JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Xiaoyin Cao,Lijuan Yang,Lijuan Yan,Zhaoqi Zhu,Hanxue Sun,Weidong Liang,Jiyan Li,An Li
Phase change materials (PCMs) with ideal light-to-thermal conversion efficiency play an important role in solar energy storage and conversion . Hence, we report the fabrication of a novel composite PCMs (CPCMs) device based on ZnO nanorods deposited indium tin oxide (ITO) glass loading with fatty amines. ZnO nanorods were deposited on the ITO glass using a three-electrode electrodeposition method, and 1-Hexadecylamine (HDA) was loaded on the ITO glass via spin-coating, followed by spraying polypyrrole (ppy) on the surface of CPCM device to improve thermal conductivity and solar absorption. The as-prepared CPCM device exhibits excellent light-to-thermal conversion efficiency, achieving a high conversion efficiency of 90.2% obtained at 1sun owing to its high light absorption (80%), enhanced thermal conductivity (improved by 57.8%), and the unique vertical aligned nanorods structure which could significantly decrease tortuosity, thereby reducing thermal route and lowering thermal response time. Furthermore, the electro-to-thermal conversion efficiency of the CPCMs device has also been investigated and the results show that it can reach up to 69.8% under a low voltage of 5 V, indicating that the CPCM device has a high potential in the field of electro-to-thermal conversion. Based on the benefits listed above, the CPCM device may serve an ideal platform for a wide range of solar energy storage and conversion applications.
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SENSORS AND ACTUATORS A-PHYSICAL
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2022
·
IF 4.291
Jiaojiao Zheng,Hong Zhang,Guo Xiao,Tianyu Cao,Jie Yang,Yinhu Qu
Flexible pressure sensors have attracted considerable attention due to their widely applications in healthcare monitoring and artificial intelligence. However, most of them are based on the petroleum and petroleum derivatives , leading to the increasing carbon emission and the aggravating deterioration of environment. On the other hand, it remains a challenge to explore pressure sensors that possess excellent superhydrophobicity and hence can be used in harsh environment. To solve these issues, copper nanowires functionalized cotton fibers (Cu NWs/cotton) is reported here to fabricate piezoresistive pressure sensor through a facile one-step dip-coating process. The Cu NWs coated on cotton fibers not only constructed conductive network but also decreased the surface energy by hexadecylamine capped on them, resulting excellent superhydrophobicity and the water contact angle reached 154°. Furthermore, the Cu NWs/cotton based sensor exhibited benign sensitivity (0.15 kPa −1 ), response time (400 ms), and stability (500 loading/unloading cycles). Owing to these merits, the cotton-based sensor was successfully applied for detecting human motions. The findings provide a facile and sustainable approach to fabricate superhydrophobic piezoresistive pressure sensor for flexible electronics even under humid environment .
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JOURNAL OF POWER SOURCES
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2022
·
IF 9.794
Haoru Wu,Likun Zhu,Yongzhu Fu
Molecular organosulfides as a class of cathode materials have the advantages of high capacity and sustainability. However, they could dissolve in organic liquid electrolytes resulting in capacity decay upon cycling. Herein, we report a strategy to anchor 1,2-benzenedithiolate (1,2-BDT) molecule as an example from dissolution by forming organosulfide-metal complex in situ in the cathode of a lithium battery . Copper nanowires (Cu NWs) are synthesized hydrothermally and then interweaved with carbon nanotubes as the current collector. Lithium 1,2-benzenedithiolate (1,2-LBDT) catholyte is added in the current collector and evaluated in a lithium half cell. In the first charge, 1,2-LBDT is converted to 1,2-BDT radicals which react with Cu NWs forming copper benzene-1,2-dithiolato complex Cu[Cu-(BDT) 2 ]. Cu NWs are consumed and the formed Cu[Cu-(BDT) 2 ] is hardly dissolved in the electrolyte. The whole process is revealed by Raman, X-ray diffraction, and quadrupole time-of-flight mass spectrometry and the redox mechanism is proposed. The cell exhibits a sloping discharge voltage profile with four visible plateaus, initial discharge capacity of 211.8 mAh g −1 , and 1000 cycles at 0.5 C rate.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Xiaoyin Cao,Lijuan Yang,Jie Cui,Qibiao Feng,Chengjun Wang,Zhaoqi Zhu,Hanxue Sun,Jiyan Li,Weidong Liang,An Li
The fabrication of composite phase change material (CPCM) with splendid light-to-thermal conversion efficiency and enhanced thermal conductivity is of significance for solar energy storage and transition. Hence, we report the creation of a novel CPCM prepared by impregnating 1-hexadecanamine (HDA) into nickel foam (NF) bearing with carbon nanotubes (CNTs) nanoarray via simple vacuum impregnation for photothermal conversion. The NF bearing with CNTs nanoarray employed in this study show outstanding light absorption of higher than 97% originated from its vertical aligned CNTs nanoarray which makes it possible for trapping the light to the most extent. Moreover, the metal nature of NF coupled with the carbon nature of CNTs nanoarray endow it excellent thermal conductivity, e.g. the thermal conductivity of CPCM is improved by 46.3% compared to that of the pure HDA. Thanks to the high latent heat of HDA (240 J/g), the latent heat of the CPCM are measured to be 132.2 J/g. In addition, it shows excellent thermal stability, e.g. the latent heat of the CPCM remains nearly unchanged after 50 times of melting/freezing cycles. Beneficial from their outstanding light absorption, excellent thermal conductivity and high latent heat, the as-prepared CPCM is an ideal platform solar energy harvesting , storage and transition. Under 1sun irradiation, the light-to-thermal conversion efficiency of the CPCM was measured to be 80.10%. Moreover, we detected the temperature-time curve of the CPCM under 30 V voltage, the result show that the CPCM also has great potential in the electro-to-thermal conversion application.
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FIBERS AND POLYMERS
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2022
·Vol. 23
·期 10
·2740-2747
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IF 2.347
Zheng Jiaojiao,Zhang Hong,Cao Tianyu,Zhu Yuanyuan,He Lizhong,Li Jianwei,Chen Xudong,Qu Yinhu
Superhydrophobic surfaces by creating surface roughness followed by coating with low-surface-energy fluorinated materials have been intensively developed on cotton fabrics. However, exploring superhydrophobic surfaces with non-fluorine components and further improving their attachment with cotton fabrics is still challenging. Herein, we developed a superhydrophobic surface on cotton fabric by dip coating with hexadecylamine (HDA) modified copper nanowires (Cu NWs) based on the coordination between Cu atoms and amine groups. The HDA modified Cu NWs not only created surface roughness, but also decreased the surface energy, leading to a superhydrophobic cotton fabric with water contact angle of 164 °±2.0 °. Furthermore, ultrasonic washing and tape peeling tests exhibited the Cu NWs were adhered tightly to the surface of cotton fibers, owing to the strong hydrogen bond between amine groups on HDA molecules and hydroxyl groups on cotton fibers. In addition, the superhydrophobic cotton fabric showed excellent antifouling, oil-water separation and infrared reflection properties. It is believed that this facile method provide promising industrial applications for fabricating superhydrophobic surfaces on other substrates.
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SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2022
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IF 7.305
Xingyun Ye,Lijuan Yang,Zhuoyue Tian,Peilei Zhou,Shuo Wang,Hanxue Sun,Zhaoqi Zhu,Jiyan Li,Weidong Liang,An Li
Phase change materials (PCMs) composites are of great importance for a wide range of applications in energy conversion and storage , waste heat recovery and utilization, thermal energy management in building, electronic devices cooling and heat insulation , etc. Herein, a novel strategy for the fabrication of PCM composites for solar/electro energy conversion and storage is reported. The polypyrrole (PPy) coated conjugated microporous polymers/expanded graphene (EG) carbon aerogels/HDA (PCMPECAs/HDA) composites were firstly obtained via Sonogashira–Hagihara cross-coupling reaction followed by a carbonization treatment, PPy coating and finally 1-Hexadecylamine (HDA) impregnation. The introduction of EG and PPy was to improve the porosity, thermal conductivity and photothermal performance. The resultant PCMPECAs/HDA composites exhibited excellent comprehensive performances, including relatively high thermal conductivity of up to 234.0% that of HDA, high energy storage density up to 205.10 kJ/kg, excellent shape and thermal stability and a remarkable photothermal conversion and storage efficiency of up to 93.5%, respectively. And after 300 times thermal and cooling cycles, the latent heat of PCMPECAs/HDA still remains up to 150.20 kJ/kg. Besides, the resultant composites also manifest excellent electro-thermal effect at low voltage. Due to the aforementioned advantages, PCMPECAs/HDA composites possess great potential applications in solar/electric energy conversion and storage.
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OPTICAL MATERIALS
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2022
·
IF 3.754
Yarong Gu,Yutao Jiang,Jingqi Chen,Chenqi Gao,Lingyan Feng,Jinbo Wu,Lijuan Zhao
Chiral inorganic nanomaterials provide a platform for a variety of applications. Chiral ligands are commonly used to induce chiroptical activity of nanoparticles through chiral transfer, while few materials have intrinsic chirality and the origins of their chirality are unclear as well. Here, several hexagonal copper sulfide (CuS) structures with achiral morphology which showed negative circular dichroism (CD) signals are reported. Although these CuS structures had variable maximum of anisotropic g-factor, the wavelength dependence of g-factor due to the structure-dependent chiroptical activity were similar for all these CuS structures, indicating that the negative CD activity could derive from some common microstructure in CuS. The simulation based on density functional theory (DFT) and time-dependent DFT (TDDFT) revealed that the CD may originate from (Cu 3 S 3 ) 2 nanostructure existing in hexagonal CuS. The enantio-selective catalysis of these homochiral CuS structure for oxidation of d -DOPA and l -DOPA was also investigated. All samples exhibited preferential catalysis of l -DOPA, which is conducive to distinguishing l -DOPA from d -DOPA. This work not only reveals the origin of CD in CuS inorganic structures with achiral morphology for the first time, but also provides a profound insight of applications of homochiral CuS structures in catalysis.
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LANGMUIR
·
2022
·
IF 4.331
Yang Yang,Li Wang,Xiaojiang Li,Dan Liu,Shanshan Dai,Hongsheng Lu
Phase-selective organogelators (PSOGs) have recently attracted more attention because of their advantages in handling oil spills and leaked organic solvents. However, it is difficult to separate and recover the organic phase and PSOGs from organic gels due to the strong interaction between them. Aiming to enhance the separation and recovery performance of the organic phase and PSOGs, we synthesized a series of pH-responsive PSOGs by using itaconic anhydride and fatty amines with carbon chain lengths of C12–C18. Here, PSOGs have an excellent gelation ability in that amounts of organic solvents and fuel oil can be solidified at a low concentration (<3 wt %). It is worth noting that these gels are stronger, which is more convenient for removal by a salvage operation. More importantly, compared with traditional organogelators, pH-responsive PSOGs can easily recover the organic phase and fuel oil with an adjustment of the pH without extraction or distillation. Because of the transformation between the hydrophilicity and hydrophobicity of PSOGs by pH stimulation, 83.15% PSOGs are recovered in three-cycle experiments. In addition, the recycled PSOGs can be used to realize the removal of the organic phase again. Herein, we find that pH-responsive PSOGs could be used as promising and sustainable materials for separating and recovering organic solvents/oils and PSOGs.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2022
·
IF 4.598
Shaokang Su,Chenfeng Guo,Li Li,Ying Xie,Song Wang,Kai Pan
By using cheap, stable, relative low-toxic precursors (the key of the design), a nanocomposite anode material composed of monodispersed nickel phosphide (Ni 2 P) nanocrystals in situ grown into three dimensional reduced graphene oxide (RGO) matrix has been fabricated through a “heating-up” synthesis method. With an average size of 5 nm, the Ni 2 P nanocrystals are wrapped within the interior as well as on the surface of the curling RGO matrix without aggregation. In this nanostructure , RGO has excellent conductivity and an interconnected porous network, enabling the Ni 2 P/RGO nanocomposites to provide ways for rapid electron transfer and lithium ion transport. Meanwhile, due to the small size and monodispersed phase of the Ni 2 P nanocrystals, it can adapt to the volume change during charging/discharging processes. As a result, the excellent lithium-storage performance has been shown by Ni 2 P/RGO nanocomposites, concerning a long-life cycling stability (389.9 mAh g −1 after 1000 cycles at 1 C) and a high rate capability (197.7 mAh g −1 at 50 C).
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Rui Zhang,Changlin Liu,Ruoxi Zhao,Yaqian Du,Dan Yang,He Ding,Guixin Yang,Shili Gai,Fei He,Piaoping Yang
There is an urgent need to develop photosensitive nanoenzymes with better phototherapeutic efficiency through simple processes. By exploiting semiconductor catalysis and defect chemistry principles, herein, a MnMoO x composite semiconductor nanoenzyme was developed to achieve a fully integrated theranostic nanoenzyme for highly efficient photo/chemo-enzyme-dynamic eradication of deep tumors. Relative to iron oxides, manganese oxides offer ideal catalytic performance under near-neutral conditions, which helps to broaden the suitable pH range of the MnMoO x nanoenzyme for antitumor therapy. Furthermore, with the assistance of glutathione depletion, Mn 4+ /Mo 6+ was successfully converted to Mn 2+ /Mo 5+ , inhibiting the scavenging of reactive oxygen species (ROS) and promoting cycling. Therefore, MnMoO x has favorable catalase (CAT)-like activity and oxidase (OXD)-like activity in the tumor microenvironment (TME) for promoting the “H 2 O 2 O 2 O 2 − ” and “H 2 O 2 OH” cascade reactions. The abundant oxygen vacancy defects also promote the surface plasmon resonance (SPR) effect in the second near-infrared (NIR-II) window of MnMoO x , which significantly enhanced its photothermal therapy (PTT) effect and catalytic activity. In detail, ROS production was significantly enhanced due to the adsorption of water and oxygen molecules by the rich oxygen vacancies of MnMoO x . MnMoO x also exhibited excellent multi-modal imaging activity (including computed tomography (CT), magnetic resonance imaging (MRI), and photoacoustic (PA)), which can be exploited to better guide the administration of medication.
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Acta Biomaterialia
·
2022
·
IF 10.633
Xiang Yu,Lin Zhu,Xiaohui Liang,Bochuan Yuan,Minshu Li,Shen Hu,Pingtian Ding,Lina Du,Junwang Guo,Yiguang Jin
Exposure to a nuclear accident or a radiological attack may cause serious death events due to ionizing radiation-induced injury and acute radiation syndrome (ARS). Recombinant human granulocyte colony-stimulating factor (G-CSF) is now used for the treatment of ARS. However, the current injection formulation might not ensure treatment as early as possible after a nuclear accident, resulting in a decrease in therapeutic efficiency. In the present study, we have developed a G-CSF wearable system (GWS) consisting of a commercial microchip, a temperature sensor , a gamma-ray detection sensor, a flexible heater, and a G-CSF temperature-sensitive microneedle (GTSMN) patch. G-CSF-containing hyaluronic acid solutions were cast into the mold to obtain G-CSF microneedles (GMNs), which were coated with a temperature-sensitive layer of dodecanoic acid-cetylamine salt to obtain GTSMNs. The flexible heater was prepared by jet printing Ag nanoparticle inks. The GWS and its components are explored and optimized in the aspects of electronics, mechanics, heat transfer and drug diffusion . The γ radiation signal is sensitively monitored by the GWS. The wearable G-CSF system immediately releases G-CSF into the body in response to signal feedback and provides maximal protection against ionizing radiation-induced injury. Therefore, the GWS is a promising wearable system against emergent ionizing radiation injury. Statement of significance Ionizing radiation-induced injury is always the very important public health problem all the global people care. Some medicines have been applied to protect the body from the injury. Unfortunately, sometimes the injuries accidently happen and the medicines cannot be administered in time, leading to serious acute radiation syndrome. Here, we design a wearable system loading G-CSF that has been approved by FDA to protect the body from ionizing radiation-induced injury. This system consists of a commercial microchip, a temperature sensor, a Gamma-ray detection sensor, a flexible heater, and a G-CSF temperature-sensitive microneedle patch. It can monitor γ radiation and immediately release G-CSF into the body to protect the body to the maximal extent. Therefore, the system is a promising wearable medical device against emergent ionizing radiation injury.
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高影响因子
Journal of Coatings Technology and Research
·
2022
·Vol. 19
·期 4
·1087-1100
·
IF 2.339
Liu Jing-yi,Wu Shi-zhao,Shen Zhu,Gao Jing,Hu Xin-quan,Li Guo-hua
Montmorillonite (Mnt) and organic polymer composite membrane are widely used to enhance the corrosive resistance of metal materials due to their unique properties. Herein, a uniform anticorrosion membrane coated on aluminum plate was fabricated with organic-modified nano-Mnt (OMnt) and epoxy resin (EP) as raw materials, which showed good smoothness, wear property and resistance to acidic and salty corrosion. The surface morphology, crystal phase, chemical composition, and microstructure of the OMnt/EP membrane were characterized by optical microscopy, small-angle X-ray diffraction, FTIR, SEM, and TEM, respectively. The results showed that the OMnt/EP membrane was constituted of OMnt and EP. The interplanar distance of OMnt was expanded from 1.44 to 5.36 nm. Electrochemical corrosive resistance of the membrane was tested with Tafel polarization curves and electrochemical impedance spectroscopy. The results showed that the thickness of the membrane had a positive effect on its anticorrosion performance. When its thickness was 0.18 mm, its corrosion voltage ( P corr ) increased along with its content of OMnt, while its corrosion current ( I corr ) showed increasing, decreasing and increasing trend as the content increased from 1 to 5%, from 5 to 7% and from 7 to 9%, respectively. When its content of OMnt was the same, its P corr increased along with its thickness, while its I corr decreased along with its thickness. Its maximum impedance reached 2.29 × 10 7 Ω, which was much greater than that of other EP membranes. Moreover, the corrosion resistance of the composite membranes decreased gradually as the immersion time increased, and the content of OMnt and the ratio of EP to OMnt could also affect the corrosion resistance of the membrane. These results show that the OMnt/EP composite membrane exhibits excellent anticorrosive property, which is highly promising for wide applications in industry.
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