npj Flexible Electronics
·
2024
·Vol. 8
·期 1
·1-10
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IF 12.3
Wang Zijian,Yu Wen,Gao Chaochao,Zhu Zhenye,Zhang Jiaheng
Fabricating high-conductive composites and constructing highly conductive networks are crucial for high-performance electrothermal film. In this study, an Ag nanowires/graphene (Ag/G) composite synthesized by liquid-phase exfoliation and in-situ photoreduction is mixed with carbon black (CB) to form a composite conductive ink, and a CB/Ag/G composite electrothermal film with a point-line-plane three-dimensional microstructure is obtained via blade coating process. Both the addition of Ag nanowires and a subsequent compression rolling treatment induce the establishment of the effective conductive network in the film, endowing it with an outstanding conductivity of 399.4 S cm −1 . The film reaches a T s of 204 °C with an input voltage of 3.0 V, and is successfully applied in water heating and de-icing, demonstrating its extraordinary electrothermal performance and vast potential for practical applications. The film is also used as an electromagnetic shielding film and heat dissipation substrate, showing exceptional electromagnetic shielding (42.5 dB) and heat dissipation properties.
研究领域:
材料科学
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能源技术
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2024
·Vol. 99
·期 8
·1788-1799
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IF 2.8
Xinyu Han,Shiyu Yuan,Zhaolian Zhu,Jiawen Mei,Qiyuan Huang,Liya Ji,Hailing Wang
BACKGROUND Surface properties and adsorption performance of carbon materials play a crucial role in the electrochemical two-electron oxygen reduction to produce H 2 O 2 . However, there is still a lack of in-depth research on commercial carbon blacks in this area. Herein, four typical commercial carbon blacks (Acetylene black (AB), Ketjen black EC 600JD, Vulcan XC 72 and Black Pearls 2000) were used as cathode catalysts to generate H 2 O 2 . Surface chemistry and pore structure of electrodes of the four carbon blacks were systematically characterized, and their effects on H 2 O 2 adsorption, electrochemical generation and degradation were investigated. RESULTS Among the four carbon blacks, AB has the highest content of C–O–C/COOH and CO, which are active groups catalyzing the two-electron oxygen reduction reaction to generate H 2 O 2 . AB has the lowest level of defects and highest degree of graphitization, and AB-modified graphite felt electrode (AB-Ele) has the largest average pore diameter, smallest specific surface area and smaller charge transfer resistance. H 2 O 2 production using AB-Ele is the largest and reaches 567.7 mg L −1 at 180 min under a current density of 5 mA cm −2 , and only decreases by 17.6% after 10 repeated uses. CONCLUSION Overall, rich oxygen-containing functional groups such as C–O–C, COOH and CO, high degree of graphitization, suitable surface area and porosity as well as weak H 2 O 2 adsorption performance are beneficial for the two-electron oxygen reduction reaction to generate H 2 O 2 . AB-modified graphite felt electrode exhibits good catalytic activity and reusability in H 2 O 2 electrosynthesis, demonstrating promising application prospects. © 2024 Society of Chemical Industry (SCI).
研究领域:
化学工程
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2021
·
IF 7.664
Senmao Yu,Zhenghai Tang,Shifeng Fang,Siwu Wu,Baochun Guo
Carbon black (CB) is a principal filler in rubber industry due to its excellent reinforcing effect and low-cost. It is of significant importance but challenging to modify the inert CB for addressing the dilemma of increased energy loss raised by the addition of CB. In this work, we reported the functionalization of CB through redox polymerization of rhodanine on its surface, and utilized the modified CB as a novel reinforcement for natural rubber (NR). Polyrhodanine coated on CB can covalently couple with NR chains by capturing macroradicals and serve as an intelligent interfacial bridge between CB and NR, which greatly improves CB dispersion and strengthens interfacial adhesion in the composites. As a consequence, the energy loss of the resultant composites is remarkably decreased, showing great advantages in reducing the rolling resistance and heat build-up for tire applications.
研究领域:
材料科学
·
高分子化学
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产品关联
DOI
高影响因子
Particuology
·
2025
·
IF 4.3
Zhilong Wang,Jianhang Lu,Jiatan Zhang,Feixiang Li,Xinhao Yu,Bo Sun,Yahui Cui,Tong Zhao
This paper clarified the network structure of the lithium-ion battery (LIB) slurry under effects of composite conductive agent amount and carbon black (CB) to graphene (Gr) mass ratio ( m’ CB : m’ Gr ). Four different amounts of composite conductive agent which are φ com1 = 0.25%, φ com2 = 0.5%, φ com3 = 0.75% and φ com4 = 1% are selected as the conductive materials for LIB slurries. Meanwhile, to discriminate the individual impacts of CB and Gr, two distinct mass ratios of CB to Gr, namely, m’ CB : m’ Gr = 1:2 and m’ CB : m’ Gr = 2:1, are additionally chosen. Moreover, the influence of single conductive additive agent CB or Gr with the same amount as composite conductive agent on the network structure of the LIB slurry is also investigated. Furthermore, Electrochemical Impedance Spectroscopy (EIS), Scanning Electron Microscopy (SEM) and Raman experiments are performed to obtain the electrochemical, morphological and Raman characterizations of LIB slurry, respectively. After analyzing the experimental results, the main conclusion shows that the synergistic interaction between CB and Gr ensures a high-level conductive efficiency because of minimizing the amount of the conductive agent and increasing the amount of LiCoO 2 particles to the utmost degree, which has the potential to substantially elevating the energy density of LIB.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2016
·
IF 2.632
Jiamei Chen,Liang Fang,Zhongzi Xu,Chunhua Lu
Light responsive self-healing capability offers polymer coatings the opportunity to heal surface scratches in a localized, non-contact, and remote manner. A near-infrared (NIR) light (808 nm) responsive self-healing coating is reported here, using epoxy and carbon black as coating matrix and photothermal filler, respectively. The chemical structure and property of the prepared epoxy coatings are tailored by changing the ratio of m -xylylenediamine as diamine and 3,5-bis(trifluoromethyl) benzylamine as monoamine. Carbon black is subsequently incorporated into the coating with the optimized thermally induced self-healing ability to achieve good photothermal effect, correspondingly transferring the thermally triggered healing to the light responsive repairing. The results indicate that with the gradual replacement of diamine with monoamine, the epoxy network having lower crosslink density and glass transition temperature ( T g ) is achieved, offering sufficient chain mobility for thermally induced healing. A small amount of CB (up to 1.0 phr) provides the coating good photothermal effect under NIR light. Upon exposed to NIR light of 1.2 W cm −2 for only 3 min, efficient healing is achieved. The recovery of the filler distribution on the healed region and the restoration of the anti-corrosion property are finally demonstrated. The combination of photothermal filler into tailored epoxy network via changing the ratio of diamine and monoamine provides a convenient approach to heal scratches of coatings via NIR light.
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
ADVANCED POWDER TECHNOLOGY
·
2020
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IF 4.217
Ting Chen,Xiaojun Zhang,Weihui Jiang,Zhixiang Xie,Yanqiao Xu,Huidong Tang,Wan Jiang
A core-shell structure zirconium silicate encapsulated carbon (C@ZrSiO 4 ) pigment was synthesized by a molten-salt assisted method. The experimental results indicated that the Na 2 WO 4 molten-salt associated with the synthesis of ZrSiO 4 at low temperature and controlled the morphology of the encapsulation pigment simultaneously. The encapsulated pigment prepared with the assistance of Na 2 WO 4 molten-salt showed regular microcubes about 3.0 μm, while the pigment in the absence of molten-salt have serious aggregation with a particle size of 12.78 μm. Moreover, the maximum addition amount of carbon black was increased significantly from 15 wt% to 40 wt% after adding molten-salt, while the chromatic value L * of C@ZrSiO 4 pigment decreased from 68.21 to 33.08 accordingly. The pigment exhibited excellent thermal stability at high temperature, making it a promising candidate for ceramic decoration.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2022
·
IF 6.267
Cuiling Wang,Fang Li,Jinna Li,Liusu Cui,Jiateng Zhong,Hongyuan Zhao,Sridhar Komarneni
A highly sensitive electrochemical sensor was successfully fabricated for the determination of niclosamide (NA) based on the chitosan (CTS) functionalized carbon nanotube@carbon black scaffolds (CNT@CBS) nanocomposite modified glassy carbon electrode (GCE). CNT@CBS with interconnected long- and short-range conductive network provided more efficient charge transfer channels and high electrochemical active surface area;CTS not only promoted the uniform dispersion of CNT@CBS but also possessed good biocompatibility, high adsorption capability, and excellent film-forming property. Benefitting from the synergistic effect of CNT@CBS and CTS, the CNT@CBS@CTS/GCE sensor showed a low limit of detection of 4.3 nM (Linear NA concentration: 0.01–10 μM). When applied for the NA detection in real samples, the fabricated sensor presented good practicability with satisfactory RSD values of 2.62%–4.35% and recoveries of 95.6–100.5%.
研究领域:
分析化学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2022
·Vol. 300
·期 9
·1017-1025
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IF 2.434
Li Jiawei,Shao Xiaoming,Zhang Bo,Wang Zongzheng,Ye Xin,Zhang Liqun,Wang Wencai
We report a simple strategy for improving the hydrophilicity of carbon black. Tannic acid (TA) and diethlyenetriamine (DETA) were employed to co-deposit on the surface of CB via immersing the CB in an alkaline TA and DETA solution with gently stirring at room temperature. The surface chemistry characteristics and hydrophilic of CB are investigated. The results suggest that a poly (tannic acid/diethlyenetriamine) (TA/DETA) layer with abundant hydrophilic groups such as hydroxyl and amino groups was successfully deposited on the surface of CB. Results of static contact angle indicate that the water contact angle is as low as 32°, which presents the excellent hydrophilicity of the modified CB. Graphical abstract The deposition process of TA and DETA on the surface of carbon black.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2022
·
IF 8.035
K. Radhakrishnan,P. Senthil Kumar,Gayathri Rangasamy,L. Praveen Perumal,S. Sanaulla,S. Nilavendhan,V. Manivasagan,K. Saranya
Plastic production has increased globally, and many of these plastic items are no longer in use. The plastic wastes end up as garbage, disposed of in landfills, or scattered, posing major health and environmental risks. In terms of sustainability, converting plastic trash into fuels or any other better option, individual monomers, is a far more environmentally friendly waste management option than landfill dumping. Nearly 1.3 billion metric tonnes of plastic are produced annually as businesses strive to meet the demands of consumers. Plastic is made through a process called polymerization, in which hydrocarbons are rearranged into new molecules. These hydrocarbons often have a high molecular mass, and they may also contain other chemicals to boost their performance. Plastic is a useful material because, among other things, it is durable, lasts a long time, is inexpensive, and has many other benefits. Because plastic can take decades to degrade if left alone, effective waste plastic disposal should be a top priority for every-one. Yet, growing industrialization and urbanization have contributed to a discernible rise in fuel demand. Finding renewable energy sources to replace fossil fuels is now a critical global priority. Plastics-to-gasoline conversion provides a means to solve both of these problems. By applying intense heat (more than 370 °C) and an oxygen-free environment, pyrolysis thermochemically decomposes organic materials. The byproducts of pyrolysis are carbon black, hydrocarbons, and pyrolysis oil. This review focuses on pyrolysis as it is the most popular and efficient method for turning polymers into fuels in comparison with other methods. This review comprises the knowledge of different types of plastics and their properties. The major discussion was focused on pyrolysis methods for recycling plastics. To have better knowledge competitive recycling method were discussed. The optimization parameter for recycling process, by-products of plastics, advantages and disadvantages of pyrolysis process are discussed to identify the drawbacks and research gaps. The pyrolysis method are potential for addressing waste plastic management and highlights the need for a reliable alternative fuel source.
研究领域:
环境科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2023
·Vol. 13
·期 12
·7848-7856
·
IF 3.9
Hao Yang,Yinmeng Ding,Ya Ding,Jing Liu
Polycyclic aromatic hydrocarbons (PAHs) are a class of ubiquitous and persistent organic compounds that are significantly teratogenic, carcinogenic and mutagenic. Rubber stoppers commonly used in sterile formulation packaging materials often contain carbon black as the additive to enhance mechanical strength. However, PAHs may be formed during the production of carbon black, which could cause the drug formulations to be contaminated when contacting with the rubber stopper, and then enter the patient's body. The determination of PAHs in drug formulations is challenging, due to their trace amounts and matrix interference. Therefore, sample pretreatment is necessary and important. In this work, a novel technique, named in-vial solid-phase extraction (IVSPE), was developed for the selective extraction and enrichment of 16 PAHs in pharmaceuticals. The coated sample vial was directly used as the container for the whole process of sample pretreatment. As the solid-phase adsorbent, the coating was prepared by successively modifying the inner surface of a sample vial with polydopamine film and octadecylamine. PAHs could be selectively extracted through π–π stacking interaction and hydrophobic interaction, and then desorbed and enriched by a small amount of organic solvent. After systematic optimization of the coating preparation and the extraction process, the limits of detection and quantification of 16 PAHs were in the range of 0.002–0.60 ng mL−1 and 0.007–2.00 ng mL−1, respectively. Good linearities and precision of six repeated injections were obtained. The recoveries at three spiked concentration levels in normal saline were in the range of 62.72–106.90% with the relative standard deviation between 0.83% and 6.78%. Finally, PAHs in normal saline and powders for injection were extracted by established IVSPE, followed by separation and detection with high-performance liquid chromatography with a fluorescence detector and diode array detector (HPLC-FLD/DAD). It is worth noting that the preparation conditions of the adsorbent in the IVSPE method are mild, simple and green. Moreover, IVSPE has the advantages of having few work steps and avoiding the risk of contamination, because no special instrumentation or sample transfer is required. IVSPE could also be used for the pretreatment of multiple samples at the same time, which is beneficial to practical applications.
研究领域:
分析化学
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药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2025
·
IF 2.3
Zuo Hongmei,Du Yuting,Zhou Zihao,Xu Yaning,Shi Jie,Zou Lihua,Xie Yanxia
In order to develop elastomer composite with high thermal conductivity based on polyester (PET) fabric and further prolong the service life and improve service safety, modified PET fabric was prepared. Initially, different content of carbon black was added into butadiene latex and phenolic resin to prepare complex emulsion. Then, the emulsion was coated on the fabric by dipping and rolling technique. The results showed that carbon black possessed excellent stability and could be dispersed in butadiene latex uniformly. Meanwhile, the viscosity of the complex emulsion was low. The absolute value of zeta potential exhibited that carbon black could promote the reaction of complex emulsion. In addition, the tensile properties and thermal conductivity were both improved after adding carbon black. When adding 5.3 wt% carbon black, the tensile strength of carbon black modified emulsion film could reach 6.57 MPa and the thermal conductivity could reach 3.16W/(m∙K). As a result, the thermal conductivity of 5.3 wt% carbon black modified emulsion-coated PET composite reached 3.43 W/(m∙K), which was 38.31% higher than that of pure emulsion modified PET composite. The results showed that carbon black was an excellent and low-cost nano-filler, which could be used to improve the thermal conductivity of PET-related elastomer composite.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2024
·
IF 4.6
Jiawei Yang,Pengcheng Xu,Haoming Li,Haichun Gao,Shaoan Cheng,Chaofeng Shen
3D printing of a living bioanode holds the potential for the rapid and efficient production of bioelectrochemistry systems. However, the ink (such as sodium alginate, SA) that formed the matrix of the 3D-printed bioanode may hinder extracellular electron transfer (EET) between the microorganism and conductive materials. Here, we proposed a biomimetic design of a 3D-printed Shewanella bioanode, wherein riboflavin (RF) was modified on carbon black (CB) to serve as a redox substance for microbial EET. By introducing the medicated EET pathways, the 3D-printed bioanode obtained a maximum power density of 252 ± 12 mW/m2, which was 1.7 and 60.5 times higher than those of SA-CB (92 ± 10 mW/m2) and a bare carbon cloth anode (3.8 ± 0.4 mW/m2). Adding RF reduced the charge-transfer resistance of a 3D-printed bioanode by 75% (189.5 ± 18.7 vs 47.3 ± 7.8 Ω), indicating a significant acceleration in the EET efficiency within the bioanode. This work provided a fundamental and instrumental concept for constructing a 3D-printed bioanode.
研究领域:
生物电化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）