Journal of Materials Chemistry A
·
2023
·
IF 11.9
Zhenkuang Lei,Mingqiang Ning,Xueheng Zhuang,Qikui Man,Baogen Shen
The engineering of heterogeneous interfaces is an effective way to develop high-performance electromagnetic wave (EMW) absorbing materials. In this work, density functional theory (DFT) calculations were used to predict the SnO2/SnS2 heterointerface effect for boosting electromagnetic wave loss. Then a method for constructing SnO2/SnS2 heterostructures by modulating the SnO2 precursor on carbon cloth (CC) with controlled sulfurization is proposed. Benefiting from the introduction of SnO2/SnS2 heterostructures, the S-2 absorber achieves a minimum reflection loss (RLmin) of −50.9 dB and maximum EAB up to 4.18 GHz with a matching thickness of 5.0 mm and 1.5 mm. Moreover, the materials also exhibit strong hydrophobicity and high electrical conductivity, giving them potential applications such as self-cleaning, and good electrical and thermal properties. This study provides an insight into the mechanism of heterogeneous interfaces for enhancing the attenuation capability of EMW and opens avenues for developing high-performance absorbers.
研究领域:
材料科学
·
电磁学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2019
·
IF 9.518
Di Huang,Lu Wang,Yi Zhan,Lina Zou,Baoxian Ye
A novel signal on-off type photoelectrochemical (PEC) biosensing system was designed for sensitive detection of carcinoembryonic antigen (CEA) based on tin disulfide nanosheets loaded on reduced graphene cxide (SnS 2 -GR) as the photoactive material and gold nanoparticles coated on reduced graphene oxide-functionalized copper sulfide ( [email protected] ) for signal amplification . It's the first time for SnS 2 -GR was exploited as a sensing matrix. Here, the photocurrent signals of SnS 2 were amplified attributed to the sensitization effect of graphene. As signal amplifier, [email protected] could quench the photocurrents of SnS 2 -GR not only through the p-n type semiconductor quenching effect as well as the steric hindrance effect, but also as peroxidase mimetics to catalyze the oxidation of 4-Chloro-1-naphthol (4-CN) to produce insoluble product on the electrode surface . Based on the multiple signal amplification ability of [email protected] , CEA was detected sensitively with a linear range from 0.1 pg mL −1 to 10 ng mL −1 and limit of detection down to 59.9 fg mL −1 (S/N = 3). Meanwhile, the PEC biosensor displayed excellent performance in the assay of human serum sample, showing good application prospects for various target analysis.
研究领域:
生物传感
·
纳米技术
·
分析化学
·
癌症诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2023
·Vol. 11
·期 4
·2306711
·
IF 15.1
Fanghua Liang,Huilong Dong,Jiamu Dai,Honggang He,Wei Zhang,Shi Chen,Dong Lv,Hui Liu,Ick Soo Kim,Yuekun Lai,Yuxin Tang,Mingzheng Ge
The development of conversion-typed anodes with ultrafast charging and large energy storage is quite challenging due to the sluggish ions/electrons transfer kinetics in bulk materials and fracture of the active materials. Herein, the design of porous carbon nanofibers/SnS 2 composite (SnS 2 @N-HPCNFs) for high-rate energy storage, where the ultrathin SnS 2 nanosheets are nanoconfined in N-doped carbon nanofibers with tunable void spaces, is reported. The highly interconnected carbon nanofibers in three-dimensional (3D) architecture provide a fast electron transfer pathway and alleviate the volume expansion of SnS 2 , while their hierarchical porous structure facilitates rapid ion diffusion. Specifically, the anode delivers a remarkable specific capacity of 1935.50 mAh g −1 at 0.1 C and excellent rate capability up to 30 C with a specific capacity of 289.60 mAh g −1 . Meanwhile, at a high rate of 20 C, the electrode displays a high capacity retention of 84% after 3000 cycles and a long cycle life of 10 000 cycles. This work provides a deep insight into the construction of electrodes with high ionic/electronic conductivity for fast-charging energy storage devices.
研究领域:
材料科学
·
电化学
·
能量存储
✓ 已验证
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2018
·
IF 8.173
Yaoguang Wang,Dawei Fan,Guanhui Zhao,Jinhui Feng,Dong Wei,Nuo Zhang,Wei Cao,Bin Du,Qin Wei
An ultrasensitive label-free photoelectrochemical (PEC) immunosensor with high visible-light activity was developed for quantitative detection of amyloid β-protein (Aβ) by cross-linking anti-Aβ antibody onto the Ag 2 S sensitized SnO 2 /SnS 2 nanocomposites . Specifically, SnO 2 with flower-like porous nanostructure was innovatively applied in PEC immunosensor as a basal material. It could form a heterostructure with SnS 2 , which brought about the sensitization of SnO 2 and enhanced the separation of photogenerated electrons and holes. Moreover, Ag 2 S was in-situ growth on the surface of SnO 2 /SnS 2 , which further enhanced the photocurrent response significantly. Therefore, SnO 2 /SnS 2 /Ag 2 S could form stepwise band-edge structure, which benefited the light harvesting and provided a good foundation for sensor construction and detection. Under optimal conditions, the PEC immunosensor was used to detect the content of Aβ and exhibited a wide linear concentration range from 0.5 pg mL −1 to 100 ng mL −1 , with low limit of detection (0.17 pg mL −1 ) and limit of quantification (0.56 pg mL −1 ). Additionally, the designed PEC immunosensor exhibited good reproducibility, specificity, and stability which may find potential applications in the biosensor, biomedicine , clinical diagnosis, photocatalysis and other related fields.
研究领域:
生物传感器
·
生物医学
·
临床诊断
·
光催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Jing Xia,Li Liu,Jianjun Xie,Hanxiao Yan,Yiting Yuan,Manfang Chen,Cheng Huang,Yue Zhang,Su Nie,Xianyou Wang
Layer-by-layered SnS 2 /graphene (LL-SnS 2 /G) hybrid nanosheets are fabricated via a simple ball-milling of SnS 2 nanoplates obtained through hydrothermal treatment and commercial graphene. When assessed as anode materials for LIBs , LL-SnS 2 /G shows a high initial reversible capacity of 696.27 mAh g −1 with a high initial coulombic efficiency (74.16%) at 200 mA g −1 , and negligible capacity fading over 180 cycles. Moreover, LL-SnS 2 /G also has an excellent rate capability, which delivers a high capacity of 567.78 mAh g −1 at 2000 mA g −1 . Benefits from synergism between SnS 2 nanoplates with high specific capacity and graphene, the graphene increases the conductivity of SnS 2 , buffers the volume change during lithiation/de-lithiation processes, and provides an effective physical barrier between the active materials and the electrolyte to suppress the shuttle effect of polysulfides formed during de-lithiation processes. LL-SnS 2 /G shows excellent electrochemical performance and is a promising anode material candidate for lithium ion batteries.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yan Huang,Daixin Ye,Jing Yang,Huan Lu,Li Li,Yaping Ding
Herein, based on the dual-signal strategy, an electrochemical sensor with molecularly imprinted polymer (MIP) was designed for the analysis of p-Hydroxyacetophenone (p-HAP) for the first time. The sensor was fabricated by modifying the electrode with NiFe prussian blue analogue (NiFe-PBA) and followed by SnS 2 , obtaining the dual-signal from [Fe(CN) 6 ] 3−/4− at 0.20 V and NiFe-PBA at 0.52 V. In the electropolymerization of the MIP film, o-phenylenediamine was used as functional monomer and p-HAP acted as template molecule. After the adsorption of p-HAP, the two above oxidation peak currents decreased simultaneously compared with the elution, achieving the dual-signal analysis. Under the optimal conditions, the sensor exhibited a wide linear range of 10 −13 M to 10 −7 M and a low detection limit of 3.52 × 10 −14 M (3σ). Moreover, it was successfully applied to the p-HAP detection in human serum and environment water samples with satisfactory recovery.
研究领域:
分析化学
·
电化学
·
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
SOLID STATE IONICS
·
2020
·
IF 3.107
Jian Liu,Ying-Ge Xu,Ling-Bin Kong
Sodium-ion batteries (SIBs) and Sodium-ion capacitors (SICs) have great promise for large-scale energy storage. However, the mismatch of electrode kinetics and charge-storage capacity between anode and cathode materials remains a challenge. Here three-dimensional self-assembled MoS 2 /SnS 2 -reduced graphene oxide (MoS 2 /SnS 2 -RGO) anode material with fast Na-ion diffusion rate and pseudocapacitive charge storage has been successfully prepared via a facile hydrothermal method . With this particular structure, the Na-ion diffusion coefficient of MoS 2 /SnS 2 -RGO calculated by GITT achieves 5.53 × 10 −7 cm 2 s −1 during the desodiation process, which effectively improves the reaction kinetics for anode material. When tested against metal sodium in the potential window of 0.01–3.00 V, the optimized MoS 2 /SnS 2 -RGO delivers an excellent reversible capacity of 818.9 mA h g −1 at a specific current of 100 mA g −1 after 100 cycles and a superior rate capability of 555.4 mA h g −1 at 2000 mA g −1 over 500 cycles. So far, MoS 2 /SnS 2 -RGO possesses the highest reversible capacity among the reported anode materials . Furthermore, a SIC composed of optimized MoS 2 /SnS 2 -RGO anode and a CC cathode reaches a high specific energy of 113.9 W h kg −1 at specific power of 561.25 W kg −1 . Similarly, a SIB consisted of the MoS 2 /SnS 2 -RGO anode and a Na 3 V 2 (PO 4 ) 3 /C cathode displays the reversible discharge capacity of 56 mA h g −1 at the high rates of 2 C.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 32
·10472-10477
·
IF 7.393
Xia An,Chao Fan,Xiancheng Meng,Shuo Yuan,Yongkai Jing,Zhe Liu,Chun Sun,Yonghui Zhang,Zihui Zhang,Mengjun Wang,Hongxing Zheng,Erping Li
As an emerging two-dimensional material, tin disulfide (SnS2) has attracted growing interest due to its superior performance in high-speed and high-sensitive photodetectors. However, low responsivity, large dark current, and slow response speed severely hinder its further practical application. Herein, the enhanced photodetection performance of Schottky photodetectors based on SnS2 nanosheets and Schottky contact effects on the photodetection performance were investigated. High-quality SnS2 nanosheets were synthesized via a facile hydrothermal method. Then Schottky photodetectors with Pt/SnS2/Al and Au/SnS2/Al structures were fabricated and detected. Compared to the Ohmic Al/SnS2/Al photodetector, the Schottky Pt/SnS2/Al and Au/SnS2/Al photodetectors exhibited better photodetection performances, including tenfold higher responsivities, tenfold lower dark currents, and slightly shorter response times. In particular, the Schottky Pt/SnS2/Al photodetector obtained a low dark current of 5.2 nA, a high responsivity of 952 μA W−1, and a response time of 0.13 s. The enhancement in the photodetection performance of the Schottky photodetectors is due to the reverse bias and built-in electric field caused by Schottky contacts. Our finding provides an effective approach to enhance the photodetection performance of SnS2-based photodetectors for high-performance optoelectronic applications.
研究领域:
材料科学
·
光电技术
✓ 已验证
产品关联
DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2021
·Vol. 33
·期 5
·2611-2616
·
IF 6.779
Lin Wang,Xinzhe Li,Chengjie Pei,Cong Wei,Jie Dai,Xiao Huang,Hai Li
The properties of two-dimensional (2D) materials are highly dependent on their phase and thickness. Various phases exist in tin disulfide (SnS 2 ), resulting in promising electronic and optical properties . Hence, accurately identifying the phase and thickness of SnS 2 nanosheets is prior to their optoelectronic applications . Herein, layered 2H-SnS 2 and 4H-SnS 2 crystals were grown by chemical vapor transportation and the crystalline phase of SnS 2 was characterized by X-ray diffraction, ultralow frequency (ULF) Raman spectroscopy and high-resolution transmission electron microscope . As-grown crystals were mechanically exfoliated to single- and few-layer nanosheets , which were investigated by optical microscopy, atomic force microscopy and ULF Raman spectroscopy . Although the 2H-SnS 2 and 4H-SnS 2 nanosheets have similar optical contrast on SiO 2 /Si substrates, their ULF Raman spectra obviously show different shear and breathing modes, which are highly dependent on their phases and thicknesses. Interestingly, the SnS 2 nanosheets have shown phase-dependent electrical properties. The 4H-SnS 2 nanosheet shows a current on/off ratio of 2.58 × 10 5 and excellent photosensitivity, which are much higher than those of the 2H-SnS 2 nanosheet. Our work not only offers an accurate method for identifying single- and few-layer SnS 2 nanosheets with different phases, but also paves the way for the application of SnS 2 nanosheets in high-performance optoelectronic devices .
研究领域:
材料科学
·
凝聚态物理
·
纳米科技
·
光电子学
·
表面与界面科学
✓ 已验证
DOI
高影响因子
IEEE ELECTRON DEVICE LETTERS
·
2023
·Vol. 44
·期 7
·1152-1155
·
IF 4.9
Weishuai Duan,Zhe Liu,Xinfa Zhu,Biao He,Chao Fan,Yonghui Zhang,Mengjun Wang,Hongxing Zheng,Erping Li
Near-ultraviolet (NUV) detectors based on two-dimensional (2D) materials have garnered considerable attention owing to their atomic-scale thickness, varied bandgap, and strong interaction with incident light. In this work, homostructures composed of tin disulfide/chromium–doped tin disulfide (SnS
2
/Cr–SnS
2
) were proposed for 405 nm near-ultraviolet detectors. Afterward, superlative detectors were fabricated through the employment of micro-mechanical exfoliation and polydimethylsiloxane-assisted dry-transfer methods, anchored by the SnS
2
Cr–SnS
2
homostructures. The detectors demonstrated exceptional detection performance for 405 nm NUV radiation with a significant responsivity of
$2.04\times 10^{{3}}\,\,\text {A}\cdot \text {W}^{-{1}}$
and a short response time of 8 ms, exceeding that of detectors based on most 2D materials and even commercial light detectors (Thorlabs FD11A–Si). The work presents an effective homostructure for high-performance SnS
2
-based detectors, thereby opening an opportunity for the utilization of SnS
2
in NUV detectors.
研究领域:
材料科学
·
光电子学
✓ 已验证
DOI
高影响因子
Science China-Materials
·
2021
·Vol. 65
·期 4
·1000-1011
·
IF 8.273
Luo Mingwei,Lu Chunhui,Liu Yuqi,Han Taotao,Ge Yanqing,Zhou Yixuan,Xu Xinlong
Heterostructures based on new advanced materials offer a cornerstone for future optoelectronic devices with improved photoelectric performance. Band alignment is crucial for understanding the mechanism of charge carrier transportation and interface dynamics in heterostructures. Herein, we grew SnS 2 /Bi 2 X 3 (X = Se, Te) van der Waals heterostructures by combining physical vapor deposition with chemical vapor deposition. The band alignment, measured by high-resolution X-ray photoelectron spectroscopy, suggested the successful design of type-I SnS 2 /Bi 2 Se 3 and type-II SnS 2 /Bi 2 Te 3 heterostructures. The SnS 2 /Bi 2 X 3 heterostructure greatly improved the photoelectric response of a photoelectrochemical-type photodetector. The photocurrent densities in the type-I SnS 2 /Bi 2 Se 3 and type-II SnS 2 /Bi 2 Te 3 heterostructure-based devices were more than one order of magnitude higher than those of SnS 2 , Bi 2 Se 3 , and Bi 2 Te 3 . The improved photoelectric properties of the SnS 2 /Bi 2 X 3 heterostructures can be explained as follows: (i) the photoexcited electrons and holes are effectively separated in the heterostructures; (ii) the charge-transfer efficiency and carrier density at the interface between the SnS 2 /Bi 2 X 3 heterostructures and the electrolyte are greatly improved; (iii) the formed heterostructures expand the light absorption range. The photoelectric performance was further enhanced by efficient light trapping in the upright SnS 2 . The photoelectric response is higher in the type-I SnS 2 /Bi 2 Se 3 heterostructure than in the type-II SnS 2 /Bi 2 Te 3 heterostructure due to more efficient charge transportation at the type-I SnS 2 /Bi 2 Se 3 heterostructure/electrolyte interface. These results suggest that suitable type-I and type-II heterostructures can be developed for high-performance photodetectors and other optoelectronic devices.
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2023
·
IF 8.4
Yaobing Fang,Wen Zheng,Tao Hu,Hong Xiao,Li Li,Wenhui Yuan
Graphical This Graphite paper/(SnS 2 -MoS 2 )@CNTs dual-ion battery shows excellent cycling performance and fast charging capacity, which could provide a new insight for the designing of high-performance energy storage device. Dual-ion batteries have been considered as a competitive energy-storage device. However, owing to the lack of suitable high-capacity density and rapid-charging electrode materials, designing a cost-effective and high-performance dual-ion battery is still a great challenge. Herein, an ultrahigh-capacity dual-ion battery is constructed based on a carbon-nanotubes (CNTs) containing SnS 2 -MoS 2 @CNTs heterojunction anode and highly crystalline free-standing graphite paper serves as cathode. The SnS 2 -MoS 2 @CNTs heterojunction consisting of ultrathin nanosheets was prepared via a facile two-step hydrothermal method and shows flower-like morphology and high crystallinity. Benefiting from the unique design concept, the graphite paper/SnS 2 -MoS 2 @CNTs dual-ion battery delivers a high capacity of 274.2 mAh g −1 at 100 mA g −1 and has an outstanding capacity retention of 95 % after 300 cycles under 400 mA g −1 . Even at a high current density of 2 A g −1 the battery still retains a considerable capacity of 112.3 mAh g −1 . More importantly, the battery shows an extremely low self-discharge of 0.006 % h −1 after resting for 24 h. Characterization using SEM and XRD further demonstrate the excellent cycling stability and good reversibility. Consequently, this constructed dual-ion battery could be a promising energy storage device and provide new insights for the design of high-performance dual-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）