Article
Automation & Control Systems
Muhammad Jamil, Ning He, Wei Zhao, Aqib Mashood Khan, Rashid Ali Laghari
Summary: The recent advancement in nanotechnology has opened up new opportunities in the manufacturing industry, particularly in enhancing heat transfer and tribological capabilities of metal cutting fluids through the proper mixing of nanofluids. A hybrid nanofluids-assisted minimum quantity lubrication system has been successfully applied to achieve high heat transfer performance in cutting difficult-to-cut alloys. Under specific cutting conditions, the use of alumina-multiwalled carbon nanotubes nanofluids has resulted in significant improvements in cutting force, temperature, and surface roughness, showcasing the potential for enhanced machining performance.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Jiju Guan, Yunpeng Ding, Chao Gao, Zhengya Xu, Xuefeng Xu, Zhiliang Wang
Summary: In this study, novel DPS/MWCNT composites were successfully synthesized and developed into a nanofluid for enhancing turning performance, which exhibited excellent dispersion, heat transfer, and wetting properties. During turning, the composites and filled DPS in the nanofluid played vital roles in reducing cutting resistance and improving surface quality and tool life, showing significant enhancements in cutting force, temperature, surface roughness, and tool life compared to conventional turning.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Echeverry-Cardona Laura, Cabanzo Rafael, Quintero-Orozco Jorge, Castillo-Cuero Harvi Alirio, Rodriguez-Restrepo Laura Victoria, Restrepo-Parra Elisabeth
Summary: This study investigated the influence of the dispersed multiple wall carbon nanotubes (MWCNTs) concentration and storage time on the mechanical properties of cement paste. It was found that MWCNTs with a concentration of 10 mM showed the best performance and could be stored for four weeks. The inclusion of MWCNTs increased the elastic modulus and maximum stress of the cement paste.
Article
Multidisciplinary Sciences
Shaban Gul, Muhammad Abdullah, Mahnoor Zafar, Irshad Ali, Nehar Ullah Khan, Mohammad Younas, Mashallah Rezakazemi
Summary: This study presents the development of a hybrid glass fiber reinforced polyester resin composite, which incorporates functionalized carbon nanotubes with glass fiber using polyester resin as a media. The addition of f-MWCNTs effectively strengthens the interfacial bonding, significantly improving the tensile and impact strength of the composite, making it tougher and thermally stable. However, further increase in the concentration of f-MWCNTs resulted in degradation of the mechanical properties of the composite such as compressive strength due to agglomeration of nanoparticles and void formation.
Article
Chemistry, Multidisciplinary
Baasandulam Tserengombo, Hyomin Jeong, Erdenechimeg Dolgor, Antonio Delgado, Sedong Kim
Summary: The study investigated the effects of functionalization methods on multiwalled carbon nanotubes. The best results were achieved with alkaline-treated MWCNTs, showing improved dispersion and stability without the need for organic solvents or strong acids. Both the milling process and mild alkaline oxidation process were found to be environmentally friendly, effective, and convenient for CNTs functionalization.
Article
Chemistry, Multidisciplinary
Yingying Zhou, Izabela Firkowska-Boden, Matthias M. L. Arras, Klaus D. Jandt
Summary: The study found that using HP/BCP blends can significantly enhance the dispersion of MWCNTs, showing promising potential for producing cost-effective MWCNT dispersions. As the size of BCP micelles increases, the dispersion of MWCNTs also increases. Using HP to increase MWCNT dispersion is a promising approach with possible applications in the production of high-performance composite materials.
Article
Engineering, Electrical & Electronic
Zhen Li, He Gao, Longfei Zhang, Shouming Wang, Ji Liu, Shengtao Li
Summary: Due to miniaturisation and integration in advanced power electronic and electrical applications, the breakdown mechanism of epoxy/multiwall-carbon-nanotube nanocomposites is being investigated. The results show that the breakdown strength of nanocomposites with 0.05 wt% multiwall-carbon-nanotubes increases by approximately 18%, but decreases exponentially with increasing thickness. A simulation model of DC breakdown, including carriers transport and segmental dynamics, indicates that the thickness-dependent DC breakdown is determined by both segment chain dynamics and charge transport. The enhanced breakdown strength is attributed to the increased amount of deep traps in the interfacial region caused by multiwall-carbon-nanotubes, while the effect of thickness is due to the enlarged segment chain displacement and electric field distortion as the voltage raising time increases.
Article
Engineering, Electrical & Electronic
A. B. Migdadi, A. A. Ahmad, A. M. Alsaad, Ahmad Telfah
Summary: PMMA polymer doped with MWCNTs has shown potential for photovoltaic and optoelectronic applications. The addition of MWCNTs reduces the transmittance of the material, while increasing the concentration of ZrO2 NPs further decreases transmittance and increases reflectance. Furthermore, the optical band gap energy decreases with the injection of MWCNTs and the increase in ZrO2 concentration.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Electrochemistry
Anh Quang Dao, Do Mai Nguyen, Tran Thanh Tam Toan
Summary: The MWCNTs-PLL material was successfully synthesized and characterized in this study. The modified MWCNTs-PLL/GCE electrode showed excellent responsiveness towards PAR and IBU detection using the DP-ASV technique. The method presented in this study is more dependable than the HPLC tool and can be considered a state-of-the-art approach for simultaneous determination of PAR and IBU using MWCNTs-PLL.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Raina Aman Qazi, Rozina Khattak, Luqman Ali Shah, Rizwan Ullah, Muhammad Sufaid Khan, Muhammad Sadiq, Mahmoud M. Hessien, Zeinhom M. El-Bahy
Summary: Biodegradable and non-biodegradable polymer nanocomposites were synthesized by incorporating multiwalled carbon nanotubes (MWCNTs) and Poly(Methyl Methacrylate) (PMMA). The modified MWCNTs exhibited improved dispersion in the polymer matrix. The nanocomposites showed enhanced thermal properties, electrical conductivity, and ammonia-sensing capabilities, with the PHB/f-MWCNTs/PMMA blend system demonstrating the best overall performance.
Article
Engineering, Industrial
Hao Yang, Jin Xie, Quanpeng He, Junhan Liu, Yuqing Shi
Summary: In single-diamond grinding, a cutting-to-burnishing technique is proposed to improve thermal-force dispersion. It is found that increasing the transition coefficient can reduce workpiece damage and diamond edge wear, resulting in a polishing-like smooth metal surface.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Thermodynamics
Nazanin Karimi Bakhtiyar, Sama Esmaeili, Reza Javadpour, Saeed Zeinali Heris
Summary: This study aimed to investigate the influence of functionalized multi-walled carbon nanotubes (MWCNTs-COOH and MWCNTs-OH) on the performance of a novel indirect laboratory heater redesigned with a helical tube. The experiments showed that as the concentration levels of the nanofluids increased, the system's performance also improved. The study demonstrated the potential of using nanofluids in indirect bath heating to reduce thermal energy consumption and improve efficiency.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Polymer Science
Silvia Beatriz Brachetti-Sibaja, Diana Palma-Ramirez, Aide Minerva Torres-Huerta, Miguel Antonio Dominguez-Crespo, Hector Javier Dorantes-Rosales, Adela Eugenia Rodriguez-Salazar, Esther Ramirez-Meneses
Summary: The optimal conditions for synthesizing and purifying carbon nanotubes from ferrocene were determined through CVD, with key parameters being processing temperature and purification method. The CNTs produced by CVD were found to be superior to commercial ones for preparing composites with conductive polymers, enhancing structural stability and electrical properties. The synergistic effects among hydrogen bonds, stability, and conductivity were more pronounced in PANI/MWCNTs composites, suggesting potential for various technological applications.
Article
Chemistry, Multidisciplinary
Lihui Feng, Liying Feng, Qi Li, Jianmin Cui, Junqiang Guo
Summary: Two formaldehyde detection methods using composite film quartz crystal microbalance (QCM) sensors demonstrate fast reaction, low cost, and ease of manufacture. The PVAm/MWCNTs sensor has a detection limit of 0.5 ppm and a sensitivity of 0.74 ppm/Hz. Different concentrations and proportions of formaldehyde result in varying performance in terms of reuse, gas selectivity, and response at room temperature for the sensors presented.
Article
Polymer Science
Mohammad Alkhedher, Pouyan Talebizadehsardari, Arameh Eyvazian, Afrasyab Khan, Naeim Farouk
Summary: This study investigates the effects of waviness, random orientation, and agglomeration factor of nanoreinforcements on wave propagation in fluid-conveying multi-walled carbon nanotubes (MWCNTs)-reinforced nanocomposite cylindrical shell. By utilizing a novel form of Halpin-Tsai homogenization model and rule of mixture, the effective mechanical properties of the nanocomposite cylindrical shell are estimated. The study finds that these factors have significant impacts on the phase velocity and wave frequency.
Article
Engineering, Electrical & Electronic
Jing Gao, Yuanyuan Xia, Jiang Zhao, Peixin Niu, Yuming Fang, Jingjin Shen, Rongqing Xu
Summary: A flexible pressure sensor using a 3D porous MXene/reduced graphene oxide (MXene/rGO) hybrid foam as the sensing material is developed. The sensor exhibits high sensitivity, broad sensing range, low detectable limit, and rapid dynamic response. It can accurately detect subtle human activities and large joint movements in real time.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Physical
Jiang Zhao, Da Zhang, Shumeng Wang, Zhitong Wang, Rongqing Xu
Summary: In this study, a simple and effective process for in situ fabrication of flexible FeOx nanoparticles embedded N-doped LIG (FeOx@NLIG) electrode is developed by laser direct writing. The assembled in-plane FeOx@NLIG MSCs exhibit excellent electrochemical performance, good flexibility, and remarkable cycling stability. They can serve as vital micro-energy storage components and be easily miniaturized, modularized, and integrated to suit customized needs of wearable electronics.
Article
Nanoscience & Nanotechnology
Peiyao Wang, Feng Shao, Bin Li, Yanjie Su, Zhi Yang, Nantao Hu, Yafei Zhang
Summary: In order to increase the specific capacitance of supercapacitors, polyaniline (PANI) has been used as an additive electrode material. In this study, a molecular-level uniform reduced graphene oxide/PANI (rGO/PANI) composite film was synthesized through self-assembly and specific thermal reduction, which showed great potential in flexible supercapacitors with high areal capacitance. The performance of the rGO/PANI film, such as specific areal capacitance and cycling stability, was significantly enhanced compared to the pure rGO electrode.
Article
Nanoscience & Nanotechnology
Chen Li, Jijun Xiong, Caidong Zheng, Jiang Zhao
Summary: This study presents a low-cost, high-sensitivity, and fast-response nonenzymatic glucose sensor fabricated using a laser-scribing technique. The sensor exhibits high sensitivity, a wide linear detection range, an ultralow detection limit, rapid response time, as well as prominent reproducibility, stability, and immunity to interference. The glucose-sensing mechanism of the sensor is also explored in depth.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Hewei Yuan, Yaozhong Zhang, Yanjie Su, Nantao Hu, Jianhua Yang, Min Zeng, Zhi Yang, Yafei Zhang
Summary: This study introduces a novel Type II heterojunction consisting of BiVO4 thin film and diamond-like carbon (DLC) to the PEC system, which significantly enhances the PEC water-splitting activity. Compared to the pure BiVO4, the BiVO4/DLC heterojunction exhibits increased photocurrent density and improved stability. The enhancement in PEC performance is attributed to the Type II heterojunction photoanodes that promote carrier mobility and reduce the recombination rate of electron-hole pairs. Furthermore, the sp2 carbon phase in DLC acts as a conductive channel, while the sp3 carbon phase provides stable support and passivation effect, leading to an enhancement in both PEC water splitting performance and long-time stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Suning Liang, Zhi Yang, Xianjun Shao, Yiming Zheng, Qiang Wang, Zhengyong Huang
Summary: This study used molecular dynamics and quantum mechanics theory to investigate the adsorption kinetics and mechanism of graphene-based materials on polar small molecules in vegetable oil. The results showed that these materials effectively adsorb the polar small molecules, and the modification with oxygen-containing groups improves their adsorption ability by converting physical adsorption to chemical adsorption. This study provides a theoretical basis for designing and preparing graphene materials with high adsorption properties.
Article
Chemistry, Multidisciplinary
Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Xiaoyong Duan, Wei Cai, Yanjie Su, Zhi Yang
Summary: A 2D bimetallic phthalocyanine-based COF (COF-CuNiPc) was reported as a chemiresistive gas sensor with high gas-sensing performance for nitrogen dioxide (NO2). COF-CuNiPc with an asymmetric synergistic effect achieved a fast adsorption/desorption process to NO2. The bimetallic structure of COF-CuNiPc provided a proper band gap and the CuNiPc heterometallic active site accelerated the adsorption/desorption processes. The concept of a synergistic effect enabled by bimetallic phthalocyanines in this work can provide an innovative direction for designing high-performance chemiresistive gas sensors.
Article
Engineering, Electrical & Electronic
Jiang Zhao, Man Zhao, Jiaying Li, Jing Gao, Rongqing Xu
Summary: This study successfully developed a screen-printed multifunctional all-in-one pressure sensor with integrated microsupercapacitor, which enables smaller and lighter wearable devices. The sensor exhibits high sensitivity, fast response/recovery time, ultralow detection limit, good stability, and accurate monitoring of human activities, while also possessing high area specific capacitance and excellent mechanical flexibility.
IEEE SENSORS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yongwei Zhang, Jianhua Yang, Chunpeng Jiang, Chao Fan, Wen Lv, Xiyu Chen, Min Zeng, Nantao Hu, Tao Wang, Zhi Yang
Summary: A highly sensitive, flexible capacitive pressure sensor based on a fabric-mould strategy is introduced. Custom square-conical arrays with Au electrodes can feasibly be fabricated at scale by peeling them off the fabric mould. The pressure sensor exhibits high sensitivity, fast response/recovery time, and ultralow detection limit, showing great potential for various applications and accurately identifying human physiological information and the spatial distribution and shape of objects.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Huan Yin, Tian Tian, Ruxuan Zhang, Luoxi Zhang, Mingkui Zhu, Tianhao Zhang, Zhi Yang, Nantao Hu, Yafei Zhang, Yanjie Su
Summary: All-carbon nano-heterostructure photodetectors based on different carbon allotropes exhibit excellent photoelectric performance. However, the performance is limited by the interfacial charge transfer and large dark current of graphene. In this study, asymmetric all-carbon nano-heterostructures with C-60/graphene/single-walled carbon nanotube (SWCNT) heterojunctions were designed and demonstrated to have excellent photoelectric response in the visible to NIR range, high responsivity, ultrahigh detectivity, and fast response time. The interfacial charge transfer mechanism was also investigated. This work provides insights into interfacial charge transfer in carbon-based heterostructures and offers a strategy for designing and fabricating high-performance all-carbon nano-heterostructure photodetectors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Huan Yin, Ruxuan Zhang, Tian Tian, Zhi Yang, Nantao Hu, Yafei Zhang, Yanjie Su
Summary: The interfacial charge transfer between single-walled carbon nanotubes (SWCNTs) and graphene is systematically investigated under different external conditions, including bias voltage, temperature, and atmosphere. It is found that electrons are transferred from SWCNTs to graphene when the applied voltage deviates from the neutral point voltage of -4 V. The built-in electric field induces the transfer of electrons from SWCNTs to graphene under various atmospheric and temperature conditions. This study provides important insights into the interfacial charge transfer between SWCNTs and graphene and offers guidance for designing high-performance all-carbon vdW heterostructure nanodevices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Jaafar Abdul-Aziz Mehrez, Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Tao Wang, Ruili Liu, Lin Xu, Yorexis Gonzalez-Alfaro, Zhi Yang
Summary: This study analyzes the structural and electronic parameters of a MoTe2/InN vdW heterostructure using density functional theory (DFT), finding that it has a higher adsorption energy and is well suited for NO2 detection. However, there are limitations in detecting NH3 and SO2.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Jaafar Abdul-Aziz Mehrez, Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Tao Wang, Ruili Liu, Lin Xu, Yorexis Gonzalez-Alfaro, Zhi Yang
Summary: This study employs density functional theory to analyze the structural and electronic parameters of a MoTe2/InN vdW heterostructure. The findings indicate that the heterostructure has a strong adsorption capability for NH3, NO2, and SO2, making it well suited for NO2 detection. However, there are limitations in detecting NH3 and SO2 reliably.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Haoyuan Bai, Jingtian Hu, Shiu Hei Lam, Yanzhen Guo, Xiao-Ming Zhu, Zhi Yang, Jianfang Wang
Summary: The commonly white MoO3 is converted to a black, strongly light-absoring material through heavy V-doping, enabling efficient solar seawater desalination. The V-doped MoO3 nanospheres in the solar absorber film exhibit high evaporation rate and solar energy conversion efficiency.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Physical
Min Hong, Bingcheng Luo, Chao Zhou, Shusheng Xu, Liying Zhang, Zili Zhang, Zhi Yang, Nantao Hu, Yafei Zhang, Zheng Liang
Summary: In this study, a hierarchical design of a film electrode based on NiCoP nanoparticles-decorated carbon nanosheet arrays assembled on nickel nanowires was successfully demonstrated to optimize the conductivity and stability of the electrode. The as-fabricated electrode exhibited high volumetric capacity, energy density, and excellent cycling performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
