Sustainable Energy & Fuels
·
2017
·Vol. 2
·期 1
·147-154
·
IF 0
Leicong Zhang,Xuecheng Yu,Pengli Zhu,Fengrui Zhou,Gang Li,Rong Sun,Ching-ping Wong
In this study, a flexible asymmetrical solid-state filter paper-based supercapacitor was fabricated. Common laboratory filter paper (FP) provides toughness and flexibility to the whole device. Simply, traditional electroless Ni plating and electro-deposition were introduced to change the electrical conductivity of FP as a flexible and conductive substrate material. Then, the electrochemical active material Co(OH)2 and active carbon (AC) were respectively coated on the conductive Ni paper through electro-deposition and physical coating methods to prepare Ni/Co(OH)2-FP as a positive electrode and Ni/AC-FP as a negative electrode. Moreover, they were separated by a piece of FP coated with an ionic gel electrolyte to assemble the flexible asymmetrical solid-state supercapacitors. This supercapacitor exhibits superior flexibility, large volume energy density (0.64 mW h cm−3), and good bending cycle performance (95.89% capacitance retention after 500 bending cycles). It has been demonstrated that the assembled supercapacitor can still power a red light-emitting diode (LED) indicator normally regardless of the bending state and bending frequency. This study may provide promising insights for the design and fabrication of a flexible asymmetrical solid-state supercapacitor in a flexible power supply for wearable and portable applications.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
THIN SOLID FILMS
·
2025
·
IF 2
Shanshan Duan,Hua Meng,Guanda Yang,Dirk W. Schubert
In this study, nickel-plated melamine sponge composites were prepared via a simple autocatalytic deposition for potential applications in flame resistance, electromagnetic absorption, and strain/pressure sensing. Commercial melamine foams were used as the base material, and nickel plating was achieved through a controllable process involving sensitizing, activating, and autocatalytic plating steps. The obtained Ni@Sponge composites were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermal gravimetric analysis (TGA) to collect the structure and thermal information. SEM images reveal uniform nickel distribution on the surface of the Ni@Sponge-High skeleton without significant structural deformation. Energy dispersive X-ray spectrometer (EDS) and FTIR analysis results confirm the nickel deposition, while TGA indicates enhanced thermal stability in the nickel-plated composite samples. Flame resistance tests demonstrate improved fire retardancy in the nickel-plated samples compared to that of the original sponge. Moreover, excellent electromagnetic absorption and strain/pressure sensing capabilities of Ni@Sponge-High based electronic sensors were observed, showcasing the potential applications of the composites in future human-machine interaction and artificial intelligence fields.
研究领域:
材料科学
·
传感器技术
·
电磁学
·
热力学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2023
·
IF 3.8
Qian Gao,Jiansong Li,Ruina Ma,Yongzhe Fan,An Du,Mingxu Yang,Xue Zhao,Yi Bian
A simple constant-potential electrodeposition process was used to manufacture a superhydrophobic Ni-plated stainless-steel mesh (SNSSM) with high corrosion resistance and chemical stability for oil–water separation. This novel Ni plating had a mountain-like micro/nano structure. This resulted in a rough surface that was modified with stearic acid (SA) to provide a good superhydrophobicity as well as remarkable corrosion resistance, chemical stability, and oil–water separation. The effects of the electrodeposition potential and time on the microstructural evolution , wettability , and corrosion resistance were discussed. The SNSSM obtained by deposition at − 2.0 V for 60 min and modifying the surface with SA, had a water contact angle (WCA) of 156.5° and an oil contact angle (OCA) of 0°. The corrosion current density of the superhydrophobic coating in a 3.5 wt% NaCl solution was 1.737 × 10 −8 A/cm 2 . The plating remained superhydrophobic after 96 h of immersion in the NaCl solution and maintained its superhydrophobicity in an environment with pH= 2–12. The SNSSM exhibited high separation efficiency and separation flux for mixtures of oil or organic solvents with water. In addition, it continued to exhibit a separation efficiency > 94.0% and stable reusability even after 30 cycles of separation.
研究领域:
材料科学
·
表面工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 35
·e55889
·
IF 2.7
Xiaohong Wang,Bin Yang,Yue Zhang,Yuqing Yang,Huijie Lu,Hao Wang,Ziyi Wang,Jiasheng Qian,Ru Xia,Ning Jia,Yuchao Ke
Phase-change materials (PCMs) have become a hot spot in the development of modern thermal management materials because of their absorbing and releasing heat while keeping the temperature constant during phase change process. However, their relatively low thermal conductivity (TC) considerably restricts their further application. In this work, graphene nanosheets (GNS) were initially nickel-plated to increase the contact area between adjacent GNS (in the form of Ni@GNS) by constructing a “point-surface” structure. Then, the prepared Ni@GNS was coated with polydopamine (PDA) to prepare PDA-Ni@GNS, which helped to effectively reduce the interface thermal resistance (ITR) between the filler and the matrix, and also made the prepared filler more easily dispersed in the polymer matrix. By constructing well-defined three-dimensional (3D) thermally conductive pathways in the matrix, the PCMs exhibited excellent TC and effectively prevented the leakage of polyethylene glycol (PEG) even at low filler loading. The results of thermogravimetry (TG), differential scanning calorimeter (DSC), and cyclic DSC tests jointly showed that the PDA-Ni@GNS/CNF-C/SA/PEG PCMs displayed excellent thermal storage properties, high latent heat as well as good cyclic thermal stability. The present study provides a facile way of preparing PEG-based PCMs, which are applicable in thermal management area.
研究领域:
材料科学
·
热能工程
✓ 已验证
DOI
高影响因子
Journal of Industrial Textiles
·
2024
·
IF 2.2
Yunxiang Yuan,Yizhi Ma,Xinchao Li,Ruixue Liu,Luning Sun,Hongchao Zhang,Sainan Wei
A high purity Ni plating layer was obtained on the surface of the plain cotton fabric by electroless nickel plating. The micromorphology and elemental composition of the Ni plating layer were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural absorbing composites with glass fiber (GFs)/epoxy resin (EP) as permeable layer, nickel coated fabric/EP as absorbing layer and carbon fiber UD cloth (UDCFs)/EP as reflecting layer were prepared by vacuum assisted resin perfusion (VARI). The effects of different thicknesses on the microwave absorption properties and mechanical properties of composites were investigated. The results show that the lowest reflection loss (RL) is −31.02 dB, the effective absorbing bandwidth (RL < −10 dB) is 6.21 GHz (11.55 GHz - 17.76 GHz), and the maximum tensile and bending loads endured are 41.36 KN and 1.63 KN at 15.14 GHz with a thickness of 2.5 mm, which provides a good reference value for the subsequent preparation of magnetic/dielectric composites with both excellent microwave absorption and mechanical properties.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2020
·
IF 7.094
Junjun Huang,Chengmei Gui,Haodong Ma,Peng Li,Wangping Wu,Zhenming Chen
Electroless nickel plating provides a rapid and low-cost approach to prepare surface-metallization material, but complicated technology would increase cost and restrict its application. In this work, a new kind of Pd nanoparticle/polymer brush (Pd/ PB ) catalytic solution ( AS ) with a mixture of deionized water, ethanol, 3-aminopropyltriethoxysilane ( KH550 ), PdCl 2 solution was designed to modify and activate polyethylene terephthalate ( PET ) simultaneously. Pd nanoparticle could be adsorbed by PB with –NH 2 , Si–O–Si groups from hydrolyzed KH550. An activated layer with Pd/PB structure established on PET surface after coating AS solution. The generated Ag/PB that served as seed to catalyze the electroless nickel plating. As a result, a facile route for electroless nickel plating was achieved. The maximum effective thickness, rupture work and adhesion of Ni-plated coating were about 0.8 μm, 0.4 J/m 2 , and 5B, respectively, and it maintained considerable conductivity even after 1000 times of cyclical bending. This dependable technology has great potential application in the preparation of metal-polymer material.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Linhua Rao,Jiayi Tang,Sufei Hu,Liguo Shen,Yanchao Xu,Renjie Li,Hongjun Lin
While electroless nickel plating is considered as a promising candidate for fabrication of metallized polymer composite membranes with high performance, it suffers from problems of complex and high-cost pretreatment procedure, hindering its large-scale implementations. It is hypothesized that, inkjet printing integrated with electroless plating (ELP) can serve as a facile and economical membrane fabrication method to overcome above problems. The new method proposed in this study was processed by inkjet printing silver ions and pyrrole inks as catalytic layer followed by electroless Ni deposition on polypropylene (PP) membrane surface. Successful modification was verified by characterizing the surface morphology and elemental compositions of the membranes. In comparison to the pristine PP membrane, the PPy-Ag/Ni modified membrane demonstrated lower surface resistance (2.3 Ω), better hydrophilicity (44.9°) and higher pure water flux (1135.1 L m −2 h −1 ). When applying an external electric field (10.0 V cm −1 ), the average flux of the PPy-Ag/Ni membrane for yeast filtration increased from 107.8 to 137.7 L m −2 h −1 , which was about 2.0 times higher than that of the pristine PP membrane. Meanwhile, the PPy-Ag/Ni membrane possessed a maximum flux recover rate when applied with an external electrical field. This work provided a facile and efficient approach for fabrication of composite conductive membranes.
研究领域:
材料科学
·
膜技术
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Songnan Zhang,Fengcai Zhang,Zhibin Zhang,Guolong Li,Hiroshi Fu,Jianying Huang,Yajun Wang,Zhongxiang Lei,Xiaoming Qian,Yuekun Lai
The icing phenomenon has caused much inconvenience to people's life. With the continuous progress of technology, it has been found that hydrophobic materials can be used in the anti-icing field, however icing still occurs on hydrophobic surfaces with long-term using in extremely harsh environments. Therefore, materials with anti-icing/icephobic and deicing functionalities have become an innovative strategy. In this paper, photothermal hydrophobic materials with anti-icing/icephobic and photothermal deicing properties are prepared using the photothermal nickel, Chinese ink and polydimethylhydrosiloxane with low surface energy. Due to the synergistic effect of the photothermal nickel nanoparticles and carbon nanoparticles in Chinese ink, the prepared material has a fast temperature rise rate at 1000 W/m 2 , which can reach the equilibrium temperature of 72 °C within 80 s. The freezing time of water droplets can be delayed to 1018 s at −15 °C, which is 11 times longer than that of nickel-plated materials. The ice on the coating melts rapidly and slides off along the inclined surface under the sunlight, proving that the material has a good photothermal deicing performance. Additionally, the coated surface has excellent wear resistance and UV resistance, which can be used outdoors for a long time. This powerful electroless nickel plating fabric, integrated with anti-icing/icephobic and fast deicing functionality with photothermal and drag reduction effect, provides a new approach to solve the icing problem in outdoor clothing.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2021
·
IF 17.881
Junjun Huang,Wangping Wu,Ruxia Zhang,Guoqing Lu,Bing Chen,Zhenming Chen,Chengmei Gui
Cu/Ag foils or conducting pastes were proposed and developed to fabricate the electrodes for triboelectric nanogenerators (TENGs) on support surface. But the technology is limited by the substrate surface morphology, especially complex shape and high roughness substrate. In this study, electroless nickel plating on polyethylene terephthalate surface for TENGs electrode was established, the output performances under different external forces were studied comprehensively to obtain a full understanding of the relationship between the density of electrostatic charge (δ) and strain of polydimethylsiloxane (PDMS) dielectric material. Results showed that PET modified with primer (SiO 2 particles-resin mixed liquors) could absorb Pd 2+ through coordination effect, which acted as catalyst for the deposition of Ni coating on its surface. The deposition of bead-like structure Ni coating on PET surface with a higher average roughness value (Sr) possessed excellent crystallization and electrical property. The TENGs device with Ni coating electrode was measured and compared. The results showed that the relationship between its output electrical signal and SiO 2 content in the primer also presented a similar trend for the Sr. The TENGs device had stable and excellent performances and yielded a maximum open-circuit voltage of 39 V. More importantly, a new calculation method for the PDMS strain of formation δ was proposed by equation of state. It was also revealed that the δ and PDMS strain represented a linear regression relation, and the formation of vertical intercept is due to TENGs device internal resistance. This work proposes a visible solution for the flexible, low-cost and lightweight TENGs, and offer the quantitative information about the influences of dielectric material strain on the output performance which could not be reported so far.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2019
·
IF 3.218
Na Wang,Gaoyi Han,Hua Song,Yunzhen Chang,Wenjing Hou,Yaoming Xiao
The flexible supercapacitors (FSCs) have attracted much attention with the development of personal electronics. Here, the polyethylene-polypropylene fibrous membranes (PE-PPFMs) are used as the substrate to prepare conductively metallized organic films (Ni/PE-PPFMs) by employing electroless nickel plating method. After graphene oxide (GO) dispersion is coated on the substrate of Ni/PE-PPFMs, electrochemical reduction is carried out to reduce GO and the electrodes of ErGO/Ni/PE-PPFMs have been obtained. The preparation conditions have been optimized and the electrodes have also been characterized in detail. The capacitive performances of the electrodes are evaluated by assembling the FSCs with the NaOH/polyvinyl alcohol (NaOH/PVA) as the gel electrolyte. The specific capacitance of the optimized electrode can reach 368.2 mF cm −2 (147.3 F g −1 based on the active materials), and the maximum energy density of the cell can reach 16.2 μWh cm −2 (or 3.2 Wh kg −1 ) when the power density is 0.24 mW cm −2 (48 W kg −1 ). Meanwhile, the cell exhibits excellent cyclic stability (the capacitance retention can still keep at 89.5% after 10,000 cycles) and flexibility (84.4% capacitance retention after 5500 bending cycles). This strategy provides a simple and environmentally friendly method to prepare flexible rGO-based electrodes.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 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）