JOURNAL OF THE AMERICAN CERAMIC SOCIETY
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2020
·Vol. 103
·期 8
·4275-4285
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IF 3.502
Mengting Guo,Chongyun Shao,Yang Zhang,Jingbo Yu,Yan Jiao,Malgorzata Guzik,Georges Boulon,Jinjun Ren,Lili Hu
The homogeneous Yb 3+ /Al 3+ /B 3+ -co-doped silica glasses were prepared via a sol-gel method. The impact of B 2 O 3 addition on the physical and optical properties and network structure was systematically studied. The network structure was investigated by the Fourier Transform Infrared (FT-IR), Raman spectra, and Solid State Nuclear Magnetic Resonance (SSNMR). Herein, B 2 O 3 addition can continuously decrease the refractive index and density. When B 2 O 3 is lower than 2 mol%, B 2 O 3 addition can obviously decrease the scalar crystal field parameters, Yb 3+ asymmetry degree, Yb 3+ cross-sections, due to the generation of Yb–O–B bonds at the cost of partial Yb–O–Al/Si ones. When B 2 O 3 is more than 2 mol%, FT-IR, Raman spectra, and SSNMR results indicate that further increased B atoms prefer to connect with Si and Al rather than Yb. Consequently, the above parameters are basically unchanged. Based on the results, an intuitive model of structure and properties evolution during the substitution of SiO 2 by B 2 O 3 has been established.
研究领域:
材料科学
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光学材料
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玻璃科学
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光谱学
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DOI
高影响因子
Journal of Energy Storage
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2026
·
IF 10.7
Pindu Chen,Xiaochun Wen,Jia Chen,Xiang Xu,Jianeng Huang,Li'’An Ma,Xiaoyun Ye,Hongxiang Chen
Manganese-based halides like Li 2 MnCl 4 are attractive for their cost-effectiveness and inverse spinel structure with ion channels. Their use as solid-state electrolytes is limited by low ionic conductivity at room-temperature and poor stability at the lithium interface. Current strategies focus on single-cation doping, which often offers limited conductivity improvements or causes side effects. This study proposes a dual-site cation-anion co-doping strategy to modify lattice defects and Li + migration pathways, thereby enhancing interfacial stability with metallic lithium. Lattice distortion is greatly induced, and Li + vacancy concentration is optimized in Li 1.7 Al 0.1 MnCl 4- x F x ( x = 0–0.7) by substituting Al 3+ at octahedral sites and partially replacing Cl − with F − . Structural and electrochemical tests show that moderate co-doping maintains the cubic structure and greatly improves Li + transport. The best Li 1.7 Al 0.1 MnCl 3.9 F 0.1 exhibits a room-temperature ionic conductivity of 5.2 × 10 −5 S cm −1 , nearly ten times higher than pristine Li 2 MnCl 4 , with a reduced activation energy of 0.45 eV. The distribution of relaxation time analysis further reveals that interface-related relaxation processes remain relatively stable over long time scales. Stable lithium stripping/deposition was demonstrated for hundreds of hours at 0.1 mA cm −2 in lithium-symmetric batteries. However, polarization during long cycling indicates challenges with interfacial stability. This work underscores the impact of dual-site co-doping in developing low-cost, high-performance manganese-based halide solid-state electrolytes.
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高影响因子
Chemistry-An Asian Journal
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2019
·Vol. 14
·期 20
·3648-3654
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IF 3.698
Shu-Li Yao,Xue-Mei Tian,Le-Qian Li,Sui-Jun Liu,Teng-Fei Zheng,Yong-Qiang Chen,Da-Shuai Zhang,Jing-Lin Chen,He-Rui Wen,Tong-Liang Hu
Graphical Knowing it Al : A Cd II -based metal-organic framework that displays high sensitivity and selectivity toward Al 3+ detection is reported, with a low detection limit of 0.048 ppm. Due to its good thermal and chemical stabilities as well as recycling property, it holds great potential for application in recognizing Al 3+ by turn-on effect. A new metal-organic framework (MOF) {[Cd 2 (bbib) 2 (ndc) 2 ]⋅2DMF} n ( JXUST-1 ) (bbib=1,3-bis(benzimidazolyl)benzene, H 2 ndc=1,4-naphthalenedicarboxylic acid, DMF= N , N -dimethylformamide) has been solvothermally synthesized and characterized by single-crystal X-ray diffraction, PXRD, TGA, IR and elemental analysis. JXUST-1 exhibits a three-dimensional 6-connected pcu topology with a Schläfli symbol {4 12 .6 3 } constructed by [Cd 2 (CO 2 ) 3 ] secondary building units. Fluorescence studies show that this MOF can sensitively and selectively recognize Al 3+ via a fluorescence enhancement effect, and the detection limit is 0.048 ppm. Furthermore, JXUST-1 displays relatively good thermal and chemical stabilities as well as reusability. All these results suggest JXUST-1 to be a highly selective and recyclable luminescent sensing material for the detection of Al 3+ .
研究领域:
材料科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
TALANTA
·
2017
·
IF 4.162
Bin Bin Chen,Rong Sheng Li,Meng Li Liu,Hong Yan Zou,Hui Liu,Cheng Zhi Huang
Determination of phosphate ion (PO 4 3- ) is important in biomedical and environmental arrays because its controlling concentrations are associated with different pathologies or the quality of water. Herein, we report a new type of photoluminescence (PL) probe for highly selective detection of PO 4 3- based on a single-layered graphene quantum dots chelating with aluminium ions (s-GQDs-Al 3+ ) system. The PL of s-GQDs can be enhanced by Al 3+ through the aggregation-induced emission enhancement (AIEE) effect. With the addition of PO 4 3- , the PL of the s-GQDs-Al 3+ system is faded away because PO 4 3- has stronger coordination with Al 3+ which results in the elimination of AIEE effect and the decrease in the PL intensity of the s-GQDs-Al 3+ system. Therefore, the s-GQDs-Al 3+ system can behave as an on-off type PL probe for PO 4 3- detection. It is found that the PL intensity ratio ( I / I 0 ) of s-GQDs in the presence of Al 3+ at 463 nm is proportional to the concentration of PO 4 3- in the range of 0.25–7.5 μM with the limit of detection as low as 0.1 μM. This selective assay has a great application prospect in the complex matrixes owing to its simplicity and specificity for PO 4 3- detection.
研究领域:
分析化学
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环境科学
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生物医学
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DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2024
·
IF 5.7
Lina Liu,Kai Cui,Fuqiang Song,Daoyuan Wang,Baoyan Wang,Xiaoliang Tang
Color-tunable luminescent hydrogels have shown significant potential in smart display devices, data encryption and multilevel anti-counterfeiting due to their excellent flexibility, functional versatility and optical properties. However, developing hydrogels that exhibit prominent optical decryption capabilities while maintaining robust mechanical properties remains a challenge. Herein, we present an Al3+ stimulus-triggered luminescent hydrogel with the integrated properties of wide multi-color tunability, self-healing capacity, high strength (160%) and an impressive toughness (180 kJ m−3). The double-network in the hydrogel with rich hydrogen bonds is well compatible with various luminophores. These include luminescent layered rare earth hydroxide nanosheets (LRH NSs) with red/green (R/G) emission and a chemosensor molecule that displays a fluorescence “turn-on” change in blue (B) emission only in the presence of Al3+ as a stimulus. Consequently, this smart hybrid hydrogel not only provides an adjustable tool for tuning the visible color of soft materials based on orthogonal responsive R/G/B three-primary-color luminescence, but also acts as a specific key for enabling color-switchable anti-counterfeiting and information encryption/decryption. These unique optical properties of the luminescent soft material highlight its potential as a hydrogel-based functional platform for the development of intelligent and color-tunable cryptographic devices with low cost, facile synthesis, and good processability.
研究领域:
材料科学
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光学工程
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化学
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高影响因子
Green Energy & Environment
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2020
·
IF 6.395
Lu Gan,Jiachen Guo,Siying Che,Qiaoxin Xiao,Mingyang Wang,Jienan You,Congmin Wang
Specific fluorophore was introduced into ionic liquid based on its tunability, thus a kind of novel fluorescent ionic liquid probe [P 66614 ][HQS] was designed, synthesized and characterized. Compared with non-fluorescent HQS, ionic liquid [P 66614 ][HQS] emitted a certain amount of fluorescence, which could be attributed to the well-delocalized frontier orbitals and its charge transfer character, as demonstrated by quantum chemical calculation. Considering the interaction of [P 66614 ][HQS] with metal ions, the application for detecting specific substance as a chemical sensor, such as Al 3+ was investigated. Compared with the traditional probe HQS, significant improvements in Al 3+ detecting was achieved by [P 66614 ][HQS] with stronger binding ability, better sensitivity and selectivity. The better performance of [P 66614 ][HQS] was contributed to the changed charge distribution, leading to the stronger binding interaction. We believe that this new fluorescent ionic liquid exhibited unique properties in detecting Al 3+ in aqueous solution, which would broaden the application of ionic liquids.
研究领域:
分析化学
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材料科学
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DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2022
·
IF 6.364
Pingan Tan,Xu Huang,Jingsong Liu,Lijia Cao,Fei Yang,Chong Xian,Honglan Yuan
Y 2.5- x Bi 0.5 Al x Fe 5 O 12 (YIG-Al x ) ceramics have been synthesized at 1175 ℃ by the solid-state reaction method. The effects of the co-doped Bi 3+ , Al 3+ ions on the phases, micromorphology, and dielectric and magnetic properties of the yttrium iron garnets (YIG) were investigated. Excessive introduction of Al 3+ ions led to the collapse of the YIG lattice and precipitation of the Bi 3+ and Fe 3+ ions; while moderate Al 3+ doping improved the dielectric properties , but not the saturation magnetization. The YIG-Al 0.2 ceramics proved to have particularly good electromagnetic properties ( ε r = 18.34 ± 0.05@11.19 GHz, tan δ = 3.09 ± 0.55 × 10 −4 , M s = 19.82 ± 0.55 emu/g). Additionally, tightly bonded Y 2.3 Bi 0.5 Al 0.2 Fe 5 O 12 /Ni 0.8 Zn 0.2 Fe 2 O 4 (YIG-Al 0.2 /NZF) composite substrates were prepared by co-firing at 1175 ℃. The composite substrates exhibited superior electromagnetic properties (YIG-Al 0.2 : ε r = 18.37 ± 0.05@11.15 GHz, tan δ = 3.08 ± 0.55 × 10 −4 , M s = 21.09 ± 0.55 emu/g; NZF: M s = 67.5 ± 0.55 emu/g), which were slightly affected by the diffusion of Ni and Zn from the NZF. Our findings show that YIG-Al 0.2 /NZF substrates have great potential for use as RF band circulators.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Hua Liang,Zongchen Li,Daqiang Wu,Ke Dai,Luyao Zhong,Yonggang Liu,Minhao Yan,Xianguo Tuo
Structure is a crucial factor to decide the selectivity and sensitivity of chemosensors. In this work, a diacylhydrazone 2a and its congeneric derivatives 2b-2d were synthesized and their applications for Al 3+ detection were investigated. Except 2d , all the other compounds exhibit notable turn-on fluorescence toward Al 3+ over 15 other metal ions and the sensitivities of 2b and 2c are even higher after modification, illustrating ortho -OH indispensability in their structures for sensing. Reversibility investigation shows that the sensors all have regeneration ability. Meanwhile, the sensor-Al 3+ systems show selective fluorescence turn-off for Cu 2+ , providing a potential platform for tandem recognition of Al 3+ and Cu 2+ . 2a as a standard, shows a 1:2 molar ratio to Al 3+ confirmed by Job’s plot, 1 H NMR spectra and mass spectra, and its detection limit for Al 3+ is 7.63 nM in ethanol. It has relevant sensitivity over pH 3-9, with the highest sensitivity at around pH 4. Apart from Al 3+ detection, anion selectivity was also explored and it shows that 2a , 2b and 2c all have selectivity toward CN − evidenced by UV-vis spectra.
研究领域:
化学传感器
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分析化学
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材料科学
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DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
·
IF 4.3
Yingwei Gao,Shuo Zhang,Bo Ge,Hui Zhao,Chuanyu Jin,Hui Yan,Limin Zhao
The high thermal stability and chemical durability of amide-linked covalent organic frameworks (amide COFs) make them a promising material for a range of new applications. Nevertheless, the low reversibility of the amide bond presents a significant challenge to the direct synthesis of amide-bonded COFs. In this paper, we present a simple method for synthesizing amide COFs. The synthesis of imine-linked COFs was initially achieved through the reaction of 2,4,6-tris(4-aminophenyl)-1,3,5-triazine and 2,5-dimethoxybenzene-1,4-dicarboxaldehyde. Subsequently, amide COFs were synthesized via the oxidation of the imine bond into an amide bond, utilizing ammonium persulfate as the oxidizing agent. Due to the difference of link bond, two COFs separately displayed distinct and significant fluorescence enhancement for Al 3+ and Ce 3+ , which was highly sensitive and less affected by environmental factors. The strategy offers a novel approach to the convenient and environmentally benign synthesis of amide COFs, which may facilitate their wider applications.
研究领域:
材料科学
·
化学
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Hao Deng,Jiyang Xie,Dandan Gao,Wanbiao Hu
The rich diversity of transition-metal pairs bridged by oxygen contributes to the fascinating magnetic behaviors in high-entropy oxides (HEOs), while the complex interplay between multisite lattice configurations, spin states, and magnetic exchange interactions remains yet to be explored. Here, we report the Al3+-driven octahedral site preferential occupations and tunable magnetic frustration in spinel-type [5M1/(5+x)Alx/(5+x)]3O4 (x = 0–5; M = Cr/Fe/Mn/Zn/Co) HEOs. Nonmagnetic Al3+ preferentially occupies octahedral sites (PB), which significantly distorts the lattice with expansion in tetrahedral sites while shrinkage in PB–O. This structural evolution enables tuning of magnetic properties, e.g., competition between ferromagnetic and antiferromagnetic states, spin glass, and spin-flop frustration states. Alternating-current susceptibility presents apparent spin frustration that follows a critical slowing-down model, which is suppressed when the Al3+ level is beyond x = 2 because of the weakly frozen and disordered magnetic moments. These findings bring insights into modulating magnetic exchange interactions within multiple structural complexities for designing HEOs with tunable magnetic properties.
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DOI
高影响因子
MINERALS ENGINEERING
·
2026
·
IF 6
Ling-Ping Pu,Ren-Gui Xiao,Yu Kuang,Guang-Shao Yang,Xiao-Nan Lv,Xiang Ke
In situ synthesis of Li 5 AlO 4 through CO 2 controlled co-precipitation. • The hydrothermal method breaks the Li 5 AlO 4 lattice bonds, separation of Al 3+ /Li + . • A novel route for Li extraction from low-grade lithium ores. With lithium becoming increasingly essential for the production of batteries, the extraction of lithium from low-grade ores has drawn considerable attention. After roasting and acid leaching of low-grade lithium ore, the content of lithium element in the leachate is relatively low, while the content of impurities (Al, Fe, Ca, etc) is relatively high, which complicates the separation and the preparation of high-purity lithium salts. Herein, the leachate derived from low-grade clay-type lithium ore is employed as the raw material. Initially, chemical precipitation is applied to sequentially remove Fe 3+ , Ca 2+ , and Mg 2+ through pH adjustment. Subsequently, CO 2 is introduced into a solution containing Al 3+ and Li + to control the pH, thereby regulating the precipitation kinetics of Al 3+ . This enables the co-precipitation of Al 3+ /Li + and in-situ generates pentalithium aluminate (Li 5 AlO 4 ) compounds. Finally, a hydrothermal method is employed to successfully cleave the Li–O/Al–O bonds within the Li 5 AlO 4 lattice, achieving separation of Al 3+ and Li + ions. This process facilitates Li + enrichment and the successful preparation of high-purity Li 3 PO 4 . Meanwhile, the aluminum oxyhydroxide (AlO(OH)) as a byproduct was obtained. Products and intermediate stages characterization and analysis were performed using various analytical methods. Theoretical analysis was conducted on the Al-Li co-precipitation and the subsequent Li + leaching mechanism. This innovative method offers a novel approach for the efficient extraction of lithium resources from low-grade lithium ores. Download: Download high-res image (134KB) Download: Download full-size image
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jun Wu,Lei Zhao,Yuhua Zhang,Shengfei Sun,Lu Yao,Cuina Yang,Zhifeng Liu
Tungsten oxide (WO 3 ) films were prepared by the hydrothermal method, and their micro-properties were characterized by microscopic testing techniques. Combining an electrochemical workstation with an ultraviolet–visible (UV–Vis) spectrophotometer, the effects of electrolyte type (1 mol/L AlCl 3 •6H 2 O/H 2 O and LiClO 4 /C 4 H 6 O 3 ) and driving voltage (0.4, 0.6, 0.8 V for Al 3+ electrolyte, 0.8, 1.0, 1.2 V for Li + electrolyte) on their electrochromic properties were systematically investigated. The results indicated that WO 3 films exhibited a nanorod cluster morphology with a hexagonal phase crystal structure. Al 3+ electrolyte demonstrated superior electrochromic properties compared to Li + electrolyte. At the same driving voltage of 0.8 V, the peak current density and area of the cyclic voltammetry curve for Al 3+ electrolyte were 4.19 times and 5.20 times those of Li + electrolyte. Additionally, the charge transfer resistance was lower, the static optical modulation curve was higher, and the dynamic optical modulation and coloration efficiency were 1.88 times and 1.46 times those of Li + electrolyte. Notably, the colored time for Al 3+ electrolyte was shorter than that of Li + electrolyte, while its bleached time was longer. Furthermore, increasing the driving voltage enhanced optical modulation but decayed cycling stability. The decay evolution model of cycling stability comprised three stages: stable decay, rapid decay, and residual decay. At lower driving voltages, only the stable decay stage occurred. With driving voltage increasing, all three stages emerged, accompanied by accelerated decay rates and shortened decay cycles. Besides, the driving voltage threshold for Al 3+ electrolyte was lower than that for Li + electrolyte, while its optical modulation and cycling stability were superior. The decay mechanism of cycling stability could be attributed to four factors: ion trapping, lattice distortion, electrostatic attraction, and interfacial reaction. This study can provide theoretical references for the development and application of high-performance electrochromic smart windows.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）