JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Linyue Qu,Dengbang Jiang,Qiuyue Shi,Yifan Zhang,Wudao Yang,Bo Shen,Yun Chen,Fangkun Li,Yang Bai,Chunwei Zhang,Yin Lu,Han Wu,Wei Bai,Junming Guo,Mingwu Xiang
The advanced lithium–sulfur (Li S) batteries are hindered by lithium polysulfides (LiPSs) shuttling. Herein, a flexible self-supporting hybrid current collector dual coupled with reduced graphene oxide (rGO) nanosheets and tin disulfide (SnS 2 ) nanoparticles is rationally constructed via facile hydrothermal and pyrolysis. Aside from generating a three-dimensional (3D) conductive framework, this current collector provides plentiful active sites conducive to sulfur loading. The intimate coupling of polar SnS 2 , high conductive rGO and robust carbon foam skeleton builds a good interfacial engineering to enhance electron transport and charge transfer across the solid-liquid interface, thereby promoting catalytic transformation of LiPSs adsorbed on the carbon hybrid. Additionally, the SnS 2 nanoparticles and nitrogen heteroatoms in situ doped endow LiPSs with a strong synergetic confinement. Consequently, the optimized cathode exhibits a high initial capacity (1147.7 mAh g −1 at 0.2C), excellent rate performance (535.7 mAh g −1 at 3.0C) and an exceptionally low 0.04% capacity decay per cycle over 500 cycles at 2.0C. Notably, a 6.3 mAh cm −2 areal capacity is attained under harsh high-loading (10.0 mg cm −2 ) and lean-electrolyte (4.4 μL mg −1 ) conditions. The freestanding architecture also enables flexible pouch-cell operation under repeated bending. These results demonstrate that coupling conductive transport pathways with polar adsorption and catalytic interfaces is an effective strategy for regulating polysulfide chemistry in high-loading Li S batteries. A flexible self-supporting NCF@rGO/SnS 2 host is constructed via hydrothermal and pyrolysis processes. The interface-engineered structure combines a 3D conductive network for rapid electron/ion transport with polar SnS 2 for synergistic chemisorption and electrocatalytic conversion of lithium polysulfides, enabling high capacity and stable cycling. Download: Download high-res image (410KB) Download: Download full-size image
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DOI
高影响因子
MICROCHIMICA ACTA
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2015
·Vol. 182
·期 9
·1827-1834
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IF 3.741
Li Yang,Chen Ruchun,Li Yiyang,Sharafudeen Kaniyarakkal,Liu Shijian,Wu Dakun,Wu Yiling,Qin Xixi,Qiu Jianrong
Folic acid-conjugated luminescent nanomaterials have long been widely used in targeted bioimaging, often simultaneously acting as vehicles for drug delivery. They often require, however, intense light sources for photoexcitation, and this often results in photobleaching, strong luminescence background, and strong light scattering. This article describes the preparation of nanoparticles (NPs) of the type Zn 1.1 Ga 1.8 Sn 0.1 O 4 doped with Cr(III) ions and surface-modified with folic acid. The functionalization of the NPs was monitored via measurement of zeta potentials, FTIR spectra and thermogravimetry. Cell viability and biocompatibility were tested using the MTT kit. The NPs have a size of 220 nm and were characterized by dynamic X-ray diffraction, light scattering, field emission scanning electron microscopy and high-resolution transmission electron microscopy. After annealing the NPs for 10 min at 300 °C and irradiating them with 254 nm light for 10 min, they display deep red emission that persists for up to 10 h. The NPs are easily dispersed, small-sized, and crystalline. In our perception, the new material with its long decay time offers quite novel features in terms of targeted optical imaging in providing high resolution, weak disturbance by background luminescence, and the absence of light scattering. They were successfully applied to image MCF-7 and A549 cells.
Folic acid-conjugated nanoparticles of the type Zn 1.1 Ga 1.8 Sn 0.1 O 4 :Cr 3+ are presented that are easily dispersible, small-sized (100 nm), and well crystallized. They display a phosphorescence in the NIR that persists for >10 h after excitation and were used to image MCF-7 and A549 cells.
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DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2021
·
IF 4.098
Meng Zhang,Yanan Wang,Yan Ma,Xu Wang,Bing Zhao,Weidong Ruan
Surface-enhanced Raman scattering (SERS) has been applied in many fields, but still has the limitation of widespread applications on semiconductor substrates. In this work, a series of antimony-doped tin oxide (ATO) nanoparticles (NPs) have been synthesized by a hydrothermal method and were used as SERS substrates for the first time. Interestingly, a charge transfer (CT) effect was revealed between the probing molecules of 4-mercaptobenzoic acid (4-MBA) and the substrates of ATO NPs, which accounts for the SERS enhancement and shows dependence to the Sb ions doping ratios in ATO NPs. By considering the energy level diagram of the ATO–MBA complexes and the doping theory of semiconductors, this phenomenon is believed to connect to the variance of the optical band gap energy ( E g ), which is accompanied with the changes of free charge carrier densities in conduction bands (CBs) of ATO NPs due to different doping contents. The study of the E g - or free-charge-carrier-density-dependent property of the semiconductor-based SERS provides a new point of view for the development of new semiconductor SERS substrates and also contributes to the SERS CT mechanism.
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Feng Guo,Pingxiu Zeng,Jinhua Liu,Hongmei Hu,Wenbin Zhu,Yuanchao Wang,Heyong Cheng
Tin and lead are a global concern considering their species-dependent toxicity, bioavailability and transformation. Simultaneous speciation analysis of tin and lead is challenging for a large food capacity containing unstable species. Herein, we developed two sensitive methods for rapid quantification of tin and lead species in Antarctic seafood by high-performance liquid chromatography and inductively coupled plasma mass spectrometry based on strong cation-exchange and Amphion columns. Inorganic tin and lead, four organotin and two organolead compounds can be analysed in 16 min on a 10-cm Amphion II column (mobile phase: 4 mM sodium dodecyl benzene sulfonate at pH 2.0) with 0.02–0.24 μg L –1 detection limits. The method was applied to Antarctic krill and fish, demonstrating the presence of any tin and lead species down to μg kg −1 level. Overall, the proposed methods are sensitive, efficient and environment-friendly for routine speciation analysis of tin and lead in food samples.
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）