Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yingzhi Meng,Zhaojie Wang,Xiang Niu,Yuleng Jiang,Peng Nong,Silin Tang,Jiyang Xie,Wanbiao Hu,Dingyuan Wang,Biaolin Peng,Shengguo Lu,Laijun Liu
The development of high-performance electrocaloric effect (ECE) is of great importance for local refrigeration (such as chip and wearable electronics cooling, etc.). However, how to simultaneously achieving both a large ECE and a wide working temperature range near the room temperature are long-term challenges for lead-free ceramics. Herein, we report a novel lead-free ceramic with a high-performance ECE. Phase coexistence and optimized ferroelectric domain configuration and ultra-fine grains were constructed by {Nb 5+ , In 3+ } co-doping in B 0.9 Ca 0.1 TiO 3 ceramics near the room temperature. Ultimately, an ultrahigh ECE of 3.0 K and a wide working temperature range of 97 K are obtained near the room temperature in the composition (B 0.9 Ca 0.1 Ti 0.89 (Nb 0.5 In 0.5 ) 0.11 O 3 ). Furthermore, the origin of the high ECE performance was elucidated by the microstructures characterized using piezoresponse force microscopy (PFM) and atomic-resolution HAADF-STEM, and the dielectric and ferroelectric properties. This work provides an innovative approach for achieving high-performance ECE.
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产品关联
DOI
高影响因子
ChemSusChem
·
2022
·Vol. 15
·期 11
·e202200313
·
IF 9.14
Gaoli Guo,Xiaoping Tan,Kaidi Wang,Huang Zhang
Aqueous zinc batteries have been regarded as a promising energy storage technology due to their high energy, high material abundance, low toxicity, and intrinsic safety. NASICON-type materials have been proposed as efficient cathodes for rechargeable batteries, yet they suffer from fast degradation and low Coulombic efficiency in aqueous batteries. Here we demonstrate that a rationally designed aqueous electrolyte containing a supporting Na salt and polymer additive can efficiently suppress the water activity through hydrogen bonding and facilitate the anion involvement in interfacial reactions, thus enabling the stable operation of sodium superionic conductor (NASICON) cathodes in aqueous zinc batteries. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the cell with zinc metal anode exhibits high cycling Coulombic efficiencies (around 99.9 % in average) with a steady output voltage and capacity retention for 300 cycles. This work addresses the potential issues with NASICON-type cathodes in aqueous zinc batteries and proposes an effective solution via fundamental interphasial chemistry to design efficient and sustainable aqueous electrolytes. Graphical Engineering electrode-electrolyte interphase : A rationally designed aqueous electrolyte with bi-cation and polymer additive is reported for aqueous zinc batteries with NASICON cathodes. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the full cells exhibited remarkable cycling stability and efficiency, benefiting from the well-suppressed material dissolution by electrolyte-induced interfacial engineering.
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高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Binggong Yan,Yongchao Wang,Hongliang Ren,Xizhao Lu,Masashi Kotobuki,Bin Liu,Kaiyong Jiang
NASICON-structured solid-state electrolyte, namely Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) possesses high ionic conductivity and good compatibility with lithium metal that make it an ideal electrolyte for next-generation lithium battery. However, high interfacial impedance and possible dendrite limit its practical applications. To reduce interfacial impedance, herein, surface texturing on the LAGP is conducted using a femtosecond laser, and further wetted by ionic liquids. The femtosecond laser-modified surface can effectively increase wettability and improve the interfacial contacts. Low area specific impedance of 81.4Ω cm -2 is obtained and the full battery demonstrates good electrochemical performances.
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高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Peng Wei,Yanxiang Liu,Yarui Su,Ling Miao,Yangyang Huang,Yi Liu,Yuegang Qiu,Yuyu Li,Xiaoyu Zhang,Yue Xu,Xueping Sun,Chun Fang,Qing Li,Jiantao Han,Yunhui Huang
We are presenting a sol–gel method for building novel nanostructures made of nanosized F-doped Na1–2xTi2(PO4)3–xFx (NTP-Fx, x = 0, 0.02, 0.05, and 0.10) particles embedded in three-dimensional (3D) carbon matrices (NTP-Fx/C). This technique combines advantages of both zero-dimensional materials and 3D-carbon networks. Proper fluorine doping stabilizes the NTP structure and greatly enhances ion/electron transportation, leading to superhigh-rate electrochemical performance and ultralong cycle life. The composite electrode delivers high specific capacities of 121, 115, 112.2, 110.1, 107.7, 103.1, 85.8, and 62.5 mA h g–1 at 0.2, 0.5, 1, 2, 5, 10, 20, and 30 C, respectively. It retains an unbelievable ∼70% capacity after a thousand cycles at a rate as high as 10 C. Electroanalytical results reveal that fluorine doping significantly enhances Na+ diffusion kinetics. Meanwhile, density functional theory calculations demonstrate F-doped NTPs’ own outstanding electrochemical properties, which is due to the enhanced intrinsic ionic/electronic conductivity. The results show that anion doping is an efficient way to make high-performance NTP anodes for sodium-ion batteries.
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高影响因子
PROGRESS IN PHOTOVOLTAICS
·
2016
·Vol. 25
·期 1
·113-122
·
IF 7.365
Bo Yang,Sikai Qin,Ding-jiang Xue,Chao Chen,Yi-su He,Dongmei Niu,Han Huang,Jiang Tang
Because of its tunable band gap and band position, Sb 2 (Se 1 − x S x ) 3 (0 ≤ x ≤ 1) is a promising light-absorbing material for photovoltaic device applications. However, no systematic study on the synthesis and characterization of single-phase polycrystalline Sb 2 (Se 1 − x S x ) 3 thin films has been reported. Through introducing in situ sulfurization into the rapid thermal evaporation process, a series of single-phase, highly crystalline Sb 2 (Se 1 − x S x ) 3 films with x = 0.09, 0.20, 0.31, and 0.43 were successfully obtained, with the corresponding band gap, band position and film morphology fully revealed. Futhermore, solar cells with superstrate ITO/CdS/Sb 2 (Se 1 − x S x ) 3 /Au structure were fabricated and carefully optimized. Finally, a champion device having 5.79% solar conversion efficiency was obtained employing uniform Sb 2 (Se 0.80 S 0.20 ) 3 absorber layer. Our experimental investigation confirmed that Sb 2 (Se 1 − x S x ) 3 is indeed a very promising absorber material worth further optimization. Copyright © 2016 John Wiley & Sons, Ltd.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Rui Du,Chenghao Qian,Changcheng Liu,Que Huang,Yanjun Chen
Currently, the low ionic and electronic conductivities of Na 3 V 2 (PO 4 ) 3 (NVP) have been hindered its further application. In this paper, a simultaneous optimized method of Er 3+ substitution and carbon nanotubes (CNTs) enwrapping is proposed for the first time. Due to the large ionic radius of Er 3+ (89 pm vs 64 pm of V 3+ ), Er 3+ occupying the position of V 3+ makes the crystal structure more stable and alleviates the deformation of the crystal cell. Meanwhile, the interplanar spacing of NVP is broadened after introducing Er 3+ , so the de-intercalation rate of Na + can be accelerated and the kinetic properties are improved. In addition, the enwrapped CNTs connecting with amorphous carbon layers construct a conductive substrate for the fast electronic transportation, which significantly modifies the electronic conductivity. Moreover, the CNTs benefits to inhibit the agglomeration of NVP active materials and make the distribution more uniform and grain size more smaller. The decreasing size indicates a shorter pathway for Na + migration, which improves its apparent ionic diffusivity . Through the above analysis, the dual modification strategy can efficiently improve the kinetic properties of NVP system. Notably, Na 3 V 1.93 Er 0.07 (PO 4 ) 3 / C@CNTs (NVEP-0.07) submits a high capacity of 84.2 mAh g −1 at 50 C and maintains 70.6 mAh g −1 after 8000 cycles, corresponding to a high retention ratio of 83.9 %. The assembled NVEP-0.07 // CHC full cell reveals 146.2 mAh g −1 at 0.1 C, which successfully lightens the LED bulbs, indicating the excellent application potential of NVEP-0.07. Impressively, the recycled XRD/SEM/XPS results demonstrate the significantly improved crystal stability and chemical state of NVEP-0.07.
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高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
·
2016
·Vol. 44
·期 8
·1286-1290
·
IF 0.566
Li-Hua DENG,Jin-Bo DAI,Zhen-Lin XU,Jin-Yi YANG,Hong WANG,Zhi-Li XIAO,Hong-Tao LEI,Yuan-Ming SUN,Yu-Dong SHEN
To detect furaltadone metabolite 3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ) in fish sample, a Eu 3+ labeling time-resolved fluoroimmunoassay (TRFIA) was developed. The experimental conditions were optimized as follows: the AMOZA-OVA concentration was 0.25 μg mL −1 ; the antibody was diluted by 50000 folds, and the competitive reaction time was 50 min. Under the optimal conditions, the method showed a detection limit of 0.01 ng mL −1 , an IC 50 of 0.26 ng mL −1 and a linear range (IC 20 −IC 80 ) of 0.025−2.83 ng mL −1 . The spiked recoveries of AMOZ in fish at three spiked levels ranged from 78.0% to 86.0%, and the relative standard deviations were less than 15%. Good correlation between ic-TRFIA and high performance liquid chromatography-tandem mass spectrometry was obtained for spiked food samples. The proposed ic-TRFIA method was suitable for the determination of AMOZ residue in food samples.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2018
·Vol. 28
·期 36
·1802684
·
IF 13.325
Zhongyu Zhang,Malin Li,Yu Gao,Zhixuan Wei,Meina Zhang,Chunzhong Wang,Yi Zeng,Bo Zou,Gang Chen,Fei Du
Hybrid potassium-ion capacitors (KICs) show great promise for large-scale storage on the power grid because of cost advantages, the weaker Lewis acidity of K + and low redox potential of K + /K. However, a huge challenge remains for designing high-performance K + storage materials since K + ions are heavier and larger than Li + and Na + . Herein, the synthesis of hierarchical Ca 0.5 Ti 2 (PO 4 ) 3 @C microspheres by use of the electrospraying method is reported. Benefiting from the rich vacancies in the crystal structure and rational nanostructural design, the hybrid Ca 0.5 Ti 2 (PO 4 ) 3 @C electrode delivers a high reversible capacity (239 mA h g −1 ) and superior rate performance (63 mA h g −1 at 5 A g −1 ). Moreover, the KIC employing a Ca 0.5 Ti 2 (PO 4 ) 3 @C anode and activated carbon cathode, affords a high energy/power density (80 W h kg −1 and 5144 W kg −1 ) in a potential window of 1.0–4.0 V, as well as a long lifespan of over 4000 cycles. In addition, in situ X-ray diffraction is used to unravel the structural transition in Ca 0.5 Ti 2 (PO 4 ) 3 , suggesting a two-phase transition above 0.5 V during the initial discharge and solid solution processes during the subsequent K + insertion/extraction. The present study demonstrates a low-cost potassium-based energy storage device with high energy/power densities and a long lifespan.
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DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·Vol. 14
·期 3
·2815-2821
·
IF 1.5
Xiang Ding,Xiaobing Huang,Shibiao Zhou,Anguo Xiao,Yuandao Chen,Chenggang Zuo,Junling Jin
Na 3 V 2 (PO 4 ) 3 (NVP) is a potential cathode material for sodium ion batteries (SIBs) due to its stable three-dimensional NASICON structure and high theoretical energy density. In this paper, the carbon-coated Na 3 V 2 (PO 4 ) 3 (NVP/C) cathode materials using pitch as carbon source were synthesized by a simple solid-state reaction method combined with microwave calcinations. The electrode performance of as-prepared NVP/C materials were investigated and the results demonstrated that the NVP/C composite with 13.1 wt.% carbon shows the best electrochemical properties. It possesses a high initial discharge capacity of 108.2 mAh g -1 , 90.5 mAh g -1 at 0.2 C and 10 C. After 1000 cycles at the rate of 10 C, the discharge capacity remained almost unchanged, with no capacity fading.
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DOI
高影响因子
IONICS
·
2022
·Vol. 28
·期 6
·2693-2700
·
IF 2.961
Ma Dongjuan,Chen Long,Li Yuan,Liu Yan,Zhang Hao,Wang Biyan
Solid polymer electrolyte (SPE) is an ideal substitute for routine liquid electrolyte for next-generation safety lithium (Li) batteries. Nevertheless, SPE cannot effectively impede Li dendrite growth due to the poor mechanical strength, which prevents its practical applications. Herein, an asymmetric sandwich solid electrolyte constructed by dopamine-modified Li 1.4 Al 0.4 Ti 1.6 (PO 4 ) 3 (PDA@LATP) on one side was prepared by solution casting method. The asymmetric electrolyte exhibits admirable ionic conductivity (1.2 × 10 –4 S cm −1 at 25 °C), high ionic transference number (0.47), wide voltage window (4.6 V vs . Li/Li + ) and good thermal stabilities. The PDA@LATP can not only impede Li dendrite growth, but also avoid the LATP reaction with Li anode. The assembled solid-state LiFePO 4 |Li battery assembled with asymmetric solid electrolyte delivers a satisfactory capacity retention up to 88.2% after 300 cycles at 0.5 C and under 25 °C (88.1% after 100 cycles at 0.5 C and under 70 °C). The asymmetric design of solid electrolyte provides a promising options for realizing safe energy storage systems. Graphical abstract We propose an asymmetric sandwich solid electrolyte, which can enable LiFePO 4 |Li battery stably and safely cycled at 25 °C and 70 °C, respectively, with excellent ionic conductivity, electrochemical and thermal stability. This asymmetric electrolyte ensures the inhibition of Li dendrites and stable electrolyte/anode interface.
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高影响因子
SYNTHETIC METALS
·
2014
·
IF 2.222
Peng Liu,Chao Yang,Xue Wang,Jinshan Guo,Baohua Hou
A facile method was developed for growing the alignment of polyaniline (PANI) nanofibers on three-dimensional (3-D) templates, via the chemical oxidative polymerization of aniline in dilute solution at 0–5 °C in presence of sulfonated polystyrene (SPS) microspheres and hydrochloric acid as template and dopant, respectively. Then the “hairy” PANI hollow microspheres were obtained after etching the templates with toluene. It was found that the formation of the “hairy” PANI hollow microspheres could be well controlled by altering the template concentration, thus the possible formation mechanism was deduced. The unique “hairy” PANI hollow microspheres prepared with the template concentration of 2.0 mg mL −1 possessed the specific capacitance of 298 F g −1 and the capacitance retention of 63.6% after 900 cycles.
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高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2024
·Vol. 26
·期 16
·12530-12536
·
IF 2.9
Dingding Lv,Xinlei Chen,Ningjing Jiang,Guanjun Wang,Xiaoqing Zeng,Wei Fang,Weixing Li,Mingfei Zhou
Trifluoroacetylacetone (TFAA) has two enol forms, which can switch to each other via proton transfer. While much attention has been paid to their conformational preferences, the influence of microsolvation on regulating the proton position remains unexplored. Herein, we report the rotational spectra of trifluoroacetylacetone–(water)n (n = 1–3) investigated by chirped pulse Fourier transform microwave spectroscopy in the 2–8 GHz frequency range. Two conformers were identified for both TFAA–H2O and TFAA–(H2O)2, while only one conformer was characterized for TFAA–(H2O)3. The results indicate that water binding on the CH3 side stabilizes the enolF form, whereas water binding on the CF3 side stabilizes the enolH form. The enolF form predominates over the enolH form in these hydrated complexes, which contrasts with the fact that only enolH exists in isolated TFAA. EnolH becomes preferred only when water inserts itself into the intramolecular hydrogen bond. Instanton theory calculations reveal that the proton transfer reaction is dominated by quantum tunneling at low temperatures, leading to the stable existence of only one enol form in each configuration of the hydrated clusters.
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高影响因子
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