ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Zhiyong Bao,Zhijun Peng,Fujun Chang,Jiewu Cui,Juan Li,Xin Yao,Jun Lv,Guangqing Xu,Jiyan Dai,Yucheng Wu
The practical implementation of lithium–sulfur (Li–S) batteries is still impeded by two fundamental challenges: the low conductivity of lithium sulfide species (Li2S2/Li2S) and the shuttling of soluble lithium polysulfides (LiPSs). To tackle these issues, we propose an efficient polysulfide regulation strategy via a functional separator coated with Bi2Se3@NiSe2 heterostructures anchored on nitrogen-doped carbon nanotubes (N-CNTs). The rationally constructed Bi2Se3@NiSe2 interfaces not only offer strong chemisorption toward LiPSs but also act as highly active electrocatalysts to facilitate their conversion kinetics, particularly the nucleation and decomposition of Li2S. Coupled with the three-dimensional conductive network of N-CNTs, which ensures rapid electron/ion transport, the designed separator significantly suppresses the shuttle effect and enhances redox efficiency. As a result, Li–S batteries equipped with the Bi2Se3@NiSe2/N-CNT-modified separator achieve a remarkable initial discharge capacity of 1418.24 mAh g–1 at 0.1 C and outstanding long-term cyclability with a minimal decay rate of 0.083% per cycle over 500 cycles at 1 C. In situ X-ray diffraction further verifies the reversible phase evolution between α-S8 and Li2S during cycling. This work highlights the potential of bimetallic selenide heterostructures as multifunctional catalytic interlayers and provides a feasible pathway toward advanced separators for durable Li–S batteries.
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高影响因子
ACS Sensors
·
2025
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IF 9.1
Xiaopeng She,Mengqing Wang,Xinke Jiang,Yi Chen,Cheng Zou,Hongping Liang,Yong Zhou
Ethylene (C2H4) serves as a gaseous biomarker of fruit ripeness during the stages of growth and storage, thus necessitating swift and sensitive detection to assess the evolution of maturity and flavor for target fruits. However, C2H4 vapor is difficult to discern due to its nonpolar inertness and robust molecular structure at room temperature (RT). To this end, a new chemiresistive sensor based on bismuth selenide (Bi2Se3) decorated with zinc oxide (ZnO) nanorods was prepared in this work. Contrary to the high sensor resistance and lack of signal toward C2H4 under dark environments at RT, UV illumination endowed the composite film sensor with low resistance and a noticeable signal. Furthermore, the recovery speed was intriguingly reduced from 10 min to less than 2 min when water vapor was simultaneously introduced. In particular, the optimal 1.0-Bi2Se3/ZnO sensor delivered a response of 38.7% and a response/recovery time of 27/87 s toward 5 ppm of C2H4. Also, the long-term stability was remarkably improved with respect to the pure ZnO counterpart. In addition, excellent linearity across the concentration range from 1 to 20 ppm, good repeatability, and high selectivity over C2H4 were displayed. The effective on-site freshness detection of bananas via the as-prepared 1.0-Bi2Se3/ZnO sensor, by combining electrical signal and visual information demonstrated a huge application potential for fruit ripening monitoring under the synergistic effect of UV illumination and humidity at RT, well catering to the demanding requirements of low power consumption and high miniaturization in the field of future smart sensors.
研究领域:
传感器学
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食品科学
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纳米材料学
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生物医学工程
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环境监测
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智能农业
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PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
·
2017
·Vol. 35
·期 3
·1700337
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IF 4.474
Zhuo Li,Zhenglin Li,Lei Sun,Baosheng Du,Yuanlin Wang,Gongyuan Zhao,Dengfeng Yu,Sisi Yang,Ye Sun,Miao Yu
Thermo-chemotherapy combining photothermal therapy (PTT) with chemotherapy has become a potent approach for antitumor treatment. In this study, a multifunctional drug-delivery nanoplatform based on polyethylene glycol (PEG)-modified mesoporous silica-coated bismuth selenide nanoparticles (referred to as Bi 2 Se 3 @mSiO 2 -PEG NPs) is developed for synergistic PTT and chemotherapy with infrared thermal (IRT) imaging of cancer cells. The product shows no/low cytotoxicity, strong near-infrared (NIR) optical absorption, high photothermal conversion capacity, and stability. Utilizing the prominent photothermal effect, high-contrast IRT imaging and efficient photothermal killing effect on cancer cells are achieved upon NIR laser irradiation. Moreover, the successful mesoporous silica coating of the Bi 2 Se 3 @mSiO 2 -PEG NPs cannot only largely improve the stability but also endow the NPs high drug loading capacity. As a proof-of-concept model, doxorubicin (DOX) is successfully loaded into the NPs with rather high loading capacity (≈50.0%) via the nanoprecipitation method. It is found that the DOX-loaded NPs exhibit a bimodal on-demand pH- and NIR-responsive drug release property, and can realize effective intracellular drug delivery for chemotherapy. The synergistic thermo-chemotherapy results in a significantly higher antitumor efficacy than either PTT or chemotherapy alone. The work reveals the great potential of such core–shell NPs as a multifunctional drug-delivery nanosystem for thermo-chemotherapy.
研究领域:
肿瘤学
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纳米医学
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生物材料
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高影响因子
Nano Today
·
2022
·
IF 18.962
Xiuping Sun,Bo Zhang,Ming Chen,Lu Wang,Debao Wang,Ruxia Man,Sikandar Iqbal,Fang Tian,Yitai Qian,Liqiang Xu
Metal Selenides with layer structure has obvious advantages to store guest alkaline metal ions , promote cycling stability and accelerate diffusion kinetics when applied as electrode for batteries . Among them, layer structured Bi 2 Se 3 with large interlayer spacing is expect to have potential applications in rechargeable batteries . In this study, Bi 2 Se 3 @NC composite with lollipop-like structure was synthesized by conveniently hydrothermal combined subsequent selenization process and then applied as high-performance anodes for both PIBs and LIBs . The synergistic effects between Bi 2 Se 3 and N-doped carbon shell endow it excellent performances anode for PIBs (~ 201.2 mA h g −1 after 1200 cycles at 100 mA g −1 , and 130.5 mA h g −1 after 2000 cycles at high current density of 1000 mA g −1 ). Bi 2 Se 3 @NC also exhibited outstanding performance as anode for LIBs (~ 1005.8 mA h g −1 after 300 cycles at 100 mA g −1 ). The reaction kinetics analyses results revealed that pseudocapacitance contribution play important role for the excellent electrochemical performances. It is worth to note that the Bi 2 Se 3 @NC//PTCDA-450 potassium-ion full cells were successfully assembled, and 122.3 mA h g −1 was remained after 200 cycles at 100 mA g −1 (the coulombic efficiency can keep at ~ 100%). In addition, ex-situ X-ray diffraction and HRTEM were adopted to explore the phase evolution of Bi 2 Se 3 @NC during charge-discharge processes and density functional theory (DFT)-based first-principle calculations reveal that Bi 2 Se 3 has a lower diffusion barrier and adsorption energy than that of Bi 2 O 3 . These results prove the merits of Bi 2 Se 3 @NC and its application potential as suitable anode material for half/full PIBs and LIBs .
研究领域:
材料科学
·
电化学
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高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Youqiang Huang,Gongxun Bai,Yingjie Zhao,Yuan Liu,Shiqing Xu,Jianhua Hao
Two-dimensional inorganic semiconductor materials have aroused tremendous research interest and found their potential in resolving the present urgent global issues, such as cancer therapy and fresh water shortage. Particularly, the near-infrared (NIR) photothermal conversion efficiency is a significant parameter in photothermal therapy. However, lack of an effective improvement strategy and their relatively low NIR phothermal conversion efficiency would restrict their wide and further application. Here, this work reports that enhanced NIR photothermal conversion is achieved in topological Bi2Se3 nanosheets by introducing a lanthanide dopant. Specifically, lanthanide Pr-doped Bi2Se3 nanosheets possess a photothermal conversion efficiency of 49.5%, which is higher than those of undoped Bi2Se3 nanosheets (31.0%) and numerous reported photothermal materials. The electronic structure of Pr-doped Bi2Se3 nanosheets was also analyzed by first-principles simulation. Furthermore, an interfacial evaporation system based on the developed nanosheets has been established, demonstrating a superior solar–thermal conversion efficiency of 91.5% and a water evaporation rate of 1.669 kg m–2 h–1 under 1 sun irradiation. The present work would provide new insights for the increase in the efficiency of photothermal materials.
研究领域:
材料科学
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纳米技术
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能量转换
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光热治疗
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海水淡化
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高影响因子
危险品化学品经营许可证（带存储）