ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yibo Zhang,Kun Cao,Ming Yang,Hui Hong,Yifan Shen,Haosong Ning,Junmin Xia,Shufen Chen
Sn-based perovskite solar cells (Sn-PSCs) have received increasing attention due to their nontoxicity and potentially high efficiency. However, the poor stability of Sn2+ ions remains a major problem in achieving stable and efficient Sn-PSCs. Herein, an in situ polymerization strategy using allyl thiourea and ethylene glycol dimethacrylate as cross-linking agents in the Sn-based perovskite precursor is proposed to improve the device performance of Sn-PSCs. The C═S and N–H bonds of the cross-linkers are able to coordinate with SnI2 and inhibit the oxidation of Sn2+, thereby reducing defect density and improving the stability of Sn-based perovskite films. The high quality of the perovskite film induced by the in situ polymerization strategy delivers an improved power conversion efficiency (PCE) from 7.50 to 9.22%. More importantly, the unpackaged device with cross-linkers maintained more than 70% of the initial PCE after 150 h of AM 1.5G light soaking in a nitrogen atmosphere and 80% of the initial PCE after 1800 h in dark conditions. This work demonstrates that the in situ polymerization strategy is an effective method to enhance the stability of Sn-based perovskite films and devices.
研究领域:
材料科学
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太阳能
·
化学
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PubMed
高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2024
·Vol. 39
·期 4
·805-813
·
IF 1.3
Xu Tianxing,Wu Jie,Li Yajuan,Xiao Hong
We synthesized size-controllable nanoparticles with homogeneous distribution of carbon and Sn/SnO 2 by a solvothermal method. The effects of different carbon content and hydrothermal time on the composition, morphology and electrochemical properties of the materials were investigated. Compared with bulk materials, nanoparticles materials not only have high specific surface area, but also can provide abundant reaction sites, thus enhancing the electrochemical activity of electrode materials. More importantly, the optimized microspheres Sn/8C-24 delivers a superior electrochemical performance, achieving a specific discharge capacity of 700.4 mAh·g −1 after 150 cycles at 0.5 A·g −1 , and the Coulomb efficiency reaches 98.65%, which is promising for anode of LIBs.
研究领域:
材料科学
·
能源存储与转换
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 7
·e70960
·
IF 4.2
Mingyang Zhao,Yupeng Jiao,Zhenfeng Tong
Sn-containing hollandite has been highlighted by recent machine learning-guided design as a promising host for radioactive cesium (Cs), yet waste form validation remains limited. Here, a Cs-bearing Sn-based hollandite series, (Ba,Cs) 1.66 (Fe,Sn) 8 O 16 , was synthesized in air by solid-state reaction, with hollandite formation at 1125°C followed by pressureless sintering at 1200°C. x-Ray diffraction confirms hollandite as the major phase across the series, with minor Ba-bearing secondary phases only at low Cs contents. Rietveld refinement reveals anisotropic lattice expansion and a tetragonal-to-monoclinic symmetry change at the Cs-rich end member, accompanied by progressive tightening of tunnel descriptors, indicating a Sn-specific Cs accommodation response distinct from many Ti-based hollandites. Chemical durability was evaluated by monolithic leaching in deionized water at 90°C. At Cs loadings up to ∼17 wt%, 7-day Cs release is comparable to representative Ti-based hollandites tested under similar conditions. Sn exhibits ultralow normalized release, while Cs and Ba show higher release without detectable degradation of the hollandite matrix. Extended 28-day interval leaching on Ba 0.8 Cs 0.86 Fe 2.46 Sn 5.54 O 16 (HS2) and Ba 0.4 Cs 1.26 Fe 2.06 Sn 5.94 O 16 (HS3) separates rapid early wash-off from slower, diffusion-controlled release. By 14–28 days, Cs and Ba leaching rates converge to ∼2–4 × 10 −2 g·m −2 ·day −1 , with effective diffusion coefficients of ∼1–2 × 10 −11 cm 2 /s and leaching indices of ∼11. Benchmarking against Ti-based hollandites places the Sn-based series within a competitive loading–durability window under a comparatively mild processing route, supporting Sn-based hollandite as a readily fabricated candidate for high-loading Cs immobilization.
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高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2014
·Vol. 161
·期 12
·H730
·
IF 2.859
Lina Xu,Ruizhuo Ouyang,Shuang Zhou,Haifeng Wen,Xin Zhang,Yang Yang,Ning Guo,Weiwei Li,Xin Hu,Zhuoyuang Yang,Lei Ouyang,Yuqing Miao
Novel Sn-Pb hybrid nanoparticle decorated mesoporous carbon (MPC) was successfully prepared on a glassy carbon electrode (GCE) and used for the anodic stripping measurements of Cd(II) via square wave Voltammetry. In the presence of MPC, the properties of Sn-Pb were dramatically improved including the ability of electron transfer, particle size and hydrophilicity, which played a significant role in achieving more preferable analytical performances of Cd(II) with Sn-Pb based sensor. After all the experimental parameters involved were carefully optimized, the proposed Sn-Pb/MPC based sensor was applied to the stripping determination of Cd(II), showing the best electrochemical behaviors by comparison with Sn, Pb and Sn-Pb modified electrodes. The synergic effect between Sn-Pb and MPC was believed to be the major factor leading to such improved electrochemical properties of Sn-Pb/MPC based sensor for Cd(II) analysis. In the concentration range of 0–140 μg L−1, the linear analytical curve for Cd(II) was achieved with correlation coefficient and detection limit calculated to be 0.9996 and 0.36 μg L−1 (S/N = 3), respectively. By using the standard addition method, Cd(II) ion in river samples was successfully determined with satisfactory recoveries higher than 100%. These results suggest that the proposed method can be applied as a simple, efficient alternative to monitor the heavy metals in water samples, compared with ICP based techniques.
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高影响因子
International Journal of Minerals Metallurgy and Materials
·
2026
·Vol. 33
·期 5
·1574-1584
·
IF 8.8
Liu Ting,Xu Hao,Liu Shuai,Cai Shixia,Wang Weimin,Song Kaikai,Hu Lina,Sui Kunyan
Lithium metal batteries have been widely used in energy storage applications owing to their high theoretical energy density. However, the unstable solid electrolyte interphase (SEI) in the batteries lead to the formation of lithium dendrites and “dead lithium”, thus affecting the safety and cycle life of the battery. To address this issue, an artificial SEI was prepared using a polymer coating strategy. The introduction of succinonitrile (SN) accelerates ion transport by promoting the dissociation of lithium salts. The solid electrolyte Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO) enhances the mechanical strength of artificial SEIs and promotes ion conduction. Furthermore, the competitive coordination between LLZTO and SN inhibits lithium anode corrosion, forming SEI rich in LiF and Li 3 N. Therefore, the lithium metal anode modified with an artificial SEI can be stably plated/stripped for more than 10000 h. The LiFePO 4 full cell assembled with the modified anode exhibited a discharge specific capacity of 133 mAh·g −1 and a capacity retention of 97% after 1000 cycles at 2 C (1 C = 170 mA·g −1 ). Notably, the anode modified with the artificial SEI exhibited excellent electrochemical performance even at low temperatures.
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高影响因子
Journal of Physical Chemistry C
·
2026
·
IF 3.4
Zhixiong Yao,An Hou,Jiawei Lin,Zhongnan Guo,Jing Zhao,Quanlin Liu
Lead-free organic–inorganic metal halides (OIMHs) with robust zero-dimensional (0D) frameworks are highly attractive for practical optoelectronic applications. Here, we propose a precursor-engineering strategy using the organic molecule C15H15N to stabilize Sn-based metal halide thin films. Four 0D OIMHs were synthesized via a solution method, namely, (C15H16N)4SnCl6, (C15H16N)2SnBr6, (C15H16N)6BiBr9·2H2O, and (C15H16N)3(C2H8N)BiBr7·H2O, all adopting 0D structures. (C15H16N)4SnCl6 exhibits excitation-dependent multichannel photoluminescence: under 370 nm excitation it shows blue–white emission, whereas 306 nm excitation yields two bands at 410 and 750 nm, indicating multiple emissive centers. Time-resolved photoluminescence and density functional theory calculations reveal distinct emissive channels from the organic cation and Sn2+ centers, evidencing excitation-controlled redistribution among singlet and triplet manifolds within the rigid 0D framework. (C15H16N)4SnCl6 shows excellent stability and optical properties, and when combined with polymers to form composite films, its excitation-dependent luminescence offers a highly promising route for information encryption.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Tingting Liang,Haolong Sun,Tingting Zhu,Daobo Tian,Sen Liang,Xiaoshan Wang
Two-dimensional (2D) MoS2 demonstrates significant potential for applications in flexible electronic sensing devices due to its unique physical and chemical properties and ultrathin layered structure. Metallic 1T phase MoS2 is inherently metastable and tends to transform into the thermodynamically stable semiconducting 2H phase. Atomic doping can regulate the crystal phase of the MoS2 and carrier concentration, and enhance the material stability. In this study, 2D metallic Sn-doped MoS2 (SnxMo1−xS2) nanosheets were successfully synthesized via a hydrothermal method. The film resistance of SnxMo1−xS2 can be precisely controlled to change by two orders of magnitude through the precise regulation of the Sn doping concentration. The Sn0.4Mo0.6S2-based temperature sensor displayed a negative temperature coefficient of resistance of −0.020 °C−1, exhibiting an 82% improvement compared with 1T MoS2. Meanwhile, the temperature-sensing performance of Sn0.4Mo0.6S2 nanosheets is superior to that of reported doped and un-doped TMDs and their composites. In addition, the TCR remained stable under different bending conditions owing to the special nanosheet structure. Therefore, the Sn0.4Mo0.6S2 sensor showed promising applicability for flexible and wearable human body temperature monitoring and activity tracking devices.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Mei Li,Zhixiang Shan,Rugeng Liu,Meng Zhang,Wei Han
The electrochemical investigation of Ce(III) was carried out on W, Sn film and liquid Sn electrodes in LiF-LiCl eutectic by a variety of electrochemical methods. It was determined that Ce(III) was reduced to metallic Ce on W electrode via a one-step three-electron transfer, which was a reversible process controlled by diffusion. The diffusion coefficient of Ce(Ⅲ) in LiF-LiCl eutectic was estimated by CV and CP, while the diffusion activation energy was calculated to be 20.86 kJ mol −1 and 20.95 kJ mol −1 , respectively. The electrochemical behavior of Ce(Ⅲ) was studied on Sn film electrode by CV and OCP. Eight alloy compounds Ce x Sn were obtained due to the underpotential deposition of Ce on the pre-deposited Sn film electrode. The activities of Ce in Ce x Sn and standard Gibbs formation energies of Ce x Sn were evaluated, respectively. Moreover, on Sn film electrode, the electrochemical extraction of Ce was performed at −1.5 V. XRD, SEM and EDS results exhibited the formation of CeSn 3 and Ce 2 Sn 5 . On liquid Sn electrode, the reduction current of Ce appeared at about −1.2 V and reached a peak at about −1.4 V. The electrochemical extracting Ce was also conducted on liquid Sn electrode at −1.3 V and CeSn 3 was obtained. The extraction rates and efficiencies of Ce on liquid Sn electrode were estimated using ICP-AES at different durations. It was found that as the extraction proceeded, the extraction rate decreased, while the extraction efficiency increased. The extraction efficiency reached over 98 % after electrolysis for 10 h.
研究领域:
冶金学
·
电化学
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高影响因子
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
·
2024
·
IF 3.1
Qinyuan Qu,Wengang Liu,Wang Zheng,Benjamin Chetelat,Qingchuan Liu,Jiubin Chen
The geological and environmental applications of tin (Sn) isotopes have been hindered by the shortcomings of chemical purification, as severe loss of Sn would occur during sample preparation (evaporation and re-dissolution) and column separation, triggering isotope measurement bias. In this study, we develop a novel and robust separation method to purify Sn from natural samples for accurate isotope measurements. The protocol is established by combining two chromatographic columns loaded with AG 1-X8 and AG 50W-X12 resins, and optimizing the sample evaporation and re-dissolution procedures. The method is proven to efficiently eliminate the main interferents such as Ag, Zn, Mo, Cd and Sb and results in low procedural blank (0.54 ± 0.21 ng, n = 3), quantitative recovery (95–102%, n = 32) and good external precision (δ120Sn of 0.02–0.04‰, in 55 measurements) for isotope measurement. The protocol is further applied to seven geological and environmental reference materials (BCR-2, BHVO-2, AGV-2, JG-2, AC-E, PACs-2 and GSS 7) and new values are reported for both odd (δ119Sn and δ117Sn) and even (δ120Sn and δ122Sn) Sn isotope ratios. This study demonstrates clearly the potential application of our method for studying the geochemical behaviors of Sn and its isotopes in various aspects.
研究领域:
地球化学
·
分析化学
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高影响因子
ACS Nano
·
2025
·
IF 16
Ou Wang,Heyu Wang,Yu Tang,Zhiheng Ma,Bao-Li An,Yongmei Zhao,Xiaohong Wang,Jiaqiang Xu
Accurate detection of acetone (C3H6O) is essential for both environmental monitoring and noninvasive diabetes diagnosis. High-entropy alloys (HEAs) have been demonstrated as effective catalysts to replace noble metals for enhancing the gas-sensing performance of semiconductor metal oxides. However, HEAs tend to agglomerate at high temperatures, which severely limits their long-term stability and performance. To address this issue, a PtFeCoNiCuSn HEA was developed as a functional sensitizer for SnO2-based C3H6O sensors. The existence of Sn in the HEA structure enhances the interaction of HEA with SnO2 and prevents agglomeration under high-temperature conditions (≥300 °C), leading to improved stability and catalytic activity for C3H6O detection. The PtFeCoNiCuSn-SnO2-300 sensor exhibited increased sensitivity than its Sn-free HEA counterpart, along with shorter response and recovery times (6.5 s/10.5 s) at a working temperature of 230 °C, a clear response (Ra/Rg = 4.59@2 ppm), and a low detection limit down to 4 ppb for C3H6O. Moreover, it demonstrated stable long-term stability, with no significant response degradation (σ = 0.056) observed over a 63-day continuous test. The enhanced performance is attributed to the synergistic effects of the HEA’s multielement composition and strong metal–support interaction, which strengthens electronic interaction and the activation of surface oxygen species. This study provides a framework for enhancing the interaction between HEAs and semiconductor metal oxides to further improve the gas-sensing properties of the latter.
研究领域:
材料科学
·
气体传感技术
·
纳米催化
·
环境监测
·
糖尿病诊断
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DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Jialin Li,Jiachen Zhang,Yuhan Dong,Shen Wang,Yawen Tang,Hanjun Sun
Ruthenium (Ru)-based electrocatalysts have garnered considerable attention due to their low water dissociation barrier, exceptional H adsorption strength and relatively lower cost in platinum-group metals catalysts. while the strong oxyphilic property of Ru leads to excessive adsorption of hydroxyl species (OHad) generated from the water dissociation process. However, it remains challenging to introduce another oxophilic species to weaken the adsorption of OHad while avoiding the coverage of active sites and ensuring the subsequent re-adsorption and desorption of water. Herein, we reported an ordered Ru3Sn7 intermetallic compounds (IMCs)/acetylene black (AB) electrocatalyst. The highly ordered structure exposed abundant Ru active sites and atomically adjacent Sn oxophilic sites enable uniform distribution of both H and OH adsorption sites and preventing the coverage of Ru site. The prepared Ru3Sn7 IMCs/AB promotes interfacial water adsorption/dissociation by optimizing OH adsorption ability. As a result, Ru3Sn7 IMCs/AB catalyst delivers exceptional HER performance, achieving a low overpotential of 9 mV at 10 mA cm-2 and long-term durability over 150 hours. CO-stripping tests, in situ electrochemical Raman spectroscopy and DFT calculations revealed that synthesized ordered Ru3Sn7 IMC effectively modulates the OH adsorption and improve the adsorption/desorption of interfacial water
研究领域:
电催化
·
材料科学
·
能量转换
·
物理化学
·
纳米材料
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2025
·
IF 4.7
Xueying Xie,Siyang Yan,Weiming Zhai,Zhenlei Zhang,Liping Liu,Jiaxu Liu,Guang Xiong,Feng Liu
Sn-Beta zeolite is a versatile heterogeneous Lewis acid catalyst. Herein, we report a fluoride-free aerosol-assisted hydrothermal synthesis of plate-like Sn-Beta zeolite, which overcomes the environmental problems caused by traditional fluorinated hydrothermal method. The synthesis process, after the optimation by varying seed types, seed loadings, templating agent amounts, and crystallization times, results in the plate-like Sn-Beta zeolite with high relative crystallinity and mesoporous pore volume. Furthermore, the zeolites synthesized using this method exhibit superior catalytic performance in the Baeyer-Villiger oxidation of 2-adamantanone as compared to the sample synthesized by traditional fluoride-assisted hydrothermal method. The physicochemical characteristics of the two samples have been systematically compared. The enhancement of catalytic performance can be ascribed to their greater external surface area, which is more accessible to large molecules.
研究领域:
化学合成
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催化化学
·
材料科学
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环境化学
·
纳米技术
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高影响因子
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