Nano Select
·
2021
·Vol. 2
·期 3
·642-653
·
IF 0
Xiaoyan Wang,Tianle Zheng,Ya-Jun Cheng,Shanshan Yin,Yonggao Xia,Qing Ji,Zhuijun Xu,Suzhe Liang,Liujia Ma,Xiuxia Zuo,Jian-Qiang Meng,Jin Zhu,Peter Müller-Buschbaum
Ultrafine SnO 2 /Sn nanoparticles encapsulated into the adjustable mesoporous carbon matrix has been successfully fabricated by a facile route. The mesoporous carbon effectively improve the conductivity of the SnO 2 /Sn, prevent the aggregation, accommodate the strain of volume change and provide high interface area with the electrolyte, thus resulting in excellent cycling performance. A reversible capacity of 1105 mAh g –1 still retained after 290 cycles at 200 mA g –1 , and the capacity still can keep at 107 mAh g –1 at high current density of 10 A g –1 . The porous structures by the in situ SiO x template provide an appropriate specific surface area, which contributes to a relatively high capacitive contribution.
研究领域:
材料科学
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能源技术
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纳米技术
✓ 已验证
DOI
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Wenming Zhang,Pin Cao,Ling Li,Kun Yang,Kun Wang,Shuo Liu,Ze Yu
The combination of high-capacity and long cycle stability has always been regarded as a prerequisite for efficient anode materials in sodium-ion batteries (SIBs). In this work, we design and synthesize carbon-encapsulated 1D SnO 2 /NiO heterojunction hollow nanotubes (SnO 2 /NiO@C) and successfully apply them as an anode material for SIBs . SnO 2 /NiO@C is synthesized by a facile electrospinning technique and subsequent chemical bath deposition, followed by polydopamine (PDA) carbonization. The 1D hollow structure can effectively reduce the diffusion length of sodium ions and the large volume variation of SnO 2 during cycling. In addition, carbonized PDA is uniformly dispersed on the SnO 2 /NiO hollow nanotubes, not only contributing to structural stability, but also acting as a conductive matrix to enhance the battery performance. SIBs based on SnO 2 /NiO@C anodes exhibit a highly reversible capacity of 320 mAh g −1 after 200 cycles at 100 mA g −1 and a considerably stable long cycling performance. The present work highlights the potential of SnO 2 /NiO@C based anode materials for the development of high-performance SIBs with combined high capacity and long cycle stability.
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2019
·
IF 3.42
Minjia Wang,Yang Xu,Yuan Liu,Wentao Wu,Shuaihua Xu
ATO hollow microspheres were synthesized with carbon ball template by the hydrothermal method . In order to study the likely formation mechanism of ATO hollow microspheres, the morphology, crystalline structure and microstructure were examined with XRD, SEM, EDS and HRTEM. The optical and thermal characteristics of the microspheres including absorption and reflectance, and thermal conductivity , infrared emissivity (8˜14 μm), and specific heat capacity were also measured. Silicone acrylic emulsion coating containing different dosages of ATO microspheres were then prepared, and their Vis-NIR transmittance and photo-thermal shielding performance were studied. Compared to solid microspheres, ATO hollow microspheres showed higher absorption, lower reflectance, lower thermal conductivity , higher specific heat capacity and higher infrared emissivity. Results also showed that ATO hollow microspheres introduction reduced the Vis-NIR transmittance of the silicone acrylic emulsion coating, and also enhanced the photo-thermal shielding performance of coating by higher absorption, slower thermal conduction and radiative cooling. This study indicates that coating containing ATO hollow microspheres is a promising material that can be applied for energy conservation.
研究领域:
材料科学
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纳米技术
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热功能涂层
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节能材料
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光学材料
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 8
·期 14
·2100368
·
IF 6.147
Yuanyuan Li,Jianwei Li,Jun Cheng,Xiaoyan Xu,Lina Chen,Lijie Ci
Sulfide solid electrolytes are excessively investigated on account of the high ionic conductivity. However, their applications are hindered by the air-sensitivity and poor interfacial compatibility against lithium metal. Herein, Sn and O co-doping strategy is designed to enhance the stability of the sulfide-based solid state electrolyte towards air moisture and lithium metal. The ionic conductivity of Li 7 Sn 0.1 P 2.8 S 10.5 O 0.2 is twice of that of the pristine Li 7 P 3 S 11 due to the synergistic effect of Sn and O prepared by the solvent-assisted ball milling method. Impressively, with partial substitution of S by O and P by Sn in Li 7 P 3 S 11 , the newly-designed electrolyte largely suppresses the hydrolysis in the air. Furthermore, galvanostatic cycling of symmetric cells demonstrate that Li 7 Sn 0.1 P 2.8 S 10.5 O 0.2 enables improved interfacial compatibility towards lithium metal. Hence, the all-solid-state batteries with Li 7 Sn 0.5 x P 3− x S 11−2.5 x O x significantly elevate the cyclability and the reversible capacity. The co-doping strategy provides a promising approach to achieve excellent chemical and electrochemical stability for the large-scale application of sulfide-based solid state electrolytes.
研究领域:
材料科学
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电化学
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储能
·
固体离子学
✓ 已验证
DOI
高影响因子
Journal of Nano Research
·
2025
·
IF 1
Xiao Ling Xie,Wei Li
Through a simple electrodeposition technique, SnO2/MnO2 nanocomposite films were directly deposited onto ultrathin stainless-steel (SS) foils for use in electrochemical supercapacitors. The materials were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). Electrochemical experiment revealed that the SnO2/MnO2 electrodes exhibited a high gravimetric capacitance of 876 F/g at a current density of 1 A/g. Furthermore, an asymmetric supercapacitor was fabricated using the SnO2/MnO2 nanocomposite as the positive electrode and activated carbon as the negative electrode. This asymmetric device demonstrated a capacitance of 72.2 F/g at 1 A/g and retained approximately 87.5% of its initial capacitance after 28,000 cycles, highlighting its excellent cycling stability and practical application potential. The combination of high capacitance and robust stability makes this SnO2/MnO2 nanocomposite a promising candidate for high-performance supercapacitor electrodes.
研究领域:
材料科学
·
电化学
·
储能
✓ 已验证
DOI
高影响因子
ACS Sensors
·
2026
·
IF 10.9
Xinxin He,Ping Guo,Yinhua Hu,Xuyang An,Shuai Liang,Tiezhu Liu,Tong Zhang,Guohua Cai,Yanjie Chu,Jia Zhang
Exhaled human breath contains disease-related biomarkers, enabling non-invasive medical diagnostics. Small intestinal bacterial overgrowth (SIBO) is traditionally diagnosed through hydrogen measurement, a method that offers limited specificity and sensitivity. Herein, we introduce a simplified Pt/Pd-SnO2 electronic composed of using only two sensing materials to achieve multi-gas detection. By simultaneously monitoring H2, CO, ethanol, and acetone, the system provides a more informative diagnostic profile than conventional single-marker tests. Furthermore, the electronic nose employs dual operating temperatures (135 and 190 °C) to enhance gas discrimination. Machine learning-assisted signal processing further optimizes the system’s ability to differentiate gases, enabling more accurate detection in clinical settings. It achieves a 93% classification accuracy and a mean squared error of 0.78 for gas concentration estimation. Importantly, the system was validated using real clinical breath samples collected after lactulose ingestion, where SIBO patients exhibited markedly elevated responses (7.62−18.77) compared to healthy individuals (2.45−4.91). This clinically validated, multi-gas platform offers improved accuracy and practical potential for SIBO diagnosis.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Furong Tao,Yuning Zhang,Yunqi Miao,Ruirui Qi,Zizheng Lv,Haimei Xu,Zhichao Miao,Xingxiang Ji
Electrocatalytic CO 2 reduction (ECR) to high-value formic acid is an important approach for realizing carbon resource recycling and renewable energy storage. A key challenge in this process is the development of highly efficient and stable catalysts. In this work, three types of mesoporous catalysts, In 2 O 3 -ZrO 2 , SnO 2 -ZrO 2 , and Bi 2 O 3 -ZrO 2 , were prepared through a one-step method. The influence of type and existing state of active components on catalytic performance was researched in depth. These results indicate that the introduced active components exhibit a strong interaction with ZrO 2 support and exist as a highly dispersed state in the support. Among the prepared catalysts, the In 2 O 3 -ZrO 2 demonstrates superior activity and stability, achieving a formate Faraday efficiency of 90 % and a current density of 110 mA cm −2 at −1.17 V vs. RHE, while maintaining stable performance over an 80 h long-term ECR test. In addition, the mesoporous material with high specific surface area provides a greater number of active sites, thus contributing to the enhanced catalytic performance. This study provides a new catalyst synthesis strategy for ECR to formate and offers guidance for preparing high-efficiency catalysts.
研究领域:
电催化
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材料科学
·
二氧化碳利用
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能源存储
·
纳米材料
✓ 已验证
产品关联
DOI
高影响因子
NANO
·
2020
·
IF 1.566
Zhuang Liu,Jianlin Chen,Caiyou Huang,Too Gideon Kiprono,Wusong Zhao,Wei Qiu,Zhuoyin Peng,Jian Chen
In this paper, three kinds of SnO 2 precursors were comparatively investigated for low temperature solution-processed SnO 2 films as electron transport layers (ETL) of CsPbBr 3 perovskite solar cells (PSCs). It was found that the precursor state and solvent type played an important role on the crystallinity and film-forming performance of SnO 2 . All-inorganic hole-transport-layer-free planar CsPbBr 3 PSCs with an architecture of FTO/SnO 2 /CsPbBr 3 /carbon were fabricated. The best-performing device with SnO 2 as ETL by reflux condensation sol spin-coating technique delivered a champion power conversion efficiency (PCE) as high as 6.27%, with a short-circuit current density of 7.36 mA cm − 2 , an open-circuit voltage of 1.29 V, and a fill factor of 65.9%. It was comparable to the highest PCE record 6.7% of the device with the same structure based on TiO 2 -ETL so far. Moreover, the CsPbBr 3 devices without encapsulation exhibited good stability after being stored under ambient conditions with a relative humidity of ∼ 4 0 % at room temperature over 1000 h and 60 ∘ C for 720 h, respectively. The results promise the commercial potential of CsPbBr 3 PSCs using reflux condensation low-temperature solution-processed SnO 2 as ETLs for flexible polymer photovoltaic applications.
研究领域:
材料科学
·
能源科学
·
光伏技术
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 8
·3670-3686
·
IF 4.5
Zhou F. Y.,Hong B.,Xu J. C.,Han Y. B.,Jin H. X.,Jin D. F.,Zeng Y. X.,Peng X. L.,Ge H. L.,Wang X. Q.
Mesoporous SnO 2 , Sn 0.861 Al 0.186 O 2 , Sn 0.921 In 0.106 O 2 and Sn 0.959 La 0.055 O 2 nanospheres were successfully synthesized by a one-step solvothermal method. The compositions, crystal structures, microstructures, morphology and gas-sensing performance of the as-synthesized Al-, In- and La-doped SnO 2 nanospheres were characterized by XRD, EDS, TEM, SEM, FT-IR, UV–vis and BET. All samples present the similar mesoporous-structural nanospheres due to the same chemical synthesis conditions. The gas-sensing results indicate that the cations-doping greatly affects the formaldehyde gas-sensing performance, and the response increases with the increasing radius of Al, In and La. Owing to the higher specific surface area and larger La 3+ radius, Sn 0.959 La 0.055 O 2 sensor presents the best gas-sensing performance with the response value of 149.59 to formaldehyde gas at 200 °C. It is concluded that metal-cation doping not only causes lattice distortion to increase oxygen vacancies, but also could refine the crystalline grain to improve the specific surface area of metal-cations doped SnO 2 nanospheres.
研究领域:
材料科学
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无机化学
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纳米科技
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传感器技术
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表面科学
✓ 已验证
DOI
高影响因子
Sensors & Diagnostics
·
2023
·Vol. 2
·期 2
·427-437
·
IF 0
Xiangfei Zheng,Dongmiao Qin,Shenglan Hu,Weiming Mo,Biyang Deng
Tin oxide nanoflowers (SnO2NFs) are used as both an electrochemiluminescent (ECL) signal generator and a carrier of nanomaterials due to the advantages of excellent electrical conductivity, large specific surface area, and good optical properties. AuNPs/PEI-SnO2NFs provide a larger binding site for the immobilization of secondary antibodies (CA12-5-Ab2). The synthesized Ag@ZnONS composite with a large specific surface area and good biocompatibility was applied to immobilize more primary antibodies (CA12-5-Ab1), which further enhanced the ECL signal and obviously improved the sensitivity and selectivity of the immunosensor. A novel signal amplification ECL immunosensor for detecting carbohydrate antigen 12-5 (CA12-5) was fabricated with AuNPs/PEI-SnO2NFs as a signal probe and Ag@ZnONSs as the sensing matrix. The ECL intensity was linearly related to the logarithm of the CA12-5 concentration in the range from 1 × 10−5 to 50 ng mL−1 under optimized conditions. The limit of detection was 2.6 fg mL−1 (S/N = 3). The assay had good operational stability, specificity, and high sensitivity. The study was applied to analyze the CA12-5 level in human serum with satisfactory results, which could be applied in clinical immunoassays.
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
·
临床诊断
✓ 已验证
DOI
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Salman Riaz,Liu Min,Zhong Zhenwu,Qi Ying,Wei Peng,Jian Cheng,Min Jae Ko,Mi Hongyu,Muhammad Salik Qureshi,Shayan Umar,Yahong Xie
Electron transport layer has always played a crucial role in the performance of the perovskite solar cells (PSCs). Particularly, SnO 2 -based PSC has sparked considerable interest due to its superior properties. Even with such remarkable properties, certain challenges persist such as agglomeration of SnO 2 particles which can lead to interfacial defects and poor morphology. To solve this problem, Agmatine Sulfate (AGTS) has been introduced as an interfacial modification agent which with the help of its active functional group including amide (-NH 2 ) and hydroxyl (OH) has allowed to facilitate the interaction at the interface between SnO 2 and perovskite. The interaction facilitates the growth of perovskite crystals while tuning the energy levels which has boosted the charge transfer capability of the layer. All these improvements in the properties have led to enhanced power conversion efficiency (PCE) from 11.17 % to 15.20 % for the encapsulated device. Furthermore, the modification also improved the long-term stability of the device as the AGTS-modified devices retained 87 % of their performance at 15–25 °C with humidity levels between 10 and 20 % for over a period of 31 days. Finally, the devices prepared with the AGTS also showed repeatability in their performance while boosting the overall performance of carbon-based PSCs (C–PSCs) and indicating a novel approach to not only increase but also accelerate the commercialization of C-PSC.
研究领域:
材料科学
·
能源技术
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Songhai Zheng,Liwei Su,Lihua Zheng,Hao Wu,Lianbang Wang,Hong Zhong,Manman Ren,Ming Li
SnO 2 is considered as an ideal substitute for graphite anode in lithium ion batteries since it has a four-fold theoretical capacity and low discharge potential. However, the poor transformation from Sn/Li 2 O to SnO 2 due to sluggish kinetic results in a low initial Coulombic efficiency (ICE) of only 52.4%. At the same time, the intrinsically low ionic/electronic conductivity and high volume swings during charge/discharge processes seriously limit its long-term stability and high-rate performance. Different from traditional strategies, nanotechnology and composite, this work prepares sub-10 nm SnO 2 /Fe 3 O 4 /graphene nanosheets with controllable Fe/Sn atomic ratios through a hydrothermal method to study the nanocatalytic effect of Fe on improving the ICE. The component, structure and lithium storage performance of the samples, with varied Sn/Fe ratios, are systematically investigated. The sample with Sn/Fe of 1.31 shows a high ICE of 70.9% (considering the negative effect of huge solid/electrolyte interface films, this value is quite high) and an outstanding reversible capacity of 1048 mA h g −1 after 800 cycles at the current density of 200 mA g −1 . The valence states of Sn and Fe before and after cycling are analyzed by X-ray photoelectron spectroscopy. Our findings offer new evidence for electrochemical catalytic conversion mechanism for lithium storage and highlight opportunities to boost the energy storage capability of the fourth main group compounds.
研究领域:
材料科学
·
纳米技术
·
电化学
·
储能
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）