JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Zhouyang Jiang,Wenhan Kong,Fenglin Zhao,Qingyue Han,Yangxi Liu,Suqing Wang,Haihui Wang
Highly purified LiOH is a common raw material of cathode active materials of lithium-ion batteries. Its demand is rapidly increasing with the fast development of the electric vehicles. The traditional enrichment process of LiOH relying on water evaporation requires a lot of energy. Here, we demonstrate the ability of NASICON-type Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 membrane electrodialysis to enrich the LiOH aqueous solution with a low concentration. This Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 membrane electrodialysis could extract 99.7% and 96.5% of Li + in 0.1, and 0.01 M LiOH feed solution, respectively, into 1 M LiOH receiving solution. And the transmembrane resistance between feed solution and receiving solution increased by 37.4, 389.5, and 964.6 Ω cm 2 , compared to the value for 1 M of LiOH feed solution as the feed solution concentration decreased to 0.1, 0.01 and 0.001 M, respectively. This quantitative assessment method for the resistance variation is crucial to the potential separation application of Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 membrane electrodialysis in salt-lake brine.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
CHEMICAL COMMUNICATIONS
·
2016
·Vol. 52
·期 78
·11661-11664
·
IF 6.567
Jin Han,Yubin Niu,Shu-juan Bao,Ya-Nan Yu,Shi-Yu Lu,Maowen Xu
Novel nanocubic KTi2(PO4)3 was successfully fabricated via a facile hydrothermal method combined with a subsequent annealing treatment and further evaluated as an electrode material for potassium-ion batteries for the first time. For comparison, carbon-coated KTi2(PO4)3 obtained by a normal cane sugar-assisted method reveals improved electrochemical performances in potassium-ion batteries. This work may give a new insight into developing electrode materials for potassium-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2021
·Vol. 32
·期 5
·5821-5830
·
IF 2.478
Hu Peng,Deng Zhaoping,Wang Teshen,Li Zepeng,Ma Yanlin
In this study, a series of Eu 3+ -doped NaBaBi 2 (PO 4 ) 3 red phosphors were synthesized by high-temperature solid-phase reaction method, and the phase structure and photoluminescence properties of the samples were investigated in detail. All the diffraction peaks of the phosphors with various Eu 3+ concentrations are well matched with the NaBaBi 2 (PO 4 ) 3 standard phase, indicating that Eu 3+ ions have no effect on the host structure. Under the excitation of 391 nm wavelength, the emission spectra consisted of four characteristic emission peaks at 595, 617, 656 and 703 nm, respectively. The strongest emission peaking at 617 nm originates from the 5 D 0 → 7 F 2 electron transitions of Eu 3+ ions. The optimum concentration of Eu 3+ ions in NaBaBi 2 (PO 4 ) 3 :Eu 3+ is 9% concentration. The phosphor exhibits strong absorption capacity in the near-ultraviolet region. The Commission International de I’Eclairage chromaticity coordinates of the NaBaBi 2 (PO 4 ) 3 :Eu 3+ samples are located in the red region, indicating that the phosphors are suitable red component to applied in near-ultraviolet-based white light-emitting diodes.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Xuemei Li,Shijian Wang,Xiao Tang,Rui Zang,Peng Li,Pengxin Li,Zengming Man,Cong Li,Shuaishuai Liu,Yuhan Wu,Guoxiu Wang
Sodium super-ionic conductor (NASICON) structured Na 3 V 2 (PO 4 ) 3 (NVP), a promising cathode material for sodium-ion batteries (SIBs), benefits by its unique three-dimensional (3D) channel structure. However, the inherent characteristics of NVP (such as low electrical conductivity) usually lead to inferior rate and long-cycling performance, which miss the requirements of practical application in electrical energy storage systems (ESSs). Herein, we propose the synthesis of porous high-crystalline Na 3 V 2 (PO 4 ) 3 /C nanoplates (NVP/C-P) via hydrothermal method and post-calcination. The porous nanoplate structure provides increased specific surface area and shortened diffusion pathway for ion/electron transport. Consequently, NVP/C-P cathodes exhibit a high specific capacity (117 mAh g −1 , 0.2 C), exceptional rate performance (76.5 mAh g −1 , 100 C) and long cyclic stability (10,000 cycles).
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2023
·
IF 3.8
Renping Cao,Jingyi Lin,Bang Lan,Fangrui Cheng,Ting Chen,Lan Li,Ru Liu,Jing Wang
Na 3 Sc 2 (PO 4 ) 3 :R (R = Bi 3+ , Sm 3+ , and Sm 3+ /Bi 3+ ) are successfully synthesized in air atmosphere. The high-temperature solid-state reaction method is used in this work. The X-ray diffractometer patterns confirm that all samples have the single pure phase Na 3 Sc 2 (PO 4 ) 3 . Na 3 Sc 2 (PO 4 ) 3 :Bi 3+ displays blue emission because of the Bi 3+ - Sc 3+ metal-to-metal charge-transfer and the 3 P 1 → 1 S 0 transition of Bi 3+ . Na 3 Sc 2 (PO 4 ) 3 :Sm 3+ shows red-orange emission with four emission bands derived from the 4 G 5/2 → 6 H 5/2 (550 - 582 nm), 6 H 7/2 (582–625 nm), 6 H 9/2 (625–675 nm), and 6 H 11/2 (675–750 nm) transitions of Sm 3+ . The optimal Sm 3+ concentration in Na 3 Sc 2 (PO 4 ) 3 :Sm 3+ is ∼8mol%. An adjustable color emission from blue to red-orange of Na 3 Sc 2 (PO 4 ) 3 :Sm 3+ , Bi 3+ with excitation at 345 nm can be observed when the ratio between Sm 3+ and Bi 3+ ions is changed. Na 3 Sc 2 (PO 4 ) 3 :Sm 3+ , Bi 3+ emits red–orange light under excitation 406 nm. The optimal Bi 3+ concentration in Na 3 Sc 2 (PO 4 ) 3 :8mol%Sm 3+ , Bi 3+ is ∼ 6mol%. The energy transfer from Bi 3+ to Sm 3+ in Na 3 Sc 2 (PO 4 ) 3 :Sm 3+ , Bi 3+ is verified by the spectral properties of samples. We discuss the influences of Bi 3+ or Sm 3+ concentration on luminescence properties of samples and analyze their luminous mechanism by energy level diagram. The experimental results of paper are useful for the research of new Bi 3+ and Sm 3+ doped phosphors.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2020
·Vol. 22
·期 35
·5809-5817
·
IF 3.117
Guangqing Zhang,Maxim S. Molokeev,Qianchao Ma,Xuening Yang,Shuiquan Han,Qi Chen,Binnian Zhong,Bin Ma
Eu3+-Doped Ba3In(PO4)3 was synthesized through a high-temperature solid-phase method. According to the structure refinement based on X-ray diffraction and density functional theory, the crystal and energy band structures of Ba3In(1−x)(PO4)3:xEu3+ were studied and analyzed in detail. The effect of Eu3+ doping concentrations on emission was studied at an excitation wavelength of 393 nm. For the material Ba3In(1−x)(PO4)3:xEu3+(x = 0.01–0.30), the optimal doping level is confirmed to be 0.18. Due to the thermal quenching differences of Eu3+ at the 5D0 and 5D1 energy levels, and based on the temperature-variable fluorescence intensity ratio between emission peaks, the optical temperature measurement performance of this material in the temperature range from 298.15 K to 623.15 K was characterized, and the maximum absolute and relative sensor sensitivities (Sa and Sr) were determined to be 0.1002 K−1 and 4.058%, respectively. With temperature as the only variable, the color of the phosphor changes from red to yellow light with rising temperature. Besides, Sa and Sr values of this phosphor are comparable to other sensing materials. The results indicate that Eu3+-doped Ba3In(PO4)3 phosphors have great potential to be applied in optical temperature sensing.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Qin-Chao Wang,Zhaoquan Peng,Sha He,Hao Chen,Jinglong Du,Huilin Zang,Xiaoge Li,Xiuqin Zhan,Jie Han
Sodium superionic conductor NaTi 2 (PO 4 ) 3 has attracted significant interest as an anode material for sodium-ion batteries (SIBs). However, its practical application is hindered by its low inherent electrical conductivity, particularly at low temperatures. In this study, oxygen vacancies (V O ) were introduced into NaTi 2 (PO 4 ) 3 nanoribbons to enhance sodium storage performance at low temperatures. X-ray diffraction with Rietveld refinement, electron paramagnetic resonance, and X-ray photoelectron spectroscopy confirm that NaTi 2 (PO 4 ) 3 -2 nanoribbons (NTP-2) exhibit the richest V O concentration. These V O , which bridge TiO 6 octahedra and PO 4 tetrahedra, significantly enhance the antibonding interactions of Ti1–O2 and P1–O1 bonds, while stabilizing the bonding in NaTi 2 (PO 4 ) 3 . The energy barrier for Na + migration is reduced to 0.40 eV involving the V O . The optimized NTP-2 anode demonstrates superior low-temperature performance, maintaining a capacity of 106.1 mAh g −1 (about 96.1 % of its initial capacity) at −20 °C after 300 cycles. Additionally, the NTP-2 anode exhibits a moderate Na + diffusion coefficient of 1.47 × 10 –11 cm 2 s −1 at −20 °C. Furthermore, the Na 3 V 2 (PO 4 ) 3 //NTP-2 full cell retains a capacity of 64 mAh g −1 at −20 °C after 250 cycles, highlighting its potential for low-temperature applications. By integrating oxygen vacancies and nanoengineering, both electronic and ionic conductivities are significantly enhanced in NaTi 2 (PO 4 ) 3 , positioning promising applications for SIBs in low-temperature environments.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
·
2022
·
IF 2.719
Zixiang Guo,Xue Qin,Yulong Xie,Chanrong Lei,Tianyu Wei,Yuzhe Zhang
Nanoparticle LiTi 2 (PO 4 ) 3 was prepared by solvothermal and calcination methods. LiTi 2 (PO 4 ) 3 -xh(x = 5, 7, 9, 13) was successfully synthesized under different calcination times in nitrogen atmosphere, and LiTi 2 (PO 4 ) 3 –7h showed excellent rate and electrochemical performance. It delivered discharge capacities of 141.2, 119.9, 109.8, 98.2, 87.3, and 76.7 mAh·g −1 at rates of 0.5, 1, 2, 5, 10, and 20C, respectively. In particular, its initial discharge capacity can reach 123.3 mAh·g −1 at the high rate of 10C. Hence, these superior properties demonstrate that LiTi 2 (PO 4 ) 3 –7h has great application advantages as a cathode for lithium-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yiting Liao,Lanzhen Peng,Xiaosong Zhou,Jin Luo,Limei Xu,Xiaomei Ning,Xiaoqin Zhou,Xunfu Zhou,Yueping Fang
Two major challenges in photocatalysis are the separation and utilization of photogenerated charge carriers that have limited their wider applications. To address these issues, significant studies have been devoted to the surface modification of photocatalysts. Herein, CdS nanorods were surface-modified by an ion-conducting LiTi 2 (PO 4 ) 3 (LTP) shell. This modification could accelerate the rapid separation and efficient utilization of photoinduced charge carriers. Therefore, CdS@LTP composite photocatalyst displayed a photocatalytic H 2 evolution rate of 26.01 mmol g −1 h −1 without any addition of cocatalysts in a Na 2 S/Na 2 SO 3 solution, which was over 6-fold compared to CdS, and showed improved stability. Furthermore, this shell can prevent the reverse reactions between H 2 and O 2 during photocatalytic water splitting. With the photo-deposition of Pt cocatalysts, CdS@LTP-Pt can achieve efficient overall water splitting with the highest H 2 generation rate (351 μmol g −1 h −1 ), which is 3.25 times higher than that of CdS-Pt. This study broadens the application of ionic conductor materials and provides a new way for the design of advanced photocatalysts for solar energy conversion.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
Crystals
·
2024
·Vol. 14
·期 5
·431
·
IF 2.4
Zhenggang Zou,Jiaolin Weng,Chun Liu,Yiyang Lin,Jiawei Zhu,Yijian Sun,Jianhui Huang,Guoliang Gong,Herui Wen
Inorganic scintillation crystals have been widely used in applications of high-energy physics, nuclear medical imaging, industrial nondestructive inspection, etc. In this work, a single crystal Ba3Y(PO4)3(BYP) with 1.0 at% Ce3+-doping concentration was first grown by the Czochralski method, and the electronic structure was calculated using first principles based on density functional theory. In addition, a series of Ce3+-doped BYP phosphors were synthesized, and the fluorescence emission under UV excitation was measured through low-temperature spectroscopy, containing double-peaked emission from 5d–4f transition and self-trapped exciton recombination. A comparison of the UV and X-ray-excited fluorescence spectra reveals the existence of oxygen vacancies as well as F+ centers in the crystal. The air annealing of the crystal effectively reduces the thermoluminescence defects but reduces the emission intensity under UV or X-ray excitation. The BYP:Ce crystal shows a fast decay lifetime of 15.5 ns, and the fast component is as short as 8 ns. The results show that the Ce3+-doped BYP crystal has potential as a kind of scintillator with fast decay properties.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Shumin Duan,Zhenjun Qing,An Liu,Haiyan Li,Yan Xue
The single-phase, cubic-structured Ba 3 La(PO 4 ) 3 ceramics were synthesized using the traditional solid-state reaction method. The ceramic sintered at 1375 °C exhibited a relative density of 95.4 %, indicative of a dense microstructure and excellent sintering characteristics. Furthermore, they displayed remarkable microwave dielectric properties : ε r = 9.54, Q × f = 32820 GHz, and τ f = −43.1 ppm/°C. In addition, the relative density is positively correlated with ε r and Q × f of ceramics. According to the complex chemical bond theory, the ionicity of the Ba/La–O bond has a more significant impact on the ε r , while the lattice energy and bond energy of the P–O bond respectively dominate the Q × f and τ f values. Moreover, the results from Raman spectroscopy indicate that several prominent Raman bands are associated with the vibration of the P–O bond. These findings suggest that Ba 3 La(PO 4 ) 3 ceramics hold promise for applications in high-frequency microwave communication.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Qing Zhu,Jinxin Wu,Wenhao Li,Xiuli Hu,Ningchen Tian,Liqing He,Yanwei Li
Na superionic conductor ( NASICON)-structured Na 4 MnCr(PO 4 ) 3 (NMCP) possessing unique three-electron transfer process renders admirable energy density for sodium ion batteries (SIBs). However, the current issues like its sluggish Na + diffusion kinetics, deficient intrinsic conductivity, and unsatisfactory structural stability, hinder its practical application. Herein, a selective replacement of O elements in PO 4 group by Cl anions in the NMCP system was developed to significantly enhance its electrochemical performance. The results affirm that the enhanced performance of Cl doped samples can be attributed to the enlargement of cell size, the creation of Na vacancies and the weakness of Na2 O bond after Cl doping. The as-prepared Na 3.85 □ 0.15 MnCr(PO 3.95 Cl 0.05 ) 3 /C (NMCPC − 15/C) cathode delivers a high capacity (128.0 mAh/g at 50 mA g −1 ) and excellent rate performance (73.0 mAh/g at 1000 mA g −1 ) in contrast to NMCP/C that merely provides 105.2 mAh/g at 50 mA g −1 and reduces to 47.4 mAh/g at 1000 mA g −1 . Meanwhile, NMCPC − 15/C shows a capacity retention of 60.7 % at 1000 mA g −1 after 500 cycles, while only 37.1 % for NMCP/C in the same test conditions. Moreover, the satisfactory performance and energy density of NMCPC − 15/C||hard carbon (HC) full cell confirm the potential practicality of NMCPC − 15. Therefore, chloride ions doping into NMCP has practical application prospects in the preparation of high-performance cathode materials and our work also offers new inspiration to apply anion doping strategies in promoting the performance of the other NASICON-structured cathodes for SIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）