ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Fei Wang,Dongzheng Wu,Yichao Zhuang,Jialin Li,Xianzhen Nie,Jing Zeng,Jinbao Zhao
The nature of dendrite-free magnesium (Mg) metal anodes is an important advantage in rechargeable magnesium batteries (RMBs). However, this traditional cognition needs to be reconsidered due to inhomogeneous Mg deposits under extreme electrochemical conditions. Herein, we report a three-dimensional (3D) Cu-based host with magnesiophilic Ag sites (denoted as “Ag@3D Cu mesh”) to regulate Mg deposition behaviors and achieve uniform Mg electrodeposition. Mg deposition/stripping behaviors are obviously improved under the cooperative effect of nanowire structures and Ag sites. The test results indicate that nucleation overpotentials are reduced distinctly and cycling performances are prolonged, suggesting that the general rules of 3D structures and affinity sites improve the durability and reversibility of Mg deposition/stripping. Besides, a unique concave surface structure can induce Mg to deposit into the interior of the interspace, which utilizes Mg more efficiently and leads to improved electrochemical performances with limited Mg content. Furthermore, in situ optical microscopic images show that the Ag@3D Cu mesh can attain a smooth surface, nearly without Mg protrusions, under 8.0 mA cm–2, which prevents premature short circuits. This report is a pioneering work to demonstrate the feasibility of modification of Cu-based current collectors and the necessity of functional current collectors to improve the possibility of practical applications for RMBs.
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高影响因子
JOURNAL OF LUMINESCENCE
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2016
·
IF 2.693
Yanyan Chen,Jigang Min,Qiang Wang,Shenjie Li
Aqueous solution deposition of metal chalcogenide semiconductor thin films is considered a green and low-cost approach. So it is hard to find a general aqueous solution approach to deposit various kinds of high-quality metal sulfide quantum dots thin films . Here, we describe a green and robust aqueous solution approach, and five types of metal sulfide precursor solutions (Cu(CH 3 COO) 2 , AgNO 3 , Zn(CH 3 COO) 2 , Cd(CH 3 COO) 2 ·2H 2 O, Ni(CH 3 COO) 2 ·4H 2 O) can be prepared at room temperature under air atmosphere. By this green route, luminescent Ag-doped Zn x Cd 1− x S semiconductor films have been successfully synthesized via a facile and green method in the open air at 260 °C using precursors. NH 3 ·H 2 O (28–30%) were used as solvent, and 3-mercaptopropionic acid was used as the capping agents. As-prepared quantum dot thin films exhibit a tunable emission covering the whole visible light region. The absolute photoluminescence quantum yields can reach as high as 24.6%, which have a high potential application in luminescent, transparent, and conductive thin films.
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高影响因子
JOURNAL OF RAMAN SPECTROSCOPY
·
2019
·Vol. 50
·期 10
·1468-1476
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IF 2.809
Junhua Tong,Zhixing Xu,Yaoxing Bian,Yutao Niu,Yongyi Zhang,Zhaona Wang
Surface-enhanced Raman scattering (SERS) is a useful detection technique for molecule recognition. However, the relative difficulty in producing low-cost highly active SERS substrates in large quantities hinders their practical implementation. Here, a fast and facile approach using a one-step solution-phase synthesis is proposed to directly achieve highly active fibrous SERS substrates by uniformly and densely growing silver nanoflowers on reduced graphene oxide fibers within several minutes. Attributed to the abundance of nanogaps throughout the silver nanoflower network, the fibrous substrate exhibits superior stability and high sensitivity in the SERS detection of Rhodamine 6G, with a detection limit of 10 −12 M. Importantly, the proposed method is energy efficient and can work well at room temperature and manually stirring conditions based on naturally shed hair and plant fibers. Due to the advantages of high-volume production, the processing cost is greatly reduced to approximately $0.008 for each substrate. This newly designed approach may greatly improve the practical application of SERS detection in environmental monitoring, medicine and food safety, especially in resource-limited environments.
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高影响因子
International Journal of Electrochemical Science
·
2023
·Vol. 12
·期 6
·5511-5520
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IF 1.5
Xingpu Qi,Jianzhong Qian,Tong Chen,Daoli Lu,Bin Chen
With a chemical and eco-friendly in situ reduction technique, an excellent Ag-Pd bimetallic nanoparticle (Ag-Pd)-based hybrid was successfully synthesized in this study. To determine copper(II) ions in water, this work employed differential pulse adsorptive stripping voltammetry (DPAdSV) and preconcentration methods. Furthermore, the sensor feasibility was studied with river and tap water as real specimens. The results revealed the potential of the proposed electrochemical sensor to be applied for the early testing of water quality based on its desirable behavior in Cu(II) determination in real specimens.
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高影响因子
Journal of Materials Chemistry C
·
2018
·Vol. 6
·期 17
·4683-4690
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IF 5.976
Bingyan Zhu,Wenyu Ji,Zongquan Duan,Yang Sheng,Ting Wang,Qilin Yuan,Han Zhang,Xiaosheng Tang,Hanzhuang Zhang
During the last three decades, there has been significant development of quantum dot light emitting diodes (QLEDs) due to their widespread applications. However, common QLEDs depend on cadmium, which is toxic and limits their all-inclusive applications. To address this challenge, herein, we report a highly efficient and low turn-on voltage Cd-free inverted QLEDs with eco-friendly Zn–Ag–In–S quantum dots as the emissive layers. The device performance is closely related to the properties of the hole transport layer (HTL), which are explored by employing different hole transport materials, namely, 4,4′,4′′-tris(carbazol-9-yl) triphenylamine (TCTA) and N,N′-bis(naphthalen-1-yl)-N,N′ bis(phenyl)-benzidine (NPB). Although the energy levels of the lowest unoccupied molecular orbitals (LUMO) of TCTA and NPB are similar, electron leakage from the QDs to NPB is observed, which deteriorates the device performance. An excellent QLED can be achieved if a thick TCTA layer is introduced next to the QDs. Additionally, the QLED with a stepwise HTL consisting of TCTA/NPB presents a slightly higher current efficiency than the TCTA-only device, revealing that the reduction in holes accumulated at the QDs/HTL interface is beneficial for enhancing the device efficiency. Compared to the previously reported Zn–Ag–In–S based QLEDs, our device exhibits a low turn-on voltage of 2.2 V and the highest luminance (over 2000 cd m−2) and efficiency (larger than 2.1 cd A−1).
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高影响因子
RSC Advances
·
2017
·Vol. 7
·期 74
·46760-46766
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IF 3.108
Mengjie Li,Weijun Huang,Weijin Qian,Boyang Liu,Hao Lin,Wei Li,Li Wan,Changkun Dong
Ag–ZnO nanocomposites were prepared on alloy substrates by two simple and inexpensive steps, i.e. synthesis of ZnO nanorod arrays (ZNAs) by a low-temperature hydrothermal method, followed by electrophoretic deposition method to coat ZNAs with Ag nanoparticles (NPs). The sizes and densities of the Ag NPs could be facilely adjusted by changing the deposition time. The field emission (FE) performances of Ag–ZnO emitters were improved greatly by adjusting the sizes and densities of the Ag NPs, and the optimized FE performance of the Ag–ZnO emitter was obtained with the lowest turn-on field of 0.86 V μm−1 and a current density up to 7.96 mA cm−2 at 4.45 V μm−1. More importantly, the Ag–ZnO emitter exhibited excellent current stabilities with 1900 min operation under only 6.5% current fluctuation. These results suggest that the Ag–ZnO composite is a promising cathode material for fabrication of future FE devices.
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PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Mingjun Zou,Guangkai Jin,Xinwei Wang,Yikun Ji,Bin Liu,Shujuan Liu,Qian Ye,Feng Zhou
Hydrogels show great potential for marine antifouling, but their low mechanical strength and limited antifouling effectiveness hinder their broader application. Herein, the 3-sulfopropyl methacrylate potassium (SPMA) polymer brushes layer was grafted onto MXene, followed by in situ reduction to form silver nanoparticles (AgNPs) with an average particle size of about 10 nm. The resulting 0D/2D MXene-SPMA@Ag nanosheets exhibit effective antifouling capabilities, with antibacterial and algal removal rates exceeding 90 %. Meanwhile, composite antifouling hydrogels were developed by incorporating functionalized nanosheets into the hydrogel matrix. The incorporation of MXene-SPMA@Ag significantly enhanced mechanical strength, anti-swelling behavior, and friction reducing properties of the hydrogels. Compared to the blank hydrogel, the mechanical properties of the composite hydrogel were significantly improved, with the tensile strength increasing from 99 KPa to 238 KPa and the strain rising from 517 % to 861 %. In addition, MXene-SPMA@Ag/Gel showed excellent antifouling performance, with an antimicrobial activity approaching 100 % and an algae removal rate exceeding 90 %. These improvements were attributed to the synergistic effect between the MXene-SPMA@Ag nanosheets and the hydrogel.
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高影响因子
MOLECULES
·
2019
·Vol. 25
·期 1
·124
·
IF 3.06
Sufeng Zhang,Yongshe Xu,Dongyan Zhao,Wenqiang Chen,Hao Li,Chen Hou
A facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe2O4@Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe2O4@Ag core and porous ZIF-8 shell. The CuFe2O4nanoparticles (NPs) were first prepared in the presence of CNC and dispersant. Ag NPs were then deposited on the CuFe2O4/CNC composites via an in situ reduction directed by dopamine polymerization (PDA). The CuFe2O4/CNC@Ag@ZIF-8 nanocomposite was characterized by TEM, FTIR, XRD, N2adsorption-desorption isotherms, VSM, and XPS. Catalytic studies showed that the CuFe2O4/CNC@Ag@ZIF-8 catalyst had much higher catalytic activity than CuFe2O4@Ag catalyst with the rate constant of 0.64 min−1. Because of the integration of ZIF-8 with CuFe2O4/CNC@Ag that combines the advantaged of each component, the nanocomposites were demonstrated to have an enhanced catalytic activity in heterogeneous catalysis. Therefore, these results demonstrate a new method for the fabrication of CNC-supported magnetic core-shell catalysts, which display great potential for application in biocatalysis and environmental chemistry.Keywords:CuFe2O4nanoparticles;cellulose nanocrystals;Ag nanoparticles;ZIF-8 catalysis;4-nitrophenol reduction
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Gaoyi Wu,Wei Shi,Moran Liu,Lixin Liang,Tao Wang,Jinyong Zhang,Jing Chen,Yongsheng Liang,Wei Tang,Hui Li
Hydrogels have emerged as promising candidates for flexible sensors due to their softness, biocompatibility, and tunable physicochemical properties. However, achieving synchronous satisfaction of conformality, conductivity, and diverse biological functions in hydrogel sensors remains a challenge. Here, we proposed a multifunctional hydrogel sensor by incorporating silver-loaded polydopamine nanoparticles (Ag@PDA) into a thermally cross-linked methacrylamide chitosan (CSMA) and acrylamide network, namely, Ag@PDA/(CSMA-PAM). The Ag@PDA/(CSMA-PAM) hydrogel showed the capability to respond effectively to both strain and pressure, enabling its independent application as either a strain sensor or a pressure sensor. The sensitivity of the hydrogel can reach 2.13 within the strain range of 65 to 150%, exhibiting a response and recovery time of 550 ms when utilized as a strain sensor. In contrast, its sensitivity was 0.07 kPa–1 during pressures ranging from 0 to 2.15 kPa, with a response and recovery time of 136 ms when employed as a pressure sensor. Additionally, the hydrogel sensor demonstrated high linearity (0.998 for strain and 0.98 for pressure), stable cycling ability (500 cycles), and low detection limit (0.5% for strain and 150 Pa for pressure). Moreover, the Ag@PDA/(CSMA-PAM) hydrogel exhibited good stability and reliability for a variety of practical applications, including the detection of subtle and large deformations, as well as real-time physiological activity monitoring. Further, owing to the bioactive components of chitosan and Ag@PDA present in the hydrogel, the Ag@PDA/(CSMA-PAM) sensor exhibited satisfactory biocompatibility along with excellent antioxidant and antibacterial activities, making it highly promising for applications as wearable sensors in personalized healthcare.
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PubMed
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2025
·
IF 4.2
Hengqian Jin,Shufei Wei,Yunpeng Jiang,Huarong Nie,Xinping Zhang,Aihua He
In this study, snowman-like Janus particles (PDVB/PS@SiO 2 ) were proposed as carriers of Ag nanoparticles (Ag@J) to construct a hierarchical hybrid conductive powders by further admixing with MWCNTs for the development of high-performance microwave-absorbing materials. The Ag@J/MWCNT composite powders have several advantages in microwave absorption, such as the polarization of SiO 2 hemispheres, multiple reflections and scattering of electromagnetic waves in the hollow cavity of PDVB/PS hemispheres, improved conductivity and dielectric loss originating from the dense deposition of Ag nanoparticles and incorporation of MWCNTs. Furthermore, the composite powders allow the interfacial polarization and favorable impedance matching. Notably, the asymmetric hemispheres of the Ag@J particles result in close packing, further reducing the transmission of electromagnetic waves. The Ag@J particles demonstrated a minimum reflection loss (RL min ), indicating their potential application in microwave absorption. When further integrated with MWCNTs, the Ag@J/MWCNT composite powders, containing 36.4 wt% of Ag@J, exhibited strong absorption (−27 dB), wide absorption bandwidth (16.5 − 18 GHz), and a low thickness (5.5 mm). The Janus particles reported in this study show high potential applications in microwave-absorbing powder materials.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Zhirou Xu,Zhengtong Wu,Xuyang Sun
An ultrasensitive fluorescence immunosensor based on silver nanoparticles@ nitrogen-doped carbon quantum dots (Ag NPs@N/CQDs) and exploiting the quenching effect of gold nanoparticles (Au NPs) was fabricated for squamous cell carcinoma antigen (SCCA) detection. Ag NPs@N/CQDs were immobilized on the surface of an indium tin oxide (ITO) electrode and then coupled with the primary antibody of SCCA. The primary antibody captured SCCA on the ITO electrode, forming an immune complex with the secondary antibody labeled with gold nanoparticles, thereby constructing a sandwich-structured fluorescent sensor. Using the prepared sensor, a new method for detecting trace amounts of SCCA in human serum was established. Owing to the effective quenching of fluorescence intensity of Ag NPs@N/CQDs by Au NPs, combined with the presence of a sandwich immune structure, the sensor exhibits high sensitivity and selectivity. The method demonstrates a linear range of 2 − 4000 fg mL −1 and a detection limit of 0.87 fg mL −1 . The the recovery rate for real serum samples was between 94.45 % to 103.43 %.
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高影响因子
Journal of Building Engineering
·
2025
·
IF 7.4
Wencheng Wang,Nanxi Xie,Zhenkun Lin,Yong Zhang,Yan Chen,Zhongmin Liu
The application of corrosion inhibitors provides an efficient approach for mitigating steel rebar corrosion. However, the premature failure of corrosion inhibitors in concrete remains a pending issue. The adoption of microencapsulated inhibitors shows significant promise in addressing this concern. This study proposes a novel chloride ion-triggered microcapsule designed for the anti-corrosion protection of reinforcement. The microcapsules were synthesized using calcium carbonate (CaCO 3 ) particles as a template and sodium monofluorophosphate (MFP) as the encapsulated inhibitory core. The exterior of the CaCO 3 particles was coated with a silver alginate (Alg-Ag) layer, which confers the chloride ion-triggered release mechanism. The activation of microcapsules occurs through a chemical reaction between silver ions in the Alg-Ag layer and chloride ions from the environment, resulting in the formation of silver chloride and the subsequent disintegration of the microcapsule. The MFP inhibitor is released as a consequence. The fabricated microcapsules were characterized in terms of morphology and chemical composition. The inhibitory performance of the microcapsules was analyzed by electrochemical methods. The use of the CaCO 3 template was found to be effective in producing a porous matrix suitable for the loading of MFP. The microcapsules exhibit a well-defined spherical morphology with a distinct core-shell structure. Both FTIR and TG analysis confirmed the successful entrapment of MFP within the core of microcapsules. Electrochemical corrosion tests demonstrated that the microcapsules effectively retarded the corrosion process of the reinforcement, with the corrosion inhibition efficiency increasing from 59.1 % at 24 h to 63.8 % at 72 h, indicative of a controlled and progressive release of the inhibitor from the microcapsules.
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