Article
Materials Science, Ceramics
Camila C. Lopes, Wagner A. Pinheiro, Daniel Navarro da Rocha, Jose G. Neves, Americo Bortolazzo Correr, Jose R. M. Ferreira, Rafael M. Barbosa, Jefferson R. F. Soares, Jheison L. Santos, Marcelo H. Prado da Silva
Summary: In this study, hydroxyapatite-graphene oxide (HA-GO) nanocomposites were produced and the influences of different concentrations of GO on their morphological and physicochemical properties were observed. The results indicated that HA-GO nanocomposites exhibited good bioactivity properties and showed a high level of cell viability when the concentration of GO was increased. These findings suggest that HA-GO nanocomposites have potential as bioactive bone grafts and promising biomaterials for bone tissue regeneration, especially at higher concentrations of GO.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
R. Askarnia, S. Roueini Fardi, M. Sobhani, H. Staji
Summary: Ternary HA/chitosan/graphene oxide (GO) coating was successfully deposited on AZ91D magnesium alloy as bone implants. The addition of GO resulted in increased hardness, improved HA growth, decreased corrosion rate, and enhanced antibacterial properties of the composite coatings.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Chenning Zhang, Tetsuo Uchikoshi, Lihong Liu, Kaori Iwanami-Kadowaki, Masayoshi Uezono, Keiji Moriyama, Masanori Kikuchi
Summary: Antibacterial-functionalized Ag-loaded hydroxyapatite coatings were successfully fabricated by the EPD process, showing potential application in implant surgery for preventing bacterial infection. The coatings have strong adhesion due to the use of Mg2+ as an inorganic binder. This surface antibacterial function improves surgical success.
Article
Electrochemistry
Zishan Chen, Wei Wang, Qimin Liang, Weiming Lin
Summary: In this study, carbonated hydroxyapatite-graphene oxide composite coatings were successfully prepared on AZ91 magnesium alloy through electrophoretic deposition. It was found that the microstructures, porosity, carbonated HA content, and the formation of GO-Mg complexes significantly improved the corrosion resistance of the alloy. The HA-GO-0.33 composite coating exhibited superior corrosion resistance in a 0.9 wt. % NaCl solution, providing a theoretical basis for the application of magnesium alloy in human implantation.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
N. Aslan, B. Aksakal, B. Dikici, Z. A. Sinirlioglu
Summary: The effect of HA-based coatings reinforced with rGO on porous-Ti6Al4V alloys in terms of electrochemical corrosion and cell viability was investigated. The results showed that rGO reinforcements reduced the corrosion rate of the scaffolds, and the corrosion rate increased as the porosity content of the scaffolds increased. 0.5 and 1.0wt% rGO-HA coating groups had better cell viability.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jing Tan, Lin Li, Baoyuan Li, Xin Tian, Pengyuan Song, Xueqi Wang
Summary: This study investigated the antibacterial activity, biocompatibility, and regulation of macrophage polarization of graphene oxide/gelatin-modified titanium. The results showed that the modified titanium had good antibacterial effect, biocompatibility, and could inhibit macrophage adhesion and spread in the early stage and decrease inflammation in the late stage.
Article
Materials Science, Ceramics
Melike Nur Ozder, Fatih Ciftci, Ozge Rencuzogullari, Elif Damla Arisan, Cem Bulent Ustundag
Summary: This study investigates the properties of in situ synthesis of graphene oxide-hydroxyapatite (GO/HA) nanocomposite materials with different doping ratios for bone tissue support applications. The results show that scaffolds containing 0.5% and 1% GO (w/w) exhibit excellent cell proliferation and adhesion, making them promising materials for bone support applications.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Applied
Geetisubhra Jena, John Philip
Summary: Graphene-based nanocomposite coatings have gained significant interest for their anti-corrosion applications in various industries. The use of graphene's stability and excellent barrier properties contribute to corrosion protection, while the dispersion of modified graphene oxide provides torturous paths for corrosive mediums. The development of graphene-based coatings on different substrates and the applications in industries such as automotive and aerospace are discussed in this comprehensive review.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Ceramics
Jingpei Zhu, Chuanwei Fan, Conghui Ning, Wei Wang
Summary: HA-rGO-ZnO ternary composite coatings were successfully prepared on ZK60 magnesium alloy by cathodic electrophoretic deposition method. The addition of ZnO nanoparticles reduced the crystallinity of hydroxyapatite and improved the corrosion resistance and bioactivity of the coatings.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Mahboobeh Mahmoodi, Mohammad Hossein Hydari, Leila Mahmoodi, Lida Gazanfari, Marjan Mirhaj
Summary: In this study, graphene oxide/hydroxyapatite composite coating on tantalum substrate was achieved by electrophoretic deposition, enhancing hardness and corrosion resistance while reducing friction coefficient. The high surface roughness and wettability of the coating promoted the proliferation of MG-63 cells on the surface, suggesting potential for dental and orthopedic implant applications.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Miheng Dong, Harold A. Coleman, Mary A. Tonta, Zhiyuan Xiong, Dan Li, Sebastian Thomas, Minsu Liu, James B. Fallon, Helena C. Parkington, John S. Forsythe
Summary: In this study, the authors demonstrated that graphene oxide coating on metal-based neural electrodes could significantly enhance charge storage capacity and reduce impedance without adverse effects on neuronal development. Acute and chronic recordings showed improved signal-to-noise ratio and signal amplitude with the coating.
Article
Chemistry, Multidisciplinary
Garima Mittal, Kyong Y. Rhee
Summary: The study successfully deposited graphene on basalt fabric using an eco-friendly electrophoretic deposition method. Various analytical techniques confirmed the presence of graphene on the fabric, and the graphene coating was found to delay the crystallization of BF and improve its protective properties.
NANOTECHNOLOGY REVIEWS
(2021)
Article
Pharmacology & Pharmacy
Reem Al-Wafi, S. F. Mansour, M. S. AlHammad, M. K. Ahmed
Summary: By encapsulating HAP, ZrO2, and GO nanomaterials into PLA nanofibrous scaffolds, significant improvements in mechanical properties and antibacterial activity were achieved, along with enhanced cell growth. The new scaffold structure with networked nanofibers demonstrated strong antibacterial capabilities against various microorganisms.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Materials Science, Ceramics
Weiwei Han, Li Liu, Benrui Yu, Qingxia Zhu
Summary: Graphene oxide (GO)/hydroxyapatite (HA) composite coatings were successfully prepared on titanium substrates using electrophoretic deposition technology. The coating's microstructure, phase composition, adhesion strength, hydrophilicity, corrosion resistance, bioactivity, antibacterial activity, and biocompatibility were evaluated. The adhesive strength of the coating increased by 76% when the GO content increased from 0 wt% to 12 wt%, and the corrosion rate reached its minimum at (1.493 x 10-3mm/a) with 8 wt% GO. Biomineralization experiments demonstrated the excellent bioactivity of the GO/HA composite coatings. The water contact angle of the composite coatings increased from 20.6 degrees (0 wt% GO) to 38.1 degrees (12 wt% GO). The antibacterial rate of the coating with 5 wt% GO was 96.7%, but decreased to 25% after thermal treatment. In-vitro L929 cell culture experiments confirmed the biocompatibility of the composite coatings with 5 wt% GO.
CERAMICS INTERNATIONAL
(2023)
Article
Polymer Science
Valentina Grumezescu, Alexandru Mihai Grumezescu, Anton Ficai, Irina Negut, Bogdan Stefan Vasile, Bianca Galateanu, Ariana Hudita
Summary: This article presents the preparation and characterization of composite coatings based on hydroxyapatite (HAp), chitosan (CS), and FGF2, and investigates their effects on attachment, growth, and differentiation of cells through in vitro experiments. The results suggest that these coatings are suitable for bone tissue engineering applications.
Article
Nanoscience & Nanotechnology
Kern Hast, M. Rhia L. Stone, Zhaojun Jia, Melih Baci, Tushar Aggarwal, Enver Cagri Izgu
Summary: The functionalization of material surfaces with bioactive molecules is important in life sciences, biotechnology, and medicine. A novel surface functionalization method is reported which proceeds chemoselectively without a free transition metal catalyst. This method allows for the grafting of diverse bioactive molecules onto material surfaces under physiological conditions, enabling applications in enzyme grafting, cyclic peptide grafting, and antibiotic grafting. The functionalized surfaces maintained biocatalytic activities, showed improved cell morphology and organization, and inhibited biofilm formation and bacterial growth.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
M. H. Qi, J. L. Xu, T. Lai, J. Huang, Y. C. Ma, J. M. Luo, Y. . F. Zheng
Summary: This paper investigates the microstructure, mechanical properties, corrosion behaviors, and in vitro biological properties of novel binary Ti-Zn alloys prepared via hot-press sintering. The Ti-Zn alloys exhibit high strength, low elastic modulus, excellent corrosion resistance, and intrinsic bioactivity. These alloys show promising potential for biomedical applications based on their favorable mechanical performance, corrosion resistance, and cytocompatibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Julietta V. Rau, Angela De Bonis, Roberto Teghil, Mariangela Curcio, Inna V. Fadeeva, Katia Barbaro, Massimo Di Menno Di Bucchianico, Marco Fosca, Yufeng Zheng
Summary: In this study, a biodegradable alloy of zinc-lithium (Zn-Li) was coated with a resorbable tricalcium phosphate (Mn,Sr-TCP) doped with manganese and strontium using the Pulsed Laser Deposition method. The coating was characterized using various techniques, and microbiology experiments were performed to test the growth inhibition of bacteria strains and fungus. The results showed that the Mn,Sr-TCP-coated Zn-Li samples exhibited about 10% inhibition on the growth of all four bacteria strains and had the most pronounced effect on Candida albicans fungus (about 50% inhibition of growth). The prepared coatings have the potential to improve the degradation behavior and biological characteristics of Zn-Li alloys.
Article
Materials Science, Multidisciplinary
Yunting Su, Chuanxin Liang, Xun Sun, Hualei Zhang, Qianglong Liang, Yufeng Zheng, Yulin Hao, Rui Yang, Dong Wang, Dipankar Banerjee, Yunzhi Wang
Summary: Through the integration of thermodynamic databases, first-principles calculations, phase field simulations, and experiments, this study reveals the coupling between the shuffle (O ') and shear (alpha'', orthorhombic martensite) nanodomains in Ti-Nb alloys. The transformation path changes with Nb concentration, and the resulting microstructural states exhibit an unprecedented continuous transformation behavior with superelasticity and almost zero hysteresis. This research provides new insight in alloy design by utilizing composition-dependent shuffle-shear coupling during a structural phase transformation.
Article
Chemistry, Multidisciplinary
Jieni Fu, Shuilin Wu, Shengli Zhu, Yufeng Zheng, Hui Jiang, Dongbin Wang, Zhaoyang Li, Zhenduo Cui, Xiangmei Liu
Summary: The energy transfer and efficiency of ultrasound to piezoelectric materials play a crucial role in the catalytic performance and therapeutic effects for deep infection diseases. The microbubble cavitation near the surface of BTO/Ber NPs under ultrasound leads to sonoluminescence and high pressure, further activating Ber and enabling electron transfer with changing energy levels of BTO NPs. The piezoelectric electron-phonon coupling caused by ultrasound narrows bandgap and prolongates carrier-lifetime, resulting in increased ROS generation and antibacterial activity against Staphylococcus aureus.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongtao Yang, Dawei Jin, Jiancun Rao, Jiahui Shi, Guannan Li, Cheng Wang, Kai Yan, Jing Bai, Guo Bao, Meng Yin, Yufeng Zheng
Summary: In order to reduce the occurrence of restenosis and thrombosis in stents, it has been clinically proven that using a thinner-strut stent is effective. Therefore, there is a current trend towards using ultrathin-strut (<= 70 μm) designs for durable stents. However, stents made from biodegradable platforms have not been able to achieve breakthroughs across generations due to their excessively thick struts.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jun Li, Chaofeng Wang, Shuilin Wu, Zhenduo Cui, Yufeng Zheng, Zhaoyang Li, Hui Jiang, Shengli Zhu, Xiangmei Liu
Summary: Currently, developing a self-disinfecting coating on touchscreens has become an urgent and meaningful task due to the increased public attention toward the spread of pathogenic viruses and bacteria. In this study, a ZnO-Fe2O3 superlattice nanofilm with engineered electronic defects is designed via atomic layer deposition for photocatalytic bactericidal and virucidal touchscreen. The nanofilm exhibits high antibacterial and antiviral efficacy (>90%) against drug-resistant bacteria and H1N1 viruses under simulated solar or low-power LED light irradiation, while also demonstrating excellent light transmission (>90%), abrasion resistance, and biocompatibility on touchscreens.
ADVANCED MATERIALS
(2023)
Article
Engineering, Biomedical
Yuan Li, Xiangmei Liu, Yufeng Zheng, Yu Zhang, Zhaoyang Li, Zhenduo Cui, Hui Jiang, Shengli Zhu, Shuilin Wu
Summary: Bactericidal nanoclusters formed through self-assembly were shown to be effective in treating infectious pneumonia and enteritis. These nanoclusters, made up of cortex moutan nanoclusters, possess excellent antibacterial, antiviral, and immune regulation activity. They have enhanced tissue and mucus permeability ability compared with natural counterparts.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuqian Qiao, Shuilin Wu, Yufeng Zheng, Chaofeng Wang, Zhaoyang Li, Yu Zhang, Shengli Zhu, Hui Jiang, Zhenduo Cui, Xiangmei Liu
Summary: Microwave (MV)-trigged dynamic therapy using MV-responsive materials shows promise for treating deep infection diseases, including life-threatening osteomyelitis, that are not effectively treated by antibiotics. Surface states of materials play a key role in the generation of free charges and the MV dynamic effects. A new MV responsive system, consisting of a 2D metal-organic framework (2D MOF) on oxidized carbon nanotube (CNT), is developed, which exhibits highly effective antimicrobial activity and eradicates Staphylococcus aureus infected rabbit tibia osteomyelitis under MV irradiation. This study represents a major advancement in antibiotic-free MV therapy for deep tissue bacterial infection.
Article
Engineering, Biomedical
Shuyuan Min, Chaoxin Wang, Bingchuan Liu, Jinge Liu, Yu Liu, Zehao Jing, Yan Cheng, Peng Wen, Xing Wang, Yufeng Zheng, Yun Tian
Summary: Magnesium alloy is a biodegradable material with a modulus similar to bone and has the potential to be used as a bone grafting material. Oxidation heat treatment is an effective passivation method that can slow down the degradation of magnesium alloy. The cytotoxicity and osteogenic induction experiments showed that oxidation heat-treated scaffolds exhibited good biocompatibility and accelerated cell proliferation, leading to increased alkaline phosphatase activity, mineralized nodule quantity, and bone growth marker protein expression. Therefore, oxidation heat-treated 3D printing scaffolds have great potential in fixing bone defects as advanced biomaterials.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2023)
Article
Materials Science, Ceramics
V. Dina Deyneko, Yufeng Zheng, Katia Barbaro, Vladimir N. Lebedev, Sergey M. Aksenov, Elena Yu Borovikova, Marat R. Gafurov, V. Inna Fadeeva, Bogdan I. Lazoryak, Giuseppina Di Giacomo, Claudia Cicione, Veronica Tilotta, Fabrizio Russo, Gianluca Vadala, V. Julietta Rau
Summary: Cu-doped solid solutions Ca10.5-xCux(PO4)7 with beta-Ca3(PO4)2 (beta-TCP) structure were synthesized. The location of Cu2+ ions in the structure was investigated and found to be influenced by the Cu concentration. The antibacterial properties and biocompatibility of the samples were studied, revealing the importance of phase purity.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Multidisciplinary
Cuihong Chen, Lin Chen, Congyang Mao, Liguo Jin, Shuilin Wu, Yufeng Zheng, Zhenduo Cui, Zhaoyang Li, Yu Zhang, Shengli Zhu, Hui Jiang, Xiangmei Liu
Summary: Bacteria-induced epidemics and infectious diseases pose a serious threat to global health. The increasing bacterial resistance caused by antibiotic therapy has made it urgent to develop new treatment strategies to combat bacteria, including multidrug-resistant bacteria. Natural extracts with antibacterial activity and biocompatibility have gained attention as a safer alternative to synthetic chemicals. This review summarizes recent advances in natural extracts from plants, animals, and microorganisms for antibacterial applications, discussing their mechanisms and future development in the field. The review also highlights the categories of antibacterial natural extracts, their treatment of bacterial diseases, and their antimicrobial mechanisms, as well as the prospects and challenges for the therapy of bacterial diseases using natural extracts.
Article
Engineering, Biomedical
Junlong Tan, Shuang Li, Chaoyang Sun, Guo Bao, Meijing Liu, Zehao Jing, Hanwei Fu, Yanhua Sun, Qingmin Yang, Yufeng Zheng, Xiaogang Wang, Hongtao Yang
Summary: Zn biodegradation induces a consistent, dose-dependent spatioteporal response in angiogenesis, both in vivo and in vitro. The concentration of degradation products tends to spread in a decreasing direction centered on the implant. Meanwhile, vasularization significantly increases at a distance of 100-200 mu m from the implant. Vascular endothelial cells show similar effects being affected by different doses of Zn extraction.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Engineering, Biomedical
Chaoxin Wang, Jinge Liu, Shuyuan Min, Yu Liu, Bingchuan Liu, Yuanyu Hu, Zhengguang Wang, Fengbiao Mao, Caimei Wang, Xiaolin Ma, Peng Wen, Yufeng Zheng, Yun Tian
Summary: This study investigated the effects of pore size on the mechanical properties, biodegradation, and new bone formation of additively manufactured biodegradable porous magnesium scaffolds. It was found that high temperature oxidation improved the corrosion resistance of the magnesium scaffold. Scaffolds with a pore size of 500μm showed better mechanical characteristics and supported the survival of mesenchymal stem cells without local toxicity. They also released more magnesium ions and improved the osteogenic differentiation of bone mesenchymal stem cells compared to scaffolds with larger pore sizes. In a rabbit femoral condyle defect model, the 500μm group exhibited unique performance in promoting new bone formation, indicating its potential for bone defect regeneration therapy.
BIOACTIVE MATERIALS
(2023)
Article
Engineering, Biomedical
Ming Li, Yuan Gao, Miaowen Jiang, Hongkang Zhang, Yang Zhang, Yan Wu, Wenhao Zhou, Di Wu, Chuanjie Wu, Longfei Wu, Luzi Bao, Xiaoxiao Ge, Zhengfei Qi, Ming Wei, Ang Li, Yuchuan Ding, Jicheng Zhang, Guangzhen Pan, Yu Wu, Yan Cheng, Yufeng Zheng, Xunming Ji
Summary: Researchers have developed a catheter with a thermally-insulated coating, which improves cooling efficiency and provides neuroprotection for patients with acute ischemic stroke.
BIOACTIVE MATERIALS
(2023)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
