Review
Chemistry, Physical
Nora Nyholm, Nuria Espallargas
Summary: Carbon nanostructures have been proposed as potential candidates for a new generation of lubricant additives due to their excellent properties. This review surveys the literature on carbon nanostructures as lubricant additives and identifies dimensionality, structural integrity, and chemical interactions as important properties governing their tribological behavior.
Article
Engineering, Mechanical
Bao Jin, Guangyan Chen, Jun Zhao, Yongyong He, Yiyao Huang, Jianbin Luo
Summary: The study found that compound grease with trace amounts of Mn3O4#G nanocomposite additives can significantly reduce the friction coefficient, while the microstructure of graphene tends to be ordered under high-temperature friction. Additionally, the synergistic effect of Mn3O4#G filling effect and graphene island effect also significantly improves lubrication properties.
Article
Engineering, Mechanical
Pranav Dev Srivyas, M. F. Wani, Rakesh Sehgal, Chandra Shekhar Singh Bisht, M. S. Charoo, Ankush Raina, Mir Irfan Ul Haq
Summary: The study suggests that the combination of graphene as a solid lubricant and surface texturing can effectively reduce friction and wear in hybrid aluminum composite and chromium plated chrome steel tribopairs. Textured surfaces consistently showed lower coefficient of friction and wear volume compared to non-textured surfaces under both dry sliding and lubricated conditions.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
Paul A. Advincula, Victoria Granja, Kevin M. Wyss, Wala A. Algozeeb, Weiyin Chen, Jacob L. Beckham, Duy Xuan Luong, C. Fred Higgs, James M. Tour
Summary: Carbon nanomaterial additives, such as graphene, can significantly improve tribological performance as lubricant additives. Flash graphene (FG) derived from post-consumer plastic and metallurgical coke is added to poly(alpha olefin) 6 or 9, resulting in a significant decrease in friction coefficient, wear scar diameter, and roughness.
Article
Energy & Fuels
Nam Hee Kwon, Jang Mee Lee, Tae-Ha Gu, Xiaoyan Jin, Seong-Ju Hwang
Summary: The homogeneous colloidal mixture of conductive metal oxide nanosheet (NS) and reduced graphene oxide (rGO) NS provides a universal way to optimize the functionality of semiconductor nanocrystals in photocatalysts. The self-assembly between CdS quantum dots (QDs) and RuO2/rGO NSs yields strongly coupled ternary nanohybrids with enhanced photocatalytic activity and increased porosity, showing notably higher photocatalytic activities for visible-light-induced H-2 evolution and photocurrent generation. Co-hybridization with complementary inorganic and graphene NSs can serve as an efficient methodology to explore high-performance catalyst materials.
Article
Materials Science, Multidisciplinary
Jincan Jia, Xiao Lian, Mingzai Wu, Fangcai Zheng, Yuanhao Gao, Helin Niu
Summary: The study utilized carbon cloth as a substrate to grow alpha-MnO2 nanowires hydrothermally and reduce the surface of MnO2 to form a hierarchical structure. The ASC assembled with alpha-MnO2/Mn3O4@CC and activated carbon showed high energy density and good cycle stability. These findings provide an experimental foundation for the development of advanced, wearable, and energy storage devices.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Jagadeesh Ramadoss, Manoj Christopher Mariadass, Jeyadheepan Karuppasamy, Arumugam Sonachalam, Mani Govindasamy
Summary: Ti3C2T x is a 2D layered structure material with a negative surface charge and hydrophilic properties. The Ti3C2T x /MoS2 composite enhances the layered distance and has a higher specific surface area. The fabricated supercapacitor device based on Ti3C2T x /MoS2 shows high areal capacitance and good energy storage capacity, with improved ionic conductivity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Mechanical
Chuan Li, Bo Wu, Xiaoju Chen, Lei Li, Xinyun Wang, Xiaobao Gao, Xiaodong Wang, Kunhong Hu, Xianguo Hu
Summary: The tribological performance of graphene oxide (GO) nanosheets, modified biodiesel soot (MBS) nanoparticles, and their mixture (MBS-GO) nanoparticles as lubricant additives in water was evaluated. The MBS-GO nanoparticles showed superior lubricating properties in water through the formation of a tribofilm and providing lubrication.
Review
Chemistry, Physical
Anil Dhanola, Kishor Kumar Gajrani
Summary: Graphene oxide (GO) and reduced graphene oxide (r-GO) are emerging as promising lubricating additives due to their unique chemical, electronic, and optical characteristics. They have been widely used in various fields and have shown superior anti-frictional and anti-wear performances. Lubricants containing GO/r-GO materials result in energy savings, low carbon emissions, and reduced mechanical component wear.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Jun Hu, Aijing Ma, Xuan Wu, Yilin Yin, Dan Liu, Alex T. T. Kuvarega, Bhekie B. B. Mamba, Jianzhou Gui
Summary: A Mn3O4/CuOx heterostructure supported on copper foil (CF) was designed for electrocatalytic nitrate reduction to ammonia. The selectivity and Faraday efficiency of ammonia were 96.79% and 86.55%, respectively. Multiple characterizations showed that Mn3O4/CuOx/CF exhibited faster charge transfer and generated more electron-deficient Mn sites, electron-rich Cu sites, and oxygen vacancies, which enhanced the catalytic activity. This study may provide a new approach for constructing heterostructures as electrocatalysts for nitrate reduction to ammonia.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Preeti Oswal, Kritika Sood, Siddhant Singh, Aayushi Arora, Anurag Bahuguna, Suraj Purohit, Arun Kumar
Summary: Pd6P has been synthesized for the first time using a simple and straightforward method, and grafted onto graphene oxide to form a GO-Pd6P nanocomposite. The nanocomposite shows high activity in electrochemical hydrogen evolution reactions and maintains stable and efficient hydrogen production for up to 16 hours.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Nirvik Sahoo, Gaurav Tatrari, Chetna Tewari, Manoj Karakoti, Bhashkar Singh Bohra, Anirban Danadapat
Summary: The researchers developed a modified pyrolysis method to synthesize graphene sheets using waste plastic as a precursor. They then loaded vanadium pentaoxide on the graphene sheets to create supercapacitor electrodes. The synthesis of graphene and the performance of the electrodes were confirmed through various characterization techniques and spectroscopic and electrochemical tests.
Article
Chemistry, Physical
Srikanth Gnanakrishnan, Raja Nehru, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study developed a novel ternary nanocomposite for enhanced DMZ sensors, which exhibited improved electrocatalytic activity and wide linear ranges. The developed sensor demonstrated its ability to accurately monitor DMZ food contamination samples.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jinyuan Zhu, Yingying Zhu, Yifan Zhou, Chaoran Li, Geng Chen, Xinbao Li
Summary: In this study, an efficient photocatalyst utilizing a nanocomposite of silicon dioxide (SiO2) and graphitic carbon nitride (GCN) was developed for the treatment of highly concentrated printing and dyeing wastewater. The nanocomposite exhibited superior photocatalytic performance and efficient degradation of rhodamine B (RhB) at both low and ultra-high concentrations. The optimized synthesis conditions and good cycling stability of the nanocomposite make it suitable for practical applications. This work contributes to the design and development of innovative environmentally-friendly photocatalysts for the effective degradation of highly concentrated pollutants.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Isra H. Ali, Amgad Ouf, Fatma Elshishiny, Mehmet Berat Taskin, Jie Song, Mingdong Dong, Menglin Chen, Rania Siam, Wael Mamdouh
Summary: This study aimed to prepare electrospun chitosan/gelatin nanofiber scaffolds reinforced with different amounts of graphene nanosheets for antibacterial and wound-healing applications. The results showed that nanofibers reinforced with 0.15% graphene nanosheets had the smallest diameter and highest porosity, and exhibited significant inhibition effects against Escherichia coli and Staphylococcus aureus. Moreover, the graphene nanosheets greatly enhanced cell migration capacity.
Article
Engineering, Mechanical
Wei Wang, Yongyong He, Jun Zhao, Yang Li, Jianbin Luo
TRIBOLOGY INTERNATIONAL
(2017)
Article
Engineering, Mechanical
Yan Wang, Xiao Ling, Yongfu Wang, Jun Zhao, Junyan Zhang
TRIBOLOGY INTERNATIONAL
(2017)
Article
Chemistry, Physical
Jun Zhao, Junyuan Mao, Yingru Li, Yongyong He, Jianbin Luo
APPLIED SURFACE SCIENCE
(2018)
Article
Materials Science, Ceramics
Jun Zhao, Meng Gao, Mingxing Ma, Xuefeng Cao, Yongyong He, Weihua Wang, Jianbin Luo
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2018)
Article
Engineering, Mechanical
Junyuan Mao, Jun Zhao, Wei Wang, Yongyong He, Jianbin Luo
TRIBOLOGY INTERNATIONAL
(2018)
Article
Chemistry, Multidisciplinary
Guangyan Chen, Jun Zhao, Kai Chen, Siyu Liu, Minyi Zhang, Yongyong He, Jianbin Luo
Article
Chemistry, Physical
Jun Zhao, Yiyao Huang, Yingru Li, Tong Gao, Zhan Dou, Junyuan Mao, Hongdong Wang, Yongyong He, Shuangxi Li, Jianbin Luo
APPLIED SURFACE SCIENCE
(2020)
Correction
Chemistry, Multidisciplinary
Guangyan Chen, Jun Zhao, Kai Chen, Siyu Liu, Minyi Zhang, Yongyong He, Jianbin Luo
Article
Chemistry, Multidisciplinary
Jun Zhao, Di Wang, Fan Zhang, Yuan Liu, Baodong Chen, Zhong Lin Wang, Jinshan Pan, Roland Larsson, Yijun Shi
Summary: This study successfully achieved real-time monitoring of lubricating oils through the contact electrification process of oil-solid contact, demonstrating the possibility of electron transfer from oil to solid surface during this process. By quantitatively analyzing the relationship between liquid adsorption behavior and output ability, a strategy for intelligent diagnosis of lubricating oils was provided.
Article
Chemistry, Multidisciplinary
Jun Zhao, Tong Gao, Jie Dang, Weiyu Cao, Ziqi Wang, Shuangxi Li, Yijun Shi
Summary: This study successfully improved the lubrication and anti-wear performance of grease under high temperature and high load conditions by using modified talc nanosheets, providing guidance for developing natural lubricant additives and showing great potential in sustainable lubrication.
Article
Nanoscience & Nanotechnology
Jun Zhao, Di Wang, Fan Zhang, Jinshan Pan, Per Claesson, Roland Larsson, Yijun Shi
Summary: By engineering the wetting properties of solid surfaces, oleophobic/superamphiphobic O-TENGs are achieved, which exhibit excellent electricity generation, significant durability, and superhigh sensitivity for oil monitoring.
NANO-MICRO LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Dengyu Liu, Jun Zhao, Shuangxi Li, Xinni Zhao, Lele Huang
Summary: A spring-energized seal, with excellent self-lubrication and low temperature stability, is widely used in liquid fuel valves' rotating end-face seals. However, temperature has a significant impact on both the physical properties and leakage performance of spring-energized rings. Therefore, a high and low temperature sealing test was conducted to study the leakage characteristics, friction torque, and wear characteristics of the seal under different temperatures.
Article
Engineering, Mechanical
Shicong Li, Haoran Liao, Jun Zhao, Shuangxi Li
Summary: In this study, the tribological properties of six different frictional pairs were analyzed in an oil-air environment. The results showed that the frictional pairs consisting of Al2O3 coating and resin-impregnated graphite, as well as Cr2O3 coating and resin-impregnated graphite, had the lowest coefficient of friction. This research provides important information for selecting suitable frictional pairs for G-LMBPHS in oil-air environments.
Article
Engineering, Mechanical
Jun Zhao, Yijiang Liu, Dengyu Liu, Yanfei Gu, Rao Zheng, Runmei Ma, Shuangxi Li, Yongfu Wang, Yijun Shi
Summary: This study investigates the tribological performance of metal-impregnated graphite, resin-impregnated graphite, and non-impregnated graphite under high temperature and high load. The results show that metal-impregnated graphite exhibits better anti-friction and anti-wear properties, reducing wear depth significantly. Impregnated materials enhance the strength of the graphite matrix and improve the formation of graphite tribofilm on the counterpart surfaces.
