ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yaping Cao,Hui Chen,Yupeng Shen,Mei Chen,Yelong Zhang,Lanying Zhang,Qian Wang,Shaojun Guo,Huai Yang
Potassium-ion batteries (KIBs) are emerging as the prospective alternatives to lithium-ion batteries in energy storage systems owing to the sufficient resources and relatively low cost of K-related materials. However, serious volume expansion and low specific capacity are found in most materials systems resulting from the large intrinsic radius of K+. Herein, SnS2 nanosheets anchored on nitrogen and sulfur co-doped MXene (SnS2 NSs/MXene) are creatively designed as advanced anode materials for KIBs. SnS2 NSs/MXene with a unique hierarchical structure can not only provide fast transmission channels for K+ but also avoid the accumulation of K+ and volume expansion. These novel features make SnS2 NSs/MXene electrodes exhibit a superior reversible specific capacity of 342.4 mA h g–1 under 50 mA g–1. Also, they maintain 206.1 mA h g–1 at an even higher current density of 0.5 A g–1 over 800 cycles almost without capacity decay. Moreover, the multistep alloying reaction mechanism of SnS2 NSs/MXene composites and K+ is revealed by the ex situ X-ray diffraction measurement. In addition, the density functional theory calculations confirm the existence of Ti–S bonds between SnS2 nanosheets and MXene, which significantly enhance the structural stability and cycling electrochemical performance of SnS2 NSs/MXene composites.
研究领域:
材料科学
·
电化学
·
能源存储
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Li Siyuan,Li Liyun,Liu Xu,Wang Yanlai,Wang Ligang
To address the high cost and scarcity of traditional platinum (Pt) counter electrodes, this study designed a novel non-Pt counter electrode material: nitrogen-doped hollow mesoporous carbon sphere (NCS)-loaded SnS 2 @SnO 2 heterojunctions (SnS 2 @SnO 2 /NCSs). By optimizing the mass ratio of Sn/S precursors to NCSs, the morphology of the composite was tailored. Comprehensive characterization via XRD, XPS, SEM, TEM, and Raman spectroscopy revealed that SnS 2 @SnO 2 nanoparticles (10–20 nm) were uniformly distributed within the internal/external walls and cavities of the NCSs via mesoporous confinement, forming a 3D conductive network. Nitrogen doping (I D /I G = 1.12) endowed the carbon matrix with abundant active sites, while the band alignment of the SnS 2 @SnO 2 heterojunction significantly enhanced catalytic activity. Electrochemical tests demonstrated a charge transfer resistance (R ct = 22.25 Ω·cm 2 ) close to Pt (15.78 Ω·cm 2 ), with reduced low-frequency diffusion impedance. When integrated into dye-sensitized solar cells (DSSCs), the SnS 2 @SnO 2 /NCSs-based device achieved a power conversion efficiency (PCE) of 7.32% (J sc = 17.23 mA·cm⁻ 2 , V oc = 737.46 mV, FF = 0.57), representing a 36% improvement over the pure heterojunction (5.38%) and approaching Pt-based devices (8.39%). This work provides a cost-effective strategy for developing high-performance non-Pt counter electrodes.
研究领域:
材料科学
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纳米技术
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电化学
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Lanlan Guo,Wei Zhao,Linlin Dong,Xin Shi,Guodong Wang,Rui Li,Jianliang Cao,Xueli Yang,Xiaolian Liu,Yan Wang
The construction of high-performance sensitive materials is a basis for excellent sensors. Among prior SnS 2 -based sensors, high sensing performance often accompanies high operating temperatures or expensive costs, which limits their practical use. Herein, we employed Sr doping and NaBH 4 treatment strategies to increase the S-vacancies content in the SnS 2 microflowers. Particularly, this composite sensitive material shows large specific surface area, low crystallinity and rich S-vacancies content, which enables this sensor excellent sensing properties toward NO 2 , with a response of 4.7 toward 5 ppm NO 2 at 100 °C. In addition, this sensor has a low detection limit for NO 2 as low as 0.2 ppm, which is a lower value compared to many SnS 2 -based NO 2 sensors as reported. XRD, SEM, TEM, EPR and BET characterization combined with density functional theory (DFT) calculations are adopted to illustrate the enhancement mechanism toward NO 2 of the composite sensitive materials fabricated in this work. This study provides new ideas and scientific basis for the construction of metal sulfide based NO 2 sensors, which has important theoretical significance and application value.
研究领域:
材料科学
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传感器技术
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计算化学
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2024
·
IF 8
Chongyang Wang,Bowen Zhang,Bo Zhang,Zhenyang Zhang,Mengjie Chen,Saisai Zhang,Hari Bala,Zhanying Zhang
The three-dimensional (3D) microstructures assembled by nanomaterials have attracted great attention due to their unique hierarchical structure and large surface area. In this study, the hierarchical nanosheets-assembled SnS 2 hollow microspheres with an average diameter of 6.1 μm were synthesized via a facile hydrothermal method . Then Pt nanoparticles were deposited on the surface of SnS 2 to form Pt/SnS 2 nanocomposites using the in-situ reduction method. Compared with pristine SnS 2 -based sensors, the Pt/SnS 2 sensors exhibited improved gas-sensing performances to NO 2 gas, including higher sensitivity, shorter response time , and better selectivity . The superior sensing performance can be ascribed to the Schottky junction created between Pt and SnS 2 , along with the catalytic effect of Pt. Moreover, the adsorption energy of SnS 2 and Pt-modified SnS 2 for NO 2 molecules was calculated using first principles based on density functional theory (DFT). The Pt modification can enhance the interaction of NO 2 with the SnS 2 surface, which is favorable for improving the gas-sensing properties. This work provides novel hierarchical SnS 2 microspheres based gas sensors for NO 2 detection.
研究领域:
材料科学
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纳米技术
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气体传感
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环境监测
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL BIOCHEMISTRY
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2023
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IF 2.9
Bo Yang,Huan Li,Cuijie Nong,Xiaokun Li,Suxiang Feng
In this work, a label-free electrochemical immunosensor using tin sulfide/nickel cobalt metal-organic frameworks (SnS 2 /NiCo MOFs) was established for the sensitive detection of cortisol. First, SnS 2 /NiCo MOFs were synthesized by doping SnS 2 with NiCo MOF nanocubes by a hydrothermal method . Then, gold nanoparticles (AuNPs) were grown in situ on SnS 2 /NiCo MOFs for electrochemical detection . The use of SnS 2 /NiCo MOFs promoted the electron transfer rate of AuNPs and enhanced the electrochemical sensing performance of AuNPs@SnS 2 /NiCo MOFs-modified electrodes. The large specific surface area of AuNPs@SnS 2 /NiCo MOFs provides more active sites for antibody loading. After the prepared immunosensor was incubated with the target analyte, cortisol, the electron transfer impedance increased and the amperometric response decreased, thus establishing a highly sensitive immunosensing method. The sensor had a linear range of 100 fg/mL to 100 ng/mL and a low detection limit of 29 fg/mL. The sensor showed good accuracy and practicability and could be used for the determination of cortisol in saliva.
研究领域:
电化学
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分析化学
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纳米技术
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生物传感器
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF SEPARATION SCIENCE
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2022
·Vol. 45
·期 23
·4224-4235
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IF 3.614
Ruozhu Xu,Yuan Tao,Wang Yao,Honglin Qin,Lizhen Qiao
In this study, three-dimensional flower-like tin disulfide materials were prepared, and a highly efficient dispersive solid-phase extraction method was developed using the obtained three-dimensional tin disulfide adsorbents for the preconcentration and determination of six endocrine-disrupting phenols in combination with high-performance liquid chromatography-ultraviolet detection. Several important experimental parameters influencing extraction efficiency were investigated, including the amount of adsorbent, ultrasound time, sample solution pH, sample volume, type of elution solvent, desorption time, and the number of desorption times. Under the optimized experimental conditions, the developed method showed good linearity with the determination coefficients of 0.993–0.998 in the linear range of 0.5–400 ng/ml and low limits of detection in the range of 0.15–1.0 ng/ml, as well as satisfactory intra-day and inter-day precisions with relative standard deviations of 0.1–9.8%. Finally, the proposed method was successfully applied for the enrichment and determination of trace endocrine-disrupting phenols in milk, tea beverage, and plastic bottled water samples, and acceptable recoveries were obtained from 70.1% to 119.1% under four different spiked concentration levels. The results showed that the three-dimensional tin disulfide materials had great potential for the extraction of endocrine-disrupting phenols contaminants in environmental and food samples.
研究领域:
分析化学
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环境科学
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食品科学
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产品关联
DOI
PubMed
高影响因子
Scientific Reports
·
2017
·Vol. 7
·期 1
·1-8
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IF 4.259
Zhang Yifeng,Liu Yixin,Li Rongxia,Saddam Khan Malik,Gao Picheng,Zhang Yong,Wei Qin
Herein, a novel label-free photoelectrochemical (PEC) immunosensor based on SnS 2 @mpg-C 3 N 4 nanocomposite is fabricated for the detection of prostate specific antigen (PSA) in human serum. Firstly, mesoporous graphite-like carbon nitride (mpg-C 3 N 4 ) with carboxyl groups is synthesized successfully which possesses high specific surface area and large pore volume. Then, SnS 2 as a typical n-type semiconductor with weak photoelectric conversion capability is successfully loaded on carboxylated mpg-C 3 N 4 to form a well-matched overlapping band-structure. The as-synthesized SnS 2 @mpg-C 3 N 4 nanocomposite performs outstanding photocurrent response under visible-light irradiation due to low recombination rate of photoexcited electron-hole pairs, which is transcend than pure SnS 2 or pure mpg-C 3 N 4 . It is worth noting that SnS 2 @mpg-C 3 N 4 nanocomposite is firstly employed as the photoactive material in PEC immunosensor area. The concentration of PSA can be analyzed by the decrease in photocurrent resulted from increased steric hindrance of the immunocomplex. Under the optimal conditions, the developed PEC immunosensor displays a liner photocurrent response in the range of 50 fg·mL −1 ~ 10 ng·mL −1 with a low detection limit of 21 fg·mL −1 . Furthermore, the fabricated immunosensor with satisfactory stability, reproducibility and selectivity provides a novel method for PSA determination in real sample analysis.
研究领域:
分析化学
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生物传感器
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纳米技术
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医学诊断
✓ 已验证
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2022
·
IF 6.911
Rongjie Li,Chenxi Wang,Yilin Wang,Jia Chen,Yaqi Yang,Chunyan Li,Yixi Xie,Pengcheng Zhao,Junjie Fei
As an emerging detection technology , photoelectrochemical sensors have been widely noticed for their unique technical features. Among others, the technology has been widely used in the fields of drug, biological antibody or antigen and contaminant detection. Secondly, acetaminophen, as a novel environmental pollutant , is difficult to be degraded in the ecosystem, which in turn causes serious impacts on the ecosystem. Therefore, in this work, we designed a photoelectrochemical sensor based on a composite film of flower-like SnS 2 , sea urchin-like AgBiS 2 and graphene oxide for the detection of acetaminophen in water samples. Among them, graphene oxide, as a two-dimensional carbon-based material, can immobilize other photoelectric materials well. In addition, the flower-like SnS 2 and sea urchin-like AgBiS 2 can enhance the intensity of the photoelectric response due to their synergistic effect. Notably, the combination of graphene oxide with SnS 2 and AgBiS 2 revealed an exponential increase in the photoresponse intensity, indicating that SnS 2 /AgBiS 2 /GO has a satisfactory photoresponse intensity. At the same time, the photoelectrochemical sensor exhibited sensitive detection performance (LOD = 4 nM) and a wide detection range (0.01–50 μM) for acetaminophen under optimal detection conditions. Moreover, it also showed excellent detection performance in the detection of actual water samples, indicating that it can be applied to the detection of acetaminophen in lakes.
研究领域:
环境科学
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分析化学
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材料科学
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产品关联
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2016
·
IF 7.476
Yixin Liu,Yifeng Zhang,Dan Wu,Dawei Fan,Xuehui Pang,Yong Zhang,Hongmin Ma,Xu Sun,Qin Wei
In this work, a label-free photoelectrochemical (PEC) immunosensor was developed for ultrasensitive detection of insulin based on MWCNTs@SnS 2 @CdS nanocomposites . As graphene-like 2D nanomaterial , SnS 2 nanosheets loaded on the conducting framework of multi-walled carbon nanotubes (MWCNTs) were adopted for the construction of immunosensor for the first time, providing a favorable substrate for in-situ growth of CdS nanocrystal that had suitable band structure matching well with SnS 2 . The well-matched band structure of these two metal sulfides effectively inhibited the recombination of photogenerated electron-hole pairs, thus improving the photo-to-current conversion efficiency. Besides, the introduction of MWCNTs facilitated electron transfer across the surface of electrodes, leading to a further increment of photocurrent . The as constructed label-free PEC immunosensor based on MWCNTs@SnS 2 @CdS nanocomposites exhibited excellent PEC performance for the detection of insulin. The concentrations of insulin could be directly detected based on the decrement of photocurrent that was brought by the increased steric hindrances due to the formation of antigen-antibody immunocomplexes. Under the optimal conditions, the PEC immunosensor had a sensitive response to insulin in a linear range of 0.1 pg mL −1 to 5 ng mL −1 with a detection limit of 0.03 pg mL −1 . Meanwhile, good stability and selectivity were achieved as well. The design and fabrication of this PEC immunosensor based on MWCNTs@SnS 2 @CdS nanocomposites not only provided an ideal platform for the detection of insulin, but also opened up a new avenue for the development of immunosensor for some other biomarkers analysis.
研究领域:
分析化学
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生物传感器
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纳米技术
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiangwei Zou,Bo Sun,Liang Wang,Hongcun Bai,Xiangchao Meng,Chunhu Li,Zizhen Li
Designing low-cost and efficient photocatalysts for the degradation of antibiotic contaminants in water is crucial for environmental remediation. In this study, we synthesized SnS 2 /Bi 2 MoO 6-x composites with a synergistic modulation of oxygen vacancies (OVs) and a Z-scheme charge transfer mechanism using a simple hydrothermal method. The synthesized composites, designated as SBMO-5, were used for the photocatalytic degradation of tetracycline (TC). Notably, SBMO-5 exhibited the highest reaction rate constant (0.01385 min −1 ), surpassing pristine SnS 2 (0.00129 min −1 ) and Bi 2 MoO 6 (0.00312 min −1 ) by 10.7 and 4.4 times, respectively. The enhanced photocatalytic degradation performance can be ascribed to the synergistic effect of the Z-scheme electron transfer mechanism and OVs. The unique Z-scheme electron transfer channel both accelerated the separation of photogenerated charge carriers and exploited the strongest oxidation and reduction capabilities within the constituent materials. Furthermore, the low-cost and readily available OVs modification enhanced absorption of visible light. Additionally, we investigated the influence of various experimental conditions on the degradation efficiency of SBMO-5, predicted the degradation pathways of TC , and evaluated the toxicity of the intermediates. Overall, this study provides insights into the application of efficient catalysts for pollutant degradation under a multi-electric field modulation strategy.
研究领域:
环境科学
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材料科学
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化学工程
·
光化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Xuemei Chen,Pengfei Zhu,Xiya Xin,Yu Chen,Xinglin Li
In this paper, a novel and highly efficient Bi 2 S 3 /Bi 2 WO 6 /SnS 2 double Z-scheme heterojunction photocatalyst was synthesized by a solvothermal method for the degradation of tetracycline hydrochloride (TC). After 60 min of visible light photocatalytic reaction, the degradation rate of TC at 20 mg/L by the Bi 2 S 3 /Bi 2 WO 6 /SnS 2 catalyst was as high as 92.33 %, the removal rate of total organic carbon (TOC) was 66.15 %, and the toxicity of the TC degradation solution decreased significantly. The pseudo-first-order reaction kinetics fitting constant (0.02731 min −1 ) for its photocatalytic degradation of TC was 5.71 and 1.87 times that of pure Bi 2 WO 6 (0.00478 min −1 ) and Bi 2 S 3 /Bi 2 WO 6 (0.01462 min −1 ), respectively. Meanwhile, the Bi 2 S 3 /Bi 2 WO 6 /SnS 2 photocatalyst also has excellent salt tolerance, versatility and cycling stability, showing good application potential. Multiple characterization results reveal that the enhancement of the activity of the Bi 2 S 3 /Bi 2 WO 6 /SnS 2 photocatalyst is mainly due to the fact that, on the one hand, the coupling of Bi 2 S 3 and SnS 2 to Bi 2 WO 6 greatly improves the visible light response ability of the catalyst. On the other hand, it significantly increases the surface area of the catalyst, not only enhancing its adsorption capacity but also exposing more surface active sites. Most importantly, the formation of the double Z-scheme heterojunction between Bi 2 S 3 , SnS 2 and Bi 2 WO 6 enhances the interfacial charge transfer efficiency, thereby promoting the effective separation of photogenerated electrons and holes. This paper provides a new strategy for purifying antibiotics in water by using Bi 2 WO 6 -based photocatalysts.
研究领域:
环境科学
·
材料科学
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化学工程
·
光催化
·
水处理
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Dan Xie,Huan-Huan Li,Wan-Yue Diao,Ru Jiang,Fang-Yu Tao,Hai-Zhu Sun,Xing-Long Wu,Jing-Ping Zhang
The development of next-generation lithium metal batteries (LMBs) has been chronically hindered by uncontrollable dendrite growth and infinite dimension change of metal Li. Even though the porous carbon skeletons have been deemed as effective hosting materials to prepare low-stress Li metal anode (LMA), the lithiophobic feature and poor spatial regulation for Li nucleation/growth of carbon skeletons render the achievement of high-stable LMA to be challenging. Herein, vertical-aligned SnS 2 nanosheet arrays (SnS 2 NSA) with intrinsic lithiophilic nature, endowed by in situ formed Li 13 Sn 5 via the alloying reaction of SnS 2 , are uniformly decorated on highly flexible carbon foam (SnS 2 NSA@CF) to overcome the encountered issues of ordinary carbon skeletons. The vertical-aligned SnS 2 nanosheet offers enriched lithiophilic surface area, thereby guiding the thin Li-nuclei layer uniformly deposited on nanosheet. Moreover, the continuous Li growth is proceeded on the initial Li-nuclei layer and spatially confined into the nanochannels of nanoarray to eliminate the volume change of LMA. The well-defined nanochannel effectively reduces the local current density and provides open spacing for quick charge transfer kinetics. Accordingly, the sustainable Li utilization with high Coulombic efficiency and highly stable Li plating/stripping with low polarization is achieved, shedding light on the feasibility of SnS 2 NSA for dendrite-free LMA.
研究领域:
材料科学
·
能源存储
·
电池技术
·
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）