Article
Chemistry, Multidisciplinary
Yundong Pu, Sen Yang, Meng Qi, Kuang Sheng, Junfeng Bi, Fukun Fan, Xiaoya Yuan
Summary: In this study, the effect of hybrid GO/HO-G on cement composites was investigated. The results showed that the combination of GO and HO-G led to a better improvement in the strength and durability of mortar compared to using GO or HO-G alone.
Article
Materials Science, Multidisciplinary
C. M. Y. Yang, X. Li, C. J. Li, Y. Z. Peng, Y. Xing, Z. X. Feng, J. Tan, J. M. Tao, Z. L. Li, Y. R. Wang, B. H. Yu, J. H. Yi
Summary: In this study, carbon nanotubes (CNTs) were grown on the surface of Ti particles and then used to prepare CNTs@Ti/Al composites. The dispersion and structural integrity of CNTs were improved by the carrying effect of micron-sized Ti particles. The formation of TiC, Al4C3, and TiAl3 at the CNT/Al interface enhanced the bearing capacity of CNTs, improved the wettability of the interface, and increased the strain-hardening ability of the Al matrix. The designed materials compensated for the deficiencies of CNT/Al composites and exhibited a synergistic strengthening effect, leading to improved mechanical properties.
MATERIALS & DESIGN
(2023)
Article
Construction & Building Technology
Gyeongryul Kim, Hyeongwon Suh, Seongmin Cho, Sumin Im, Erfan Zal Nezhad, Seungwook Seok, Changsik Choi, Sungchul Bae
Summary: This study investigates the synergistic strengthening mechanism of graphene oxide, functionalized carbon nanotubes, and nano-silica triple hybrid-reinforced Portland cement composite. The study found that an optimal amount of graphene oxide significantly improves the dispersion quality and positively influences the hydration degree and mechanical performance of the cement paste.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Abdullah Alhendal, Jessy Shiju, Mohamed Rashad, Fakhreia Al-Sagheer, Zahoor Ahmad
Summary: The synthesis and characterization of aramid composites reinforced with graphene platelets are reported. The effect of sol-gel binders on the properties of the resulting hybrids, as well as the chemical bonding and possible secondary bond interactions between the matrix and graphene platelets, are discussed.
Article
Polymer Science
Tatiana P. Dyachkova, Yulian A. Khan, Elena A. Burakova, Evgeny V. Galunin, Gulnara N. Shigabaeva, Dmitry N. Stolbov, Georgy A. Titov, Nikolay A. Chapaksov, Alexey G. Tkachev
Summary: This paper discusses the development of fillers made from mixtures of carbon nanotubes and graphene materials to modify epoxy resin. The effects of different types and contents of graphene on the particle sizes of the dispersed phase in aqueous suspensions and the resin were analyzed. The optimal dispersions were achieved at a mass ratio of 1:4 between carbon nanotubes and graphene oxide, with particle sizes of 75-100 nm. The composites showed increased tensile strength and modulus when containing 0.15-0.20 wt.% of carbon nanotubes/graphene oxide at a ratio of 1:1.
Article
Materials Science, Multidisciplinary
S. Abazari, A. Shamsipur, H. R. Bakhsheshi-Rad
Summary: In this research, a network structure was developed from reduced graphene oxide (rGO) and carbon nanotubes (CNTs) to strengthen a magnesium-based nanocomposite implant. The combination of rGO and CNTs effectively enhanced the compressive strength and strain to fracture of the composite. Mechanisms such as crack tip shielding, crack bridging, and crack deflection were responsible for the mechanical enhancement. Additionally, the composite exhibited good corrosion resistance, bioactivity, biocompatibility, and antibacterial activity against Escherichia coli and Staphylococcus aureus.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Yanjie Yang, Mabao Liu, Shiqi Zhou, Weijia Ren, Qihang Zhou, Wei Zhang
Summary: The study shows that the interlocking structure improves deformation compatibility and load-sharing between graphene network and metal matrix in composites. Straightening of graphene network enhances mechanical interlocking and stress release. Imperfect graphene network reinforced composites, due to defects, exhibit improved ductility.
Article
Materials Science, Ceramics
Alei Dang, Zeqi Yuan, Xin Liu, Shuze Ma, Yali Yang, Amir Zada, Yali Gao, Yuhui Liu, Tiehu Li, Yanying Han
Summary: The preparation of high performance, low cost and recyclable adsorbents is crucial for dealing with water pollution. Carbon foam (CF) is a promising adsorbent, but its uneven size distribution and lack of adsorption sites hinder its application. In this study, CF/CNTs/GO composites were successfully prepared, and the addition of CNTs and GO nanosheets significantly improved the adsorption performance. This work provides a low-cost fabrication technique for high-performance CF/CNTs/GO adsorbents and contributes to the treatment of contaminated water.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Manufacturing
Doheon Koo, Jaebum Sung, Heongwon Suh, Sungchul Bae, Hongyun So
Summary: This study provides a comprehensive analysis of conductive and hygroscopic nanocomposites using graphene oxide (GO), carbon nanotubes (CNT), and nano-silica. The nanocomposite suspensions were dispersed via ultrasonication in water for vacuum filtration. The dispersed phase of each nanomaterial was evaluated through various measurements, and the morphology and performance of the fabricated membrane were examined.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Physical
Haizhou Liu, Ying Xu, Xiaodong Zhao, Dong Han, Fei Zhao, Qiaowen Yang
Summary: This article introduces a novel lightweight foam material (CGF) composed of carbon nanotubes (CNTs) and reduced graphene oxide (rGO) for electromagnetic interference (EMI) shielding. The addition of 20 wt% CNTs expands the conductive network and increases the conductivity of the CGF material by 274.4%. The CGF material exhibits excellent EMI shielding effectiveness (SE) of 71.4 dB at a low mass per unit area of 12.5 mg·cm(-2). The CGF material also shows high comprehensive performance in terms of SE divided by density (SED) and mass per unit area (SEMA) values.
Article
Engineering, Mechanical
Ning Li, Hong Yan, Qingjie Wu, Zeyu Cao
Summary: A novel method to increase interfacial bonding strength by coating titanium oxide (TiO2) on the surface of carbon nanotubes (CNTs) was developed, leading to successful fabrication of TiO2@CNTs-reinforced AZ91 composite materials. The coating process improved CNTs distribution in the Mg alloy, resulting in refined grains and improved mechanical properties. Good interfacial bonding was achieved, allowing effective tensile loading transfer at the interface.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2021)
Article
Materials Science, Composites
Hao Sun, Tong Ji, Hongjie Bi, Min Xu, Liping Cai, Maurizio Manzo
Summary: This study designed and fabricated a CS/CNT/NR composite with high thermal conductivity by incorporating 1D carbon nanotubes into 3D wood-derived carbon scaffold, demonstrating a synergistic effect between CS and CNT for forming a heat percolation network. The unique 3D interconnected structure of the composite ensures high-speed heat transport and promotes the use of renewable materials for efficient heat dissipation in thermal management materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jiaxin Song, Yi He, Shanling Wang, Wenkang Li, Yixin Dai, Wenxue Li, Jian Guo, Hong Zhang, Filippo S. Boi
Summary: This study reinvestigates the carbon-sulfur doping mechanism, using buckypapers and graphene oxide films as host materials, demonstrating the existence of carbon-sulfur bonds and investigating the electrical and magnetic properties after sulfur doping.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Composites
Qichen Chen, Wenfu Wei, Song Xiao, Zefeng Yang, Guizao Huang, Hao Li, Haojie Yin, Jiahui Lin, Qi Kang, Pengli Li, Hong Wang, Chuanjun Tu, Guoqiang Gao, Xingyi Huang, Guangning Wu
Summary: The interfacial interaction between the carbonized matrix and binder is crucial for the performance of carbon-matrix composites. Introducing reduced graphene oxide (rGO) into the composites improves the interface property and enhances the performance. In this study, rGO was in-situ converted from graphene oxide (GO) during the sintering process at the interface between the matrix and the carbonized binder. The results showed that the compressive strength and flexural strength of the composites increased by 112.1% and 71.2%, respectively, when 0.2 wt% of GO was doped. This enhancement is attributed to the ideal interface bond formed between rGO and the carbonized matrix and binder, which promotes crack propagation path deflection. Molecular dynamics simulations also revealed an automatic protective reinforcement mechanism of the rGO-enhanced composites. This research proposes a low-cost yet effective scheme for improving composite interfaces and provides a theoretical foundation for the development of high-strength carbon-matrix composites.
COMPOSITES COMMUNICATIONS
(2022)
Review
Biochemistry & Molecular Biology
Raja Ram Pandey, Charles C. Chusuei
Summary: Carbon nanomaterials are extensively used in electrochemical sensing composites due to their unique properties, however, their long-term ecological fate remains unknown. Graphene and carbon dots are more biodegradable compared to carbon nanotubes, and design elements such as Coulombic attraction and specific atoms as tethering points are crucial for electrocatalytic performance.
