Article
Materials Science, Multidisciplinary
Wang Xudong, Zhou Hui, Sun Peng, Zhang Aihua, Zhu Liang
Summary: A new method of producing graphene-coated aluminum composite powder was introduced using graphene aerosol prepared by electrical explosion. This method addresses the issues of uneven dispersion and weak interfacial bonding of graphene in metal composite powder while preserving its intrinsic properties. The graphene aerosol, consisting of flake graphene and gel graphene with an average of 5.8 layers, was uniformly dispersed in a chamber. By mixing the graphene aerosols with spherical aluminum particles under air flow, graphene-coated aluminum composite powders with different graphene contents were obtained. When the graphene aerosol content was 1.5wt%, the graphene was evenly dispersed in the aluminum composite powder, with graphene sheets adhering to the metal particles. Finally, the mechanism of in-situ formation of graphene-coated metal composite powder by dispersing graphene aerosols was analyzed.
RARE METAL MATERIALS AND ENGINEERING
(2023)
Article
Materials Science, Ceramics
Xudong Wang, Yupeng Wei, Hui Zhou, Qiuhua Liu, Liang Zhu
Summary: This study proposed a method for preparing graphene from graphite powder in a tube by electrical explosions, with the diameter of the constraint tube and the collision degree between graphite powder particles identified as key factors influencing the formation of graphene. Additionally, a self-designed device for electrical explosions was developed in the research.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Wonki Lee, Jungtae Nam, Jaejun Park, Geonhee Lee, Seok hoon Ahn, Keun Soo Kim, Jeong-O Lee, Chel-Jong Choi, Jun Yeon Hwang
Summary: This study presents an efficient method for dispersing and reducing the defects of graphene oxide (GO) through a pulsed wire discharge (PWD) process in an organic solvent. The results show that copper wire and carbon fiber can effectively control the electric explosion process, resulting in GO with low oxygen content and excellent electrical conductivity.
Article
Materials Science, Ceramics
Chen Li, Ruoyu Han, Jinyue Geng, Ming Gao, Qifan Li
Summary: Electrical explosion is a powerful method for synthesizing graphene-related materials. The morphology of the products is influenced by the confined environment. In water and tube explosions, the graphite products are compacted to form stacked graphite sheets. In contrast, typical spherical nanoparticles are synthesized in free air explosions.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Rashad Al-Gaashani, Yahya Zakaria, One-Sun Lee, Janarthanan Ponraj, Viktor Kochkodan, Muataz A. Atieh
Summary: This study investigated the effect of preparation temperature on the synthesis of high quality graphene oxide (GO) by a chemical oxidation method. It was found that the purity of GO increased with higher preparation temperatures. Based on atomistic models developed according to the stoichiometric ratio of the functional groups found by XPS, it was shown that GO prepared at higher temperatures had more holes in the sheets, which was supported by experimental images.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Chen Li, Ruoyu Han, Jie Bai, Yuchen Cao, Wei Yuan, Jiawei Wu, Pengfei Li, Xi Chen
Summary: Metal-graphene nanocomposites can be synthesized through electrical explosion, which achieves ultrafast heating/quenching rates and intense plasma-material interactions. Two assembly routes have been discovered: one involving metallic nanoparticles decorated on graphite nanosheets, and the other involving nanometal core coated by graphene shell and onion-like carbon. The explosion-induced shockwave and reflection exfoliate graphite powders and facilitate turbulent-mixing, allowing atomized metal to quench on graphite nanosheets. Increasing explosion energy can lead to core@shell structures.
Article
Engineering, Electrical & Electronic
Wanqiu Dong, Lin He, Chuangqian Chen, Jie Kang, Hongmei Niu, Jiebing Zhang, Jin Li, Kanshe Li
Summary: In this paper, graphene/polymer nanocomposites were prepared using ball milling, achieving the exfoliation and graphenization of graphite. The effects of technological parameters on the composite properties were investigated.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Alexander Pervikov, Nikita Toropkov, Sergey Kazantsev, Olga Bakina, Elena Glazkova, Marat Lerner
Summary: Electrical explosion of aluminum wires can produce bimodal nano/micro powders with adjustable particle size distribution, which shows great potential for high flowability feedstocks in metal injection molding and material extrusion additive manufacturing.
Article
Chemistry, Physical
Abimannan Sethurajaperumal, Vanmathi Ravichandran, Ivan Merenkov, Kostya (Ken) Ostrikov, Eswaraiah Varrla
Summary: Liquid-phase exfoliation of 3D solid precursors into ultra-thin sheets of layered materials has gained global interest due to its simplicity and industrial applicability. The characteristics of exfoliated graphene depend on the processing technique and properties of the starting precursor materials. This study explored the role of initial 3D precursors in creating 2D materials by exfoliating graphite flakes of different sizes, and assessed the morphology and defects of the resulting nanosheets.
Article
Chemistry, Multidisciplinary
Syed Shaheen Shah, Hsiharng Yang, Muhammad Ashraf, Mohammed Ameen Ahmed Qasem, Abbas Saeed Hakeem, Md Abdul Aziz
Summary: This study demonstrates a facile and efficient green synthesis route for producing highly stable and electrochemically active three-dimensional interconnected graphene frameworks (3DIGF) from jute sticks. The prepared 3DIGF shows a highly stable nature in thermal and chemical environments and demonstrates a highly dynamic nature for the electrooxidation of sulfide.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Jun Su, Caihong Li
Summary: The study shows that adding graphene platelets can significantly increase the dielectric constant and decrease the complex viscosity of EPDM-based elastomers, with 0.5% graphene increasing the relative ratio of dielectric constant to Young's modulus by 180%.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Multidisciplinary Sciences
Kesheng Cao, Zhengshan Tian, Xunyou Zhang, Yabo Wang, Qiuxiang Zhu
Summary: Graphite powder is oxidized and then exfoliated to obtain graphene oxide (GO) by a green, safe and fast method using dilute sulfuric acid solution and hydrogen peroxide as oxidants. The obtained GO has better adsorption capacity and can remove methylene blue and Cd2+ from water effectively.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Baoyan Liang, Xiaochen Feng, Wangxi Zhang, Jizhou Zhang, Li Yang
Summary: MoAlB ceramics containing a small amount of Al2O3 and MoB impurities were successfully synthesized by thermal explosion technique. The effect of Al content on the synthesis of MoAlB materials was investigated, and it was found that excess Al could compensate for the volatilization of Al and promote the formation of gaseous AlO, thereby inhibiting the synthesis of solid-phase Al2O3 and promoting the synthesis of MoAlB.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Qiang Zhang, Yuying Yang, Huiqing Fan, Liu Feng, Guangwu Wen, Lu-Chang Qin
Summary: Graphene oxide (GO) prepared with different concentrations of sulfuric acid exhibits variations in structural defects, interlayer spacing, and carbon-to-oxygen ratio, with GO synthesized with 93% H2SO4 showing distinct differences compared to GO synthesized with 99% H2SO4.
Article
Engineering, Manufacturing
Wei Xiao, Bei Li, Jun Yan, Ling Wang, Xuewu Huang, Jiefeng Gao
Summary: Three dimensional graphene-based hybrid materials have attracted much interest and are being applied in various fields. These materials provide a framework for other functional materials and facilitate electron and mass transport during reactions. The synthesis methods, morphology, and applications of these hybrids are reviewed, with challenges and prospects discussed for future development.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.