Micro & Nano Letters
·
2015
·Vol. 10
·期 12
·689-692
·
IF 0.853
Jun Zhu,Xiufang Xu,Maomao Yao,Yiqun Zheng,Shifeng Hou
A facile approach to producing silver (Ag) microspheres with a porous structure via a one-pot synthesis is described. The success of this work relies on the use of Cu 2+ to mediate the reduction of silver chloride by oleylamine. The type of additives, amount of copper(II) chloride, type of Ag precursor and reaction temperature were systematically investigated to reveal their roles in the formation of the unique porous structure. The method described provides a convenient route for fabricating porous Ag micro/nanocrystals and could be potentially extended to similar synthesis of other noble metals.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2016
·
IF 2.478
Shibin Sun,Xinxin Zhai,Danxia Gu,Xueting Chang,Xiong Hu,Tao Liu,Lihua Dong,Yansheng Yin
A novel hybrid nanocomposite composed of AgCl nanoparticles and W 18 O 49 nanorods was fabricated through a facile, clean, efficient deposition route. The AgCl–W 18 O 49 nanocomposite has been found to exhibit excellent antibacterial activity, which may arise from the high-density loading of the AgCl nanoparticles on the W 18 O 49 nanorods and the strongly-coupled interaction between the two components. Under light irradiation, partially photoreduction of the AgCl nanoparticles could convert the AgCl–W 18 O 49 nanocomposite to the plasmonic Ag–AgCl–W 18 O 49 nanophotocatalyst with enhanced antibacterial activity. The AgCl–W 18 O 49 nanocomposite is promising candidate for potential application in the field of marine antifouling coatings.
研究领域:
材料科学
·
生物学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2021
·
IF 8.067
Ximeng Dong,Wenlin Cui,Wei-Di Liu,Shuqi Zheng,Lei Gao,Luo Yue,Yue Wu,Boyi Wang,Zipei Zhang,Liqiang Chen,Zhi-Gang Chen
As an eco-friendly thermoelectric material, SnTe has attracted extensive attention. In this study, we use a stepwise strategy to enhance the thermoelectric performance of SnTe. Firstly, AgCl is doped into SnTe to realize band convergence and enlarge the band gap of AgCl-doped SnTe. AgCl-doping also induces dense point defects , strengthens the phonon scattering, and reduces the lattice thermal conductivity . Secondly, Sb is alloyed into AgCl-doped SnTe to further optimize the carrier concentration and simultaneously reduce the lattice thermal conductivity , leading to improved thermoelectric dimensionless figure of merit, ZT . Finally, (Sn 0.81 Sb 0.19 Te) 0.93 (AgCl) 0.07 has approached the ZT value as high as ∼0.87 at 773 K, which is 272 % higher than that of pristine SnTe. This study indicates that stepwise AgCl-doping and Sb-alloying can significantly improve thermoelectric performance of SnTe due to synergistic band engineering, carrier concentration optimization and defect engineering.
研究领域:
材料科学
·
热电学
✓ 已验证
DOI
高影响因子
Energy Technology
·
2019
·Vol. 7
·期 9
·1900454
·
IF 3.163
Xue Li,Yujie Zhang,Jingwei Shen,Shun-an Cao,Ting Li,Fei Xu
Rechargeable Mg batteries are attractive candidates for large-scale energy storage batteries with high safety due to the low-cost and non-dendritic metallic Mg anode. However, exploring high-performance cathode materials is blocking their development. Herein, a high-rate rechargeable Mg battery is established with a AgCl cathode, delivering a high reversible capacity of 70.3 mAh g −1 at 100 mA g −1 , an outstanding rate capability of 32.6 mAh g −1 at 1000 mA g −1 , and a superior long-term cyclability over 500 cycles. Further investigation of the mechanism demonstrates that a conversion reaction takes place between AgCl and metallic Ag 0 for the cathode. The solid-state Mg 2+ diffusion coefficient is as high as 8.1 × 10 −11 cm 2 s −1 , which would be the reason for the high rate capability. The current study reveals significant insights to select promising Mg-storage conversion cathodes by a combination of soft anions and soft transition-metal cations.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF CLUSTER SCIENCE
·
2021
·Vol. 33
·期 2
·503-508
·
IF 3.061
Tong Hua,Liu Wei
A highly stable three-dimensional (3D) silver chloride cluster based coordination polymer (CP) with diphosphines ligand with the formula of [Ag 4 Cl 4 ( L ) 2 ] n ( 1 ) ( L = 1,3-bis(diphenylphosphino)propane, bdpp) has been prepared at room temperature. 1 was examined for the removal of Rhodamine B in aqueous solution, exhibiting potential for the removal of contaminants from wastewater.
研究领域:
材料化学
·
环境科学
✓ 已验证
DOI
高影响因子
CATALYSIS TODAY
·
2018
·
IF 4.667
Ganeshraja Ayyakannu Sundaram,Suresh Maniarsu,Reddy P. Vijendar,Ganapathy Veerappan,Vaithinathan Karthikeyan,Kiyoshi Nomura,Junhu Wang
Controlled silver chloride (0.01–0.50 mol%) and tin co-doped micro-spherical titania (AgCl@Sn-TiO 2 ) with enhanced visible range absorption is prepared through hydrothermal synthesis. Multi-element doped rutile TiO 2 nanocrystalline electron transporting layer (ETL) in perovskite solar cell (PSC) is reported for the first time, which uplifts the photovoltaic performance comparing with undoped TiO 2 electrodes. Theoretical DFT studies, investigating the change in electronic density of states with respect to the doping are performed. An optimum efficiency of 10.4% was achieved for 0.01% doped AgCl@Sn-TiO 2 , which provided highest efficiency with higher stability over 650 h comparing to undoped TiO 2 (10.0%) ETL based PSC prepared under the same ambient conditions. This report proves that, the AgCl@Sn-TiO 2 is one of the efficient materials having good potential for application in photoenergy conversion devices and may provide new insight into the design of advanced perovskite solar cells with titania based electron transport materials.
研究领域:
材料科学
·
能源科学
·
光电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Wanting Gui,Lu Yao,Xunsheng Zhou,Cai Lin Wang
X-ray scintillators play a crucial role in medical imaging, security applications, and non-destructive testing. However, most scintillators currently struggle to simultaneously fulfill the criteria of environmental sustainability, cost-effectiveness, high light yield, rapid decay times, excellent stability, and suitability for large-area devices. In this paper, we present a perovskite scintillator that encompasses all of these desired features by a defect modulation strategy. Different concentrations of Li + have been doped into the Rb 2 AgCl 3 by the anti-solvent method. The photoluminescence and radioluminescence intensity have been significantly increased. At the optimal doping concentration, the fluorescence quantum yield of the sample was as high as 88.7 %, the photoluminescence decay time was only 4.60 ns, which is faster than that of most scintillators; The experiments show that the introduction of Li + reduces the defects in the matrix and enhances emission intensity and decay rate. A large-area plastic composite scintillator film with Li + doped Rb 2 AgCl 3 scintillator achieved a spatial resolution of 12 lp/mm for X-ray imaging. Our study shows that defect engineering can effectively improve the performance of inorganic halide perovskite scintillator materials.
研究领域:
材料科学
·
医学影像
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Yan Zhang,Wenqi Zhang,Lin Wang,Feng Wang,Haifeng Yang
We reported a simple and fast method to prepare a composite material of polydopamine (PDA) adlayer covered cubic AgCl core, which was inlaid with Ag nanoparticles (NPs), shortly named as AgCl/PDA/AgNPs. The resultant AgCl/PDA/AgNPs could be employed as surface-enhanced Raman scattering (SERS) substrate for in-situ detection and the SERS activity could be further greatly improved due to the production of more AgNPs upon laser irradiation. With 4-mercaptopyridine (4-Mpy) as the probe molecule, the enhancement factor could reach 10 7 . Additionally, such SERS substrate shows good reproducibility with relative standard deviation of 7.32% and long term stability (after storage for 100 days under ambient condition, SERS intensity decay is less than 25%). In-situ elevating SERS activity of AgCl/PDA/AgNPs induced by laser may be beneficial to sensitive analysis in practical fields.
研究领域:
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Qing Li,Qian Mao,Min Li,Shengjie Zhang,Gaohong He,Wenjun Zhang
Radioactive iodine waste from nuclear plant became the severe environmental problem and led to the public health concern. The cross-linked chitosan adsorbed iodide anions through the electrical attraction, yet performing limited-efficiently. Targeting as the better adsorption, the modified chitosan sorbent as AgCl@CM (silver chloride entrapped in the cross-linked chitosan microspheres) for iodine adsorption was proposed and implemented by chemisorption from AgCl and physisorption from chitosan via the improved emulsion method (emulsions mixing-collision and polymerization). With the broad application from pH 2 to pH 10, the spherical AgCl@CM (from 0.20 g silver nitrate) performed the I 127 anions (instead of radioactive iodine) adsorption efficiency of higher than 90 % in 20 min, with the maximum adsorption capacity of 1.5267 mmol/g, well-fitting with the pseudo-first-order model and Sips isothermal model. AgCl@CM also performed I 127 adsorption with the significant selectivity relative to Cl − . The micro-spherical AgCl@CM sorbents were therefore prospective-effectively for iodine waste water treatment.
研究领域:
环境科学
·
材料科学
·
核废物处理
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 40
·22871-22877
·
IF 12.732
Yanqiu Wu,Muzaffar Ahmad Boda,Zhiguo Yi
Electrosynthesis of chemicals in parallel with hydrogen production exhibits distinct advantages: energy saving and generation of two value-added products. In this work, we first design an asymmetric neutral–acidic electrolytic cell by coupling the silver oxidation reaction (AOR) in a neutral anode chamber with the hydrogen evolution reaction (HER) in an acid cathode chamber. When the anode electrolyte contains a certain amount of chloride ions, AgCl particles can be steadily synthesized close to, but not in contact with, the silver electrode at a fixed voltage. This electrolytic cell requires a voltage of only 1.1 V to drive 10 mA cm−2. In order to simplify the system and reduce the cost, a symmetric acid membrane-free electrolytic cell is designed; this cell requires a voltage of only 0.95 V to drive 10 mA cm−2 and 1.37 V to drive 250 mA cm−2 when a silver rod and graphite rod are used as the anode and cathode, respectively. Besides high purity H2 generation at the cathode, the anode product is pure AgCl and its size can be controlled by changing the voltage. The Faraday efficiency is close to 95% for both H2 and AgCl generation.
研究领域:
化学工程
·
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2018
·
IF 6.578
Songbai Liu,Zhan Wang,Min Ban,Peng Song,Xufeng Song,Bushra Khan
In this work, we presented a facile and novel strategy, chelation–assisted in situ self-assembly, to prepare the loose polyacrylonitrile (PAN)–based nanocomposite membrane for dye desalination. Based on the chelate reaction polyethyleneimine (PEI) with metal ions, an Ag + –PEI complex layer was deposited onto the hydrolyzed PAN surface. Then, the chelate complex layer was served as the templates to in-situ synthesize the vitamin E succinate (VES)-functionalized AgCl nanoparticles，which were uniformly distributed on the membrane surface and provided additional transport pathways for water molecules. The prepared nanocomposite membrane achieved the permeability of 106.4, 101.2 and 92.3 L m −2 h −1 MPa −1 , which was 20–50% higher in comparison with that of the pure Ag + –PEI@HPAN membrane, with corresponding rejections of 99.2%, 99.5% and 99.8% to crystal violet, acid fuchsin and congo red solution at the concentration of 0.1 g L −1 . Meanwhile, this membrane possessed a low inorganic salts rejection (6.2%, 9.6% 8.3% and 12.8% for MgCl 2 , NaCl, MgCl 2 and Na 2 SO 4 ) and good stability during the 60 h filtration of dye-salt mixture. We anticipate that this novel route could be applied to prepare the polymer-supported nanocomposite membrane with enhanced separation performance.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Express
·
2019
·Vol. 9
·期 1
·59-64
·
IF 1.465
Li Yongjian,Dai Haipo,Feng Nana,Xie Xiaoling,Zhang Jie,Li Wei
Silver chloride/molybdenum disulfide (AgCl/MoS2) nanocomposites were fabricated through a simple chemical precipitation method and used as electrochemical sensors to detect chloramphenicol. The nanocomposites exhibit an excellent sensing property because of the synergistic
effect of MoS2 and AgCl. The AgCl/MoS2 nanocomposite with a molar ratio (MoS2:AgCl) of 1:3 has a high sensitivity of 3802 μA mM–1 cm–2, a linear range of 4–531 μM, good selectivity, and an estimated
limit of detection of 1.93 μM at a signal-to-noise ratio of 3. This nanocomposite shows accurate measurement results in honey and milk samples and thus can be used for food inspection.
研究领域:
分析化学
·
食品科学
·
纳米技术
✓ 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）