Journal of Energy Storage
·
2024
·
IF 8.9
Ziqi Liu,Ruolin Zhao,Feifan Hong,Sizhi Ding,Jiakun Yang,Renhuan Li,Yi Fan,Haizhen Liu,Jin Guo,Zhiqiang Lan
Hydrogen storage materials are the primary solution for addressing safety concerns in hydrogen energy storage and transportation. Despite the advantages of magnesium-based hydrogen storage materials, such as high capacity and good reversibility, their poor kinetic performances severely limit their practical applications. In this study, the synthesis of titanium nitride supported on carbon (TiN@C) was achieved through a controllable hydrothermal method , aiming to enhance the hydrogen storage performances of MgH 2 .With the catalytic action of TiN@C, MgH 2 could rapidly release over 6.0 wt% of hydrogen at 300 °C within 15 min, while the onset dehydrogenation temperature decreased to 226 °C. The dehydrogenated MgH 2 could reabsorb 5.80 wt% of hydrogen at 200 °C for 15 min with a reduced activation energy of 44.9 kJ·mol −1 , demonstrating excellent kinetic performance. Mechanism analysis revealed that the multiphase interface between MgH 2 (Mg) and TiN@C significantly improved the hydrogen desorption kinetics of materials, especially TiN and the in-situ formed TiH 2 were the main reasons for improving the hydrogen storage performance of materials.
研究领域:
材料科学
·
能源存储与转换
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DOI
高影响因子
CHEMISTRY OF MATERIALS
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2020
·
IF 9.567
Shuang Li,Xunuo Lou,Xiaotong Li,Jian Zhang,Di Li,Houquan Deng,Jizi Liu,Guodong Tang
Here, we report a remarkable high-average figure of merit (ZT) of 0.73 with the peak ZT of 1.9 in bulk polycrystalline tin selenide (SnSe), generating a high energy conversion efficiency of ∼12.5%. The remarkable high thermoelectric performance results from the enhanced electrical transport properties and reduced lattice thermal conductivity through Schottky vacancies and endotaxial nanostructuring. High angle annular dark field scanning transmission electron microscopy identified amounts of Schottky vacancies and endotaxial PbSe nanoprecipitates present in the SnSe matrix. Schottky vacancies and endotaxial PbSe nanostructures contribute to low lattice thermal conductivity by establishing strong phonon scattering centers. Consequently, an extreme low lattice thermal conductivity of 0.23 W m–1 K–1 was achieved at 873 K. Schottky vacancies lead to the increase in carrier concentration, contributing to the enhancement of electrical conductivity and power factor (PF). The maximum PF reached 7.5 μW cm–1 K–2 at 873 K. In addition to the high peak ZT, a high average ZT and outstanding thermoelectric conversion efficiency were realized, which ensured its huge potential in practical application. This work provides a new strategy for enhancing thermoelectric performance and designing prospective high-performance thermoelectric materials.
研究领域:
材料科学
·
热电学
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DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
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2022
·
IF 5.723
Yulin Li,Xiangyunxiu Meng,Ruiwen Luo,Haonan Zhou,Shuyan Lu,Shuning Yu,Peng Bai,Xianghai Guo,Jiafei Lyu
Glucose isomerization into fructose is the dominant reaction path for biomass conversion . Lewis acidic aluminum or tin were firstly impregnated in microporous UiO-66 for remarkably enhanced glucose isomerization. Al@UiO-66 achieved 37.5% fructose yield with a 63.9% selectivity with no obvious leaching of aluminum while Sn@UiO-66 failed the leaching test. The 27 Al NMR and XPS spectra of Al@UiO-66 demonstrated the complex environment of aluminum in UiO-66 involving the chains of aluminum octahedra and the Al–O–C structure, which contributed to the enhanced Lewis acidity and promoted performance of the catalyst.
研究领域:
化学工程
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催化
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材料科学
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生物化学
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DOI
高影响因子
Journal of Physical Chemistry C
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2022
·
IF 4.177
Yang Guo,Mingyuan Sun,Wenjian Yang,Songyang Yuan,Hui Xiong,Ziyu Tan,Jiandong Fan,Wenzhe Li
Tin-based perovskite has been widely studied due to its green, nontoxic, and excellent photoelectric physical properties. However, the high sensitivity of Sn2+ cations against moisture and oxygen was a huge challenge for preparing stable solar cells. In this study, 4-(aminomethyl) pyridine (4AP) cation is introduced to construct two-dimensional (2D) and Dion–Jacobson (DJ) perovskite 4APSnX4 (X = Cl, Br, I). First, through halogen component regulation, the charge transfer efficiency is improved. Then, it is found that increasing the temperature could build the charge transfer channel through an organic component and further improve the charge transfer efficiency. Finally, we prepared stable quasi-2D tin-based perovskite solar cells with the champion efficiency of 5.03%. We tracked the performance of unencapsulated devices over 200 h in an ambient environment (R.H. = 30%, T = 25 °C) and found no appreciable decay in efficiency. This study provides a new strategy for solving the transmission and stability problem of 2D tin perovskite.
研究领域:
材料科学
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太阳能技术
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物理化学
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DOI
高影响因子
IEEE ELECTRON DEVICE LETTERS
·
2024
·Vol. 45
·期 3
·396-399
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IF 4.1
Yilun Zhong,Jiwei Zou,Taoming Guo,Lei Han,Ye Zou,Wei Tang,Yongpan Liu,Huazhong Yang,Yunlong Guo,Chen Jiang
Transparent organic thin-film transistors (OTFTs) are promising for bioelectronics applications, by allowing simultaneous optical imaging with electrical sensing and modulation. However, the state-of-the-art transparent OTFTs have limited device performance, in terms of low mobility and high threshold voltage. This is mainly attributed to the large contact resistance induced by the energy level mismatch between the transparent electrodes and organic semiconductors. He re, we report transparent OTFTs with indium tin oxide electrodes modified by fluorinated silanes to improve device performance. It is found that the OTFTs with electrode modified by fluorinated silanes exhibit increased mobility from 0.12 cm2/ $\text{V}\cdot \text{s}$ to 1.58 cm2/ $\text{V}\cdot \text{s}$ and lower threshold voltage from–12.45 V to–2.21 V. The contact resistance of the OTFT characterized by a transmission line method, shows a reduction from over 1 $\text{M}\Omega $ to below 100 $\text{k}\Omega $ .
研究领域:
材料科学
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电子工程
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生物电子学
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产品关联
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 5
·437
·
IF 4.4
Yanjun Xing,Zhiqiang Deng,Qiuxiang Wang,Jiaxing Xiong,Xiaohui Liu,Like Huang,Yuejin Zhu,Jing Zhang
The poor film stability of Sn-Pb mixed perovskite film and the mismatched interface energy levels pose significant challenges in enhancing the efficiency of tin–lead (Sn-Pb) mixed perovskite solar cells. In this study, polyvinylpyrrolidone (PVP) is introduced into the PVK perovskite precursor solution, effectively enhancing the overall stability of the film. This improvement is achieved through the formation of robust coordination bonds between the carbonyl (C=O) in the pyrrole ring and the undercoordinated SnIIand PbII, thereby facilitating the passivation of defects. Furthermore, the introduction of PVP inhibits the oxidation of tin (Sn), thereby enhancing the n-type characteristics of the perovskite film. This adjustment in the energy level of the PVK perovskite film proves instrumental in reducing interface energy loss, subsequently improving interface charge transfer and mitigating device recombination. Consequently, perovskite solar cells incorporating PVP achieve an outstanding champion power conversion efficiency (PCE) of 21.31%.
研究领域:
材料科学
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太阳能技术
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界面工程
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产品关联
DOI
PubMed
高影响因子
IEEE SENSORS JOURNAL
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2024
·Vol. 24
·期 14
·21792-21799
·
IF 4.3
Zhenheng Zhang,Shengyi Yang,Zhenhua Ge,Haiyuan Xin,Ying Wang,Yurong Jiang,Bingsuo Zou
Self-driven photodetectors based on flexible silicon nanowire (Si-NW) array have attracted widespread research interests since they can continuously operate without external bias. However, their practical performances are limited due to the high density of intrinsic defects introduced by the chemical etching procedure for the Si-NWs. To address this issue, first ultrathin silicon wafers are etched with a metal-assisted chemical etching method, then flexible Si-NWs are obtained, and finally, a high-performance self-driven photodetector Si/[Si-NWs/FASnBr3]/MoO3/Au, in which Si-NWs are surface passivated with FASnBr3 nanocrystals, is presented. As a result, the responsivity and specific detectivity of the self-driven photodetector reach 0.694 A/W and $2.9\times 10^{{13}}$ Jones, respectively, under $0.8~\mu $ W/cm $^{{2}}~980$ nm illumination at zero bias, with a rising time of 58.552 ms and a falling time of 43.729 ms. The enhanced device performance is mainly due to the improved surface passivating effect on the silicon nanowire surfaces by FASnBr3 nanocrystals. Thus, it provides an efficient method to passivate the surfaces of silicon nanowires, and it is a promising method to enhance the performances of self-driven Si-NW-based photodetectors.
研究领域:
材料科学
·
光电子学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Mingchen Xu,Xinfa Zhu,Gaoning Fan,Xiyu Jia,Yonghui Zhang,Mengjun Wang,Hongxing Zheng,Pengyu Zhou,Chao Fan
Visible photodetectors based on two-dimensional tin disulfide (SnS2) have attracted interest for applications in optical communication, information capture, and military reconnaissance owing to their high absorption efficiency, atomic-scale thickness, and nontoxicity. However, their intrinsic bandgap limits their spectral detection range, hindering further practical applications. Herein, we introduce VIII B-nickel (Ni) with a similar ionic radius to Sn to form Ni-doped SnS2 few-layers via micromechanical exfoliation. As the Ni-doping concentration increases, the bandgap decreases from 2.14 (SnS2) to 1.95 eV (Sn0.9Ni0.1S2). Subsequently, Ni-doped SnS2-based photodetectors are fabricated and characterized. These devices exhibit an extended spectral detection range and excellent performance, with a maximum responsivity of 2009 A W–1 and high normalized detectivity of 2.47 × 1012 cm Hz1/2 W–1. Furthermore, to suppress dark current and noise, SnS2/Ni-doped SnS2 homostructures and their corresponding photodetectors are fabricated. The built-in electrical field of the homostructure effectively reduces the dark current of the homostructure photodetector to 110 nA. Consequently, the responsivity is enhanced to 3350 A W–1 and the response time is reduced to 3.5 ms, outperforming most other 2D material–based and commercial photodetectors. And Ni-SnS2 VPDs show an application potential in imaging and visible-light communication systems. Thus, this study presents an effective approach to extend the detection spectrum of SnS2-based photodetectors and pave the way for their future applications.
研究领域:
材料科学
·
光电技术
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Linfeng Chen,Hongyang Li,Pengsen Qian,Yuqi Wang,Jianjun Zhang,Gaoran Li
Tin oxide, characterized by its exceptional theoretical capacity, emerges as a highly promising alternative anode in the pursuit of high-energy-density lithium-ion batteries (LIBs). However, inherent limitations in conductivity and structural integrity impede the fulfillment of its energy storage potential. Herein, sophisticated SnO 2 -carbon nanorods (SnO 2 /C NRs) derived from a tin-based metal-organic framework are developed for superior lithium storage. The ultrafine SnO 2 nanocrystals are embedded within a hollow and porous rod-like architecture, ensuring fast multidirectional charge transfer and well-accommodated volume variation during the lithiation/delithiation process. Moreover, the integration of the carbon matrix further promotes electron conduction and reinforces the structural integrity towards fast, efficient, and durable electrochemistry. As a result, the SnO 2 /C NRs electrodes demonstrate excellent long-term cyclability with a minimal capacity fading rate of 0.089 % per cycle over 500 cycles, and a commendable rate capability with a highly reversible capacity of 922.1 mAh g −1 at 3 C. This work establishes a unique and insightful paradigm for designing advanced electrode materials towards energy-dense next-generation LIBs.
研究领域:
材料科学
·
能源存储
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Jiang Haotian,Zhang Jie,Wei Li
Superior gas sensing properties may be obtained by forming suitable metal/semiconductor nanocomposites. In this work, gold (Au) was utilized to form composite nanofibers with tin oxide (SnO 2 ) to detect nitric oxide (NO) gas. Au/SnO 2 composite nanofibers were synthesized through a facile electrospinning and annealing treatment. Various techniques, including XRD, SEM, TEM, UV–vis, XPS, and BET, were used to characterize these Au/SnO 2 heterostructures. The characterization results demonstrate that Au exists in the form of metallic clusters even at an extremely low concentration of 0.1 at% and, it can provide more active sites and chemisorbed oxygen species due to its spillover effect. The gas sensing results show that the Au/SnO 2 composite nanofibers exhibit excellent sensing performance to NO at 130 °C. Specifically, the composite nanofiber with 0.1 at% Au shows an ultrahigh response of 183 (resistance ratio) to 100 ppb NO gas at 130 °C. The sensor exhibits good selectivity, repeatability, and long-term stability. These remarkable sensing properties indicate that Au/SnO 2 composite nanofibers have promising applications to some demanding fields such as detecting NO from human exhaled breath.
研究领域:
材料科学
·
环境科学
·
医学检测
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Biao Lu,Kaifeng Yu,Huihui Cao,Jianing Zhang,Jinpeng Cao,Changzhi Tu,Yaqi Zhao,Bo Liu,Feifei Zhang
Redox flow batteries (RFBs) are emerging as a promising technology for large-scale energy storage applications due to their low cost, high safety, and environmentally benign nature. Among them, aqueous tin-based redox flow batteries (TRFBs) have attracted increasing attention for their dendrite-free plating and suppression of the hydrogen evolution reaction. However, their development has been hindered by the low solubility of Sn(II) electrolytes, sluggish Sn(II)/Sn reaction kinetics, and the irreversible formation of inactive “dead Sn.” Herein, we present a dual strategy combining ligand engineering and redox-mediated reactions to overcome these limitations. By introducing ethylenediaminetetraacetic acid (EDTA), a stable EDTA–Sn(OH)3– complex is formed, which enhances the Sn(II) solubility up to 0.3 M and modulates the Sn deposition morphology, thereby improving diffusion behavior and redox kinetics. Furthermore, 7,8-dihydroxyphenazine-2-sulfonic acid (DHPS) is employed as a redox mediator, which spontaneously reacts with inactive Sn deposits, effectively dissolving “dead Sn” and significantly improving capacity retention. When paired with potassium ferrocyanide, the EDTA-Sn-DHPS/Fe RFB exhibits excellent rate capabilities, prolonged cycling stability (300 cycles at 80 mA cm–2 and 20 mAh cm–2), a high energy efficiency of 84.5%, and a peak power density of 228.6 mW cm–2. This strategy offers a promising route for the development of high-performance TRFBs.
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Qian Yang,Yunluo Wang,Futing Sun,Jiaxin Hu,Zhiyu Qin,Zesen Gao,Wen Chen,Xiaoyan Li,Yan Yang,Xun Yao,Yongzhe Wang,Jingshan Hou,Yongzheng Fang,Minghui Wang,Wan Jiang,Lianjun Wang,Haijie Chen
Near-infrared (NIR) luminescent materials have attracted considerable attention for biomedical imaging and industrial inspection because of their deep penetration capability and strong technical adaptability. Coupling NIR luminescence with deep-learning algorithms further offers a promising route toward intelligent inspection with enhanced automation and accuracy. Here, we report a 0D, Sn halide (MBI) 2 SnCl 6 (MBI = 2-methylbenzimidazole), composed of organic MBI + cations and isolated [SnCl 6 ] 2− octahedra, and Sb substitution yields broadband NIR emission with a highest photoluminescence quantum yield of 59.19%. On this basis, subvisible defects on silicon wafer surfaces can be clearly visualized. When integrated with a U-Net-based convolutional neural network, the NIR imaging output enables rapid and automated defect identification, allowing accurate discrimination between qualified and defective wafers as well as subclassification of defective samples, with an average accuracy of 90.92% and an average recall of 92.92%. This work establishes an effective strategy for integrating lead-free NIR-emissive halides with artificial intelligence for intelligent inspection and highlights the potential of hybrid halide luminescent materials in advanced industrial imaging applications.
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DOI
高影响因子
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