JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 11
·117502
·
IF 4.386
Rong Yu,Fuxin Liu,Nan He,Lingling Han,Xiuhui Liu
Hydrogen peroxide (H2O2) is closely related to our daily life and health, so it is urgent to accurately detect and analyze its content. Herein, a non-enzymatic H2O2 electrochemical sensor was successfully constructed based on electrodeposited silver nanoparticles (Ag NPs) on carbon nanospheres (CNs). Electrochemical characterization results showed that Ag NPs/CNs/GCE displayed good electrocatalytic performance for H2O2. The diffusion coefficient (D) and heterogeneous rate constant (k0) of hydrogen peroxide were calculated separately. In addition, the sensor had a wide linear range of 4.98 × 10−9 ∼ 7.29 × 10−3 M and a low detection limit of 1.66 × 10−9 M. It also presented excellent anti-interference properties in the presence of various substances. The content of hydrogen peroxide was further detected in real samples of makeup remover, milk and disinfectant with satisfactory recovery rates, confirming its application potential in routine detection.
研究领域:
分析化学
·
生物医学工程
·
材料科学
✓ 已验证
DOI
高影响因子
Advanced Sustainable Systems
·
2025
·
IF 6.1
Dongdong Li,Jiajie Cui,Congcong An,Qingyi Liu,Jun Xu,Xuan Han,Shengchen Yang,Wen-Yong Lai
Conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT: PSS) has garnered extensive research interest as the electrode material for supercapacitors due to its excellent conductivity and high specific capacitance. However, the dense stacking of PEDOT:PSS leads to a low utilization for high areal capacitance, due to the limited amounts of active sites exposure to electrolytes. In this study, Ag particles are first incorporated into PEDOT:PSS ink to produce PEDOT:PSS/Ag composite electrode materials, which are then used to construct paper-based flexible supercapacitors via a scalable screen-printing technique. Benefiting from the improved electrical property and surface morphology, the areal capacitance of the supercapacitor based on PEDOT:PSS/Ag composite electrodes is found to be 3.87 times greater than that of the pure PEDOT:PSS electrode. Moreover, the paper-based supercapacitor also exhibits exceptional flexibility, maintaining over 80% of its initial capacitance even after 9000 bending cycles. These findings indicate that PEDOT:PSS/Ag composite electrodes are promising candidates for high-performance flexible supercapacitors, highlighting their potential to supply continuous power for application in future flexible electronics.
研究领域:
材料科学
·
能源存储
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 24
·11013-11025
·
IF 4.682
Luo Guoqiang,Li Peibo,Hu Jianian,Guo Jingwei,Sun Yi,Shen Qiang
The purpose of this paper was to design an Al–Cu–Ag–C material system to address the deterioration of mechanical properties caused by intermetallic compounds generated during Al–Cu sintering. The in situ pyrolytic C layer was encapsulated on the surface of the raw material particles, which prevented Al–Cu diffusion and reduced the generation of intermetallic compounds. The microstructure of the Al–Cu–Ag–C composites illustrates that several alloy phases of Al 2 Cu, Al 4 Cu 9 , and Ag 2 Al are formed. The addition of Ag significantly improved the mechanical properties of the composite due to the formation of the Ag 2 Al phase and Cu–Ag solution. The tensile strength and compressive strength of Al–52Cu–3Ag–C are increased by 123.9% and 64.9% over Al–52Cu–C, and the strain is also considerably improved. The strength enhancement derived from the Orowan strengthening contributed by Ag 2 Al, and the solid solution strengthening contributed by Ag–Cu solid solution, respectively. The presence of Ag 2 Al also enhances the hardness of the composite.
研究领域:
材料科学
·
力学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Jianbo Yang,Xingxiang Ji,Libin Liu,Yu Xiang,Yaling Zhu
Design and fabrication of compressible electrode for energy storage devices are highly demanded due to their wide applications. Here, compressible graphene/polypyrrole (PPy)/Ag composite electrodes were fabricated by one step hydrothermal treatment of pyrrole (Py) and silver nitrate (AgNO 3 ) in graphene oxide (GO) aqueous solution. The resulting composite electrodes are characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) and indicate that PPy and Ag nanoparticles are absorbed on graphene sheets. The capacitive behavior of the composite is investigated by using cyclic voltammetry , galvanostatic charge/discharge and electrochemical impedance spectroscopy . The electrochemical properties can be controlled by tuning the mass ratio of GO, Py monomer and AgNO 3 . The maximum specific mass capacitance of the electrode is 447 F g −1 . Importantly, the resulting electrode can be compressed both in dried state and in aqueous electrolyte. The assembled supercapacitor can be compressed up to 50% strain and maintains its original capacitance when released. This work indicates that it is possible to build high performance compressive conductors and supercapacitors by using graphene networks coated with conductive polymer and silver nanoparticles .
研究领域:
材料科学
·
能量存储
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
ACS Nano
·
2026
·
IF 16
Xiulin Xie,Gaoyu Liu,Yu Zhang,Yiqing Yang,Wentao Niu,Ouyang Lin,Yangyang Bian,Jin Lu,Shengli Zhang,Aiwei Tang
I–III–VI group semiconductor nanocrystals (NCs) with narrow-bandwidth emission have emerged as promising candidates for display technologies due to their tunable emission wavelength and eco-friendly composition. Herein, Ga-rich Ag–In–Ga–S (AIGS) NCs exhibited a narrow photoluminescence emission with a full width at half maximum (fwhm) of 29 nm, which was derived from In-rich Ag–In–Ga–S NCs with an fwhm of 113 nm via a cation exchange strategy. The evolution process was studied systematically using steady- and transient-state spectroscopic techniques, revealing that the narrow photoluminescence (PL) bandwidth primarily originated from free-to-bound radiative recombination. The result was consistent with first-principles calculations. Furthermore, the electroluminescent devices based on AIGS NCs showed a record narrow electroluminescent bandwidth of less than 30 nm, and the maximum external quantum efficiency (EQE) could reach up to 1.2%.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF WATER AND HEALTH
·
2017
·Vol. 15
·期 3
·341-352
·
IF 1.041
Wu Huiqing,Huang Jing,Liu Yuejun
An anti-fouling hybrid membrane was prepared by incorporating Ag-SiO 2 nanohybrid into a polysulfone (PSf) matrix. The addition of Ag-SiO 2 can significantly improve the hydrophilicity, separation property, anti-fouling ability, and especially anti-bacterial activity of hybrid membranes. The optimum performance of the Ag-SiO 2 /PSf hybrid membrane is achieved when the concentration of Ag-SiO 2 is as low as 0.45 wt%. Compared with PSf membrane and SiO 2 /PSf hybrid membrane, the Ag-SiO 2 /PSf hybrid membrane displays the best overall properties. The excellent performance of the Ag-SiO 2 /PSf hybrid membrane can be attributed to the well-tailored structure and unique property of Ag-SiO 2 nanohybrid, where nanosized Ag (∼5 nm) can densely and uniformly disperse on the surface of silica spheres. The obtained membrane could be a promising material for water treatment.
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 8
·期 9
·2002255
·
IF 6.147
Yan Lei,Longyan Gu,Xiaogang Yang,Yuan Lin,Zhi Zheng
The rigid nature of inorganic semiconductors makes them rarely use in flexible devices till now. For the first time, ductile-metal Ag is used as buffering layer to bond the inorganic semiconductor thin films and polymer substrate forming a sandwich structure, which has outstanding flexible photoelectric character. The ductile thin Ag layer under Ag 2 S thin film acts as electrode and buffering material between the Ag 2 S and polyimide (PI) layers. The strong bonding interaction between Ag 2 S and Ag can reduce the stress force in Ag 2 S thin films that is generated during bending, which enhances its flexibility. The resulted Ag 2 S/Ag/PI film shows excellent electrical performance retentivity. After more than 10 4 cycles bending test, the conductivity of the Ag 2 S/Ag/PI films has almost not changed. The prepared Au/PEDOT:PSS/Ag 2 S/Ag/PI photodetectors are stable in air or N 2 . It can bear a small bending radius as low as 1.5 mm for ≈4000 bending cycles test without drastic performance decay. In addition, the Ag 2 S/Ag based flexible photodetectors show a wide spectral response from ultraviolet to near infrared.
研究领域:
材料科学
·
光电子学
·
柔性电子学
·
纳米技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 119
·97982-97987
·
IF 3.84
Weijin Qian,Mengjie Li,Lihong Chen,Jianghui Zhang,Changkun Dong
The application of carbon nanotubes (CNTs) as a thermo-electrochemical cell (TEC) electrode is still difficult due to their weak contact with the substrate during the electrophoretic deposition (EPD) method. In this study, by doping the suspension of the CNTs with Mg2+ and Ag powder, Ag–MgO–CNT nanocomposites were successfully prepared on a stainless steel (SS) substrate using the EPD method. The products were confirmed using characterization by scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray and X-ray photoelectron spectroscopy. The TEC performance of the Ag–MgO–CNTs nanocomposite electrodes was significantly improved due to their higher conductivity, thermal conductivity and improved adhesion between the composite film and the SS substrate, depending on the concentrations of the Ag powder. The results suggest that constructing Ag–MgO–CNTs nanocomposite electrodes can effectively enhance the performance of CNTs-based TECs, which might be a promising way for energy harvesting using CNTs-based TECs prepared via the EPD technique.
研究领域:
材料科学
·
能量收集
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry Letters
·
2020
·
IF 6.71
Shuo Sun,Tong Yang,Yong Zheng Luo,Jian Gou,Yuli Huang,Chengding Gu,Zhirui Ma,Xu Lian,Sisheng Duan,Andrew T. S. Wee,Min Lai,Jia Lin Zhang,Yuan Ping Feng,Wei Chen
The degree of buckling of two-dimensional (2D) materials can have a dramatic impact on their corresponding electronic structures. Antimonene (β-phase), a new 2D material with air stability and promising electronic properties, has been engineered to adopt flat or two-heights-buckling geometries by employing different supporting substrates for epitaxial growth. However, studies of the antimonene monolayer with a more buckled configuration are still lacking. Here, we report the synthesis of an antimonene monolayer with a three-heights-buckling configuration overlaid on SbAg2 surface alloy-covered Ag(111) by molecular beam epitaxy, in which the underlying surface alloy provides interfacial interactions to modulate the structure of the antimonene monolayer. The atomic structure of the synthesized antimonene has been precisely identified through a combination of low-temperature scanning tunneling microscopy and density functional theory calculations. The successful fabrication of a buckled antimonene monolayer could provide a promising way to modulate the structures of 2D materials for future electronic and optoelectronic applications.
研究领域:
材料科学
·
凝聚态物理
·
纳米技术
·
表面科学
✓ 已验证
DOI
高影响因子
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
·
2026
·Vol. 263
·期 4
·e70212
·
IF 1.7
Huili Yin,Yanping Pan,Wenhao Fan,Qiang Zhang,Shaoping Chen,Jianfeng Fan
Owing to the unique crystal structure and eco-friendliness of the Zintl-phase Mg 3 Sb 2 compound, it has become a research hotspot in the field of thermoelectric materials. Particularly, the key lies in the optimization of its p-type thermoelectric properties. In this work, Ag doping was implemented in the ternary Mg 3 Sb 1.4 Bi 0.6 matrix, which realized the simultaneous improvement of both the electrical and thermal properties in such materials. At 723 K, the maximum power factor of the Mg 2.99 Ag 0.01 Sb 1.4 Bi 0.6 sample reached 6.8 µW cm −1 K −2 , which was approximately three times that of the undoped sample (~2.3 µW cm −1 K −2 at 723 K). In addition, Ag doping introduced extra lattice disorders and point defects, which enhanced the phonon scattering effect and thus led to a significant suppression of lattice thermal conductivity. Specifically, the Mg 2.96 Ag 0.04 Sb 1.4 Bi 0.6 sample achieved a low lattice thermal conductivity of ~0.47 W m −1 K −1 at 723 K. Ultimately, the peak zT value of the Mg 2.99 Ag 0.01 Sb 1.4 Bi 0.6 sample goes up to 0.68 at 723 K, which was three times higher than that of the undoped sample. This study provides an important reference for subsequent research on optimizing the thermoelectric performance of p-type Mg 3 Sb 2 -based materials.
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Lihong Su,Xiaolu Yang,Qin Yang,Jiahui Xu,Leina Dou,Lei Zhao,Ibrahim A. Darwish,Daohong Zhang
Conventional immunochromatography is limited by insufficient sensitivity and high consumption of monoclonal antibodies, restricting its practical application for trace analysis. Herein, to overcome these limitations, we design a signal amplification strategy based on a CeO 2 @Ag nanocomposite with enhanced peroxidase-like activity and colorimetric properties. The hollow CeO 2 nanospheres offer a high surface area for loading AgNPs, which serve as both electron transfer mediators and peroxidase-like activity to enhance catalytic capacity. By leveraging the multivalent interactions between the primary and secondary antibodies, this approach minimizes carbofuran antibody (mAb 1 ) consumption while maximizing the exposure of its active binding sites. This rational design thereby refines the competitive immunoassay and enables a significant sensitivity boost via signal amplification. The developed CeO 2 @Ag-based immunochromatography achieved a detection limit of 0.087 ng/mL for carbofuran. Moreover, Tetramethylbenzidine (TMB)-mediated catalytic mode significantly extended the linear detection range to 0.08–3.0 ng/mL. Validation in cowpea and lettuce matrices gave average recoveries of 80.35%–108.92% with relative standard deviations below 12.89%, demonstrating excellent practical applicability for sensitive and cost-effective carbofuran monitoring.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Boyang Xu,Xuefei Zhou,Yifan Zhang,Yalei Zhang,Qipeng Zhao,Tai-Shung Chung
Photocatalytic membranes have emerged as promising catalytic oxidation materials to mitigate fouling with self-cleaning capacity, yet their visible-light activity and charge recombination remain challenging. In this work, hydrophilic Ag/Ag 3 PO 4 -PDA-n@PES ultrafiltration (UF) membranes were fabricated via polydopamine-assisted surface modification of polyethersulfone (PES) substrates followed by in-situ mineralization of Ag/Ag 3 PO 4 nanoparticles. The membranes were systematically characterized, and the optimized Ag/Ag 3 PO 4 -PDA-5@PES exhibited a water flux of 125 L m −2 h −1 (LMH) and 89.0 % bovine serum albumin (BSA) rejection, outperforming the pristine PES (98 LMH, 66 %). Under visible light, the membrane achieved 87–89 % degradation of organic dyes with a kinetic constant of 0.0254 min −1 for Rhodamine B (RhB), retaining >80 % efficiency after five cycles. In cyclic filtration with RhB, only a 13 % flux decline occurred after three backwashing/self-cleaning cycles, with a flux recovery of 98 %, confirming its strong antifouling and self-cleaning capacity. Moreover, a continuous operation with synthetic urine wastewater achieved 80–95 % chemical oxygen demand (COD) and 90–95 % chroma removal, demonstrating the membrane's practical potential in wastewater treatment.
研究领域:
环境科学
·
材料科学
·
化学工程
·
光催化
·
水处理技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）