Crystals
·
2022
·Vol. 12
·期 2
·266
·
IF 2.67
Runqing Liu,Hongping Wu,Hongwei Yu,Zhanggui Hu,Jiyang Wang,Yicheng Wu
A new noncentrosymmetric cadmium indium borate, Cd4InO(BO3)3(CIBO) has been successfully developed via a standard solid-state reaction. Its crystal structure was confirmed by the single crystal X-ray diffraction, which shows that CIBO belongs to the non-centrosymmetric and polar space groupCm. Its structure contains the distorted InO6and CdOn(n = 6, 8) polyhedra, which link together by sharing an edge or corner to build a three dimensions framework with BO3triangles accommodated in tunnels. Benefiting from the approximately parallel configuration of BO3triangles, CIBO exhibited a strong second harmonic generation (SHG) effect (3 × KDP), and moderate birefringence of 0.077@1064 nm. Further optical and thermal characterizations suggest that CIBO possesses a wide transparent window and good thermal stability. Theoretical calculation reveals that the macroscopic SHG coefficients of CIBO results from the synergistic effect of the parallel arrangement of BO3groups andd10Cd2+cation.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 31
·50760
·
IF 3.125
Xiaochen Yu,Jia Zheng,Zhaoxi Zhou,Qihui Chen,Maochun Hong,Heqing Fu
Firstly, cerium dioxide(CeO 2 ) was modified by 3-(Methylacryloxyl)propyltrimethoxy silane (KH-570), and modified CeO 2 (mCeO 2 ) was prepared. Then poly (urethane-acrylate) was modified by mCeO 2 , and poly (urethane-acrylate)/modified CeO 2 (PUA/mCeO 2 ) composites with ultraviolet absorption property were prepared. The morphology, thermal hydrophobicity, mechanical properties, optical properties, and UV-absorption properties of PUA/mCeO 2 composites were studied. XRD and SEM analysis showed that the modified CeO 2 had better dispersion in the matrix than that of pure CeO 2 . Ultraviolet–visible spectrum and thermogravimetric analysis were used to characterize the optical properties and thermal stability of PUA/mCeO 2 composites. The results showed that with the increasing of the mCeO 2 content, the UV-absorption property of PUA/mCeO 2 composites was improved gradually. When the content of mCeO 2 is 3%, the absorption of ultraviolet of PUA/mCeO2 composites is about 5 times of pure PUA film, and the absorption band is mainly in the UVA section. The thermal stability of PUA/mCeO 2 composites was improved with the adding of mCeO 2 . With the increasing of mCeO 2 content, the contact angle of PUA/mCeO 2 composites increased significantly. And the UV-absorption mechanism of PUA/mCeO 2 Composites was studied. UV-curable PUA/mCeO 2 composites have good UV absorption property and water resistance. They will be used in the sun screen and protect people's skin.
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 43
·15312-15321
·
IF 6.4
Rui Rui Yang,Fangrui Cheng,Bang Lan
Trivalent rare earth Eu3+-doped luminescent materials have been used successfully for illumination and displays due to their narrow emission lines and extreme stability. Extending the excitation band to the UV, near UV and blue region via doping lanthanide ions as a sensitizer is highly desired for white LED application. However, the complex redox reaction and forward/backward energy-transfer pathway between the sensitizer ion and Eu3+ ion in the same lattice of the phosphor host limits the potential of this strategy. Herein, we present the luminescence properties of hierarchical porous composite materials with the formula Tb(C12H8N2)2(NO3)3@Ca0.9Eu0.1MoO4 and report how interfacial energy-transfer enhanced the absorption range of the Eu3+-doped material in the UV region. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images illustrated that the obtained Ca0.9Eu0.1MoO4 had a hierarchical porous structure, and the Tb(C12H8N2)2(NO3)3 was evenly filled inside the holes or the surface. The photoluminescence and decay data indicated the existence of interfacial forward energy transfer from Tb3+ → Eu3+. Furthermore, the thermal stability of the composited Tb(C12H8N2)2(NO3)3 was improved, indicating the potential of the composite materials for application in UV light-emitting diodes.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Jingrui Kang,Rui Gu,Xu Guo,Jing Li,Hongchen Sun,Leiyang Zhang,Ruiyi Jing,Li Jin,Xiaoyong Wei
NASICON-type structured compounds Li 1+ x M x Ti 2- x (PO 4 ) 3 (M = Al, Fe, Y, etc.) have captured much attention due to their air stability, wide electrochemical window and high lithium ion conductivity. Especially, Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) is a potential solid electrolyte due to its high ionic conductivity . However, its actual density usually has a certain gap with the theoretical density, leading the poor ionic conductivity of LATP. Herein, LATP solid electrolyte with series of SnO–P 2 O 5 –MgO (SPM, 0.4 wt%, 0.7 wt%, 1.0 wt%, 1.3 wt%) glass addition was successfully synthesized to improve the density and ionic conductivity. The SPM addition change Al/Ti–O bond and P–O bond distances, leading to gradual shrinkage of octahedral AlO 6 and tetrahedral PO 4 . The bulk conductivity of the samples increases gradually with SPM glass addition from 0.4 wt% to 1.3 wt%. Both SPM and the second-phase LiTiPO 5 , caused by glass addition, are conducive to the improvement of compactness. The relative density of LATP samples increases first from 0 wt% to 0.7 wt%, and then decreases from 0.7 wt% to 1.3 wt% with SPM glass addition. The grain boundary conductivity also changes accordingly. Especially, the highest ionic conductivity of 2.45 × 10 −4 S cm −1 , and a relative density of 96.72% with a low activation energy of 0.34 eV is obtained in LATP with 0.7 wt% SPM. Increasing the density of LATP solid electrolyte is crucial to improve the ionic conductivity of electrolytes and SPM glass addition can promote the development of dense oxide ceramic electrolytes.
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Xiao-Fan Wu,Qingmei Ge,Nan Jiang,Mao Liu,Hang Cong,Zhu Tao
Utilizing a novel concept of chiral amplification induced by host-guest interactions, a new macrocyclic compound , benzo[3]uril (BU[3]), was formed in a chiral microenvironment via the encapsulation of L -cysteine∙H + (L-Cys∙H), and the electrochemiluminescence properties of BU[3] were sensibilized with the formation of a supramolecular complex . Based on this principle, an ultra-sensitive chiral electrochemiluminescence sensor was constructed to recognize the enantiomer of penicillamine (PA). This sensor exhibited high selectivity and sensitivity for L -PA compared to other reported values, with a detection limit of 10 -12 mol·L -1 within a linear range of 10 -5 –10 -10 mol·L -1 , and no obvious electrochemiluminescence response to D -PA. The sensor presents high stability, good reproducibility, strong anti-interference ability, and acceptable recovery, which suggests an ability to quantitatively detect L -PA in an aqueous environment.
✓ 已验证
DOI
高影响因子
DYES AND PIGMENTS
·
2021
·
IF 4.889
Pengyue Sun,Diya Yang,Jing Li,Yaodong Zhang
In this work, 4-formyl-3-hydroxybenzoic acid (FHBA), which does not contain a large conjugated ring structure, exhibited aggregation-induced emission (AIE) in aqueous solvents. On this basis, FHBA and a metal-organic framework material (i.e., ZIF-8) form into a complex (FHBA@ZIF-8), which presents the AIE characteristics of FHBA. Then, lanthanide metal (i.e., Eu 3+ ) coordinates with guanosine 5′-monophosphate disodium (GMP) salt to synthesize a coordination polymer (LnCP), which combines with FHBA@ZIF-8 do afford a novel double-emitting fluorescence probe (FHBA@ZIF-8@Eu-GMP, FZE) for tetracycline antibiotics (TCAs). TCAs coordinate with Eu 3+ and act as antenna ligand. Thus, an “antenna effect” comes into being and effectively enhances the emission intensity of Eu 3+ at 616 nm. Moreover, the UV–vis spectra of TCAs largely overlap with the excitation spectrum of FHBA, resulting in an inner filter effect (IFE) and quenching of blue-green fluorescence from FHBA molecules at 473 nm. The ratio of fluorescence signal (F 616 /F 473 ) showed a good linear relationship with the concentration of tetracycline hydrochloride (TC) in the range of 0.1–200.0 μM, and the detection limit was 60 nM (S/N = 3). This fluorescence probe can also effectively respond to oxytetracycline hydrochloride (OTC) and chlortetracycline hydrochloride (CTC). The probe was applied to determine TC in milk, and the recoveries ranged from 94.0% to 101.4%, indicating the application potential of this method. This study provides a novel idea for the construction of ratiometric fluorescence sensing platforms and shows the application potential of the AIE effect of FHBA.
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2014
·
IF 3.916
Yajuan Zhang,Airong Xu,Benlian Lu,Zhiyong Li,Jianji Wang
The development of highly efficient cellulose solvents is imperative to the effective utilization of cellulose. In this work, ionic liquids (ILs) with the same 1-allyl-3-methylimidazolium cation ([Amim] + ) but different carboxylate anions, such as formate ([HCOO] − ), acetate ([CH 3 COO] − ), propionate ([CH 3 CH 2 COO] − ), butyrate ([CH 3 CH 2 CH 2 COO] − ), glycollate ([HOCH2COO] − ), lactate ([CH 3 CHOHCOO] − ) and benzoate ([C 6 H 5 COO] − ) were synthesized, and their thermal properties and viscosities were determined. Then these ILs were used to investigate the effect of anion structure on solubility of cellulose in the ILs. It was shown that the viscosity and cellulose solubility depended strongly on the anion structure of the ILs. For example, at 30 °C solubility of cellulose in [Amim][CH 3 CH 2 COO] was as high as 19.0%, whereas cellulose was not soluble in [Amim][HOCH 2 COO], [Amim][CH 3 CHOHCOO] and [Amim][C 6 H 5 COO]. In addition, solvatochromic UV/vis probe and 13 C NMR measurements were performed to demonstrate dissolution mechanism of cellulose in the ILs. The results suggested that although cations of the ILs have un-negligible contribution to the highly efficient dissolution of cellulose, hydrogen bonding interactions of anions of the ILs with cellulose is predominant.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 103
·期 10
·5664-5677
·
IF 3.502
Yao Ji,Yongbao Xiao,Shujing Huang,Weichao Wang
Fluoro-sulfo-phosphate (FPS) glass is of current interest as potential material for laser application due to its good glass-forming ability, thermal, and chemical stability as well as the complicated local environment for incorporated species. Herein, the physical and luminescent properties of Er 3+ and Yb 3+ /Er 3+ -doped FPS glasses vs S/F ratio are investigated comprehensively. The low melting temperature (750°C) leads to fewer ingredients evaporation and easier operation. The sulfate addition depolymerizes the structure of FPS glasses, leading to either monotonic or nonmonotonic variations of physical properties, while no deterioration in thermal and limited one in chemical stability is caused. The addition of sulfate also modifies the local structure around optical active species and thus, leading to higher emission cross section (1.52 × 10 −20 cm 2 ), effective linewidth (68.4 nm), figure of merit (5.61 × 10 −23 s cm 2 ), gain bandwidth (102.44 × 10 −27 cm 3 ), and energy-transfer microparameters (51.87 × 10 −39 cm 6 /s), implying high possibility to serve as 1.5 μm laser application.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Suo Chen,Jie Hou,Xin He,Qingyuan Wang,Wei Wang,Min Zhou,Kangli Wang,Kai Jiang
Manganese-based NASICON-type compounds are promising as high-energy-density cathodes for sodium-ion batteries. However, the structural defects of Mn ions inside the crystal framework reduce the sodium storage capacity, voltage plateau, and cyclic stability of the cathodes. Here, a strategy to inhibit the Mn ion defects of Na4MnCr(PO4)3 has been proposed by using different phosphate sources. It is found that Na4MnCr(PO4)3 prepared with NH4H2PO4 (NMCP-N) exhibits less noticeable voltage hysteresis than that of Na4MnCr(PO4)3 prepared with H3PO4 (NMCP-H), indicating that the site occupation defects of Mn ions in the Na4MnCr(PO4)3 crystal structure are successfully suppressed, as confirmed by theoretical calculations and structural refinements. In the case of NMCP-N, a capacity of 109.7 mAh g–1 is delivered at 0.01 A g–1, and 54.2% capacity retention can be kept after 500 cycles at 0.5 A g–1, which is much better than that of the counterpart of NMCP-H (a lower capacity of 96.1 mAh g–1 and poorer cyclability of only 22.8% capacity retention after 500 cycles), showing that the structure defects strongly affect the sodium storage properties of Na4MnCr(PO4)3 cathodes. This work provides an effective strategy to manipulate the structure defects of Mn-based NASICON-type cathode materials to enhance their electrochemistry.
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 4
·1849-1861
·
IF 3.5
Haodi Dong,Changcheng Liu,Que Huang,Yanjun Chen
Nowadays, the poor conductivity and unstable structure have become obstacles for the popularization of Na3V2(PO4)3 (NVP). In the current work, a dual-modified Mn0.1Cl0.3-NVP composite doped with Mn and Cl is prepared by a facile sol–gel method. When Mn2+ with a large ionic radius replaces small V3+, it can improve the stability of the NVP crystal structure. In addition, the replacement of V3+ by Mn2+ in a low valence state can generate redundant hole carriers, which is conducive to the rapid transport of electrons. The substitution of PO43− by Cl−, which is more electronegative, can reduce the impedance and facilitate the movement of Na+. Owing to the synergistic effect of Mn and Cl co-substitution, the structural stability of NVP was systematically enhanced, and the electron transfer and ion diffusion were effectively improved. Consequently, the optimized Mn0.1Cl0.3-NVP sample demonstrated superior electrochemical performance and kinetic properties. It exhibited a high reversible capacity of 109.2 mA h g−1 at 0.1C. Even at 15 and 30C, high discharge capacities of 70.3 mA h g−1 and 68.2 mA h g−1 were observed after 2000 cycles with capacity retention above 80%. Moreover, it delivered remarkable capacities of 77.1 and 73.4 mA h g−1 at 100 and 200C with retained capacity values of 50.3 and 47 mA h g−1, respectively, after 2000 cycles. Furthermore, the assembled Mn0.1Cl0.3-NVP//HC full cell delivered a high value of 94.7 mA h g−1 and lit LED bulbs, indicating its excellent application potential.
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 1
·1-9
·
IF 2.8
Song Peiqi,Zhu Zhe,Yao Zhonghua,Hao Hua,Cao Minghe,Liu Hanxing
Piezoelectric materials are widely used in the direction of sensors. PZT-based ceramics are very suitable for precision sensors. However, due to the low Curie temperature, the application temperature range of the material is relatively narrow. Here we show a high-performance material 0.6PZT–0.4PNN. In this case, a morphotropic phase boundary (MPB) region was artificially designed in the 0.6Pb(Zr x Ti 1 −x )O 3 –0.4Pb(Ni 1/3 Nb 2/3 )O 3 ( x = 0.35–0.41) ceramics to develop high-performance piezoelectric compositions which could cofire with low-cost Ag/Pd inner electrode by 0.2wt% Li 2 CO 3 addition. The ceramic composition at x = 0.39 near MPB possess exceptional properties with high piezoelectric coefficient d 33 ∼ 611 pC/N, planar electromechanical coupling coefficient k p ∼ 53.5%, low mechanical quality factor Q m ∼ 64.5 piezoelectric strain of 0.17%, and suitable Curie temperature T c ∼ 191 °C, respectively. The fact that d 33 was detected close to T c , and no noticeable change below 6.6% in cycling stability was observed at 20 kV/cm means a robust temperature-independence and fatigue reliability of the piezoelectric ceramics. Thus, this research provides a novel high-piezoelectricity configuration with elemental regulation, comparable to the commercial PZTs.
✓ 已验证
DOI
高影响因子
Science China-Chemistry
·
2013
·Vol. 57
·期 3
·397-401
·
IF 1.327
Zhang QiBo,Hua YiXin,Wang Rui
Direct electroreduction of solid cuprous chloride to prepare copper powder in a “neutral” ambient-temperature ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid (BMIMBF 4 ) was investigated. Cyclic voltammetry of the CuCl powder in a Pt-powder cavity microelectrode exhibited that solid CuCl can be electrochemical reduced in the ionic liquid. Chronoamperometry of the salt powder filled Mo-cavity electrode (current collector) in the ionic liquid further demonstrated the conversion of chloride-to metal inside the cavity, as confirmed by scanning electron microscopy, energy-dispersive X-ray, and X-ray diffraction spectra.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）