ACS Omega
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2020
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IF 2.87
Xiangyu Qian,Ruoyu Qiu,Chunhong Lu,Yiping Qiu,Zhuangchun Wu,Shiren Wang,Kun Zhang
Because of flexibility, compactness, weavability, and ergonomic design, yarn-shaped lithium-ion batteries (LIBs) have enormous potential applications in wearable electronics. Still, the yarn-shaped LIB with the ability to meet commercialization requirements has never been reported, owing to the current challenge in complex material synthesis technologies, expensive raw material costs, poor safety performance, and nonstandard manufacturing equipment. Herein, we propose a yarn-shaped LIB that meets the aforementioned requirements. With a highly conductive and flexible stainless-steel yarn acting as the current collector, the electrode active materials and the gel electrolyte, which are commercially available at low cost, are uniformly coated onto the stainless-steel yarn by a simple and facile dipping-drying method. Even at different deformation conditions (i.e., bending or knotting), the specific capacity of the yarn-shaped LIB (7 cm long, <2 mm in diameter) assembled from graphite and lithium iron phosphate electrodes is maintained >85%. After charged treatment, it can successfully power up an electronic watch and an electronic thermo-hygrometer. Thanks to the simple preparation process, low cost of raw materials, and good safety performance, this work can promote the commercialization of wearable energy storage devices.
研究领域:
材料科学
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能源存储
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电子工程
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产品关联
DOI
PubMed
高影响因子
ENERGY & FUELS
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2022
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IF 4.654
Changhong Yu,Cheng Yue,Baojiang Sun,Xin Yang,Jiakai Ji,Zilong Meng,Litao Chen
Hydrate can easily form and cause plugging in offshore oil and gas pipelines. As the managing strategy moves from full avoidance to dynamic control, antiagglomerants (AAs) could be an economical and efficient option for hydrate management. Searching for new efficient hydrate AAs is always needed. In this work, the antiagglomerating performances of 57 commercial chemicals, including cationic surfactants, zwitterionic surfactants, nonionic surfactants, and polymers, to methane hydrate in an oil–gas–water system were evaluated by using a rocking-cell apparatus. The slider-moving trajectories were recorded during hydrate formation. The performances of AAs were evaluated based on the slider-moving profiles at various hydrate fractions. It was found that cocamidopropyl dimethylamine, a nonionic surfactant that is labeled as an A class AA, could fully avoid hydrate plugging when the hydrate fraction was under 18.76%. The slider-moving trajectory in the full range of the cell indicated that the hydrate was well-dispersed in the liquid phase. Besides, 23 chemicals mainly from cationic and zwitterionic surfactants, which are labeled as B class AAs, could partially avoid hydrate plugging at various hydrate fractions (10.96–19.92%). The slider could move in a partial range of the cell, indicating that the hydrate may agglomerate and accumulate at the end of the cell. The rest of the chemicals were labeled as class C AAs, with which the slider was fully stuck. The working mechanism is discussed for an insightful understanding on the antiagglomerating performances of the screened AAs. Chemicals with a combined presence of an amide group and an amine group exhibit great potential for hydrate antiagglomeration, while the hydrogen-bonding ability of the hydrophilic amine headgroup may be adversely affected by the incorporation of anions.
研究领域:
化学工程
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能源科学
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材料科学
✓ 已验证
DOI
高影响因子
CARBON
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2019
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IF 7.466
Fanning Meng,Liguo Gao,Yeling Yan,Junmei Cao,Ning Wang,Tonghua Wang,Tingli Ma
The high cost of hole transporting materials (HTMs) and noble metallic electrodes limits the applications of perovskite solar cells (PSCs). Carbon materials, including carbon nanotube, graphene, and carbon paste, have been utilized for HTMs and noble-metal-free PSCs. Unlike other carbon materials, coal has extensive sources and lower price. A simple preparation process and an effective sandwich structure for the use of this material in PSCs were obtained by hot-pressing method. After the key parameters were adjusted, the power conversion efficiencies are 10.87% (0.3 cm 2 ) and 8.72% (1 cm 2 ). Therefore, devices with coal-based carbon electrodes have better stability than conventional devices. Our work proposes a promising future for the commercialization of low-cost and highly stable PSCs.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF VIROLOGICAL METHODS
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2021
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IF 2.014
Yunlong Yan,Maoxi Huang,Li Wang,Wei Xue,Xin Xie,Xiangyang Li
Cucumber mosaic virus (CMV) is a detrimental plant virus in agricultural production. Traditionally, the half-leaf method using Nicotiana glutinosa has been used for screening agrochemicals to control CMV. However, this forms a time-consuming experimental bottleneck. In this study, we constructed a rapid screening model for anti-CMV compounds using CMV. In short, purified CMV particles were labeled through amine reactions and then subjected to binding studies with commercial compounds. The relative gene expression levels were then confirmed. Additionally, the rapid screening model results were verified using synthesized compounds. The commercial compounds ningnanmycin, ribavirin, and moroxydine hydrochloride bound to CMV with dissociation constants of 0.012, 2.870, and 0.069 μM, respectively, and they significantly inhibited expression of the gene for the CMV coat protein in CMV-infected tobacco leaves. This rapid screening model was assessed using our synthetic compounds N12 , N16 , and N18 through binding, which were shown to have dissociation constants 0.008, 0.025, and 70.800 μM, respectively, as well as via gene expression studies. Thus, a rapid method for screening anti-CMV commercial compounds and our synthetic compounds was constructed and confirmed.
研究领域:
农业科学
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植物病理学
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药理学
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产品关联
DOI
PubMed
高影响因子
Nano Energy
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2022
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IF 19.069
Zhihai Wu,Yichen Zhang,Bintao Du,Keyang Yang,Jun Wu,Tianyi Dai,Chengkun Dong,Jun Xia,Anlang Wu,Zhenfu Zhao
Perovskite nanocrystals (PNCs) are promising to replace the traditional phosphor color conversion layers in backlit displays due to their excellent optical properties , which can enhance the color gamut and saturation of displays. However, poor stability and low luminescence efficiency hinder the development of perovskite-based devices. Here, inspired by the Yunnan cicada wing, a low-cost, easy-to-fabricate, and large-area (> 78 cm 2 ) all-dielectric metasurface based on the Purcell effect is developed to tune and improve the light extraction efficiency of PNCs. All-dielectric metasurfaces composed of weakly disordered TiO 2 /PS spheres are embedded in the PNCs/PVDF ( Poly (vinylidene fluoride)) films prepared by in-situ fabrication strategy, resulting in 3.19-fold photoluminescence (PL) maximum enhancement of these composite films . The stability of PNCs is also markedly improved after PVDF encapsulation. As an application demo, these all-dielectric metasurface-modulated perovskite composite films are applied in LCD backlit, with the color gamut of 157% of commercial LCD and 107% of NTSC, showing tremendous potential in high-end lighting and display. Furthermore, combined with the scalability of large-area fabrication, cost-effective weakly disordered metasurfaces are a potential method to bridge the gap between high-efficient laboratory demonstrations and commercialization in the field of display.
研究领域:
材料科学
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光电技术
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显示技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Zhihai Wu,Yichen Zhang,Bintao Du,Guodong Tong,Chengkun Dong,Hao Zhang,Jun Wu,Jun Xia,Ziyang Hu,Zhenfu Zhao
Perovskite nanocrystals (PeNCs) have been regarded as one of the most promising candidate materials for next-generation display technology due to their remarkable optical performance. However, addressing the limitations of inherent instability and low luminescence efficiency of PeNC films is still a huge obstacle in its commercialization process. Herein, the low-cost and large-area perovskite nanocrystal composite films (NCFs) based on hexagonally distributed TiO 2 -based metasurface (inspired by the surface structure of butterfly wings) in combination with PeNCs encapsulated in PMMA matrix were fabricated. The photoluminescence intensity of perovskite NCFs can be enhanced by a maximum of 3.89 times based on the Purcell effect by tailoring to match the emission peaks of their PeNCs in various bands using the flexibility of metasurface design. The encapsulation of PMMA polymer and TiO 2 nanocavities also effectively enhanced the stability of PeNCs. Benefiting from these favorable characteristics, perovskite NCFs are applied to liquid crystal displays (LCDs) as color conversion layers, with color gamut reaching 122% of the NTSC standard and 180% of the commercial LCD screen, respectively, demonstrating that perovskite NCFs possess enormous potential in the high-end display fields. Furthermore, this metasurface fabrication process avoids complicated, time-consuming, and expensive process flow, laying the foundation for further commercialization beyond the laboratory.
研究领域:
材料科学
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光学
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显示技术
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纳米技术
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DOI
高影响因子
ADVANCED MATERIALS
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2024
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IF 27.4
Lei Hu,Yulang Ren,Ciwei Wang,Jiedong Li,Zehai Wang,Fu Sun,Jiangwei Ju,Jun Ma,Pengxian Han,Shanmu Dong,Guanglei Cui
For preparing next-generation sulfide all-solid-state batteries (ASSBs), the solvent-free manufacturing process have huge potential for the advantages of economic, thick electrode, and avoidance of organic solvents. However, the dominating solvent-free process is based on the fibrillation of polytetrafluoroethylene, suffering from poor mechanical property and electrochemical instability. Herein, a continuously solvent-free paradigm of fusion bonding technique is developed. A percolation network of thermoplastic polyamide (TPA) binder with low viscosity in viscous state is constructed with Li 6 PS 5 Cl (LPSC) by thermocompression (≤5 MPa), facilitating the formation of ultrathin LPSC film (≤25 μm). This composite sulfide film (CSF) exhibits excellent mechanical properties, ionic conductivity (2.1 mS/cm), and unique stress-dissipation to promote interface stabilization. Thick LiNi 0.83 Co 0.11 Mn 0.06 O 2 cathode can be prepared by this solvent-free method and tighly adhered to CSF by interfacial fusion of TPA for integrated battery. This integrated ASSB shows high-energy-density feasibility (>2.5 mAh·cm −2 after 1400 cycles of 9200 hours and run for more than 10 000 hours), and energy density of 390 Wh·kg −1 and 1020 Wh·L −1 . More specially, high-voltage bipolar cell (≥8.5 V) and bulk-type pouch cell (326 Wh·kg −1 ) are facilely assembled with good cycling performance. This work inspires commercialization of ASSBs by a solvent-free method and provides beneficial guiding for stable batteries. This article is protected by copyright. All rights reserved
研究领域:
材料科学
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电化学
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储能技术
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电池技术
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2022
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IF 7.139
Yue Zhang,Chengxu Zhang,Yunjie Mei,Thiquynhxuan Le,Haodong Shao,Hao Jiang,Yuebin Feng,Jue Hu
Two electron oxygen reduction reaction to produce hydrogen peroxide (H 2 O 2 ) is a promising alternative technique to the multistep and high energy consumption anthraquinone process. Herein, Ni–Fe layered double hydroxide (NiFe-LDH) has been firstly demonstrated as an efficient bifunctional catalyst to prepare H 2 O 2 by electrochemical oxygen reduction (2e − ORR) and oxygen evolution reaction (OER). Significantly, the NiFe-LDH catalyst possesses a high faraday efficiency of 88.75% for H 2 O 2 preparation in alkaline media . Moreover, the NiFe-LDH catalyst exhibits excellent OER electrocatalytic property with small overpotential of 210 mV at 10 mA cm −2 and high stability in 1 M KOH solution. On this basis, a new reactor has been designed to electrolyze oxygen and generate hydrogen peroxide. Under the ultra-low cell voltage of 1 V, the H 2 O 2 yield reaches to 47.62 mmol g cat −1 h −1 . In order to evaluate the application potential of the bifunctional NiFe-LDH catalyst for H 2 O 2 preparation, a 1.5 V dry battery has been used as the power supply, and the output of H 2 O 2 reaches to 83.90 mmol g cat −1 h −1 . The excellent electrocatalytic properties of 2e − ORR and OER make NiFe-LDH a promising bifunctional electrocatalyst for future commercialization . Moreover, the well-designed 2e − ORR-OER reactor provides a new strategy for portable production of H 2 O 2 .
研究领域:
电化学
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催化
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材料科学
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化工
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产品关联
DOI
高影响因子
Nano Energy
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2022
·
IF 19.069
Weichun Chen,Wei Fan,Qi Wang,Xichen Yu,Yu Luo,Weiting Wang,Ruixin Lei,Yi Li
Smart wearable electronics with harvest energy are rapidly developing in modern life. Fiber-based triboelectric generators (TENGs) are gaining extensive attention for energy harvesting and human motion sensing, due to flexible, lightweight, and comfortable properties. However, it is difficult to coordinate the high electrical output performance of fiber-based TENGs with the requirements of human wearing comfort (abrasion resistant, air permeability and skin-friendliness). Herein, a novel nano-micro structure yarn (NMSY) with three layers was proposed via combining conjugated electrospinning as well as ring spinning together. Therein, electrospinning Nylon 11 nanofibers were applied as the intermediate layer to enhance electrical output performance and ring spinning polyester fibers wrapped as the outermost layer to improve abrasion resistance . The obtained NMSY exhibits high output voltage (17.5 V in 3.5 cm) and wear resistance (4500 abrasion cycles). Furthermore, an electronic textile (e-textile) was knitted with NMSY (2.5 × 2.5 cm 2 ), which exhibited a power density of 487.8 mW/m 2 at a load resistance of 700 MΩ. Owing to the unique interconnected loop structure of knitted textiles, NMSY e-textile shows good air permeability (147.3 mm/s), water vapor transmission rate (3470 g/(m 2 ·24h)) and excellent skin-friendly. In practical application, NMSY e-textile can lit up 22 LEDs and also can charge the commercial capacitors efficiently. Besides, NMSY as well as the corresponding e-textile can also be used as self-powered sensors to monitor body movement. In summary, the superior NMSY presented in this work could enhance energy harvest and wearability, which would pave the way toward full-fledged commercialization of the TENGs in the future.
研究领域:
材料科学
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纺织工程
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能量收集
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可穿戴技术
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传感器
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）