TSA obtained a TOC removal percentage of 85%. To search for the mechanism of Fe–Co LDH catalytic ozonation and degradation of organic pollutants, hydroxyl radicals were measured with dimethyl sulfoxide (DMSO) and high-performance liquid chromatography (HPLC). The existence of hydroxyl radicals in catalytic ozonation system was also indirectly detected by observing the influence of quenching agents of HCO3− and PO43- on the p-TSA removal. Furthermore, we used electron paramagnetic resonance (EPR) to directly detect the hydroxyl radicals generated during the catalytic ozonation of p-TSA. The experiment results fundamentally revealed the mechanism of catalytic ozonation to degrade organic pollutants.
研究领域:
环境化学
·
水处理技术
·
高级氧化工艺
·
催化
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Xiaotian Zhang,Lu Xu,Yaohui Yang,Chao Li,Zelin Li,Chengqing Ji,Yaru Cui,Huamei Duan,Mujun Long,Dengfu Chen
In the recycling of spent lithium iron phosphate (SLFP), the purity of lithium carbonate, the primary lithium product, is severely constrained by the co-leaching of impurity elements, particularly phosphorus, which has long been overlooked in conventional selective leaching studies. In this study, a selective lithium extraction strategy was developed in the H 2 SO 4 -H 2 O 2 system by simultaneously targeting high Li recovery and suppression of Fe/P dissolution. Guided by E -pH diagrams and response surface methodology, the optimal leaching domain was identified, achieving 99.52% Li extraction while limiting Fe and P dissolution to 0.04% and 1.36%, respectively. Mechanistic investigations reveal that Fe and P are not simply retained in the solid phase as traditionally assumed, but undergo a coupled dissolution-oxidation-reprecipitation process, ultimately forming FePO 4 ·xH 2 O. In contrast, Li leaching follows an interfacial chemical reaction-controlled mechanism ( E a = 56.49 kJ mol −1 ). The decoupling of these pathways is the fundamental origin of high selectivity. Kilogram-scale experiments further confirmed the process stability and enabled the production of battery-grade Li 2 CO 3 with a purity of 99.74%. Furthermore, the migration of residual fluorine-containing species was evaluated, and corresponding strategies for safety management and emission control were proposed. This study reveals the previously overlooked leaching behavior of phosphorus during selective lithium extraction and clarifies the coupled immobilization mechanism of P Fe, providing a new theoretical basis and technical route for the high-selectivity and scalable recycling of spent LiFePO 4 .
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Doudou Li,Xingyu Zhou,Yu Feng,Weiwei He,Lifen Zhang,Zhenping Cheng
The search for innovative and cost-effective flame-retardant polymers is attracting increasing interest in both the academics and industrial community. In this work, flame-retardant polymers with high performance are developed through a monomer-to-polymer strategy. Specifically, biobased N–P synergistic vanillin-based acrylate monomers (MAPDVAs) are designed and synthesized, which are then polymerized via reversible addition–fragmentation chain transfer (RAFT) polymerization to obtain a biobased polymer, namely, PMAPDVA. The obtained PMAPDVA (Mn,GPC = 39100 g/mol) has a high residual carbon content of about 42.0 wt % at 800 °C. The peak heat release rate (PHRR) of PMAPDVA is only 62.0 W/g in a micro calorimeter (MCC) test, confirming excellent flame-retardant efficiency. The PHRR and the total heat release rate (THR) of poly 2-ethylhexyl acrylate (2-EHA) decreased by 33.8% and 42.7%, respectively, when 30.0 mol % MAPDVA was copolymerized. In addition, the copolymer coatings display light transmission more than 80% in the range of 380–780 nm, indicating fine transparency of the copolymer and satisfying compatibility of PMAPDVA. Finally, scanning electron microscopy (SEM) and thermogravimetric analysis infrared (TGA-IR) are applied to explore the flame-retardant mechanism of the resultant polymers. This work provides a key clue for the preparation of flame retardants from natural products.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 35
·48341-48350
·
IF 7.8
Lu Chunyan,Li Mingjin,Li Wen,Deng Haoyun,Jiang Jutao,Wang Pengxi,Yang Biao,Yang Cheng,Li Xiaodong,Hu Ziyang,Zhang Wenjun
Inverted perovskite solar cells (PSCs) often suffer from inefficient electron extraction due to the intrinsically p-type nature of the perovskite surface at the electron transport layer interface. Here, we report a near-surface sulfidation strategy using dibutyl sulfide (DBS) to induce a surface p-to-n transition, which creates a near-surface electric field that facilitates electron extraction and suppresses interfacial recombination. Simultaneously, the formation of Pb-S coordination bonds passivates undercoordinated Pb 2+ defects, reducing nonradiative recombination losses. As a result, DBS-treated inverted PSCs achieve a champion power conversion efficiency of 26.28% with a high open-circuit voltage of 1.191 V. The treated devices also exhibit enhanced thermal stability, retaining 91% of their initial efficiency after more than 700 h of aging at 85 ° C in a N 2 atmosphere. This work presents a simple yet effective surface engineering approach that simultaneously enhances both the efficiency and stability of inverted PSCs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2026
·Vol. 42
·期 30
·22007-22020
·
IF 4.4
Yuan Guokai,Li Qi,Xue Yuyang,Chen Qixiang,Yu Aijia,Xie Aijuan,Luo Shiping
Metal–organic
frameworks (MOFs) have attracted
considerable
research interest as versatile templating agents for synthesizing
transition metal compounds, particularly in electrocatalytic water
splitting applications due to their tunable spatial architectures
and compositional flexibility. This study investigated the in situ
growth of sulfur–phosphorus codoped NiFe-based MOF catalysts
on nickel foam (NF) substrates (FeNi 3 –CPS/NF) and
their bifunctional activities toward hydrogen evolution reaction (HER)
and oxygen evolution reaction (OER) in 1.0 M KOH. Electrochemical
measurements demonstrate that the FeNi 3 –CPS/NF catalyst
exhibits remarkable catalytic performance with low overpotentials
of 136 mV for HER and 75 mV for OER, and low Tafel slopes of 30.97
(HER) and 8.49 mV dec –1 (OER), respectively. The
charge transfer resistance ( R ct ) values
reach 2.328 Ω during HER and 2.149 Ω during OER, highlighting
efficient electron transfer. The electrochemical active surface areas
(ECSA) were determined as 1200 cm 2 for HER and 1425 cm 2 for OER. Stability assessments reveal excellent durability
under both HER and OER conditions, with current retention rates of
86.32% and 80.71% respectively after prolonged electrolysis. These
findings collectively establish FeNi 3 –CPS/NF as
a promising bifunctional electrocatalyst combining high catalytic
activity with exceptional stability for overall water splitting applications.
The innovative integration of heteroatom doping within the MOF architecture
offers new design strategies for advanced energy conversion materials.
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Shengtao Gao,Feng Wei,Xinyao Zhu,Zihao Tai,Jun Qiao
Due to the low cost and steady physicochemical properties of carbon materials, zinc-ion hybrid capacitors (ZICs) composed of carbon cathode and Zn anode have aroused considerable attracts in recent years. However, the unsatisfactory capacity and electrochemical kinetics of carbonaceous cathode hinder its application in ZICs. Herein, a facile self-template thermal treatment method was proposed to prepare N, P co-doped hierarchical porous carbons (NP-HPCs). The electronically modified NP-HPC 3 has an ultrahigh ratio of active N species and abundant micropores, which is favorable for zinc ions adsorption. In addition, the three-dimensional cross-linked network with abundant mesoporous cavities synchronously boosts electrons/ions transfer kinetics. Ex-situ characterization shows that the introduction of N, P heteroatoms is helpful to improve the adsorption of zinc ions. Thanks to these favorable structural characteristics, the NP-HPC 3 displays an exceptional specific capacitance (275.0 F g −1 at 0.1 A g −1 ) and rate capability (182.0 F g −1 at 20 A g −1 ). More significantly, the NP-HPC 3 -based ZIC delivers a prominent energy density of 107.8 Wh kg −1 at a power density of 90.7 W kg −1 , a long cycle life (96.9 % capacitance retention after 10,000 cycles) together with an outstanding anti-self-discharge performance (0.001145 V h −1 @200 h). This study not only affords a feasible and environmental route to construct advanced heteroatom doped carbonaceous materials, but also explores the interrelation between zinc ions storage behavior and structural characteristics of carbon materials.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Solar RRL
·
2023
·Vol. 7
·期 14
·2300259
·
IF 7.9
Lianqing Yu,Xiang Li,Lijie Duan,Yaping Zhang,Haifeng Zhu
Owing to great efficient routes for charge carrier separation and transfer, heterostructure photocatalysts play significant roles in many photocatalytic reactions. Based on the bionic structure, an interesting composite photocatalyst of cadmium sulfide dewdrops on ultrathin strontium titanate branches with oxygen vacancies is successfully constructed by a simple chemical bath deposition method. The oxygen vacancies act as electron traps in the dendritic perovskite SrTiO 3 nanostructure. Meanwhile, the CdS can provide abundant active sites for the hydrogen evolution reaction. The results demonstrate that SrTiO 3 /CdS-5% nanocomposite with oxygen vacancies achieves the highest hydrogen production rate of 4537.9 μmol g −1 h −1 under visible light, which is over 50 times more than that of the single SrTiO 3 with oxygen vacancies (79.36 μmol g −1 h −1 ), pure CdS (81.79 μmol g −1 h −1 ), and more than 750 times that of pure SrTiO 3 (6.132 μmol g −1 h −1 ). Density generalized function theory calculations show that the bandgap values of SrTiO 3 /CdS nanocomposite with oxygen vacancies are narrower than that of the original SrTiO 3 and CdS, in which the electrons flow from CdS to SrTiO 3 , and form an internal electric field at the interface, prolonging the carrier lifetime. Importantly, this work provides a reasonable reference for the preparation of efficient structure-based biomimetic composite photocatalysts.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
Functional Materials Letters
·
2022
·
IF 1.49
Bingxue Sun,Jiangfeng Ni
Sodium-ion batteries (SIBs) have received widespread attention because of their scalability, low cost, and environmental advantages. Whereas, the low capacity and disappointing cycle capability of anode materials are unavoidable challenges, and high-capacity electrodes are accompanied by large volume expansion and cycle decay. Herein, self-supported TiO 2 nanotube array nanocomposites are rationally designed by combining the stability of TiO 2 and the high capacity of P . The unique nanotube structure can effectively limit the expansion of phosphorus so that this anode has excellent reversibility and cycling. It affords a reversible capacity of 0.214 mAh cm − 2 at 0.08 mA cm − 2 , a rate capability of 0.146 mAh cm − 2 at 1.6 mA cm − 2 , and a stable cycling up to 5000 cycles.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）