NANOTECHNOLOGY
·
2024
·Vol. 35
·期 38
·385705
·
IF 2.9
Yongguang Xiao,Lisha Yang,Yong Jiang,Siwei Liu,Gang Li,Jun Ouyang,Minghua Tang
Lu doped Hf0.5Zr0.5O2 (HZO) ferroelectric films were prepared on Pt/TiN/SiO2/Si substrate by chemical solution deposition method, and an interfacial engineering strategy for improving the ferroelectric property was explored by capping the Lu doped HZO films with a cerium oxide layer. Compared with the Lu doped HZO film without the CeOx coating layer, the Lu doped HZO film with the CeOx coating layer has a larger remanent polarization (2Pr = 34.72 µC cm−2) and presents weaker wake-up behavior, which result from the higher orthogonal phase ratio and the lower oxygen vacancy of the CeOx coated Lu doped HZO film. In addition, the CeOx coating can remarkably improve the fatigue resistance and retention performance of the Lu doped HZO films. It is hoped that the results can provide an effective approach for the realization of high-performance and highly reliable hafnium oxide based ferroelectric thin films.
研究领域:
材料科学
·
铁电材料
·
薄膜
✓ 已验证
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 12
·e6591
·
IF 3.1
Chuanbo Cong,Mingyang Yuan,Han Wang,Rehan Umer,Daigang Peng,Jianglin Ouyang
In order to improve the thermal stability of silicone rubber (SR), cerium-tin composite oxides (CeSnO-x) are used as thermo-oxidative stabilizer in phenyl methyl vinyl silicone rubber (PVMQ). CeSnO-x are synthesized via the sol–gel method and characterized by scanning electron microscopy, x-ray diffraction, and X-ray photoelectron spectroscopy (XPS) showing that tin doping led to more oxygen vacancies in CeSnO-x compared to CeO 2 . Through thermogravimetric analyzer, differential scanning alorimetry (DSC) and average activation energy calculation of PVMQ with different thermo-oxidative stabilizer, it was found that CeSnO-8 is outperforming CeO 2 , SnO 2 , and their mixtures in improving the thermo-oxidative stability of PVMQ. In mechanical property tests, due to tin doping, CeSnO-8 exhibit superior performance at all stages during thermo-oxidative aging comparing the different effects of CeO 2 and SnO 2 in different aging stages. XPS of PVMQ composites investigate the mechanism by which CeSnO-8 exhibit different effects. Fourier transform infrared spectroscopy characterizing the Si-C and Si-O bond changes in PVMQ composite before and after aging and the measurement of Mc explore thermo-oxidative stabilizers' role during thermo-oxidative aging of PVMQ. Thermogravimetry-infrared spectroscopy comparisons between unstabilized PVMQ and CeSnO-8-stabilized PVMQ show that CeSnO-8 effectively quenched radicals produced by the oxidation of the PVMQ side group, but exacerbate degradation caused by molecular chain rearrangement.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
THIN SOLID FILMS
·
2024
·
IF 2
Wenjin Zeng,Yuting Shi,Chaochao Yuan,Enzhi Li,Jiahao Li,Qiaoli Niu,Ruidong Xia,Yong Min,Xinwen Peng
The quality of the hole transport layer (HTL) is crucial for the overall efficiency of the perovskite solar cells. Although poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonic acid) (PEDOT:PSS) has been widely used as HTL for the perovskite solar cells, there is still room for further improvement of PEDOT:PSS by optimizing its energy level matching and the hole transfer efficiency. Based on the present issues of applying PEDOT:PSS as HTL in tin-based perovskite solar cells, the Lewis alkali acrylamide (AM), which contains both carbon-carbon double bond and the electrophilic amide group, is applied as the dopant in PEDOT:PSS solution. By analyzing the surface morphology and the crystal structure, it is revealed that AM can effectively improve both the quality and crystallinity of the formamidinium tin tri-iodide (FASnI 3 ) perovskite film, with the defects of the perovskite film greatly suppressed. The grain size of the modified FASnI 3 perovskite is observed to increase with the surface roughness reducing at the same time, along with the charge recombination resistance of the FASnI 3 perovskite film increasing. As a result, the modified devices have a higher short-circuit current, fill factor as well as power conversion efficiency. The characterization of the surface contact angle indicates that a more hydrophobic surface is formed as for the FASnI 3 perovskite film, which could efficiently retard the ambient vapor penetrating into the perovskite film.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Joule
·
2024
·
IF 38.6
Zuhao Yu,Qiong Wang,Yating Li,Fengyi Zhang,Xiaohui Ma,Xi Zhang,Yonggang Wang,Jianhang Huang,Yongyao Xia
Non-toxic metallic tin (Sn) possesses high hydrogen overpotential and environmental friendliness, which is favorable for high-performance aqueous batteries. However, the large particle size and irregular deposition morphology of Sn in acidic electrolyte dramatically decrease cycle stability. Here, we demonstrated that the inherent root for above issues is the high exchange current density of Sn/Sn 2+ in acidic electrolyte, and two effective approaches were presented (gelatin additives and methanesulfonic acid-based electrolyte). In particular, the methanesulfonic-acid-based electrolyte with unique complexing environment not only improves uniformity of deposited Sn but also suppresses the hydrogen evolution, conferring Sn/Sn 2+ with high average Coulombic efficiency of 99.95%. The assembled anode-free organic/Sn battery with lean electrolyte can exert unprecedented stability more than 4,000 cycles. Moreover, a scale-up anode-free battery with 23 mAh capacity sustained more than 1,000 cycles. The findings provide universal strategies to improve the stability of the Sn cycle, marking a solid step toward the practical application.
研究领域:
电化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Peigen Zhang,Tianyu Wang,Pei Ding,Feiyue Hu,Zhenglin Zou,Wei He,Vamsi Borra,Qinning Gao,Hanning Zhang,Jingwen Tang,Wei Zheng,ZhengMing Sun
Aqueous zinc-ion batteries (AZIBs) offer high safety, low cost, and environmental compatibility, yet their large-scale deployment is hindered by dendrite growth and severe side reactions arising from non-uniform Zn 2+ deposition. Constructing artificial interphase layers (AILs) to regulate Zn 2+ nucleation and growth has emerged as an effective strategy to mitigate these issues. One-dimensional (1D) Sn metal, featuring a high specific surface area, tunable structure, strong zinc affinity, and high hydrogen evolution overpotential, is an ideal candidate for interphase engineering. However, existing synthesis methods for 1D Sn, which rely on template-assisted electrodeposition, face challenges in scalability. In this work, Sn whiskers are synthesized via the mechanochemical decomposition of the Ti 2 SnC MAX phase and employed to construct a three-dimensional (3D) Sn whisker network as an artificial interphase layer on zinc anodes (Sn whisker@Zn). This continuous network effectively guides Zn 2+ migration and deposition, promotes preferential growth along the (002) crystal plane, reduces local current density, and suppresses dendrite formation. Simultaneously, it retards corrosion and inhibits the formation of by-products. Symmetric cells based on Sn whisker@Zn anodes exhibit exceptional cycling stability, sustaining over 1600 h of stable operation at 1 mA cm −2 with a capacity of 0.5 mAh cm −2 , and exceeding 1000 h at a high current density of 10 mA cm −2 . Moreover, the Sn whisker@Zn||NH 4 V 4 O 10 full cell retains 89.94 % of its capacity after 1400 cycles at 5 A g −1 , demonstrating strong application potential. This approach provides a scalable and effective strategy for developing durable zinc anodes, advancing the prospects of AZIBs in energy storage systems.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
金属腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 6
·3202-3208
·
IF 3.361
Wei-Qi Li,Duan Liu,Ji-Yan Qu,Jian-Hong Luo
In this work, an outstanding nanolayered tin phosphate with 15.0 Å interlayer spacing, Sn (HPO4)2·3H2O (SnP–H+), has been synthesized by conventional hydrothermal method and first used in the adsorptive removal of Cr(III) from aqueous solution. A number of factors such as contact time, initial concentration of Cr(III), temperature, pH, and ionic strength on adsorption were investigated by batch tests. Moreover, the isothermal adsorption characteristics and kinetic model of Cr(III) onto SnP–H+ were studied. The results showed that the adsorption of Cr(III) by SnP–H+ was in accordance with the Langmuir adsorption isotherm model and the pseudo-second-order kinetic model. The adsorption capacity of Cr(III) onto SnP–H+ at temperature 40.0 °C and pH 3.0 could reach 81.1 mg g−1. And the distribution coefficient Kd was 23.0 g L−1. Overall, experiments certified that SnP–H+ was an excellent adsorbent that can effectively remove Cr(III) from aqueous solution.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Qiqi Zhang,Zhifang Shi,Qixi Mi
Doping Mn 2+ brings in new energy levels to a variety of II-VI family and perovskite semiconductors. Although the Mn 2+ luminescence in most cases appears yellow to orange, photoexcitation of the tin-based perovskite material CsSn 0.9 Mn 0.1 Cl 3 (CTMC) leads to an unusual red emission at 647 nm. Characterizations using time-resolved photoluminescence (PL) and electron paramagnetic resonance (EPR) indicate that most of the Mn 2+ contents in CTMC are clustered like trimer chloromanganates, which accept photoexcitation energy from the perovskite matrix and acts as emission centers. These results are in sharp contrast from Mn 2+ -doped CsCaCl 3 or CsPbCl 3 , where individual Mn 2+ centers dominate the PL and EPR spectra . Our results provide a new approach to broadening the color range of Mn 2+ emission in perovskite semiconductors.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 15
·3865-3873
·
IF 7.779
Kunjie Liu,Shiqiang Hao,Jindong Cao,Jiawei Lin,Liubing Fan,Xusheng Zhang,Zhongnan Guo,Christopher Wolverton,Jing Zhao,Quanlin Liu
Lead-based organic–inorganic metal halides (OIMHs) have recently attracted special attention due to their efficient broadband photoluminescence. However, the toxicity of lead poses a challenge for their further development. Here, we selected Sn(IV) as the metal center to synthesize the environmentally friendly and stable luminescent OIMHs (C9H15N3)2SnCl8 and (C9H15N3)2SnBr8 (C9H13N3 is 1-(2-pyridyl)piperazine). Both compounds possess zero-dimensional structures, crystallizing in the monoclinic space group P21/c, and their optical band gaps were experimentally determined to be 3.19 and 2.60 eV, respectively. Under UV excitation at room temperature, (C9H15N3)2SnCl8 exhibited double-peak emissions centered at 405 and 688 nm, which were attributed to the organic cation and inorganic octahedra, respectively. Upon introducing 5s2-lone-pair-containing Sb3+ in (C9H15N3)2SnCl8, self-trapped emission was promoted, and the photoluminescence quantum yield increased from ∼1% to ∼17.84%. This work suggests effective strategies for finding environmentally friendly stable OIMHs and for further enhancing the luminescence properties through lone-pair-containing cation doping.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
MATERIALS LETTERS
·
2022
·
IF 3.574
Chensheng Wang,Weifeng Li,Yumei Long
This work demonstrates a facile molten-salt synthesis of carbon-titanium nitride (C-TiN) nanocomposites. The C-TiN nanoparticles showed excellent electrocatalytic activity and thus were employed for the electrochemical determination of dopamine (DA). By using a differential pulse voltammetry (DPV) method, a C-TiN modified glassy carbon electrode (C-TiN/GCE) presented a high sensitivity (9620 µA·µM·cm −2 ) in the determination of DA and its detection limit (LOD) was 0.03 µM (S/N = 3). Moreover, the C-TiN/GCE sensor was used to detect DA in human serum, and acceptable recoveries were obtained.
研究领域:
材料科学
·
分析化学
·
生物医学工程
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 10
·期 12
·2200168
·
IF 10.05
Baoqing Wang,Zhimin Jing,Mingxi Zhao,Peng Yu,Eric Ashalley,Peihang Li,Cuiping Ma,Xin Tong,Roberto Caputo,Alexander O. Govorov,Hongxing Xu,Zhiming M. Wang
Photothermal superhydrophobic coatings are essential for a variety of applications including anti-icing and light-driven self-propelled motion. However, achieving a flexible and durable superhydrophobic coating with high photothermal efficiency and long-term stability is still challenging. Herein, a facile and eco-friendly approach to realizing a superhydrophobic coating with excellent flexibility is proposed. The coating is obtained by spraying titanium nitride (TiN) nanoparticles embedded in polydimethylsiloxane (PDMS) solution onto various substrates. A tight binding between the substrate and nanoparticles occurs that offers the coating the mechanical robustness to endure bending, twisting, abrasion, and tape peeling. The water repellency is retained even after 500 cycles of bending–twisting tests. Combined with the micro–nanoscale porous structure of the surface and plasmonic property of TiN nanoparticles, the coating shows excellent superhydrophobicity and high photothermal conversion properties. The equilibrium temperature of the coating is as high as 130 °C at room temperature under 1 W cm −2 of 808 nm near-infrared laser irradiation. Due to its flexible property, the coating can be easily applied to irregular surfaces, which, together with the excellent anticorrosion, anti-icing, and defrosting performances, makes it a reliable resource for multifunctional applications. This work offers a novel technological approach to flexible devices, wearable electronics, and smart textiles.
研究领域:
材料科学
·
纳米技术
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Jinbiao Yang,Lidong Gao,Yuede Pan,Yeliang Jiao,Zhewei Yang,Gang Li,Kaiying Wang
Tin disulfide (SnS 2 ) is a promising anode material for sodium ion storage. In this study, we present a SnS 2 /4S composite with a molar ratio of 1:4 between SnS 2 and S, which was prepared through a simple melt-diffusion method, showing excellent sodium ion storage performance. The elemental sulfur in the composite provides additional capacity with its high specific capacity (1675 mAh g −1 ) and facilitates the interfacial charge transfer between the electrode and the electrolyte because soluble polysulfide anions can be formed during charge and discharge. Thus, the specific capacity of SnS 2 /4S has been maintained at 540.2 mAh g −1 after 150 cycles at a high current density of 5 A g −1 . In addition, the initial discharge capacity of the full cell SnS 2 /4S||Na 3 V 2 (PO 4 ) 3 is 555.1 mAh g −1 with a capacity retention of 95.7 % during 50 cycles. Our work provides a new composite engineering approach for the sodium ion storage study of SnS 2 .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Energy Materials
·
2026
·Vol. 6
·期 8
·N
·
IF 11.9
Leyan She\u003Csup\u003E1\u003C\u002Fsup\u003E,Jiaxin Meng\u003Csup\u003E1\u003C\u002Fsup\u003E,Lide Li\u003Csup\u003E1\u003C\u002Fsup\u003E,Litao Liang\u003Csup\u003E1\u003C\u002Fsup\u003E,Routong Chen\u003Csup\u003E1\u003C\u002Fsup\u003E,Shiyi Tan\u003Csup\u003E1\u003C\u002Fsup\u003E,Guozhen Zhang\u003Csup\u003E1\u003C\u002Fsup\u003E,He Liu\u003Csup\u003E1\u003C\u002Fsup\u003E,Cong Guo\u003Csup\u003E1\u003C\u002Fsup\u003E,Weizhai Bao\u003Csup\u003E1\u003C\u002Fsup\u003E,Jingfa Li\u003Csup\u003E1\u003C\u002Fsup\u003E,Qian Liu\u003Csup\u003E2\u003C\u002Fsup\u003E,Feng Yu\u003Csup\u003E1,\u003C\u002Fsup\u003E,Hongxia Wang\u003Csup\u003E2,\u003C\u002Fsup\u003E
Aqueous bromine batteries hold promise for safe and low-cost large-scale energy storage, but their practical energy density is limited by the restricted voltage of conventional single-electrolyte systems. Herein, we develop a pH-asymmetric aqueous Sn-Br battery by decoupling an acidic bromine catholyte from an alkaline Sn anolyte using a bipolar membrane. The acidic catholyte maintains reversible Br-/Br3- conversion, whereas the alkaline anolyte enables low-potential Sn hydroxo-complex redox chemistry. This acid-alkaline configuration converts the pH-dependent redox asymmetry of Sn into an enlarged full-cell voltage window. A surface-regulated Sn anode is further employed to improve interfacial stability and redox reversibility, while the voltage enhancement primarily originates from pH-decoupled Sn-Br redox chemistry. Potential-alignment analysis shows that switching Sn from acidic Sn/Sn2+ redox to alkaline hydroxo-complex redox increases the theoretical Sn-Br potential gap from approximately 1.2 V to above 2.0 V. In situ Ultraviolet-Visible (UV-vis) Absorption spectroscopy confirms reversible bromine-species evolution during charge/discharge, demonstrating the compatibility of bromine redox chemistry with high-voltage operation. The resulting pH-asymmetric Sn-Br full cell achieves a voltage window of up to 2.3 V, delivers a specific capacity of approximately 172.2 mAh g-1 at 3 A g-1, and maintains 98% capacity retention over 6,000 cycles with Coulombic efficiency above 97%. This study highlights pH decoupling as a powerful strategy for designing high-voltage aqueous conversion batteries based on pH-dependent metal redox chemistry.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）