Small
·
2022
·Vol. 18
·期 25
·2201377
·
IF 15.153
Yue Jiang,Jinfa Ou,Zichang Luo,Yonghui Chen,Zihuan Wu,Heng Wu,Xiaobo Fu,Shaojuan Luo,Yang Huang
In virtue of the high electrochemical activity and inherent flexibility, polyaniline (PANI) is an ideal electrode material for flexible supercapacitors (SCs). However, in practical applications, the inevitable agglomeration of PANI leads to low capacitance, poor rate performance, and cycling stability. Here, antimonene (Sb) nanosheets with ultrathin thickness, excellent mechanical strength, and flexibility are introduced into the carbon nanotube (CNT) framework for PANI electrodeposition via simple vacuum filtration, which enables the continuous and uniform growth of PANI. The resultant free-standing Sb/CNT/PANI electrode can thus exhibit a high specific capacitance of 578.57 F g −1 together with a high rate capability. Besides, thanks to the introduction of Sb nanosheets, the agglomeration of PANI during the electrodeposition is improved, which correspondingly alleviates the structural deterioration of PANI during repeated charge/discharge. Thus, the flexible SC assembled by Sb/CNT/PANI electrodes demonstrates both an impressive specific capacitance of 416 F g −1 and outstanding cycling stability over 12 000 cycles. Moreover, this SC device can have a practical self-healing function by employing self-healable polyurethane. The facile strategy reported herein sheds light on the design of high-performance flexible SCs, catering to the needs of portable and wearable electronics.
研究领域:
材料科学
·
纳米科技
·
电化学
·
能源存储
·
柔性电子学
✓ 已验证
DOI
高影响因子
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
·
2016
·
IF 3.433
Dong Wang,Kaiwen Guan,Zhiping Bai,Fuqiang Liu
A new facile coating strategy based on the hydrophobicity of methyl groups was developed to prevent nano-sized magnetite particles from strong acid corrosion. In this method, three steps of hydrolysis led to three layers of protection shell coating Fe3O4 nanoparticles. Filled with hydrophobic methyl groups, the middle layer mainly prevented the magnetic core from strong acid corrosion. These magnetite particles managed to resist 1 M HCl solution and 2.5 M H2SO4 solution. The acid resistant ability was higher than those reported previously. After further modification with amino-methylene-phosphonic groups, these magnetite particles successfully adsorbed Sb(III) in strong acid solution. This new strategy can also be applied to protect other materials from strong acid corrosion.
研究领域:
环境化学
·
材料科学
·
纳米技术
·
污染控制
·
吸附材料
✓ 已验证
DOI
高影响因子
Nature Communications
·
2018
·Vol. 9
·期 1
·1-10
·
IF 12.353
Wen Xixing,Chen Chao,Lu Shuaicheng,Li Kanghua,Kondrotas Rokas,Zhao Yang,Chen Wenhao,Gao Liang,Wang Chong,Zhang Jun,Niu Guangda,Tang Jiang
Antimony selenide is an emerging promising thin film photovoltaic material thanks to its binary composition, suitable bandgap, high absorption coefficient, inert grain boundaries and earth-abundant constituents. However, current devices produced from rapid thermal evaporation strategy suffer from low-quality film and unsatisfactory performance. Herein, we develop a vapor transport deposition technique to fabricate antimony selenide films, a technique that enables continuous and low-cost manufacturing of cadmium telluride solar cells. We improve the crystallinity of antimony selenide films and then successfully produce superstrate cadmium sulfide/antimony selenide solar cells with a certified power conversion efficiency of 7.6%, a net 2% improvement over previous 5.6% record of the same device configuration. We analyze the deep defects in antimony selenide solar cells, and find that the density of the dominant deep defects is reduced by one order of magnitude using vapor transport deposition process.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2019
·
IF 2.6
S.J. Huang,Y.B. Xiao,J.L. Liu,Y. Ji,L.Y. Mao,W.C. Wang
In this work, a multicomponent GeO 2 –Sb 2 O 3 –BaO (BSG) glass is explored to assess its potential for 1.06 μm fiber lasers . The glass-forming region of BSG system is predicted and determined experimentally based on a thermodynamic method. Benefitting from the incorporation of Sb 2 O 3 , this system possesses an exceptionally large glass-forming region, as well as high density and refractive index , wide infrared transmission range and low phonon energy. Furthermore, an efficient near-infrared emission at 1064 nm from Nd 3+ has been realized in this oxide glass with relatively long measured lifetime (200.58 ± 1.24 μs) and large emission cross-section (3.015 ± 0.090 × 10 −20 cm 2 ), indicating that Nd 3+ -doped BSG glass is a promising candidate for laser application in 1.06 μm region.
研究领域:
光学材料
·
玻璃科学
·
激光物理
·
无机非金属材料
·
光子学
✓ 已验证
DOI
高影响因子
Functional Materials Letters
·
2024
·
IF 1.2
Kangjun Geng,Zhengdong Feng,Tingyu Zhang,Shan Huang,Honcheng Zhu,Bangzhi Shen,Boning Dong,Yan Yan,Sai Jiang,Jianhua Qiu,Huafei Guo
Antimony Selenide (Sb 2 Se 3 ) exhibits potential as a solar energy material owing to its optimal bandgap, lack of toxicity, and abundance of earth abundant elements. Currently, cadmium sulfide (CdS) serves as the predominant buffer layer for Sb 2 Se 3 solar cells. However, the use of CdS hinders environmentally friendly advancement due to the toxic properties of the element cadmium. Hence, the quest for non-toxic buffer layers poses a significant challenge to the further advancement of Sb 2 Se 3 solar cells. In prior research, tin oxide (SnO 2 ) has been explored as a buffer layer. Nonetheless, the efficiency of SnO 2 /Sb 2 Se 3 solar cells was hampered by the rough surface of SnO 2 films and the poor crystallinity of Sb 2 Se 3 films. In this investigation, we enhanced device efficiency by improving the uniformity of the SnO 2 surface and enhancing the crystallinity of Sb 2 Se 3 through spin-coating sulfur (S) onto the SnO 2 film. Detailed examinations were conducted on the structure, optical, and electrical properties of the respective SnO 2 and Sb 2 Se 3 thin films. Ultimately, an efficiency of 3.38% was achieved using the spin-coated S:SnO 2 film, marking an 85% enhancement compared to the baseline device.
研究领域:
光伏技术
·
材料科学
·
薄膜技术
·
可再生能源
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yingxiang Li,Zegui Hou,Ammar Oad,Deyin Liang,Fengbo Zhou,Fei Wang,Bin Tang,Zixuan Fang,Zitao Shi,Jingjing Chen,Chuansheng He,Wei Liu,Tingting Liao
Ceramics of Y 2 GaSbO 7 (YGSO) were prepared by the solid-state reaction method. The ceramics were confirmed by XRD and TEM to exhibit the Fd-3 m (227) space group and a cubic pyrochlore structure within the temperature range of 1420–1500 °C. XPS verified that the valence states of Y, Ga, and Sb in the ceramics were + 3, + 3, and + 5, respectively. Additionally, the relationship between the FWHM of the notable peak at 775 cm −1 and the Q × f value was elucidated through Raman spectroscopic analysis. The analysis of the P-V-L theory revealed that the Sb-O bond is crucial in determining ε r , while the values of τ f and Q × f are affected by the Y-O bond. At 1460 °C, YGSO ceramics obtained the maximum relative density (97.5%) and the best microwave dielectric properties ( ε r = 14.78, Q × f = 50,153 GHz, and τ f = –22.3 ppm/°C).
研究领域:
材料科学
·
无机化学
✓ 已验证
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Jinzhe Li,Zhengkang Xu,Tian Li,Dandan Zhi,Yao Chen,Quanhong Lu,Jingjing Wang,Qian Liu,Fanbin Meng
The rapid development of high performance detection technology promotes the innovation of stealth technology moving towards the direction of multi-band compatibility, but suffers great challenges. Especially for the widely used radar detection and infrared detection, how to overcome the contradiction between their corresponding stealth materials and develop high-performance stealth materials with microwave-infrared compatible property is extremely urgent. Herein, flexible cellular reduced graphene oxide aerogels modulated by antimony tin oxide (ATO/rGO) have been synthesized by self-assembly, which demonstrate excellent microwave-infrared stealth compatibility. Remarkably, the aerogel exhibits dual-absorption in microwave stealth caused by strong interface polarization, achieving the maximum reflection loss (RL) of −40.92 dB at 11.36 GHz coupled with another absorption peak of −19.82 dB at 16.64 GHz and a broadest effective absorption bandwidth of 9.8 GHz covering the X band and Ku band, which can be verified by electromagnetic finite element method simulation. Moreover, trace amount of loss components ATO in conductive network structure guarantee the low infrared emissivity (0.383) and thermal insulation synchronously, which is the key to compatibility with infrared stealth. The light ATO/rGO aerogels demonstrate the great prospect for anti-detection and security protection, providing a novel approach for multispectral compatible stealth.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Weimin Chen,Renjian Deng,Yilin Chen,Chuang Wang,Baolin Hou,Saijun Zhou,Andrew Hursthouse
Arsenic and antimony removal technology have received significant attention due to their considerable danger to aquatic ecosystems. In this study, we designed HCO–(Fe 3 O 4 ) x adsorbents with substantial functional groups, ample pore spaces, and considerable surface area , specially tailored for the simultaneous adsorption of pentavalent arsenic (As( V )) and pentavalent antimony (Sb(V)). The adsorption performance of HCO–(Fe 3 O 4 ) x was subjected variably to the Ce/Fe molar ratio (CFMR), solution pH, and co-existing anions (SO 4 2− , PO 4 3− , SiO 3 2− ). The affinity order of As(V) and Sb(V) onto HCO–(Fe 3 O 4 ) x in binary systems was pH-dependent. At a pH of 2.0, Sb( V ) exhibited stronger adsorption than As(V), whereas the opposite trend occurred at pH levels above 4.0. Analysis of the kinetic data revealed the pseudo-second-order kinetic model was the most appropriate, indicating that chemical adsorption was the predominant mechanism. Notably, the formation of inner-sphere complexes led to a higher adsorption rate for As( V ) compared to Sb(V), attributed to a lower energy barrier of 0.863 eV, facilitating the breakdown of the Fe O bond in As(V)'s asymmetric tetrahedral structure. Various analyses (FTIR, XRD, and XPS) demonstrated that adsorption mechanisms involved multiple processes like hydrogen bonding , ligand exchange, electrostatic attraction, and complexation. The primary contributions for the adsorption of As( V ) and Sb(V) were the inner-sphere complex of cerium , oxygen and arsenic atoms (Ce O As) and the outer-sphere complex of iron, oxygen and antimony atoms (Fe O Sb), respectively, indicating significant differences in the mechanisms. These findings underscored the potential of HCO–(Fe 3 O 4 ) x in mitigating As( V ) and Sb(V) water pollution, emphasizing its considerable promise as an effective remediation agent.
研究领域:
环境化学
·
水污染治理
·
吸附科学
·
环境功能材料
·
重金属去除
✓ 已验证
DOI
高影响因子
Energy Technology
·
2019
·Vol. 7
·期 6
·1801022
·
IF 3.163
Yang Liu,Qiang Ru,Yuqing Gao,Ping Gao,Fuming Chen,Lingzhi Zhao,Xianhua Hou
Antimony and red phosphorus (RP) hybrid is harvested via a facile mechanical milling strategy. Simultaneously, graphene sheets are introduced to boost the electronic transmission and mitigate the agglomeration of particles. In contrast to pristine Sb and RP electrodes, Sb/P/C hybrid affords comparably promising electrochemical performances. As anodes for lithium-ion batteries, Sb/P/C electrode depicts a reversible capacity of 869 mAh g −1 under 200 mA g −1 after 50 cycles and an excellent rate stability such as 452 mAh g −1 at 3200 mA g −1 . When used for sodium-ion batteries, the hybrid also shows moderate capacities of 544.8 and 511 mAh g −1 at the current of 50 and 200 mA g −1 after 50 cycles, respectively. These excellent properties can be ascribed to the synergetic effect of decreased particle size of milled Sb/P/C, large contact area, adequate energy storage sites, and enhanced electrical conductivity.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
无机化学
·
固体物理
·
电池技术
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2019
·
IF 2.687
Feng Zhang,Xiantao Jiang,Zhiliang He,Weiyuan Liang,Shixiang Xu,Han Zhang
Antimonene (Sb), a novel 2D crystalline, has recently received intense attention from optoelectronic communities, due to its enticing physical and chemical properties. Here we systematically investigate the broadband third-order nonlinear optical properties and carrier dynamics in antimonene. Efficient saturable absorption effect was observed at different wavelengths, indicating the use for broadband ultrafast laser generation. The nonlinear refractive indexes were characterized to be (2.55 ± 0.23) × 10 −14 cm 2 /W and (7.88 ± 0.37) × 10 −15 cm 2 /W at 800 nm and 1500 nm, respectively. Photoinduced carrier dynamics are investigated by a non-degenerate transient absorption spectrometer. Fast recovery processes were observed in antimonene and suggesting a high optical modulation speed to 500 GHz.
研究领域:
光学材料
·
凝聚态物理
·
纳米光子学
·
非线性光学
·
超快光谱学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Mingyu Yang,Kui Liu,Longcheng Yang,Guoren Yang,Lan Tong,Xianqing Liu,Fang Xu
Herein, first-principles calculations predicted the atomic-scale variation of Sb 5+ substitution for ZnZrTa 2 O 8 , and combined with the solid-phase reaction method to prepare ZnZr(Ta 1- x Sb x ) 2 O 8 (0.0 ≤ x ≤ 0.10) ceramics. ZnZr(Ta 0.94 Sb 0.06 ) 2 O 8 ceramics demonstrated the optimum microwave dielectric properties after sintering at 1350 °C for 6 h: ε r = 24.92, Q × f = 134053 GHz (@7.18 GHz), and τ f = −46.21 ppm/°C. For the non-intrinsic factors, the relative density increased from 96.54 % to 97.74 % and the average grain size increased from 19.88 μm to 21.85 μm, both of which reduced the dielectric loss . Regarding intrinsic factors, the progressive elevation of the Raman characteristic peak wave number and the heightened ionicity of Ta/Sb–O bonds predominantly account for the observed enhancement in εr. In addition, the attenuation of lattice vibrational damping behavior, the augmentation in electron cloud density, and the escalation of lattice energy collectively contribute to a decrement in dielectric loss . This study refines the examination of ionic substitution in ZnZrTa 2 O 8 ceramics, offering theoretical insights for optimizing their dielectric properties and promoting their application in microwave communications.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
ACS Nano
·
2017
·
IF 13.942
Jian Zhang,Ying Yang,Hui Deng,Umar Farooq,Xiaokun Yang,Jahangeer Khan,Jiang Tang,Haisheng Song
Colloidal quantum dots (QDs) of lead halide perovskite have recently received great attention owing to their remarkable performances in optoelectronic applications. However, their wide applications are hindered from toxic lead element, which is not environment- and consumer-friendly. Herein, we utilized heterovalent substitution of divalent lead (Pb2+) with trivalent antimony (Sb3+) to synthesize stable and brightly luminescent Cs3Sb2Br9 QDs. The lead-free, full-inorganic QDs were fabricated by a modified ligand-assisted reprecipitation strategy. A photoluminescence quantum yield (PLQY) was determined to be 46% at 410 nm, which was superior to that of other reported halide perovskite QDs. The PL enhancement mechanism was unraveled by surface composition derived quantum-well band structure and their large exciton binding energy. The Br-rich surface and the observed 530 meV exciton binding energy were proposed to guarantee the efficient radiative recombination. In addition, we can also tune the inorganic perovskite QD (Cs3Sb2X9) emission wavelength from 370 to 560 nm via anion exchange reactions. The developed full-inorganic lead-free Sb-perovskite QDs with high PLQY and stable emission promise great potential for efficient emission candidates.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）