JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2024
·Vol. 110
·期 3
·678-689
·
IF 2.3
Hou Ruiting,Wang Shaozheng,Wang Haishan,Tian Lanlan,Zhu Xiangxiang,Li Yule,Chen Qingming,Zhang Hui
La 1- x Ca x MnO 3 , as a candidate for thermal radiation detectors, has received more attention due to the quest for a higher temperature coefficient of resistance (TCR), however, the narrow high-TCR temperature range greatly limits its application in uncooled bolometer. In this paper, Mn 3 O 4 - La 1- x Ca x MnO 3 ( x = 0–0.33) composite ceramics were prepared using the sol-gel method. A suitable TCR was achieved over a wide temperature range, including room temperature, by adjusting the Ca content. As the Ca content decreased, the resistivity ( ρ ) of the composite gradually increased at 300 K, and the positive TCR (PTC) peak shifted to a lower temperature. However, the negative TCR (NTC) was enhanced over a wider temperature range. When x = 0.05, the maximal NTC was −3.2%·K −1 within the range of 172 K–350 K and |TCR| > 2%·K −1 , spanning a large temperature range around 180 K, including room temperature. These results strongly indicate that the composite, such as Mn 3 O 4 - La 1- x Ca x MnO 3 , provides a new idea for uncooled bolometer/night vision. Graphical Abstract
研究领域:
材料科学
·
物理学
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DOI
高影响因子
Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 42
·15112-15120
·
IF 7.393
Wei Tang,Chuandong Zuo,Yingkui Li,Chaoyang Ma,Xuanyi Yuan,Zicheng Wen,Yongge Cao
Owing to the impact of robust thermal quenching, lanthanide-based luminescence thermometer operation can usually only be achieved within a comparatively small temperature scope (ambient temperature to 800 K). Here, this study presents a method for addressing the mentioned limits, and a luminescence thermometer with an ultra-wide temperature range has been achieved, which adopted Pr3+-doped Ba(Zr0.16Mg0.28Ta0.56)O3 transparent ceramic to be the optical temperature probe. Based on the high luminescence intensity and excellent thermal stability of the 3P0–3F2 hypersensitive transition of Pr3+ in Ba(Zr0.16Mg0.28Ta0.56)O3 transparent ceramic, the intensity ratio of the emissions at 624 nm and 649 nm was employed for temperature sensing in an ultra-wide range (293–873 K), and the maximal relative sensitivity reached 1.05% K−1, outperforming most existing luminescence temperature measurement transparent ceramics. Furthermore, in Pr3+-doped Ba(Zr0.16Mg0.28Ta0.56)O3 transparent ceramic, the lifetime of the 3P0–3H4 transition also exhibits prominent optical thermometry performance (303–873 K). The results presented in this work may be of high significance for the design of novel ratiometric/lifetime dual-mode optical temperature sensors in the high-temperature measurement field.
研究领域:
材料科学
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光学工程
·
温度测量技术
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DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Quanhui Zhang,Naikun Sun,Kang Zhao,Meiling Li,Qin Dai,Xinguo Zhao,Juan Cheng,Jiaohong Huang
Magnetic refrigeration in the liquid-helium temperature region plays a significant role in many technological fields. In this work, the crystal structure, magnetic properties, and magnetocaloric effect (MCE) of commercial Yb 2 O 3 and a series of (Yb 1-x Ho x ) 2 O 3 (x = 0, 0.1, 0.2) compounds prepared by a feasible high-energy ball milling method were systematically investigated. The crystallography results demonstrate that these Yb 2 O 3 -based compounds have a cubic bixbyite structure with space group Ia 3 ¯ , and the lattice constant increases with the increase of Ho 3+ ions content. Commercial Yb 2 O 3 shows antiferromagnetic (AFM) ordering at 2.35 K, and ball-milled (Yb 1-x Ho x ) 2 O 3 (x = 0, 0.1, 0.2) compounds have lower AFM ordering temperatures of RE 3+ moments of 2.30 K, 2.15 K and below 2 K for x = 0, x = 0.1 and x = 0.2 samples, respectively. Thermomagnetic behavior under high magnetic fields exhibited the existence of ferromagnetic (FM) correlation in these compounds, and a high magnetic field could induce an AFM to FM transition. The magnetization of Yb 2 O 3 increases with the increase of Ho 3+ ions content due to the increase of the effective magnetic moments. The maximum magnetic-entropy change Δ S M and relative cooling power RCP of (Yb 0.8 Ho 0.2 ) 2 O 3 are 11.1J/kg·K and 123.2 J/kg, respectively under 5 T, which are 19.4 % and 67.6 % larger than those of commercial Yb 2 O 3 . The (Yb 1-x Ho x ) 2 O 3 (x = 0, 0.1, 0.2) compounds have a large MCE under moderate magnetic field changes and there is no thermal and magnetic hysteresis, which is beneficial for application as a promising refrigerant near the liquid-helium temperature range.
研究领域:
材料科学
·
低温物理
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DOI
高影响因子
Sustainable Materials and Technologies
·
2025
·
IF 9.2
Yingzhi Meng,Zhaojie Wang,Silin Tang,Xiang Niu,Yuleng Jiang,Xu Li,Hongfang Zhang,Dingyuan Wang,Yisong Bai,Biaolin Peng,Xue Chen,Sheng-Guo Lu,Qingqing Ke,Laijun Liu
Achieving high-performance electrocaloric (ECE) cooling technology to replace traditional compressor refrigeration can significantly alleviate environmental pollution . However, attaining both a large ECE and an ultra-wide working temperature range near ambient temperature remains challenging. Herein, we report a high-entropy strategy for obtaining high-performance ECE by constructing a binary system of (1- x )Ba 0.9 Ca 0.1 TiO 3 - x BaTa 0.2 Nb 0.2 Sc 0.2 In 0.2 Hf 0.2 O 3 . The ECE properties are significantly enhanced by the outstanding ferroelectric properties of the introduced high-entropy component (BaTa 0.2 Nb 0.2 Sc 0.2 In 0.2 Hf 0.2 O 3 ). Our results demonstrate a large ECE of Δ T max = 1.77 K and an ultra-wide working temperature range of 114 K (Δ T > 85 % Δ T max ) near room temperature in the x = 0.1 components. This approach can be applied broadly and greatly expands the range of candidate materials with high-performance ECE in lead-free systems.
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高影响因子
Advanced Materials Technologies
·
2022
·Vol. 7
·期 10
·2101740
·
IF 8.856
Lianjia Zhao,Xiyao Fu,Hao Xu,Yiqiang Zheng,Wei Han,Lili Wang
Temperature is a basic physical quantity that is essential to life and productivity. However, continuously and efficiently monitoring a full range of temperatures remains a serious challenge. Herein, a full-range (−20 to 100 °C) flexible temperature sensor is designed using Ti 3 C 2 T x MXene as an active conductive skeleton and sodium alginate hydrogel as a heat-sensitive coating layer. The sensor exhibits accurate and stable temperature response across the entire range, with a sensitivity of up to 3244% °C −1 . Moreover, it not only dynamically detects liquid nitrogen, but also effectively senses gradually approaching objects within a certain range. Lastly, a temperature monitoring system based on the sensor realizes the perfect monitoring of a cold-storage model. This work will inject new vitality into the development of temperature sensors.
研究领域:
材料科学
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传感器技术
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生物医学工程
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DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 12
·1680
·
IF 4.7
Hui Li,Changmiao Huang,Zixuan Teng,Yushu Luo,Chaocan Zhang,Lili Wu,Wenchao Huang,Tingting Zhao,Lijie Dong,Wanyu Chen
Zinc-ion batteries are promising candidates for large-scale energy storage. The side reactions of the hydrogen evolution reaction (HER) and zinc dendrite growth are major challenges for developing high-performance zinc-ion batteries. In this paper, a supramolecular gel electrolyte (BLO-ILZE) was self-assembled in an ionic liquid (EMIMBF4) with zinc tetrafluoroborate (Zn(BF4)2) on the separator in situ to obtain a gel electrolyte used in zinc-ion batteries. BLO-ILZE is demonstrated to significantly enhance conductivity over a broad temperature range between −70 and 100 °C. Interestingly, through testing and fitting, it is found that the supramolecular gel electrolyte satisfies the liquid state law over a wide temperature range, and even achieves high conductivity (2.12 mS cm−1) at −40 °C. It is equivalent to the conductivity of aqueous zinc-ion batteries (ZnSO4/H2O) at −10 °C, which is 2.33 mS cm−1. Moreover, the supramolecular gel electrolyte can effectively inhibit the HER, thus exhibiting a longer lifetime in Zn/Zn cells for 3470 h at 1 mA cm−2compared to the aqueous zinc-ion batteries with the Zn(BF4)2aqueous electrolyte (400 h at 1 mA cm−2). The assembled V2O5/BLO-ILZE/Zn full cells also showed cycling performance, with 5000 cycles at 0.5 mA g−1at room temperature, a capacity of 98%, and a coulombic efficiency of about 100%.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2025
·
IF 3.3
Xuetong He,Lu Tian,Jianjian Gong,Zhaojun Mo,Xinqiang Gao,Guodong Liu
The global helium shortage and escalating costs in cryogenic engineering have intensified demands for helium-free refrigeration technologies. Adiabatic demagnetization refrigeration (ADR) based on the magnetocaloric effect (MCE) presents a viable solution, with its efficacy fundamentally dependent on advanced magnetocaloric materials. Here we present the successful synthesis of a novel gadolinium garnet Gd3Te2Li3O12 through solid-state reaction, which crystallizes in the cubic Ia-3d space group. The integration of magnetic characterization results with density functional theory (DFT) calculations establishes Gd3Te2Li3O12 as an antiferromagnetic compound exhibiting ultra-low magnetic ordering below 0.4 K. A comprehensive evaluation of the sub-kelvin magnetocaloric parameters demonstrates advantageous characteristics compared to commercial gadolinium gallium garnet (GGG) benchmarks, featuring both reduced magnetic ordering temperature and optimized entropy variation in the sub-Kelvin regime. These metrics position Gd3Te2Li3O12 as a prime candidate for sub-Kelvin ADR systems, while the observed geometrically frustrated magnetic sublattice configuration suggests new design principles for next generation magnetocaloric materials.
研究领域:
材料科学
·
低温物理
·
凝聚态物理
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Yanzhou Lu,Xiaofan Sun,Min Zhao,Shulin Jiao,Dong Li,Peng Chen,Wentao Zhang,Kongmeng Ye,Libo Xu,Qi You,Hong-Ling Cai,XiaoShan Wu
The electrocaloric effect (ECE) is a novel technology that offers high efficiency and environmental friendliness, making it suitable for solid-state refrigeration applications. Among the extensively studied ECE materials, lead scandium tantalate (PST) stands out for its excellent performance. However, its applications are restricted by its narrow working temperature range. To overcome this limitation, we explore the enhancement of the ECE through zirconium ion doping. We synthesized PbSc0.5–0.5xTa0.5–0.5xZrxO3 samples (x = 0, 0.025, 0.05, 0.075). The introduction of zirconium ions led to an increase in the Curie temperature from 28.9 °C (x = 0) to 55.5 °C (x = 0.075). Additionally, the relaxation factor γ of the ceramics increased from 1.40 (x = 0) to 1.59 (x = 0.075). The temperature span (Tspan) exhibited a rising trend with increasing x, reaching 10.9 K at x = 0.075. The maximum temperature change (ΔTmax) was observed at x = 0.025, with a value of 1.94 K. X-ray diffraction (XRD) patterns revealed that zirconium ion doping influenced the B-site ordering degree, thereby regulating the ECE. To further validate the results, we employed direct measurements and thermodynamic calculations. Overall, the regulation of ionic ordering through zirconium doping effectively enhances the ECE performance. These findings contribute to the development of advanced materials for solid-state refrigeration technologies.
研究领域:
材料科学
·
固体物理
·
制冷技术
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·Vol. 49
·期 2
·1846-1854
·
IF 5.532
Xinkun Liu,Ying Dai,Xinmei Pei,Wen Chen
The electrocaloric (EC) effect cooling technique of environmentally friendly lead-free thin film materials driven by electric fields has recently gained tremendous attention due to the urgent demand for microelectronic and integrated circuit refrigeration devices. However, the widespread use of lead-free materials in EC devices is seriously hindered due to the small electrocaloric temperature change (ΔT) within a narrow operation temperature span (T span ) near room temperature. Here, lead-free Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9-x Sn x O 3 (BCZT-xSn, 0 ≤ x ≤ 0.03) thin films were prepared on substrates (Pt/Ti/SiO 2 /Si) via a sol-gel route. The BCZT-0.02Sn thin film presents an excellent EC effect (ΔT = 32.74 K, ΔS = 37.18 J kg −1 K −1 ) and large EC strength (ΔT/ΔE = 0.033 K cm kV −1 , ΔS/ΔE = 0.037 J cm K −1 kg −1 kV −1 ) over a wide T span (∼26 K) under 1000 kV cm −1 near room temperature. The giant ΔT is mainly attributed to the emergence of an intermediate O phase and the formation of a multiphase (R, O and T phases) coexistence structure at room temperature, while the diffuse phase transition behavior is responsible for the wide T span . Our study provides a new idea for developing environment-friendly EC materials with an excellent room-temperature ΔT over a broad operational temperature region.
研究领域:
材料科学
·
功能材料
·
固态物理
·
环境友好材料
·
制冷技术
✓ 已验证
DOI
高影响因子
Energy & Environmental Science
·
2025
·Vol. 18
·期 9
·4362-4372
·
IF 30.8
Shengyao Luo,Mengqi Wu,Said Amzil,Tonghui Xu,Qing Ming,Lei Zhang,Jie Gao,Shuang Tian,Donghai Wang,Yisen Qian,Ya-Jun Cheng,Yonggao Xia
The combination of high-nickel cathodes with lithium metal anodes is widely considered a promising solution to alleviate range anxiety. However, challenges such as limited fast-charging capacity and rapid degradation persist when using carbonate-based electrolytes. While many researchers predominantly focus on solvation structures, we have strategically tailored the electrolyte formulation by employing isopropyl acetate as the primary solvent, evidenced by interfacial interactions. Compared to n-propyl acetate, isopropyl acetate reduced the interaction with the electrode surface, promoted tighter adsorption of the electrolyte ion network within the inner Helmholtz layer, and ultimately enhanced the dynamic stability of the lithium metal interface. In Li‖NCM811 cells, this electrolyte demonstrates a 4.5 V cutoff and sustains 88.6% capacity retention over 200 cycles at a high rate of 15C. Additionally, this electrolyte demonstrates stable cycling performance at elevated rates of 1C and 5C at temperatures of 60 °C and −20 °C, respectively, while maintaining stability even at a rate of 10C under poor electrolyte conditions with thin lithium layers, indicating significant application potential. These studies reveal that the electrolyte distribution at the electrode interface affects the electrochemical process and the formation of the electrode–electrolyte interphase significantly, offering new ideas for future electrolyte research and design.
研究领域:
电化学
·
储能技术
·
材料科学
·
电池技术
·
化学工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yingjie Niu,Ziqi Wang,Zhenxiang Xiong,Yuanyuan Tan,Zhijian Meng,Dejin Yan,Hui Cheng,Chenglin Yi,Kaifu Zhang
Temperature sensors play a vital role in fields such as food safety, medical diagnostics, and aerospace. However, the development of conformal temperature sensors with high sensitivity, low cost, broad detection range, and reliable performance under extreme conditions remains a significant challenge due to limitations in materials and fabrication technologies. In this study, we synthesized titanium carbide/silver (MXene/Ag) nanocomposites through electrostatic adsorption and in-situ self-reduction, and formulated a hybrid ink suitable for aerosol jet printing (AJP). The MXene/Ag-Ag-0.28 % ink, prepared with the optimal MXene/Ag and Ag mass ratio, demonstrated outstanding printability with a resolution of up to 10 μm, along with excellent electrical conductivity and mechanical durability. The printed traces achieved a conductivity as high as 2.32 × 10 7 S/m, representing a 56 % improvement over traces printed with Ag ink. Furthermore, the resistance of the printed traces changed by only 2.8 % after 1000 bending cycles, which is 3.22 times more stable than Ag traces. In addition, the printed sensors exhibited a wide temperature detection range from −50 °C to 270 °C, with a response delay as short as 90 ms and a temperature coefficient of resistance (TCR) as high as 3.03 × 10 −3 /°C at 30 °C, which is 24 % higher than that of pure Ag ink. The sensor also demonstrated reliable responsiveness under extreme conditions such as open flame and exposure to liquid nitrogen. Moreover, high-quality conformal temperature sensors were successfully fabricated on a variety of complex curved surfaces, highlighting the advanced manufacturing capabilities of AJP. Notably, conformal sensors were also integrated onto the surface of a turning tool for real-time temperature monitoring during the machining of carbon fiber reinforced polymer (CFRP). These results offer valuable insights into the potential of AJP technology for fabricating high-performance, conformal electronic sensors.
研究领域:
材料科学
·
生物医学工程
·
微纳制造
·
传感技术
·
转化医学
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-14
·
IF 15.7
Gu Rong,Zhang Da,Xu Shengtao,Guo Xiaoyu,Xiao Yuan,Sheng Zhimeng,Xu Qunjie,Xu Jinting,Zhu Sheng,Liao Kexuan,Gong Shuaiqi,Shi Penghui,Min YuLin
Safe electrolytes operable over a wide temperature range are essential for lithium metal batteries, offering high redox interfacial stability, fast ion transport kinetics, and inherent safety. However, conventional electrolytes rarely achieve these characteristics simultaneously, typically sacrificing one to improve another. In this work, an ether-based thermoresponsive electrolyte is developed, in which the Li + solvation structure varies with temperature and facilitates the formation of a polycrystalline electrode/electrolyte interface, enabling the desired properties under conventional salt concentrations. The solvation sheath is reconfigured by 1,3,5-trioxane, which promotes anion dissociation and enhances charge-transfer kinetics. Additionally, 1,3,5-trioxane triggers a cationic ring-opening polymerization of tetrahydrofuran at 60 °C, yielding oxidation-resistant ether-based polymers that improve high-temperature stability and safety. As a result, Li||LiNi 0.8 Co 0.1 Mn 0.1 O 2 cells utilizing this electrolyte operate reliably across a broad temperature window (−60 to 60 °C). Furthermore, a practical 1.5 Ah Li|| Ni 0.8 Co 0.1 Mn 0.1 O 2 pouch cell delivers a capacity retention of 74.7% after 60 cycles at −40 °C and 0.05 C (20 h charge/discharge), with a specific energy of 317.1 Wh kg −1 (including packaging foil).
研究领域:
储能技术
·
材料科学
·
电化学
·
高分子化学
·
电池技术
✓ 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）