RARE METALS
·
2024
·
IF 9.6
Liang Xin,Zhao Dong-Qing,Huang Qian-Qian,Liang Sheng,Wang Li-Li,Hu Lei,Liu Ling-Li,Hu Kun-Hong,Deng Chong-Hai,Cheng Sheng,Zhu Er-Tao,Deng Hua-Xia
Lithium–sulfur battery is one of the most promising battery systems for industrialization due to its high theoretical specific capacity and high energy density. Nonetheless, the “shuttle effect” has restrained the advancement of lithium–sulfur batteries. In this work, a gradient-structured nanofiber membrane with pure gelatin on one side and Super P-MoO 2 /MoS 2 -gelatin on the other side was created using a multi-step electrostatic spinning technique, which was applied for multi-functional separator for lithium–sulfur batteries. The pure gelatin layer facing the anode side primarily homogenizes the lithium flux, whereas the Super P-MoO 2 /MoS 2 -gelatin layer facing the cathode side primarily adsorbs polysulfides by physical and chemical adsorption and enhancing polysulfide conversion efficiency. The findings demonstrate that even after 150 cycles at 0.2C, the lithium–sulfur battery can still sustain a discharge-specific capacity of 572.3 mAh·g −1 . When used with Li||Li symmetric batteries, it has a cycle life of more than 1200 h. The commercialization of lithium–sulfur batteries is given a fresh idea by this straightforward preparation technique. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2024
·
IF 11.4
Qingyang Xue,Peng Xiao,Jincui Gu,Wenqin Wang,Luke Yan,Tao Chen
Solar-driven water evaporation, as an environmentally benign pathway, provides an opportunity for alleviating global clean water scarcity. However, the rapidly generated interfacial steam and localized heating could cause increased salt concentration and accumulation, deteriorating the evaporation performance and long-term stability. Herein, a novel superhydrophobic sand solar (FPPSD) evaporator with a core-shell structure was proposed through interface functionalization for continuous photothermal desalination. The collective behavior essence of the sand aggregate gave itself micron-scale self-organized pores and configurable shapes, generating desirable capillary force and supplying effective water-pumping channels. More importantly, combining the dopamine, polypyrrole (PPy), and 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTS) through π-π conjugation and multiple hydrogen bonding effects gave the FPPSD evaporator with stable superhydrophobic property and highly efficient photothermal conversion capability. Therefore, the FPPSD evaporator showed a continuous and stable photothermal performance even after 96 h continuous evaporation under 3-sun irradiation for 10 wt% saline solution, among the best values in the reported works of literature, demonstrating its excellent salt-resistance stability. Furthermore, this novel FPPSD evaporator displayed outstanding environmental stability that kept its initial water transport capacity even after being treated under harsh conditions for 30 days. With excellent salt-resistance ability and stable environmental stability, the FPPSD evaporator will provide an attractive platform for sustainable solar-driven water management.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2024
·
IF 9.7
Jiaying Zhou,Xiaoke Li,Wei Xie,Qian Chen,Yaogang Jiang,Xiaohu Wu,Liu Yang
Solar-powered water treatment technology is gaining increasing importance as one solution to ameliorate water resource deficits. This study presents a novel approach of synergistically combining interface solar vaporization technology with low-cost sorption techniques to better enable resource recovery in the water treatment process. After preparation of a halloysite nanotube-based hydrogel, it was subjected to 1 sun illumination . The prepared hydrogel demonstrated an evaporation rate and evaporation efficiency of 2.97 kg/m 2 ·h and 93.2%, respectively, with ideal salt and stain resistance. Under the synergistic effect of halloysite nanotubes (HNTs), the hydrogel efficiently sorbed Li + at a rate and maximum capacity of 84.15% and 168.3 mg/g, respectively during the solar vaporization process. This study also discussed the main interactions between Li + and hydrogel sorbents . The results of this study providing a novel and promising approach for concurrent water treatment and Li + extraction.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2024
·
IF 4.8
Zeyu Zhang,Ziheng Li,Mingxue Zhang,Hongshun Hao,Shuang Yan
Carbon nanofibers have been widely studied as one of the promising materials for fabricating flexible electronic strain sensors. Surface modification of carbon nanofibers by conducting polymers is a simple yet effective approach to constructing strain sensors with good conductivity and sensitivity. In this work, composite nanofiber membranes composed of carbon nanofiber and conducting polymer are developed via in situ polymerization of pyrrole, aniline, and thiophene respectively on the surface of the carbon nanofiber which serves as a substrate. Different composite membranes, CNF@PANI, CNF/Ppy, and CNF@PTh, are successfully manufactured. The conducting polymer-carbon nanofiber composite membranes exhibit improved conductivity as well as response sensitivity compared to pristine carbon nanofiber membranes. Among different composite membranes being studied, CNF/Ppy demonstrates the highest strain-sensing performance. It shows good sensitivity, reproducibility, and stability in detecting both subtle (strain = 0.1%) and large (strain = 25%) deformation. The excellent strain-sensing performance of CNF/Ppy endows the composite membrane with great potential for applications in wearable electronics. Highlights Adding PANI, Ppy, and PTh could improve the conductivity of the CNF sensor. Ppy doping has a good effect on the performance of the CNF strain sensor. CNF/Ppy strain sensor has high sensitivity, stability, and durability. CNF/Ppy sensors can detect deformation caused by human movement. CP-CNF composite material has good flexibility and mechanical properties.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2024
·
IF 10
Jialuo Ai,Yixuan Huang,Zhaoyi Yin,Yingshan Deng,Ling Yan,Jingwen Liao,Guoyan Liang,Chong Chen,Yunbing Chang,Cairong Xiao,Jiale Zhou,Zurong Zhu,Chengli Liu,Zhuo Jiang,Chengyun Ning,Zhengao Wang
Combining the detection of tumor protein markers with the capture of circulating tumor cells (CTCs) represents an ultra-promising approach for early tumor detection. However, current methodologies have not yet achieved the necessary low detection limits and efficient capture. Here, we introduced a novel polypyrrole nanotentacles sensing platform featuring anemone-like structures capable of simultaneously detecting protein biomarkers and capturing CTCs. The incorporation of nanotentacles significantly enhanced the electrode surface area, providing abundant active sites for antibody binding. This enhancement allowed detecting nucleus matrix protein22 (NMP22) and bladder tumor antigen (BTA) with 2.39 and 3.12 pg/mL detection limit, respectively. Furthermore, our developed sensing platform effectively captured MCF-7 cells in blood samples with a detection limit of fewer than 10 cells/mL, attributed to the synergistic multivalent binding facilitated by the specific recognition antibodies and the positive charge on the nanotentacles surface. This sensing platform demonstrated excellent detection capabilities and outstanding capture efficiency, offering a simple, accurate, and efficient strategy for early tumor detection. This article is protected by copyright. All rights reserved
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Zhiguo Wu,Dan Liu,Ying Deng,Runyi Pang,Jinjin Wang,Tian Qin,Zongzheng Yang,Rongliang Qiu
In this research, a new material, chitosan/polypyrrole (CS/PPy), was synthesized and linked with the Cr(VI)-reducing bacterial strain YL3 to treat Cr(VI)-polluted soil. The findings demonstrated that the synergistic application of strain YL3 and CS/PPy achieved the greatest reduction (99.6 %). During the remediation process, CS/PPy served as a mass-storage and sustained release agent in the soil, which initially decreased the toxic effects of high concentrations of Cr(VI) on strain YL3, thereby enhancing the Cr(VI) reduction efficiency of strain YL3. These combined effects significantly mitigated Cr(VI) stress in the soil and restored enzyme activities . Furthermore, wheat growth in the treated soil also significantly improved. High-throughput sequencing of the microorganisms in the treated soil revealed that CS/PPy was not only effective at removing Cr(VI) but also at preserving the original microbial diversity of the soil. This suggests that the combined treatment using strain YL3 and CS/PPy could rehabilitate Cr(VI)-contaminated soil, positioning CS/PPy as a promising composite material for future bioremediation efforts in Cr(VI)-contaminated soils.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2024
·Vol. 20
·期 49
·2406001
·
IF 13
Liwen Zhang,Jiawei Du,Peng Tang,Xueying Zhao,Chuangwei Hu,Yu Dong,Xuyang Zhang,Nana Liu,Bo Wang,Ruihui Peng,Yaohong Zhang,Guohua Wu
Regulating the different growth states of polypyrrole (PPy) is a key strategy for obtaining PPy composites with high electromagnetic wave (EMW) absorption properties. This work finds that the growth states of PPy is regulated by controlling the amount of pyrrole added during the preparation of composites, so as to regulate the development of conductive networks to obtain excellent EMW absorption performance. The POP/PPy-200 composite achieves an effective absorption bandwidth (EAB) of 6.24 GHz (11.76–18.00 GHz) at a thickness of only 2.34 mm, covering 100% of the Ku band. The minimum reflection loss of −73.05 dB can be demonstrated at a thickness of only 2.29 mm, while at the same time showing an EAB of 5.96 GHz to meet the requirements of “thin”, “light”, “wide”, and “strong”. Such excellent EMW absorption performance is attributed to the conductive loss caused by the regulation of the growth states of PPy and the polarization loss caused by the heterostructure. This work also addresses the key challenge that porous organic polymers (POPs) cannot be applied to EMW absorption due to poor conductivity and providing new insights into the candidates for EMW absorbing materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Yang Cui,Hongda Xu,Liming He,Ruifen Guo,Quan Jin,Xiaolong Wang
In this paper, layered porous SiC scaffolds were prepared by freeze casting and sintering, and then followed by loading polypyrrole (PPy) on its surface by in-situ polymerization to obtain porous SiC/PPy composites with different PPy content. The loaded PPy forms a good three-dimensional (3D) conductive network, thus the electrical conductivity and the dielectric loss capability of the sample is improved. Moreover, the porous structure provides more SiC-PPy heterogeneous interfaces for charge accumulation, leading to interfacial polarization and relaxation, further enhancing the microwave absorption performance. Compared with pure SiC particles, SiC/PPy-25 shows an increase in the minimum reflection loss (RL) from −8.64 to −39.1 dB, effective absorption bandwidth (RL < −10 dB) of 4.72 GHz, and comparatively thinner matched thickness of 1.7 mm. We provide a microwave absorption material with simple synthesis, high efficiency and wide application prospect.
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2024
·
IF 1.3
Hui Yang,Xiaoqin Xu,Bichao Shu
A highly sensitive and selective molecularly imprinted polymer-based electrochemical-surface plasmon resonance (MIP-based EC-SPR) sensor was developed for the determination of modafinil in saliva samples. The optimal MIPpy film was synthesized using a modafinil concentration of 1 mM and a constant potential electropolymerization method. The fabricated sensor exhibited a wide linear range (0.1 μM to 10 μM), low detection limits (LOD: 50 nM, LOQ: 170 nM), and high selectivity towards modafinil, with selectivity coefficients of 8.5, 6.2, and 12.7 for adrafinil, armodafinil, and caffeine, respectively. The sensor also demonstrated excellent reproducibility (RSD: 4.2 %) and long-term stability (92 % response after one month). Furthermore, the applicability of the sensor in real samples was validated using spiked saliva samples, with recovery values ranging from 94.7 % to 103.5 %. These results highlight the potential of the MIP-based EC-SPR sensor as a powerful tool for the rapid, sensitive, and selective detection of modafinil in complex biological matrices.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Ming Qiu,Hean Zhang,Lu Han,Donghao Qi,Qianling Cui,Longxiao Zhang,Lidong Li
Integrating multifunctional nanomaterials with phase change material (PCM) provides great potential in the fields of thermal management, energy storage, infrared stealth and thermal camouflage. Herein, shuttle-shaped β-FeOOH nanoparticles were firstly prepared and coated with one layer of poly(pyrrole) (PPy) as the photothermal agent. The β-FeOOH@PPy nanocomposites can easily thermally transfer into Fe 3 O 4 @PPy at a low calcination temperature of 300 °C while maintaining their shuttle-like morphology. The obtained Fe 3 O 4 @PPy exhibited a wide-spectral strong absorption over the UV-Vis-NIR region, excellent photothermal conversion effect, and magnetic properties. To fabricate the composite film, the β-FeOOH@PPy nanocomposites were dispersed into the matrix of polyimide (PI) precursor, and then freeze-dried to acquire hybrid aerogel. During the thermal treatment at 300 °C, both the thermal imidization of polymer backbone into PI and crystal transformation of β-FeOOH into Fe 3 O 4 took place at the same time, resulting in PI/Fe hybrid aerogel. By vacuum impregnation of polyethylene glycol (PEG) as the PCM into the aerogel framework, a flexible PI/Fe/PEG composite film was obtained, which possessed strong wide-spectral absorption, magnetic property, and thermal regulation capacity. Taking advantages of the thermal energy absorption capacity of PEG and the reduced radiation via the wide NIR absorption of Fe-based nanocomposites, the PI/Fe/PEG composite film could achieve superior performance in infrared stealth and thermal camouflage.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Ziyu Zhang,Yimin Zhou,Dongming He,Zhenglu Miao,Xutong Zhang,Zhimin Li
Octylphenol (OP) is a chemical compound that has found extensive industrial and agricultural production applications. However, its occasional exposure to water can pose significant risks to aquatic organisms. Therefore, developing a simple, cost-effective, and stable electrochemical monitor for OP to ensure environmental safety. Based on a novel nitrogen-doped hollow carbon bowl (N-HCB) as the electrical conductor, OP as the template molecule, and pyrrole (Py) as the functional monomer, the sandwich-structure molecularly imprinted polymer (N-HCB@PPy/MIP) nanocomposites were prepared. It incorporated the intercalated layer of N-HCB that provides a superior electrocatalytic substrate, the double-sided molecularly imprinted layer that generates highly specific surface imprinted cavities, and an electronic barrier of the non-imprinted PPy to external molecules. The sensors demonstrated a highly selective and ultrasensitive electrochemical response to OP, exhibiting a detection range of 0.5–200 μM with a limit of detection (LOD) of 0.07 μM, while showing good stability, reproducibility, and excellent selectivity to other interferences. Further test results indicate its suitability for the detection of OP in real environmental samples.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Tianmeng Zhang,Zhongyang Huang,Dengshuo Cui,Zicheng Luo,Xiuping Zhuo,Yanfeng Liu,Xiuyan Wang,Kai Wu,Jianfeng Zhang,Guibin Li,Shumei Sun,Han Zuilhof,Hao Lu
Two-dimensional (2D) lamellar membranes hold immense promise for sustainable separation technologies, yet their inherent dense interlayer architecture compromises permeability and selectivity. Herein, we propose a defect engineering strategy to construct hierarchical nanofluidic channels within graphene oxide (GO) membranes, by using intercalating polypyrrole (PPy) nanosheets with in-plane nanopores. The synergistic assembly of GO and PPy nanosheets enables tuning of both interlayer spacing and intra-plane nanopores, thereby generating multiscale transport pathways. The optimized PPy/GO membrane achieves a trade-off between selectivity and permeability: >96 % rejection for Congo red, <15 % rejection for salts (NaCl, Na 2 SO 4 , CaCl 2 ), and a remarkable water flux of 310 L m −2 h −1 bar −1 — 5-fold higher than state-of-the-art 2D membranes. Interface selective sum frequency generation (SFG) spectroscopy results reveal that PPy intercalation greatly enhances the order of hydrogen-bonded water at the membrane-water interface, which correlates with the fast and selective separation of dye and salt. Molecular dynamics and hydrodynamic simulations consolidate that the hierarchical channels enhance water permeation via defect-pore sieving, while selectively block organic dyes through size exclusion. Our work not only disentangles the intricate role of defect engineering in tailoring organic/salt separation for 2D membranes, but also provides a scalable approach for advanced separation systems in hypersaline wastewater treatment and resource recovery.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）