INORGANIC CHEMISTRY
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2025
·
IF 4.7
Yu-Jie Zhang,Lin Cheng,Ze-Yu Wang,Ze-Jia Shen,Fei-Fei Wang,Jun-Zheng Wang,Zi-Xin Qiu,Shuaihua Wang,Kai-Yao Wang,Cheng Wang
A porous layered tin sulfide material, [(CH3)2NH2]2Sn3S7·0.4H2O (SnS-1), is developed for rapid Cs+ and Sr2+ removal from aqueous solutions. The alignment of hexagonal windows (8.3 × 8.3 Å2 in cross-section) across the stacked layers forms straight pseudochannels that enables effective ion diffusion and accommodation. SnS-1 exhibits outstanding ion exchange kinetics (k2Cs = 0.256 g mg–1 min–1; k2Sr = 0.272 g mg–1 min–1) and capacities (qmCs = 417.24 mg g–1; qmSr = 116.18 mg g–1), exceeding most chalcogenide-based exchangers. It exhibits acid–base resistance across a broad pH range (0–11) and remarkable selectivity for Cs+ and Sr2+ over various competing ions. Dynamic column filtration confirms the separation applicability of SnS-1, featuring sustained Sr2+ removal (RSr = 94.45–99.51%) against Cs+ (RCs = −20 ± 5%). The SnS-1/PTFE composite membrane can efficiently remove Cs+ and Sr2+ from continuous flow (2.0 mL min–1 cm–2), with removal efficiencies exceeding 91.71 and 98.91%, respectively. Moreover, the adsorbed Cs+ and Sr2+ ions can be readily eluted from the spent column and membrane using a 2 M NaCl solution. Combined with simple synthesis, radiolytic stability, and superior performance, microporous SnS-1 emerges as a promising candidate for nuclear wastewater remediation.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
PubMed
高影响因子
Small
·
2025
·
IF 12.1
Yongqi Yin,Xisheng Zhang,Ho Ngoc Nam,Quan Manh Phung,Kuina Yuan,Boyuan Li,Fanyue Kong,Azhar Alowasheeira,Baoning Wang,Lin Li,Yusuke Yamauchi
Tin halide perovskites are promising candidates for lead-free perovskite solar cells due to their ideal bandgap and high charge-carrier mobility. However, poor crystal quality and rapid degradation in ambient conditions severely limit their stability and practical applications. This study demonstrates that incorporating UiO-66, a zirconium-based MOF, significantly enhances the performance and stability of tin halide perovskite solar cells (TPSCs). The unique porous structure and abundant carboxylate groups of UiO-66 improve the crystallinity and film quality of FASnI₃, reduce defect density, and prolong charge carrier lifetimes. Consequently, the power conversion efficiency (PCE) of UiO-66-integrated TPSCs increases from 11.43% to 12.64%, and the devices maintain over 90% of their initial PCE after 100 days in a nitrogen glovebox. These findings highlight the potential of UiO-66 in addressing the efficiency and stability challenges of tin halide perovskites.
研究领域:
材料科学
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能源技术
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光伏器件
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DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2024
·
IF 2.6
Zhang Shiwen,Yu Taoming,Sun Zhuoran,Song Wenjing,Li Lili,Dong Shujun
Nanostructure engineering and carbon incorporation can effectively achieve superior lithium storage performance of SiO 2 anode. However, the working operation at high rates and extreme temperatures remains a challenge for SiO 2 -based anode. Here, SiO 2 @N-doped carbon (SiO 2 @NC) nanospheres encapsulated in the TiN/C nanofibers (SiO 2 @NC@TiN/C) were fabricated via coaxial electrospinning. The SiO 2 @NC@TiN/C with a robust structure and conductive shells exhibited excellent cycling stability and fast Li + diffusion kinetics. The SiO 2 @NC@TiN/C electrode delivered a superior rate performance (317.9 mAh g −1 ) and ultra-long cycle life (284.5 mAh g −1 after 3200 cycles) at 10 A g −1 . Furthermore, the SiO 2 @NC@TiN/C electrode maintained an excellent cycling stability at 65 ℃ (420.6 mAh g −1 after 300 cycles at 1 A g −1 ). This research offered an ingenious design way to create a multilayer coated anode, which could exhibit good electrochemical performance under harsh conditions.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
·
IF 14.7
Li Tianpeng,Li Bin,Yang Yingguo,Jin Zuoming,Zhang Zhiguo,Wang Peilin,Deng Liangliang,Zhan Yiqiang,Zhang Qinghong,Liang Jia
Tin-based perovskite solar cells have garnered attention for their biocompatibility, narrow bandgap, and long thermal carrier lifetime. However, nip -type tin-based perovskite solar cells have underperformed largely due to the indiscriminate use of metal oxide electron transport layers originally designed for nip -type lead-based perovskite solar cells. Here, we reveal that this underperformance is caused by oxygen vacancies and deeper energy levels in metal oxide. To address these issues, we propose a metal chalcogenide electron transport layer, specifically Sn(S 0.92 Se 0.08 ) 2 , which circumvents the oxygen molecules desorption and impedes the Sn 2+ oxidation. As a result, tin-based perovskite solar cells with Sn(S 0.92 Se 0.08 ) 2 demonstrate a V OC increase from 0.48 – 0.73 V and a power conversion efficiency boost from 6.98 – 11.78%. Additionally, these cells exhibit improved stability, retaining over 95% of their initial efficiency after 1632 h. Our findings showcase metal chalcogenides as promising candidates for future nip -type tin-based perovskite solar cell applications.
研究领域:
材料科学
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可再生能源
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太阳能电池
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半导体物理
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DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 11
·2683
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IF 3.1
Stephan Handschuh-Wang,Tao Wang,Zongyan Zhang,Fucheng Liu,Peigang Han,Xiaorui Liu
Thermal transport is of grave importance in many high-value applications. Heat dissipation can be improved by utilizing liquid metals as thermal interface materials. Yet, liquid metals exhibit corrosivity towards many metals used for heat sinks, such as aluminum, and other electrical devices (i.e., copper). The compatibility of the liquid metal with the heat sink or device material as well as its long-term stability are important performance variables for thermal management systems. Herein, the compatibility of the liquid metal Galinstan, a eutectic alloy of gallium, indium, and tin, with diamond coatings and the stability of the liquid metal in this environment are scrutinized. The liquid metal did not penetrate the diamond coating nor corrode it. However, the liquid metal solidified with the progression of time, starting from the second year. After 4 years of aging, the liquid metal on all samples solidified, which cannot be explained by the dissolution of aluminum from the titanium alloy. In contrast, the solidification arose from oxidation by oxygen, followed by hydrolysis to GaOOH due to the humidity in the air. The hydrolysis led to dealloying, where In and Sn remained an alloy while Ga separated as GaOOH. This hydrolysis has implications for many devices based on gallium alloys and should be considered during the design phase of liquid metal-enabled products.
研究领域:
材料科学
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热管理技术
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DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Xin Jin,Fujie Li,Xuguang Zhang,Guangrong Zeng,Xuehua Liu,Bin Cai,Chao Wang,Xiu Song Zhao
Layered sodium trititanate (Na 2 Ti 3 O 7 , NTO) is a promising anode material for sodium-ion batteries (NIBs) for large-scale energy storage applications because of its relatively low charge potential and low cost. However, NTO suffers from unsatisfactory structural stability against cycling and poor electron conductivity. Herein, an isovalent doping strategy using Sn 4+ to partially replace Ti 4+ is demonstrated for improving the cycling stability and rate capability of NTO. The isovalent doping of Sn 4+ does not alter the valence state of Ti 4+ , thus maintaining the lattice integrality and structural stability. Moreover, the Sn 4+ dopant creates more Na + -preferable travel channels and expands the interlayer spacing, thus increasing Na + diffusivity. As a result, a Sn 4+ -doped Na 2 Ti 3 O 7 (NSTO) electrode exhibits a reversible Na + storage specific capacity of 176 mA h g −1 at 0.1C and an ultra-long cycling life with 80.2% capacity retention after 5000 cycles at 1C, far outperforming the undoped and aliovalent-doping NTO electrodes reported in the literature. In addition, the NSTO electrode delivers a rate capability of 102 mA h g −1 at 5C, higher than that of the NTO electrode (62 mA h g −1 ). In situ X-ray diffraction characterization results reveal that Na + storage in NSTO undergoes a partial solid-solution reaction mechanism, which is completely different from the two-phase transition mechanism of NTO. Density functional theory calculation results demonstrate that Sn 4+ doping strengthens the Ti–O bond, contributing to structural stability. This work provides a robust approach to significantly improving the electrochemical performance of NTO-based anode materials for developing long-life NIBs.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Laser & Photonics Reviews
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2024
·
IF 9.8
Wenchen Ma,Zhenwei Ren,Hengfei Shi,Xueqing Xia,Xinwen Wang,Huifei Ji,Hua Chen,Chengzhao Luo,Chinhua Wang,Song Chen,Yu Chen
As an alternative electron transport material to the chemically unstable ZnO nanoparticles (NPs), SnO 2 NPs exhibit a great potential to construct high-performance quantum dot light-emitting diodes (QLEDs). However, only moderate device performance has been obtained for SnO 2 -based QLEDs due to the low electron mobility, unfavorable energy band, and massive defects of SnO 2 NPs. Herein, a strategy of transition metal doping is reported to achieve high-quality manganese-doped SnO 2 (Mn-SnO 2 ) NPs to address the above problems. Specifically, the large bond energy of Mn─O bonds reduces the oxygen vacancy defects, prompting an effective suppression of the interfacial exciton quenching for massive radiative recombination. Moreover, the favorable energy band and high electron mobility for Mn-SnO 2 promote efficient electron injection and transportation. The good optoelectronic properties for Mn-SnO 2 NPs contribute to a great enhancement in device efficiency from 8.2 to 11.4% and a remarkable improvement in lifetime ( T 95 ) from 565.3 to 1009.2 h at 1000 cd −2 , among the best performing ZnO-free QLEDs. Notably, the Mn-SnO 2 based QLEDs show a very superior shelf stability to the QLEDs based on SnO 2 and ZnO analogs. Consequently, this work reports an effective approach to achieve high-quality SnO 2 NPs for efficient and stable QLEDs.
研究领域:
材料科学
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光电技术
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DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Jianfa Chen,Ting Zhu,Xiangping Fu,Guangyuan Ren,Chunyan Wang
A hydrothermal/calcination method was successfully applied to prepare ultrafine tin dioxide (SnO2)/few-walled carbon nanotube (FWNT) composites (SnO2@FWNT). The corresponding morphological and structural information were further obtained by the characterization technique of transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. In the SnO2@FWNT composites, ultrafine SnO2 nanoparticles with an average size of 2-3 nm were uniformly distributed on the FWNT with a thickness of 2-5 layers. With the synergistic effect of highly conductive FWNT and highly dispersed SnO2, the SnO2@FWNT hybrids presented excellent specific capacitance of 220.5 F g -1 at a scan rate of 2 mV s -1 under neutral environment. A power density of 30.63 kW kg -1 and an energy density of 512.79 W kg -1 were obtained, respectively. In addition, a specific capacity retention rate of 89.57% was acquired after 1000 cycles, indicating a superior stability of SnO2@FWNT hybrids. The results indicate that the SnO2@FWNT composites can be used as an alternative electrode material for high-performance supercapacitors.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Chao Dong,Rong Liu,Wenbo Cao,Weili Meng,Mingtai Wang
Herein, for the first time, we have fabricated superstrate-type CuInS2 planar heterojunction solar cells configured as FTO/SnOx/CdS/CuInS2/Spiro-OMeTAD/Au, in which an amorphous tin oxide (SnOx) interfacial layer is prepared by a straightforward solution-processing method at low temperatures (≤200 °C), and 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD) is used as a hole-transporting material. It is revealed that the solar cells exhibit a performance that is strongly dependent on the SnOx layer thickness and deliver a peak power conversion efficiency of 6.56% for a 25 nm-thick SnOx layer, which is higher by 78% than that of the control devices without the SnOx interfacial layer. This is attributed to the reduced interfacial charge recombination at the CdS/CuInS2 interfaces due to the fast extraction of photogenerated electrons from the CdS layer into the SnOx film for collection. This work offers promising interfacial access to efficient CuInS2 planar heterojunction solar cells.
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Yuyan Gong,Xuehua Liu,Yangyang Gong,Diben Wu,Binghui Xu,Lei Bi,Lian Ying Zhang,X.S. Zhao
Unique and novel Pd 4 Sn nanochain networks were successfully synthesized with an average diameter of 5 nm, rendering a modified Pd electronic structure with rich defects such as atomic corners, steps or ledges as catalytic active sites for great enhancement of charge transfer and electrode kinetics . The prepared Pd 4 Sn nanochain networks held an electrochemically active surface area as high as 119.40 m 2 g −1 , and exhibited higher catalytic activity and stability toward formic acid oxidation compared with Pd 3 Sn nanochain networks, Pd 5 Sn nanochain networks, Pd 4 Sn dendrites and Pd/C. The fundamental insight of the enhancement mechanism is discussed, and this work offers a novel, less expensive but highly active catalyst for direct formic acid fuel cells.
研究领域:
材料科学
·
电化学
·
燃料电池
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产品关联
DOI
PubMed
高影响因子
Smart Materials and Structures
·
2019
·Vol. 28
·期 10
·105006
·
IF 3.543
Guangming Tian,Guangming Zhu,Shuogui Xu,Tianning Ren
Plasmonic materials possess good optical properties in effectively converting solar energy into heat, here a series of sunlight responsive shape memory composites films based on acrylate-terminated Poly (ε-caprolactone) (PCL) and titanium nitride nanoparticles (TiN NPs) are prepared via base-catalyzed Michael addition. Compared with conventional free radical polymerization or physical blending, this paper constructs a network architecture from view of structural controllability, favoring a subsequent flexible and elastic materials as well as fine dispersion of TiN NPs in the cross-linked networks, the resultant materials show an outstanding mechanical and the incorporated TiN NPs enable rapid temperature increase over the melting temperature of PCL and trigger the shape change of the composite with good shape recovery rate. The effect of light density and TiN NPs concentration on composite film are elucidated and investigated systematically, it is found that the amount of TiN NPs content virtually has a negligible effect on the surface temperature of the films when subjected to a specific illumination, however, light intensity has a remarkable influence on it. Furthermore, an electronics device switch actuated by 160 mw cm−2 simulated sunlight irradiation is demonstrated and envisioned for flexible electronic applications.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2023
·
IF 3.7
Yongqi Zhang,Hongrui Cheng,Xin Chen,Yuanhui Zheng
Two-dimensional (2D) Sn-based perovskites have emerged as a promising alternative to Pb-based perovskites due to their nontoxic nature. However, Sn2+ ions tend to get oxidized to Sn4+ during the synthesis process, leading to crystalline defects and rapid nonradiative transitions, which limits their applications. In this study, we present a facile molecular doping strategy for (C18H35NH3)2SnBr4 perovskite by introducing o-phenylenediamine (oPD) in the precursor solution. The oPD serves a dual role: it not only acts as an electron donor, creating a reducing environment to suppress the oxidation of Sn2+, but also functions as a chelating agent, forming stable compounds with Sn2+. This approach results in 20% oPD doped (C18H35NH3)2SnBr4 perovskite, which exhibits a high photoluminescence quantum yield (PLQY) of 95.3% and excellent stability against oxygen. Furthermore, UV-pumped orange and white light-emitting diodes (LEDs) with a CIE coordinate (0.562, 0.431, 0.327, and 0.346) were produced using oPD-doped 2D tin-based perovskite powders, respectively. These findings suggest that the doping strategy has great potential to enhance the stability of 2D Sn-based perovskites and facilitate their application in the field of lighting devices.
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高影响因子
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