JOURNAL OF ELECTRONIC MATERIALS
·
2023
·Vol. 52
·期 11
·7184-7192
·
IF 2.1
Yang Shengyan,Chang Niannian,Han Mengyuan,Zhang Yang
Pb-free piezoelectric ceramic materials (K 0.48 Na 0.48 Li 0.04 )(Nb 0.92 Ta 0.08− x Sb x )O 3 (KNLNTS) were designed and prepared. The effects of varied Sb/Ta doping on the physical structure, surface morphology, and electrical characteristics of ceramics were also studied. The perovskite structure is present in all of the doped ceramic samples without any secondary phase (when x < 0.05). All of the doped ceramic samples have a Curie temperature ( T C ) above 300°C. At the same time, the orthorhombic–tetragonal phase transition temperature ( T O–T ) is pushed closer to ambient temperature. Doping with Sb/Ta/Li changed the electrical characteristics of the samples and increased their piezoelectric properties. At x = 0.03, the KNLNTS sample has the best piezoelectric properties: d 33 = 215 pC/N, Pr = 26.08 μC/cm 2 , T C = 342.6°C.
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MATERIALS RESEARCH INNOVATIONS
·
2023
·
IF 0
Yunhang Liu,Jiale Han,Yurii Mishchenko,Andrii Butenko,Vladyslav Kovalenko,Hongyuan Zhao
Herein, a novel electrochemical sensor was designed for the sensitive determination of methyl parathion (MP) using the Super P Li carbon black@β-cyclodextrin (SPLCB@β-CD) decorated glassy carbon electrode (GCE). SPLCB with high electroactive area exhibited exceptional conductivity and good dispersive property, which is beneficial for forming the interlinked conductive network structure. β-CD could not only promote the uniform dispersion of SPLCB but also effectively realise the enrichment of MP molecules. Moreover, the existence of SPLCB could make up for the defect of poor conductivity of β-CD. Under the optimal experimental condition (pH = 7.0, enrichment time: 60 s). The collaborative cooperation of SPLCB and β-CD achieved the excellent MP detection property (LOD: 8.6 nM; concentration range: 0.01–10 μM). The SPLCB@β-CD/GCE sensor exhibited acceptable repeatability and reproducibility. In addition, the proposed sensor was successfully employed to detect MP in apple juice (Recoveries: 98.0–98.6%, RSD values: 3.68–4.63%).
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ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Shuokun Sun,Xiaoyan Xia,Fei Wang,Mingrui Gao,Wei Wei,Shichuang Cui,Quanyao Zhu
Electrochromic materials have garnered significant interest owing to their eco-friendliness, energy efficiency, and ease of use. Among these materials, vanadium-based compounds are regarded as highly promising; however, they are plagued by issues such as ion channel collapse, capacity loss, and inadequate cycling stability when employed in aqueous solutions. The present study involves the compounding of KV 3 O 8 ·0·75H 2 O (KVO) into a network composed of linear methylcellulose, leading to the development of a self-supporting cellulose composite KVO electrochromic film. Specifically, the doping of K was found to disrupt the preferential orientation of the V 2 O 5 (001) crystal plane and to widen the interplanar spacing to 6.9 Å. Furthermore, Cellulose was discovered to remarkably increase the viscosity of the solute (6 times) and to undertake the function of a "reinforcing agent". The methylcellulose composite KVO film's electrochromic properties were then investigated in a 1 mol L − 1 LiClO 4 non-aqueous electrolyte. Consequently, the film was able to switch between green-yellow and orange-red, and it was also capable of conserving more than 67% of its charge capacity after 2000 cycles. More importantly, flexible electrochromic devices were assembled from KVO/MC films. A self-healing LiClO 4 /PC (LOC)-based gel electrolyte composed of Ethene, 1‑chloro‑1,2,2‑trifluoro-, polymer with 1,1‑difluoroethene (P(CTFE‑VDF)) and Li + electrolyte was developed, which was highly compatible with the device. The device possessed a high color efficiency of 78.8 cm 2 C − 1 , and achieved fast response (≤5.6 s) and long service life (>77% of the charge capacity and 70% of the optical contrast after 10,000 cycles). This design presents considerable potential for the fabrication of large area (12 × 15 cm 2 ) flexible devices.
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JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Kuo Chen,Feiyang Li,Tao Wei,Hengyu Zhou,Tengfang Zhang,Shengchao Zhao,Tengteng Xie,Haixiang Sun,Peng Li,Q. Jason Niu
The Mg 2+ /Li + screening selectivity determines the practical application of nanofiltration technology in lithium extraction from salt-lake brines and industrial lithium production. In this work, a membrane structure design strategy based on the interlayers was developed to prepare nanofiltration (NF) membranes with high Mg 2+ /Li + separation selectivity and high permeability. Through investigating the influence of the interlayer charge on the structure and performance of the NF membrane, the interlayer for the preparation of the NF membrane with high Mg 2+ /Li + separation selectivity was screened. Relevant characterizations indicate that the positively charged interlayer can endow the NF membrane with appropriate pore size and surface charge density to achieve high Mg 2+ /Li + separation selectivity through the synergistic effect of size sieving and Donnan exclusion. Moreover, the pore size of the NF membrane is controlled by the release rate of the piperazine (PIP) from the interlayer, while the surface charge density of the NF membrane is jointly determined by the charge of the interlayer and PA layer. The performance evaluation suggests that the NF membrane prepared with the best screened interlayer has a Mg 2+ /Li + separation factor up to 88.6 while maintaining a high permeability (22.5 L m −2 h −1 ·bar −1 ), which is better than that of the most membranes reported in the literature. Overall, this work is expected to promote the practical application of NF membranes in lithium extraction from salt-lake brines and industrial lithium production.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Rui Zhang,Yihong Guo,Jianguo Yu,Sen Lin
Lithium/aluminum layered double hydroxide imprinted with SO 4 2- (ILDH) was prepared to enhance the lithium adsorption performance in low grade sulfate-type brines. The systematical characterization confirmed the ILDH had a morphology of two-dimensional lamella that was less randomly arranged than the traditional lithium/aluminum layered double hydroxide (TLDH). ILDH demonstrated a significantly enhanced adsorption performance in the long-term adsorption–desorption cycle replying on the excellent structural stability from the imprinting effects compared to TLDH. The adsorption capacity of ILDH was about 3.0 mg/g after 10 cycles, and the column experiments manifested that the Mg 2+ /Li + mass ratio could be significantly declined from 57.99 in the Yiliping sulfate-type brine to 2.36 in the desorption solution with 2.77 mg/g Li + adsorption capacity at room temperature .
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Honghu Li,Nuoya Chen,Weifeng Liu,Huazhang Feng,Jingyun Su,Dongju Fu,Xuguang Liu,Mingxia Qiu,Luyang Wang
The prosperity of the lithium-ion battery industry has raised deep concerns about spent batteries. Recently, much attention has been focused on the development and advancement of lithium battery recycling. Deep eutectic solvents are efficient, environmentally friendly, and economical leaching solvents with great potential for the recovery of cathode materials from spent lithium-ion batteries. However, to date, deep eutectic solvents have been considered a disposable agent for lithium-ion battery recycling, resulting in organic waste after a single recycling. Here, we demonstrate a reusable deep eutectic solvent based on maleic acid (MA) and ethylene glycol (EG), designed to recycle LiCoO 2 cathode materials from spent lithium-ion batteries. With a high loading capacity (59 g/L), the leaching efficiencies of Co and Li by MA:EG are 98.3 % and 98.4 % respectively. MA:EG can be refreshed by adding oxalic acid as a precipitant. Even after 4 cycles, the leaching efficiency of Co is still 90 % and the average recovery efficiency of Co products is over 96.5 %. Lithium is present in a high concentration and is also recovered in the form of oxalate. This work provides a novel and environmentally friendly recycling route that can economically and efficiently recover the valuable metals Li and Co from spent lithium-ion batteries.
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ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 41
·2303812
·
IF 19
Ming-Yuan Shen,Jing-Song Wang,Zhouhong Ren,Tao Wu,Xi Liu,Liwei Chen,Wen-Cui Li,An-Hui Lu
P2-type layered oxide material Na 2/3 Ni 1/3 Mn 2/3 O 2 is a competitive candidate for sodium-ion batteries (SIBs). Nevertheless, it suffers from the strong P2–O2 phase transition during charging to the high voltage regime, rendering drastic volume variations and poor cycling performance. Here, a Quasi-zero strain P2-Na 0.75 Li 0.15 Mg 0.05 Ni 0.1 Mn 0.7 O 2 cathode is synthesized, which reflects the vanishing P2–O2 transition with a volume change as low as 0.49%, thus resulting in the material an excellent cycling performance (83.9% capacity retention after 500 cycles at 5 C). The low-volume strain can be attributed to two aspects: (1) the Mg 2+ riveted in the Na layer can act as a “pillar” to stabilize the crystal structure under the condition of sodium removal, thus restricting the structural changes under high voltage. (2) The entry of Li + into the transition metal (TM) layer can mitigate the electron localization in the highly desodiation state and can effectively immobilize the coordination oxygen atoms, thus suppressing the slip of P2–O2 transition. This study not only provides a new insight of Li and Mg synergetic substitution effect on the structural stability of P2-type cathode, but also an efficient avenue for developing cathode materials of SIBs with ultralow bulk strain.
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ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Mengke Li,Gaojie Yan,Peng Zou,Haifeng Ji,Han Wang,Zongjie Hu,Zhipeng Yang,Yi Feng,Haijie Ben,Xiaojie Zhang
First, a new covalent organic framework (HUT9) with disulfide bonds have been synthesized, which can be grown in situ on carbon nanotubes (CNT) as separator modification material for Li–S batteries. Experiments and DFT showed that disulfide bond could effectively capture soluble polysulfides (LiPSs) during discharge process, while promoting the conversion of LiPSs to Li2S/Li2S2 and improve the utilization rate of sulfur. The polar groups of the covalent organic framework provide chemisorption, and an interwoven network of HUT9@CNT (physical constraints) cooperates to inhibit the transport of LiPSs. The modified battery has a capacity retention rate of 83% (decay rate of 0.032% per cycle) after 500 cycles at 1 C. Specifically, the battery with 2-HUT9@CNT modified separators (sulfur loading: 4 mg cm–2, sulfur content: 80%, electrolyte/sulfur ratio: 10 mL g–1) can reach 3.4 mAh cm–2 area capacity after 50 cycles. This work enriched the COF material system and provided guidance for the application of organic materials in an energy storage system.
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DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 39
·15067-15073
·
IF 4.569
Yi Huang,Junben Huang,Yong Zhang
Metal thiophosphates have aroused much research interest due to their structural chemistry and possible applications as infrared functional materials. In this study, five quaternary Sr-based alkali metal thiophosphates ASrPS4 (A = Li, Na, K, Rb, Cs) were obtained. Their structural comparison shows that their symmetry undergoes transformation from tetragonal (I41/acd) to monoclinic (P21/c) to orthorhombic (Pnma) system, which is induced by the cation size effects and coordination features of different alkali metal cations. The experimental and theoretical results demonstrate that the band gaps of all title compounds are large, namely 3.6–3.9 eV (experimental results) and 3.78–4.12 eV (HSE06). Theoretical analyses indicate that the [PS4] group could be regarded as a good unit for designing wide band gap compounds, and the birefringence of NaSrPS4 is 0.08 at the fundemental 1064 nm wavelength, which shows that it may be a potential infrared birefringent material.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Zhichuan Shen,Jiawei Zhong,Shiyong Jiang,Wenhao Xie,Shiying Zhan,Kaiji Lin,Linyong Zeng,Hailing Hu,Guide Lin,Yuhan Lin,Shuhui Sun,Zhicong Shi
Because of their high ionic conductivity, utilizing gel polymer electrolytes (GPEs) is thought to be an effective way to accomplish high-energy-density batteries. Nevertheless, most GPEs have poor adaptability to Ni-rich cathodes to alleviate the problem of inevitable rapid capacity decay during cycling. Therefore, to match LiNi0.8Co0.1Mn0.1O2 (NCM811), we applied pentaerythritol tetraacrylate (PETEA) monomers to polymerize in situ in a polyacrylonitrile (PAN) membrane to obtain GPEs (PETEA-TCGG-PAN). The impedance variations and key groups during the in situ polymerization of PETEA-TCGG-PAN are investigated in detail. PETEA-TCGG-PAN with a high lithium-ion transference number (0.77) exhibits an electrochemical decomposition voltage of 5.15 V. Noticeably, the NCM811|PETEA-TCGG-PAN|Li battery can cycle at 2C for 120 cycles with a capacity retention rate of 89%. Even at 6C, the discharge specific capacity is able to reach 101.47 mAh g–1. The combination of LiF and Li2CO3 at the CEI interface is the reason for the improved rate performance. Moreover, when commercialized LFP is used as the cathode, the battery can also cycle stably for 150 cycles at 0.5C. PETEA and PAN can together foster the transportation of Li+ with the construction of a fast ion transport channel, making a contribution to stable charge–discharge of the above batteries. This study provides an innovative design philosophy for designing in situ GPEs in high-energy-density lithium metal batteries.
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PubMed
高影响因子
Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-15
·
IF 23.655
Guo Cong,He Lu,Yao Yihang,Lin Weizhi,Zhang Yongzheng,Zhang Qin,Wu Kai,Fu Qiang
The phase change materials possess conformable configuration to the structure of Li-ion batteries in macro-scale and multidirectional thermal pathways for rapid and uniform heat transfer in micro-scale.
Hierarchically structured phase change materials achieve dual-mode thermal management ability for heating and cooling Li-ion batteries.
Excellent practical battery thermal management performance was verified by 18,650 Li-ion batteries in both cold and hot environments.
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JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Yangqing Wu,Mei Wang,Shaolian Sun,Shan Shao,Ziyu Pan,Jinkai Li,Haoming Wei,Bingqiang Cao
X-ray excitation photodynamic therapy is a new photodynamic therapy mode that induces tumor cell apoptosis by indirectly stimulating photosensitizer on nanoparticles with X-ray as excitation light source and generating singlet oxygen. It solves the problem of light penetration in traditional photodynamic therapy and realizes the treatment of deep tumors. At present, the weak X-ray-induced luminescence restricts further development of X-ray photodynamic therapy. NaLuF 4 :Li + /Gd 3+ /Tb 3+ rare-earth nanoparticles with uniform size and regular morphology were synthesized by solvothermal method . The X-ray-induced luminescence intensity of NaLuF 4 :Li + /Gd 3+ /Tb 3+ NPs was improved by Li + and Gd 3+ ions co-doping. The light yield of NaLuF 4 :Li + /Gd 3+ /Tb 3+ NPs with 5% Li + ions doping was 1.4 times than that of reference sample due to the change of crystal field symmetry. Furthermore, the effective lifetime of persistent luminescence increased from 221.5 s to 251.9 s after 15% Li + ions doping. The thermoluminescence curves confirmed that the trap concentration was increased after Li + ions doping, which was responsible for enhancing persistent luminescence lifetime . Long persistent luminescence emission laid a foundation for further application in photodynamic therapy.
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