JOURNAL OF POWER SOURCES
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2018
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IF 6.945
Zhaomin Wang,Yong Cheng,Qian Li,Limin Chang,Limin Wang
Metallic Sb is deemed as a promising anode material for lithium ion batteries (LIBs) due to its flat voltage platform and high security. Nevertheless, the limited capacity restricts its large-scale application. Therefore, a simple and effective method to explore novel antimony trioxide with high capacity used as anode material for LIBs is imperative. In this work, we report a facile and efficient strategy to fabricate 1D hollow Sb 2 O 3 @TiO 2 composites by using the Kirkendall effect . When used as an anode material for LIBs, the optimal Sb 2 O 3 @TiO 2 composite displays a high reversible discharge capacity of 593 mAh g −1 at a current density of 100 mA g −1 after 100 cycles and a relatively superior discharge capacity of 439 mAh g −1 at a current density of 500 mA g −1 even after 600 cycles. In addition, a reversible discharge capacity of 334 mAh g −1 can also be obtained even at a current density of 2000 mA g −1 . The excellent cycling stability and rate performance of the Sb 2 O 3 @TiO 2 composite can be attributed to the synergistic effect of TiO 2 shell and hollow structure of Sb 2 O 3 , both of which can effectively buffer the volume expansion and maintain the integrity of the electrode during the repeated charge-discharge cycles.
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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无机化学
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JOURNAL OF POLYMER RESEARCH
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2026
·Vol. 33
·期 8
·333
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IF 3.5
Zhang Xinxing,Ma Luxiang
A novel Schiff Base as a flame-retardant monomer (FSB, 5-((3,5-bis(trifluoromethyl) benzylidene) amino) isophthalic acid) with -CF 3 was designed and used to synthesize FSB n PETs (PET copolyester) by copolymerization, which shows good flame retardancy and anti-dripping. The introduction of the –CF₃ group increases the cyclization temperature of the FSB Schiff base unit by suppressing the cyclization reaction through its strong electron-withdrawing effect, which is 350–398 °C, higher than 250–348 °C from the PET copolyesters modified by Schiff Base without -CF 3 , indicating that FSB n PETs exhibits a broadened processing temperature window. And FSB also increased the glass transition temperature (Tg), reduced the melting temperature (Tm) and the crystallizability of FSB n PETs. FSB n PETs possessed good flame retardancy and anti-dripping properties, FSB 10 PET (7.4 mol% of FSB) owned V-0 level of UL-94 and 31% value of LOI without dripping phenomenon. The bond of -C-F had not broken into the air phase to make an obvious influence on the flame retardancy property of FSB n PETs, whose flame retardancy mechanism is still type of the condense flame retardancy. Additionally, in the new preparation process for FSB n PETs, the dicarboxylic acid structure of FSB could speed up the condensation polymerization between the BHET precursors, which could save 50% of the preparation time, showing an exciting economic advantage. The -CF₃ modified Schiff base (FSB) is an effective modifier for PET copolyesters, offering improved processing performance and good flame-retardant properties.
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CERAMICS INTERNATIONAL
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2026
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IF 6
Yutao Zheng,Shualing Ma,Min Lian,Jiujun Zhu,Zhengchun Hu,Peng Du
A series of Sb 3+ -doped Cs 2 NaScCl 6 double perovskites were synthesized to realize bifunctional optical sensing. Upon 337 nm excitation, the designed compounds emitted intense blue emission, whose intensity was dependent on dopant content and the involved concentration quenching mechanism was caused by electric dipole-dipole interaction. The impact of temperature on the luminescence properties of the final products was investigated, implying their good thermal stability. Through analyzing the response of lifetime to temperature, the thermometric properties of the resultant double perovskites were discussed and the maximum relative sensitivity was 0.32% K −1 , with a broad operating range of 303-623 K. Moreover, in-situ high-pressure X-ray diffraction was tested to explore the structural stability of the studied samples. With elevating pressure, a significant spectral blue-shift was observed in the resulting compounds, enabling their potentials in optical manometry. According to the pressure-dependent emission band centroid, the manometric features of the developed double perovskites were characterized, in which its maximum pressure sensitivity was 10.13 nm GPa −1 with a working pressure range of 0.27-6.69 GPa. Our findings demonstrate that the luminescence properties of Sb 3+ -doped Cs 2 NaScCl 6 double perovskites can be efficiently modulated by extreme condition, endowing their applications in optical temperature and pressure sensing.
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Journal of Macromolecular Science Part A-Pure and Applied Chemistry
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2026
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IF 2.4
Zhao Zhenqian,Gao Shengli,Wang Yuhe,Xingze Li,Lesly Dasilva Wandji Djouonkep
A fully bio-based aromatic diester monomer, dimethyl 2,2′-((1,4-phenylenebis(methylene))bis(oxy))dibenzoate (PMBD), was synthesized from renewable methyl salicylate and 1,4-bis(chloromethyl)benzene and used to prepare copolyesters for energy-absorbing Shibata-type coupler buffers. Two copolyesters based on 1,3-propanediol (H1) or 1,7-heptanediol (H2) were obtained via melt polycondensation of PMBD with 1,4-cyclohexanedimethanol (CHDM). The materials exhibited moderate molecular weights (Mw = 3.96–4.28 × 104 g/mol, Đ = 2.2) and unimodal distributions. Structural characterization (FTIR, 1H NMR) confirmed successful incorporation of all monomers. H1 showed superior thermomechanical performance (Tg= 76 °C, Tm= 185 °C, Td,5% = 348 °C, modulus 1.63 GPa, yield strength 57 MPa, elongation 305%) compared to H2 (Tg = 58 °C, Tm = 170 °C, modulus 1.02 GPa, yield strength 50 MPa, elongation 228%), demonstrating the effect of diol chain length on stiffness and ductility. Both copolymers exhibited yielding and strain hardening with mechanical performance comparable to PET. Soil burial tests showed modest degradation (2.75%–4.21% mass loss over 30 wk), with low ecotoxicity (>80% survival). These results highlight PMBD-based copolyesters as promising sustainable alternatives to PET with tunable properties.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 22
·1786
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IF 3.2
Li Qing,Guo Kaixin,Liu Bowang,Zhang Xin,Cui Ruirui,Wang Xu,Deng Chaoyong
Lead-free halide double perovskites are attractive luminescent materials owing to their low toxicity and structural stability, but their white-light performance is often limited by weak long-wavelength emission and inefficient energy regulation. Herein, Sb 3+ single-doped and Sb 3+ , Mn 2+ co-doped Cs 2 NaLuCl 6 phosphors were synthesized by a hydrothermal method. Sb 3+ introduces broadband blue emission associated with localized excited states, while Mn 2+ incorporation produces orange-red emission through the 4 T 1 → 6 A 1 transition. The coexistence of these two emission components enables tunable dual-emission and single-host white-light generation. Time-resolved PL analysis confirms the shortening of the Sb 3+ -related lifetime after Mn 2+ incorporation, and the energy-transfer efficiency reaches 31.25% for the optimized Cs 2 NaLuCl 6 : 0.005Sb 3+ , 0.05Mn 2+ sample. Temperature-dependent PL and Arrhenius analysis reveal improved thermal-quenching resistance, with the activation energy increasing from 0.13777 to 0.21293 eV. The optimized phosphor-based WLED exhibits neutral-white emission with CIE coordinates of (0.3287, 0.3565), a CCT of 5688 K, and a CRI of 72.4. These results provide insight into emission regulation and energy-transfer dynamics in Sb 3+ , Mn 2+ co-doped Cs 2 NaLuCl 6 phosphors for proof-of-concept white-light and optical anti-counterfeiting applications.
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Materials Today Chemistry
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2026
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IF 7.4
Qing Li,Bowang Liu,Kaixin Guo,Ruirui Cui,Xu Wang,Chaoyong Deng
Mn 2+ ,Sb 3+ co-doping enables excitation-dependent afterglow in CsCdCl 3 phosphors. • Mn 2+ ,Sb 3+ co-doping prolongs CsCdCl 3 afterglow compared with singly doped samples. • Multi-dimensional optical encoding based on excitation- and time-dependent afterglow enables dynamic anti-counterfeiting. Excitation-dependent persistent luminescence materials attract growing interest for optical encryption, as emission colour and decay behaviour enable multi-parameter information encoding. Achieving high brightness, stable afterglow over a wide temperature range, and controllable emission output within a single material system remains challenging. In this work, CsCdCl 3 : Mn 2+ , Sb 3+ phosphors are synthesized via a room-temperature solution method, which offers a simple and scalable route. The materials exhibit distinct afterglow responses under ultraviolet excitation at 254, 310, and 365 nm. Sb 3+ exhibit cyan emission originating from the 3 P 1 → 1 S 0 transition, while Mn 2+ gives rise to orange-red emission ( 4 T 1 ( 4 G) → 6 A 1 ( 6 S)), sensitized by energy transfer from Sb 3+ to Mn 2+ . The relative contributions of these emission centres vary with excitation wavelength. Excitation-dependent afterglow decay behaviour is therefore achieved. Thermoluminescence analysis reveals a quasi-continuous trap distribution. This distribution supports stable afterglow over a wide temperature range. It also determines the decay behaviour. Excitation-dependent trap filling causes variations in afterglow lifetime. Time-resolved luminescence output is achieved. These properties enable dynamic optical anti-counterfeiting. Information is encoded and decoded through excitation wavelength, emission colour, and afterglow duration. Multi-dimensional and time-dependent data display is realised. This work offers great potential for designing persistent luminescence materials for advanced optical encryption applications.
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Nature Communications
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2026
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IF 18.1
Li Zexin,Gou Genchang,Xu Xiang,Wang Haoyun,Liu Teng,Luo Hao,Wu Jinsong,Liu Kailang,Gao Liang,Zhai Tianyou,Zhou Xing
Exploring dielectrics with high gate capacitance and artificial tailoring of electronic states is highly desirable for the development of 2D electronics. Here, we report the synthesis of a single-crystalline ionic dielectric Sb 4 O 5 Cl 2 with aligned ionic channels, achieving a dielectric constant of 23.3 (at a thickness of ~ 25 nm) and non-volatile programmable regulation of the ionic migration. The fabricated 2D MoS 2 transistors display on/off ratios up to 10 9 , leakage currents down to 10 −14 A, and mobility of 33.4 cm 2 V −1 s −1 . Oriented ionic channels facilitate efficient and controllable migration of Cl − ions, thus realizing a non-structural-damage and reconfigurable transition between a quasi-metallic and semiconducting state in MoS 2 , with a retention time exceeding 3000 s. During 100 cycles of state transitions, the quasi-metallic state exhibits a conductivity of 10 −5 S, which is 10 3 times that of the semiconducting state. Bio-inspired ionic channel further allows neuromorphic devices to integrate image storage, processing, and recognition capabilities, achieving a recognition accuracy improvement from 80.7% to 90.9% within just 5 training epochs through non-volatile preprocessing lasting over 300 s. Our study highlights the significant potential of this single-crystal ionic dielectric as a promising platform for fundamental research on electronic state modulation and advanced electronics.
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PubMed
高影响因子
Advanced Optical Materials
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2026
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IF 7.2
Yujia Peng,Zhimin Yu,Liang Zhao,Yuhang Zhang,Hai Lin
The demand for advanced luminescent perovskites with tunable emission and excellent thermal stability is rapidly growing in secure optical encryption and high-precision temperature sensing. Herein, we develop a multifunctional Cs 2 NaLuCl 6 : Sb 3+ /Ho 3+ /Yb 3+ (CNLC: Sb-Ho-Yb) perovskite that achieves coordinated control of color modulation and thermal robustness. By enabling efficient Sb 3+ →Ho 3+ energy transfer in downshifting (DS) and simultaneously suppressing Ho 3+ nonradiative losses in upconversion (UC), the Sb 3+ -doped strategy significantly enhances both Ho 3+ DS and Ho 3+ -Yb 3+ UC emissions, serving as a foundation for color-coded encryption. The CNLC: Sb-Ho-Yb system further enables dual-mode thermometry by exploiting the contrasting thermal behaviors of its UC (enhanced) and DS (quenched) emissions, allowing for temperature sensing tailored to the specific thermal responses of the respective luminescence mode through two independent fluorescence intensity ratio (FIR) methodologies. Specifically, excitation-wavelength-controlled color switching enables high-security and multi-dimensional optical encryption with strong anti-interference capability, while the high luminescence sensitivity and reversible thermal response ensure high-precision temperature sensing with excellent signal fidelity. Overall, this work establishes a new design paradigm that bridges thermal stability and tunable luminescence in perovskite systems, paving the way toward next-generation intelligent optical encryption and reliable thermal sensing technologies.
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INORGANIC CHEMISTRY
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2026
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IF 4.6
Mingyang Gu,Wenjun Fan,Haiyou Liu,Rui Ma,Junhao Ma,Rongxing He,Lei Zhou,Ming Li
Organic–inorganic hybrid metal halides (OIHMHs) have garnered significant attention for their exceptional photophysical properties and structural diversity. Zero-dimensional (0D) metal halides are particularly promising for anticounterfeiting and solid-state lighting (SSL) due to their outstanding optical properties and stability. However, achieving precise control over the synthesis of low-dimensional OIHMHs (LD-OIHMHs) remains challenging. This study reports the controlled synthesis of Cd2+-based OIHMHs, achieving structural dimensionality reduction from 1D to 0D through the strategic embedding of hydrated protons. The 0D structure exhibits an enhanced quantum confinement effect, leading to highly efficient luminescence. Furthermore, Sb3+ doping was employed to incorporate optically active centers, resulting in broadband yellow photoluminescence with a large Stokes shift originating from triplet self-trapped excitons in Sb-centered octahedra. The different luminescence properties of these Cd2+-based materials were successfully applied in anticounterfeiting. Additionally, a high-performance white light-emitting diode (WLED) was fabricated using the 0D 10% Sb3+-doped Cd2+-based material as a phosphor, achieving a color rendering index of 90.8 and a luminous efficiency of 43 lm/W, confirming its potential for SSL applications. This work demonstrates an effective strategy for the dimensional and optical engineering of LD-OIHMHs.
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Journal of the American Chemical Society
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2026
·
IF 16.6
Dongying Fu,Qi Wang,Shufang Wu,Ruifang Zhao,Shuang Chen,Wenjuan Jia,Ziyang Wu,Yueyue He,Xiaofei Li,Xiaorong Mao,Jiangtao Xu,Da-Wei Fu,Junhua Luo
Lead-free molecular ferroelectrics are expected to promote the development of green electronics technology due to their environmental friendliness and functional diversity. Nevertheless, the limited variety, low Curie temperature (Tc), and uniaxial characteristics pose significant obstacles in their application. Herein, on the basis of (PMA)3MBr6 (PMA+ is benzylammonium, and M is Bi3+ or Sb3+), we constructed a series of lead-free metal halide hybrids (PMA)2(A)MBr6 (A is dimethylammonium (DMA+), formamidinium (FA+), or guanidinium (GA+)) using a cation mixing strategy. The cation mixing strategy introduces cation−π interactions and effectively regulates the hydrogen bonding network in the structure. The different strengths of noncovalent interactions in the structures lead to differences in the phase transition temperature and ferroelectricity of (PMA)2(A)MBr6. In (PMA)2(GA)MBr6 and (PMA)2(FA)MBr6, the excessively strong hydrogen bond network and cation−π interactions result in the system lacking the necessary kinetic degrees of freedom to achieve ferroelectric inversion. It is worth noting that moderate noncovalent interactions can ensure spontaneous polarization below the Curie temperature (Tc) and provide necessary dynamic channels for the flipping of polar units, thus successfully achieving ferroelectricity in (PMA)2(DMA)MBr6 (3̅mFm). The results revealed that in the design of molecular ferroelectrics, a delicate balance needs to be struck between the different strengths of noncovalent interactions. This finding provides a significant and effective pathway to design high-Tc and multiaxial environmentally friendly ferroelectrics.
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IEEE SENSORS JOURNAL
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2026
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IF 4.5
Weiwei Qin,Xuefeng Hu,Ming Zhou,Jilei Yang,Jiaming Liu,Peipei Li,Xiaoliang Wang,Liping Tan,Yali Bi,Wenjuan Yu,Wei Zhang
The detection of hydrogen-methane (H2-CH4) in exhaled breath takes on paramount importance for small intestinal bacterial overgrowth (SIBO) diagnosis. However, the concentrations of H2 and CH4 associated with SIBO are significantly lower, reaching only 20 and 12 ppm, respectively. Furthermore, the detection of these gases can be compromised by the presence of various volatile organic compounds (VOCs) and relative humidity (RH) in exhaled breath. In this study, a low-powered system with three high-performance tin dioxide (SnO2)-based micro-electro-mechanical system (MEMS) gas sensors for H2-CH4-VOCs detection was modified by magnetron sputtering deposition and coating, which are named as Pd/SnO2-M (M means magnetron), Pd/SnO2-C (C means coating), and SnO2-D (D means multiple doping), respectively. Particularly, the Pd/SnO2-M sensor shows excellent selectivity, high sensitivity, and low detection limitation (down to 0.033 ppm) toward H2, which is attributed to the compact grains of the film and the Pd catalysis for the dissociation of H2 molecule into two active hydrogen atoms better than other gases. In addition, the Pd/SnO2-C sensor exhibits high sensitivity and low detection limitation toward H2 (down to 0.186 ppm) and CH4 (down to 1.1 ppm) since doped Pd also gives rise to adsorbed oxygen species (Oads) above the SnO2 surface besides its catalysis. Moreover, the assembled MEMS sensor array system demonstrates gas recognition capability based on linear discriminant analysis (LDA) under controlled single-gas conditions in high-humidity environments. Then, the as-modified MEMS sensor array system is a promising platform for H2-CH4 detection.
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CERAMICS INTERNATIONAL
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2026
·
IF 6
Runhan Chen,Wei Xiao,Zhengran Chen,Wei Peng,Ruihong Liang
High-temperature piezoelectric sensors for measurement-while-drilling (MWD) applications demand materials that simultaneously possess high piezoelectric sensitivity, low dielectric loss, and exceptional thermal stability. In this work, “hard” Mn-doped 0.02 Pb(Sb 1/2 Nb 1/2 )O 3 -(0.98- x )PbZrO 3 - x PbTiO 3 (PSN-PZ- x PT) ceramics were systematically designed. While the introduction of Mn 2+ acceptor ions effectively minimizes dielectric loss through domain wall pinning, it inevitably shifts the morphotropic phase boundary (MPB). Meanwhile, for compositions near the MPB, the temperature dependence of the resonance frequency is significantly influenced by the Zr/Ti ratio. By finely tuning the Zr/Ti ratio in the vicinity of the MPB, materials exhibiting simultaneous high piezoelectric performance and excellent thermal stability were obtained. The composition with x = 0.465, located at the MPB, exhibited an excellent combination of properties: d 33 ∼ 320 pC/N, ε r ∼971, k p ∼0.63, T C ∼354 °C, tanδ ∼0.30%, and Q m ∼452. Remarkably, this composition demonstrated superior high-temperature stability up to 200 °C, with the resonance frequency variation (Δ f r / f r25 °C ) maintained within 2.45% and electromechanical coupling fluctuation (Δ k p / k p25 °C ) within 4.62%. These results demonstrate that the optimized Mn-doped PSN-PZT ceramics are promising candidates for high-power, high-temperature applications.
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