ADVANCED MATERIALS
·
2025
·
IF 26.8
Kai Jin,Yu-Tong Yang,Yu Xia,Xiao-Yu Rong,Xin Chen,Lei Huang,Chun-Hao Chen,Jing Chen,Kai-Li Wang,Zhao-Kui Wang
Tin halide perovskites (THPs) suffer from low stability due to the easy oxidation of Sn (II). Although traditional reduction strategies effectively inhibit the oxidation of Sn (II), the gradual depletion of reducing agents during continuous device operation significantly weakens their antioxidative capacity, thereby limiting the long-term stability of the device. Herein, a regenerative redox cycling strategy utilizing 4-mercaptobenzoic acid (4-MBA) is proposed. Under operational conditions, UV irradiation enables 4-MBA regeneration, which concurrently drives continuous Sn (IV)-to-Sn (II) reduction and facilitates dual-site defect passivation, significantly enhancing device efficiency and stability. Ultimately, an excellent efficiency of 15.15% is achieved and maintained 100% of the initial efficiency for 1100 h in a simulated day–night cycle maximum power point tracking (MPPT) test. This work provides a sustainable reduction strategy that effectively addresses the long-term stability issue of tin perovskite photovoltaic cells.
研究领域:
材料科学
·
光伏技术
·
纳米材料
·
能源化学
·
半导体物理
·
功能材料
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Shuo Yuan,Chao Fan,He Tian,Yonghui Zhang,Zihui Zhang,Mianzeng Zhong,Hongfei Liu,Mengjun Wang,Erping Li
Doping of tin disulfide (SnS2) is an effective strategy to regulate its physical and chemical properties. In this work, In doping was used to manipulate the photoresponse behavior of SnS2-based photodetectors. In-doped SnS2 nanosheets were synthesized via a facile hydrothermal method. It was found that the In doping concentration plays an important role in the size of the fabricated SnS2 nanosheets. With the increase in the In doping concentration, the lateral size of samples increased from ∼210 to ∼420 nm, but the crystallinity became poor at higher concentrations. Energy dispersive X-ray-mapping results show that the In was homogeneously distributed in the samples. In addition, a red shift was observed in the binding energy of Sn and S with increased In doping concentration, which may be due to the p-type doping of In in SnS2. After In doping, the performance of SnS2-based photodetectors was significantly improved. The photoresponse speed of In-doped SnS2-based photodetectors was faster than that of pristine SnS2-based devices under the illumination of 532 and 405 nm lasers. This work develops an effective approach of In doping to enhance the photoresponse characteristics of SnS2-based photodetectors and proves that In-doped SnS2 has a vast potential in optoelectronic applications.
研究领域:
材料科学
·
光学工程
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PubMed
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2017
·Vol. 123
·期 6
·1-4
·
IF 1.455
Wen Xiaoyu,Pan Xiaona,Wu Libin,Li Ruinan,Wang Dan,Zhang Jinqiu,Yang Peixia
Lamellar tin deposits were prepared by galvanostatical electroplating from the aqueous acidic-sulfate bath, with gelatin and benzalacetone dissolved in ethanol (A BA+EtOH ) as additive, and their morphologies were investigated by scanning electron microscopy. Cathodic polarization curves revealed that the absorbability of A BA+EtOH on the cathode surface was higher than that of gelatin. X-ray diffraction analysis indicated preferred orientations of tin growth led to the formation of lamellar structure and distortion of tin lattice. The growth mechanism of lamellar tin was also discussed.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Zhi Li,Jiwei Zhang,Jie Shu,Jianping Chen,Chunhong Gong,Jianhui Guo,Laigui Yu,Jingwei Zhang
One-dimensional carbon nanofibers with highly dispersed tin (Sn) and tin antimonide (SnSb) nanoparticles are prepared by electrospinning in the presence of antimony-doped tin oxide (denoted as ATO) wet gel as the precursor. The effect of ATO dosage on the microstructure and electrochemical properties of the as-fabricated Sn-SnSb/C composite nanofibers is investigated. Results indicate that ATO wet gel as the precursor can effectively improve the dispersion of Sn nanoparticles in carbon fiber and prevent them from segregation during the electrospinning and subsequent calcination processes. The as-prepared Sn-SnSb/C nanofibers as the anode materials for lithium-ion batteries exhibit high reversible capacity and stable cycle performance. Particularly, the electrode made from Sn-SnSb/C composite nanofibers obtained with 0.9 g of ATO gel has a high specific capacity of 779 mAh·g −1 and 378 mAh·g −1 at the current density of 50 mA·g −1 and 5 A·g −1 , respectively, and it exhibits a capacity retention of 97% after 1200 cycles under the current density of 1 A·g −1 . This is because the carbon nanofibers can form a continuous conductive network to buffer the volume change of the electrodes while Sn and Sn-SnSb nanoparticles uniformly distributed in the carbon nanofibers are free of segregation, thereby contributing to electrochemical performances of the electrodes.
研究领域:
材料科学
·
能源科学
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Xinyue Shi,Xueqing Liu,Chunxiao Nie,Yangkai Zhang,Degao Zhong,Bing Teng,Zhoubin Lin,Yisheng Huang,Shijia Sun
As promising optoelectronic functional materials in the short-wavelength spectral region, such as ultraviolet (UV) and deep UV, phosphates have recently received increased attention. However, phosphate materials commonly suffer from limited birefringence owing to the highly symmetrical PO4 tetrahedra. We herein report a layered tin(II) phosphate with improved birefringence. By employing a polarizing microscope, the measured refractive index difference determined on a (010) wafer is 0.042@550 nm, which is very close to the calculated refractive index difference of 0.039@550 nm between nx and nz through the density functional theory (DFT) method. The largest birefringence appears on the (100) plane, which is theoretically determined to be 0.078@550 nm. Single crystals of SnHPO4 measuring 20 × 4 × 3 mm3 can be easily grown by a hydrothermal method. In addition, SnHPO4 is UV transparent with a short UV absorption cutoff edge of 242 nm and an optical band gap of 4.50 eV, implying that it could be a potential UV birefringent material.
研究领域:
材料科学
·
光电子学
·
无机化学
·
晶体学
·
光子学
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 30
·期 15
·14519-14527
·
IF 2.195
Wei Yun,Shi Yupeng,Zhang Xuefeng,Jiang Zhiyang,Zhang Yahong,Zhang Lei,Zhang Jingwei,Gong Chunhong
In this work, the titanium nitride (TiN) ceramic fibers with average diameter of ~ 1 μm and length of tens of micrometer range were synthesized by electrospinning followed by thermal nitridation reaction. And their dielectric property and EM wave absorption performance were investigated in the GHz range. Due to the strong high-frequency polarization effect resulted from the large surface contact area of the obtained TiN fibers, satisfactory EM wave attenuation was achieved with a low absorbent content of only 14.5 wt%. Specifically, the composite TiN fibers displayed an ultrawide effective absorption bandwidth of 4.1 GHz with > 90% EM attenuation and an optimal reflection loss as high as − 47.2 dB at the thickness of 2 mm. The combined excellent EM absorption property with high-temperature and corrosion resistance, simple production procedure and low cost endow TiN fibers as a promising candidate for lightweight microwave absorption materials suitable for harsh application conditions.
研究领域:
材料科学
·
电磁学
·
纳米技术
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DOI
高影响因子
Journal of Physical Chemistry C
·
2026
·Vol. 130
·期 34
·11997-12005
·
IF 3.4
Kong Wanru,Zhang Chi,Li Min,Chu Anshi,Ouyang Yu,Chen Shulin,Zhuang Xiujuan
All-inorganic lead-free tin-based perovskites are ideal
candidate
materials for lead-based perovskites due to their environmentally
friendly nature. However, their atmospheric instability remains a
significant hurdle for practical applications. In this study, zero-dimensional
(0D) Cs 4 SnBr 6 and three-dimensional (3D) CsSnBr 3 are synthesized via a one-step reaction method. 3D CsSnBr 3 exposed to air exhibits significant photoluminescence (PL)
enhancement after light soaking, a phenomenon that persists even after
the light is removed, whereas 3D CsSnBr 3 under a nitrogen
atmosphere and 0D Cs 4 SnBr 6 in air show no such
effect. The PL enhancement is attributed to a dimension-dependent
photoinduced oxygen passivation mechanism. The continuous network
of [SnBr 6 ] 4– octahedra in 3D CsSnBr 3 provides channels for oxygen diffusion, allowing subsequent
reaction with defects and effectively suppressing nonradiative recombination
channels. The isolated [SnBr 6 ] 4– octahedral
structure in 0D Cs 4 SnBr 6 restricts this process,
indicating that 0D Cs 4 SnBr 6 has better stability
than 3D CsSnBr 3 . Therefore, the marked difference in passivation
behavior directly originates from distinct structural dimensionalities
and reflects their divergent environmental stability. This work clarifies
the critical role of dimensional engineering in regulating perovskite–environment
interactions. It offers new insights into designing high-performance
and stable lead-free perovskite devices.
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2025
·Vol. 31
·期 38
·e202501156
·
IF 3.7
Xin Li,Chang Liu,Bingshuang Li,Jin Li,Shifeng Wang,Xiaoxi Huang
Graphical This study compared electrochemical CO 2 reduction performance catalyzed by SnO 2 under constant cathodic potential ( E c ) and pulsed modes with periodic cathodic ( E c ) and anodic ( E a ) potentials. The latter strategy shows higher formate selectivity because pulsed electrolysis can regenerate active SnO x phase. This work enables the control of CO 2 reduction selectivity by tuning the applied potential program. The performance of electrochemical CO 2 reduction reaction (CO 2 RR) is determined by multiple factors, including the optimization of catalysts and electrolyser, along with the electrolysis technique. Recently, pulsed electrolysis has been found to tailor the selectivity and prolong the stability of CO 2 RR on a variety of catalysts, with the most focus on Cu-based materials. The investigation of pulsed electrolysis on Sn-based materials remains at early stage. Herein, we evaluate the CO 2 reduction selectivity of tin oxide electrocatalyst under constant potential electrolysis (CPE) and pulsed potential electrolysis (PPE). Tin oxide achieves higher selectivity toward formate under PPE conditions in comparison with CPE. Induced by applied potential, tin oxide catalyst undergoes obvious reconstruction and into the composite of Sn-SnO 2 in the process of CO 2 reduction under both PPE and CPE conditions. The high selectivity under PPE condition is ascribed to the formation of SnO x on the catalyst surface due to the applied anodic potential.
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高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2021
·
IF 3.995
Jiandongyong Liu,Xu Yu,Jingze Bao,Chuan-Fu Sun,Yafeng Li
Carbon-supported SnS composite was prepared via a solvothermal process followed by thermal calcination . The carbon nanosheets could not only ensure electron conduction within the composite but also alleviate the volume change of SnS during the charging/discharging process. As a result, when employed as an anode material for potassium-ion batteries, the composite delivers good potassium storage performance. In detail, at a current density of 100 mA g −1 , its capacity is still higher than 102.6 mAh g −1 after 50 cycles. In terms of long-cycling stability, 76.1 mAh g −1 was obtained after 200 cycles at 200 mA g −1 .
研究领域:
材料科学
·
电化学
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DOI
高影响因子
ACS Applied Polymer Materials
·
2020
·
IF 0
Yang Gao,Haijun Dong,Licheng Liu,Yingfeng Yu,Zhengming Tang,Chenyan Bai,Thorsten Schmidt,Yanli Feng,Hongyu Chen
For many applications, polyurethanes (PUs) need to have a fast curing speed and long pot life. Latent catalysts are seen to be one of the approaches that can fulfill this need. In this article, we have synthesized a series of copolymers with n-alkyl acrylates and a reactive tin catalyst, dibutyltin maleate, by conventional free radical polymerization using azodiisobutyronitrile (AIBN) as an initiator and dodecanethiol as a chain transfer agent. The copolymers with crystalline side chains were characterized by gel permeation chromatography (GPC), 1H NMR, 13C NMR, differential scanning calorimetry (DSC), and ion chromatography. The tin-containing copolymers showed high crystallinity. The melting temperature of the copolymers decreases slightly with the decrease of molecular weight (Mw), while the crystallinity remains almost unchanged. The catalytic performance and latency of the crystalline copolymers with different particle sizes were characterized by rheological measurement and Fourier transform infrared spectroscopy (FTIR). The crystalline copolymers showed quite good latency at 30 °C and high reactivity above the melting point. Both the particle size and the Mw of the copolymers had effects on the latency of crystalline catalysts. The PU adhesive with copolymers showed a higher peel strength at the initial stage than the noncatalyzed one and comparable final properties as compared with the samples with dibutyltin dilaurate and dibutyltin maleate.
研究领域:
材料科学
·
高分子化学
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产品关联
DOI
Nanomaterials
·
2019
·Vol. 9
·期 3
·388
·
IF 4.034
Han Wu,Zhong Ma,Zixia Lin,Haizeng Song,Shancheng Yan,Yi Shi
Ammonia (NH3) is a harmful gas contaminant that is part of the nitrogen cycle in our daily lives. Therefore, highly sensitive ammonia sensors are important for environmental protection and human health. However, it is difficult to detect low concentrations of ammonia (≤50 ppm) using conventional means at room temperature. Tin monoxide (SnO), a member of IV–VI metal monoxides, has attracted much attention due to its low cost, environmental-friendly nature, and higher stability compared with other non-oxide ammonia sensing material like alkaline metal or polymer, which made this material an ideal alternative for ammonia sensor applications. In this work, we fabricated high-sensitive ammonia sensors based on self-assembly SnO nanoshells via a solution method and annealing under 300 °C for 1 h. The as fabricated sensors exhibited the response of 313%, 874%, 2757%, 3116%, and 3757% (∆G/G) under ammonia concentration of 5 ppm, 20 ppm, 50 ppm, 100 ppm, and 200 ppm, respectively. The structure of the nanoshells, which have curved shells that provide shelters for the core and also possess a large surface area, is able to absorb more ammonia molecules, leading to further improvements in the sensitivity. Further, the SnO nanoshells have higher oxygen vacancy densities compared with other metal oxide ammonia sensing materials, enabling it to have higher performance. Additionally, the selectivity of ammonia sensors is also outstanding. We hope this work will provide a reference for the study of similar structures and applications of IV–VI metal monoxides in the gas sensor field.Keywords:tin monoxide;nanoshell;ammonia sensor;solution method
研究领域:
材料科学
·
环境科学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Xiaopeng Bai,Shiu Hei Lam,Jingtian Hu,Ka Kit Chui,Xiao-Ming Zhu,Lei Shao,Tsz Him Chow,Jianfang Wang
Transferring traditional plasmonic noble metal nanomaterials from the laboratory to industrial production has remained challenging due to the high price of noble metals. The development of cost-effective non-noble-metal alternatives with outstanding plasmonic properties has therefore become essential. Herein, we report on the gram-scale production of differently shaped TiN nanoparticles with strong plasmon-enabled broadband light absorption, including differently sized TiN nanospheres, nanobipyramids, and nanorod arrays. The TiN nanospheres and nanobipyramids are further coembedded in highly porous poly(vinyl alcohol) films to function as a photothermal material for solar seawater desalination. A seawater evaporation rate of 3.8 kg m–2 h–1 is achieved, which marks the record performance among all plasmonic solar seawater desalination systems reported so far. The removal percentage of phenol reaches 98.3%, which is attributed to the joint action of the excellent photocatalytic ability and the superhydrophilicity of the porous TiN-based composite film.
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高影响因子
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