Journal of Energy Storage
·
2023
·
IF 9.4
Lin Yang,Hong Zhang,Enjie Xia,Yanmei Wu,Zhicheng Li
The organic/inorganic composite solid electrolytes (CSEs) for solid-state lithium batteries (LIBs) have attracted much attention for the possible advantages such as good interfacial compatibility, low cost, high efficiency and safety, etc. In this work, Li 2 ZrO 3 inorganic Li-ion conductor is first time used as electrolyte filler for fabricating organic/inorganic CSE films. The CSE with 20 % (weight percentage) of Li 2 ZrO 3 powder in polyethyleneoxide (PEO) exhibits high comprehensive performance with room-temperature conductivity of 6.76 × 10 −6 S cm −1 , electrochemical window of 4.2 V and ionic transference number of 0.20. The introduction of Li 2 ZrO 3 obviously reduces the interfacial resistance between PEO and Li metal, and enhances the CSE stability by reducing the decomposition of LITFSI in CSE film. The assembled flexible Li/CSE/NCM811 solid-state LIBs deliver high rate capability and cycling stability. Li 2 ZrO 3 /PEO CSE is a promising electrolyte for flexible solid-state LIBs.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
Frontiers of Chemical Science and Engineering
·
2013
·Vol. 7
·期 3
·297-302
·
IF 0
Xiao Qiang,Tang Xiaodan,Liu Yefeng,Zhong Yijun,Zhu Weidong
A comparison study has been conducted on the strategies for synthesizing nanocrystalline Li 2 ZrO 3 and Kdoped Li 2 ZrO 3 absorbents for CO 2 capture at high temperatures, including solid-state and liquid-phase methods, citrate route, and starch-assisted sol-gel method combined with freeze-drying technique. The absorption properties, including uptake rate and absorption capacity, of synthesized absorbents were investigated by thermogravimetric analysis (TGA) at different CO 2 partial pressures. The nanosized Li 2 ZrO 3 crystals synthesized by the citrate route exhibit a faster uptake and a higher, nearly stoichiometric absorption capacity than those synthesized by the solid-state and liquid-phase methods. The doping of K into Li 2 ZrO 3 can significantly improve the uptake rate of CO 2 , especially at low CO 2 partial pressures. For the synthesis of K-doped Li 2 ZrO 3 , the citrate route has poor reproducibility and scalability, whereas the starch-assisted sol-gel method combined with freeze-drying technique is reproducible and easily scaled up, and the thus synthesized absorbents possess excellent CO 2 capture properties.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Ruitong Guo,Huiting Zhu,Xingyao Wang
Li 2 ZrO 3 -coated LiFePO 4 (LFP@C/LZO) was prepared by hydrothermal synthesis and ex-situ coating for the first time. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and charge-discharge tests were used to characterize lithium iron phosphate and the influences of different coating amounts on the material were systematically studied. The results show that when Li 2 ZrO 3 is 2 wt%, LFP@C/LZO-2 exhibits excellent electrochemical performance where the initial discharge capacities are 156.7 mAh/g and 111 mAh/g at 0.1 C and 1 C, respectively. And after 200 cycles at 1 C, the capacity can retain 81.62% of the initial value. Electrochemical impedance spectroscopy (EIS) shows that the introduction of Li 2 ZrO 3 can decrease the charge transfer resistance and improve the lithium-ion diffusion rate. The study reveals a moderate amount of Li 2 ZrO 3 can helpfully enhance the electrochemical properties of LFP and broadens options for surface coating of LFP and other electrode materials.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Guangfan Tan,Qilai Zhou,Yasuhisa Oya,Yingchun Zhang,Chang-An Wang,Yanhao Dong
The Li 2 TiO 3 and Li 2 ZrO 3 ceramic pebbles are regarded as promising tritium breeder on account of their superb chemical stability, high tritium diffusion rates, and neutron multiplication potential of Zr, respectively. To integrate the advantages of these two materials, it is necessary to develop a composite such as Li 2 TiO 3 -Li 2 ZrO 3 , which is ideal for advanced fusion reactor designs. Up to now, fabricated biphasic ceramic pebbles generally suffer from low production yield, inadequate crushing load, and high cost, which restricts their application in practice. In this paper, biphasic Li 2 TiO 3 -Li 2 ZrO 3 tritium breeding pebbles with superior crushing strength are successfully fabricated employing the centrifugal granulation method by selecting the appropriate binder and controlling the growth rate. Moreover, by this technique, ceramic pebbles with wide diameter distribution can be obtained, which will help to improve the packing factor of pebble beds in the solid blanket. In addition, the composition, microstructure, and internal structure of the Li 2 TiO 3 -Li 2 ZrO 3 ceramic pebbles are thoroughly analyzed, respectively. The Li 2 TiO 3 -Li 2 ZrO 3 ceramic pebbles, after being sintered at 1100 °C, attained a high sphericity of 0.97, a superior crushing load of 67.6 N, and an optimum porosity of 9.75 % in the shell. Moreover, the Li 2 TiO 3 -Li 2 ZrO 3 ceramic pebbles also exhibit excellent deuterium release properties with the main form of HDO. The above results show that the centrifugal granulation method is not only applicable to the mass production of Li 2 TiO 3 -Li 2 ZrO 3 ceramic pebbles but also to other tritium breeders, which offers promising prospects for the development of advanced tritium breeding materials in the future.
研究领域:
材料科学
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核工程
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陶瓷学
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聚变技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POROUS MATERIALS
·
2017
·Vol. 24
·期 5
·1319-1326
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IF 1.624
Guo Xingzhong,Ding Li,Ren Jing,Yang Hui
Monolithic lithium zirconate (Li 2 ZrO 3 ) with well-defined co-continuous macropores was successfully prepared via an epoxide-mediated sol–gel process accompanied by phase separation. Appropriate choice of poly(ethylene oxide) as a phase separation inducer and propyleneoxide as a gelation agent allows the production of continuous macroporous gel monolith. The dried gels are amorphous and tetragonal lithium zirconate ( t -Li 2 ZrO 3 ) precipitates firstly at 650 °C. The phase transformation from t -Li 2 ZrO 3 to monoclinic lithium zirconate ( m -Li 2 ZrO 3 ) initiates at 900 °C and completes when elevating the calcination temperature to 1000 °C. The macroporous structure is retained after heat-treatment, and the t -Li 2 ZrO 3 monolith with porosity of 43.3% and dense solid skeletons is obtained.
研究领域:
材料科学
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化学工程
·
陶瓷
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chong Ni,Zhen Li,Kai Wang,Yongchao Liu,Yuanyun Dou,Wentao Wu,Hongyu Wang,Yu Yao,Hongfa Xiang,Xuyong Feng
Surface modification is a highly effective strategy to suppress side reactions between electrode materials and electrolytes. The preparation of coated electrode materials generally involves two steps: the synthesis of electrode materials and subsequent surface coating, which is a long and costly process. Here, we report a novel solid-state reaction method to prepare Li 2 ZrO 3 -coated LiCoO 2 in a single step. By controlling the cooling rate, the solid solubility of Zr in LiCoO 2 decreases, resulting in the precipitation of Zr 4+ on the surface and the formation of a Li 2 ZrO 3 coating layer. X-ray photoelectron spectroscopy, combined with a focused ion beam and high-resolution transmission electron microscopy, confirms the uniform Li 2 ZrO 3 coating on the surface of LiCoO 2 . Electrochemical performance testing shows that Li 2 ZrO 3 -coated LiCoO 2 exhibits enhanced cycle stability, even when charged to 4.5 V. After cycling at 1C for 200 cycles, Li 2 ZrO 3 -coated LiCoO 2 maintains a capacity of about 180 mAh g −1 , which is 94 % of the initial 193 mAh g −1 .
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2018
·Vol. 124
·期 6
·1-10
·
IF 1.604
Yuan Kangkang,Jin Xiaotong,Xu Chonghe,Wang Xinqiang,Zhang Guanghui,Zhu Luyi,Xu Dong
Lithium zirconate (Li 2 ZrO 3 ) has been extensively studied as CO 2 capture material, electrolyte material and coating material. Most of the previous studies were focused on the powder structure, while seldom taking a consideration of fiber structure. In the present work, dense and porous Li 2 ZrO 3 nanofibers with surface area of 16 m 2 g −1 were prepared by electrospinning method. IR spectral results showed that lithium carbonate was the intermediate for the formation of Li 2 ZrO 3 . The phase transformation of Li 2 ZrO 3 underwent the pathway of amorphous precursor fibers, tetragonal zirconia and Li 2 CO 3 , tetragonal Li 2 ZrO 3 , and monoclinic Li 2 ZrO 3 . XRD and XPS results further suggested that Li 2 O diffusion from the fiber body to surface occurred for Li 2 ZrO 3 nanofibers when heat-treated above 900 °C, and the tetragonal Li 2 ZrO 3 with high surface area could be obtained at 800 °C. Bamboo structure appeared both for the dense and porous nanofibers heat-treated at 1000 °C. The high surface area and high thermal stability of tetragonal phase of Li 2 ZrO 3 make it a promising candidate in CO 2 absorption, electrolyte and coating material.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2018
·
IF 3.794
J.X. Bi,C.F. Xing,C.H. Yang,H.T. Wu
A novel series of rock salt structured (1-x)Li 2 ZrO 3 -xMgO ceramics were prepared via the conventional solid state method. The tetragonal-cubic phase transition can be observed in the case of 0.5 ≤ x ≤ 0.6, which has been testified by the results of XRD and SEM-EDS. Relatively dense and homogeneous microstructure can be obtained for all the compositions sintered at 1500 °C. With the x value increasing from 0.5 to 0.8, the relative permittivity linearly decreases from 16.50 to 12.65, and the τ f value decreases from ∼−10 ppm/°C to ∼−35 ppm/°C. The addition of MgO stabilizes the crystal structure and increases the bond energies in Li 2 ZrO 3 -MgO system, so there is an upward tendency in Q· f values from ∼77,000 GHz to ∼166,000 GHz. Typically, the Li 2 Mg 4 ZrO 7 ceramics sintered at 1500 °C possesses excellent properties with ε r = 12.65, Q· f = 165,924 GHz and τ f =-34.66 ppm/°C, which makes these materials good candidates for microwave devices.
研究领域:
材料科学
·
无机非金属材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2016
·Vol. 81
·期 3
·844-849
·
IF 1.473
Guo Xingzhong,Ding Li,Ren Jing,Yang Hui
Abstract Nanocrystalline lithium zirconate (Li 2 ZrO 3 ) was successfully prepared by an epoxide-mediated sol–gel process. The compositions and morphologies of Li 2 ZrO 3 were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and the CO 2 capture-regeneration properties of Li 2 ZrO 3 were investigated by thermogravimetric analysis. The introduction of propylene oxide as an acid scavenger increases the pH value of the system to mediate the sol–gel transition. The as-dried xerogel is amorphous and the nano-sized Li 2 ZrO 3 crystallites with a tetragonal phase precipitate after heat-treatment at 650 °C. The nanocrystalline tetragonal-Li 2 ZrO 3 exhibits a better CO 2 capture properties, possessing an adsorption capacity as high as 21 wt.% at 550 °C and a good stability confirmed by CO 2 capture-regeneration cycles. Graphical Abstract Nanocrystalline Li 2 ZrO 3 possessing good CO 2 capture properties was successfully prepared by an epoxide-mediated sol–gel process.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2025
·
IF 8.5
Zhihao Hong,Rong Liu,Yongjin Feng,Sifan Zong,Fantao Meng,Baoping Gong,Juemin Yan,Long Wang,Jijun Yang
The corrosion kinetics and deuterium permeation behavior of reduced activation ferritic/martensitic (RAFM) CLF-1 steel exposed to Li 2 ZrO 3 under high-temperature breeding blanket conditions were systematically investigated. The study revealed the corrosion kinetics of a bilayer corrosion structure that evolves with corrosion cycles, comprising a porous Fe-rich outer layer and a dense Cr-rich inner layer·H 2 O play a significant role in interfacial corrosion reactions, accelerating the degradation of the Fe-rich oxide through pore formation and delamination, resulting in enhanced deuterium permeation. Thermodynamic modeling confirmed that the interfacial reaction mechanism involves sequential structural transformations involving LiFeO 2 , Li 2 Fe 3 O 4 , Fe and LiCrO 2 phase. TEM reveals the dynamic microstructural evolution underlying the deterioration of the bilayer. A time-dependent corrosion model is proposed to elucidate the correlation between structural evolution and permeation resistance. With extended exposure, the Cr-rich LiCrO 2 phase dominates, acting as a passivating barrier that significantly impedes hydrogen isotope transport. Arrhenius analysis further substantiates the effectiveness of this evolving oxide structure in suppressing tritium permeation, highlighting the critical influence of H 2 O in corrosion-driven transport mechanisms.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2012
·Vol. 95
·期 5
·1544-1548
·
IF 2.272
Qiang Xiao,Xiaodan Tang,Yijun Zhong,Weidong Zhu
A facile starch-assisted sol–gel method combined with freeze-drying technique has been developed to synthesize K-doped Li 2 ZrO 3 sorbents. SEM, TEM, and XRD techniques have been applied to characterize the morphology and structure of the synthesized K-doped Li 2 ZrO 3 samples. The CO 2 capture-regeneration properties of the prepared K-doped Li 2 ZrO 3 sample were investigated using thermogravimetric analysis at different CO 2 partial pressures. The K-doped Li 2 ZrO 3 synthesized using the starch-assisted sol–gel method combined with the freeze-drying technique shows excellent CO 2 capture properties. At 823 K and a CO 2 partial pressure of 0.25 bar, the uptake of CO 2 reaches 22 wt% within 20 min, which is approximately 87% of the stoichiometric sorption capacity (25.3 wt%) of CO 2 in the K-doped Li 2 ZrO 3 with a K:Li:Zr composition of 0.2:1.6:1 in molar ratio. Furthermore, the sorbent shows a good stability, confirmed using capture-regeneration cycles.
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
JOURNAL OF SOLID STATE CHEMISTRY
·
2025
·
IF 3.5
Qin Jiao,Bingchuan Gao,Li Zhang,Mingjuan Han,Hui Wan,Guofeng Guan
In this study, lithium zirconate (Li 2 ZrO 3 )-based materials with varying Al doping levels were synthesized via an oxalic acid sol-gel method, and their CO 2 capture performance was evaluated in a high-temperature fixed-bed reactor. The findings revealed that the CO 2 capture performance improved notably, rising from 1.43 mmol/g to 2.05 mmol/g, as the Al doping concentration was elevated. Moreover, the Al-doped Li 2 ZrO 3 exhibited excellent cyclic stability, maintaining over 90% of its initial CO 2 capture capacity after 10 sorption/regeneration cycles at 600°C. The synthesized samples were systematically analyzed through multiple advanced characterization techniques. The findings confirmed that oxygen vacancies (OVs) generated during the Al 3+ -induced substitution of Zr 4+ not only enhance CO 2 chemical sorption but also accelerate surface reaction kinetics by facilitating the migration of oxygen ions and lithium cations during the carbonate formation stage. The kinetic fitting results indicated that the Avrami model could well describe the sorption process ( R 2 =0.9951). Reaction kinetic analysis revealed that indicated that the CO 2 sorption process was driven by a combination of physical sorption and chemical reaction mechanisms. This study provides important theoretical foundations and experimental support for the application of Li 2 ZrO 3 -based materials in carbon dioxide capture.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 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）