Article
Chemistry, Physical
Jin-Sung Park, Sungjin Yang, Yun Chan Kang
Summary: The study demonstrates that the porous microspheres consisting of V2O3 anchored on entangled carbon nanotubes exhibit excellent performance as cathode for aqueous zinc-ion batteries, with high reversible capacity and superior electrochemical properties, attributed to their unique structure and composition.
Article
Materials Science, Multidisciplinary
A. Garzon-Roman, A. Ferreiro, C. Zuniga-Islas, M. E. Rabanal
Summary: In this study, multi-wall carbon nanotubes (MWCNTs) were synthesized using ultrasonic spray pyrolysis method with different synthesis times. The effects of synthesis time on the structural quality and length of the MWCNTs were analyzed using various techniques. The results showed that the MWCNTs had high quality, with good graphitization extent and controllable length.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Multidisciplinary
Thuan Anh Vo, Yoonmo Koo, Jinsoo Kim, Seung-Soo Kim
Summary: This study characterized non-precious metal catalysts over activated carbon and TiO2-SiO2 supports loaded via incipient wetness impregnation and spray pyrolysis. The research found that activated carbon exhibited better performance in syringol conversion and hydrocarbon selectivity compared to TiO2-SiO2. Additionally, the Ni catalyst showed more effective hydrodeoxygenation performance compared to Fe and NiFe catalysts. The study provides a promising potential for the utilization of non-precious metals and biomass-derived activated carbon in removing oxygen from bio-oil model compounds, contributing to sustainable renewable energy development.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yuan Zhu, Jie Miao, Mingce Long, Chunfei Wu
Summary: Producing carbon nanotubes from waste plastics can enhance the economic feasibility of waste management. Spray pyrolysis is a practical and promising method in this research area. This study found that reaction parameters can influence the yield of carbon nanotubes, and the catalyst size plays a significant role in the synthesis process.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
Sion Oh, Kyungmin Im, Jinsoo Kim
Summary: Developments in fuel cell technology have led to the design of efficient electrocatalysts for the oxygen reduction reaction (ORR). Metal-nitrogen-carbon (M-N-C) catalysts, particularly carbon nanotube-encapsulated hollow Co-Fe-NC electrocatalysts, show promising catalytic activity and excellent selectivity for ORR. However, the synthesis of carbon-based metal electrocatalysts with evenly distributed active sites and well-controlled structures remains challenging.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Taraneh Karbaschi, Ali Sharifian, Parmida Fareghi, Mostafa Baghani, Jianyang Wu, Majid Baniassadi
Summary: This study presents for the first time the highly controllable mechanical properties of three-dimensional conical coiled CNTs structure, assembled from straight CNTs in a form of nanocone, using molecular dynamics simulations. The tensile stiffness and phase transformation of the conical CCNTs are controlled by geometrical characteristics in the domination section of van der Waals forces, while the stretchability in the domination section of covalent forces can vastly range depending on radius of each coil. Furthermore, the hollow conical geometry enables highly compressed and different behaviors between cyclic compression and tension, indicating the potential of conical CCNTs for mechanical robust nanodevices.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Blazej Podlesny, Kevin R. Hinkle, Keita Hayashi, Yoshiaki Niidome, Tomohiro Shiraki, Dawid Janas
Summary: By introducing nonionic surfactant into the typically employed mixture of anionic surfactants, the aqueous two-phase extraction (ATPE) method can be enhanced for the straightforward isolation of (6,4) single-walled carbon nanotubes (SWCNTs) in one step. Thorough analysis of the parameter space by experiments and modeling reveals the underlying interactions between SWCNTs, surfactants, and phase-forming agents, which drive the partitioning. A separation mechanism is proposed based on the new insight gained.
Article
Biotechnology & Applied Microbiology
Samikannu Prabu, Kung-Yuh Chiang
Summary: The effect of catalyst composition on the catalytic pyrolysis of biodegradable plastic (PLA) in generating hydrogen and high-value carbon nanotubes (CNTs) was investigated using Ni-Mg-Al oxygen carrier catalysts. The results showed that the catalyst composition and pyrolytic temperature significantly influenced the development of CNTs and hydrogen production.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Physical
Dingding Yao, Haiping Yang, Qiang Hu, Yingquan Chen, Hanping Chen, Paul T. Williams
Summary: In this study, carbon nanotubes were produced from post-consumer mixed waste plastics using a pyrolysis-catalysis process, with the Ni-Fe/MCM41 catalyst displaying the highest catalytic activity. The order of catalytic activity was related to differences in catalyst pore volume and catalyst reducibility, with the formation of a Ni-Fe alloy suggested to be crucial for the promotion of carbon nanotube formation. By-product production of hydrogen at large quantities could be utilized as process fuel.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Energy & Fuels
Yuan-Mei Song, Ru-Quan Liang, Fei Wang, Dan-Hui Zhang, Liu Yang, Deng-Bo Zhang
Summary: The study utilized carbon nanotubes to prepare sulfonated carbon nanotubes, which enhanced the methane storage capacity and formation rate in hydrate formations. Sulfonated carbon nanotubes showed excellent dispersity and stability in methane hydrate formations.
Article
Chemistry, Analytical
Xuemei Lv, Yongfa Zhang, Ying Wang, Guojie Zhang, Jun Liu, Yang Lu
Summary: Carbon nanotubes were successfully synthesized by Fe-K catalytic pyrolysis of coal, revealing key factors such as insufficient carbon sources, limited catalytic effect of potassium carbonate, synergistic effect of Fe and K, and the molten state of the catalyst.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Multidisciplinary
Guoqiang Song, Claudia Li, Tian Wang, Kang Hui Lim, Feiyang Hu, Shuwen Cheng, Emmerson Hondo, Shaomin Liu, Sibudjing Kawi
Summary: A novel carbon-based material called CNTs@HPC, consisting of multi-wall carbon nanotubes encapsulated within hollow porous carbon particles, has been successfully synthesized for supercapacitor applications. The material exhibits a distinctive hierarchical porous structure with macropores, mesopores, and micropores, resulting in a high specific surface area of 913 m2 g-1. The optimized CNTs@HPC demonstrates a specific capacitance of 306 F g-1 at a current density of 1 A g-1 and displays additional pseudocapacitance characteristics, surpassing conventional electric double-layer capacitors.
Review
Chemistry, Multidisciplinary
Mariya E. Ivanova, Ralf Peters, Martin Mueller, Stefan Haas, Martin Florian Seidler, Gerd Mutschke, Kerstin Eckert, Philipp Roese, Sonya Calnan, Rory Bagacki, Rutger Schlatmann, Cedric Grosselindemann, Laura-Alena Schaefer, Norbert H. Menzler, Andre Weber, Roel van de Krol, Feng Liang, Fatwa F. Abdi, Stefan Brendelberger, Nicole Neumann, Johannes Grobbel, Martin Roeb, Christian Sattler, Ines Duran, Benjamin Dietrich, M. E. Christoph Hofberger, Leonid Stoppel, Neele Uhlenbruck, Thomas Wetzel, David Rauner, Ante Hecimovic, Ursel Fantz, Nadiia Kulyk, Jens Harting, Olivier Guillon
Summary: Hydrogen produced from renewables will have a growing impact on global energy dynamics towards sustainability and carbon neutrality. However, the current share of green hydrogen is too low, and there is a rising demand for high-quality hydrogen. This highlights the need for economically viable hydrogen generation technologies. This article evaluates existing technologies for high-quality hydrogen production based on solar energy, considering their current development level, technical limitations, and future potential.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Andrei Veksha, Jintao Lu, Zviad Tsakadze, Grzegorz Lisak
Summary: The utilization of renewable raw materials in industrial manufacturing and the capture of carbon can reduce the carbon footprint. We developed a pyrolysis-based process to produce biogenic multi-walled carbon nanotubes (MWCNTs) and H-2 from biomass. We found that the conversion of hydrocarbon compounds into MWCNTs and H-2 is affected by the release of CO2 during biomass decomposition. Capturing CO2 with a calcium sorbent can improve the pyrolysis gas and enhance the production of MWCNTs and H-2.
Article
Nanoscience & Nanotechnology
Chengfeng Zhang, Zhenghai Tang, Xinglong An, Shifeng Fang, Siwu Wu, Baochun Guo
Summary: By constructing segregated structures in sulfur-cured rubbers, polymer composites with high conductivity and good mechanical properties can be prepared, improving electrical conductivity while also enhancing modulus and stretchability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yan-Hong Yin, Chun-An Ma, Zi-Ping Wu, Li-Tao Chen, You-Qun Chu
Summary: In this study, the preparation of H2WO4 nanorods with diameter of 10-50 nm and WO3 nanorods with diameter of 10-100 nm was investigated using the DWCNT template method. It was found that DWCNTs play an important role in mediating the morphology and size of nano-WO3.
Article
Chemistry, Multidisciplinary
Zhi Yong Wang, Zhong Xu Lu, Wei Guo, Qin Luo, Yan Hong Yin, Xian Bin Liu, Ye Sheng Li, Bao Yu Xia, Zi Ping Wu
Summary: The study introduces a dendrite-free Li/carbon nanotube (CNT) hybrid, which is fabricated by coating molten Li on CNTs, effectively addressing the safety and cycling performance issues caused by dendritic Li in lithium metal batteries. The obtained hybrid demonstrates excellent stability and conductivity, showing outstanding performance even at high current densities.
ADVANCED MATERIALS
(2021)
Article
Electrochemistry
Yanhong Yin, Min Wen, Zhen Tong, Qinqi Zhan, Jun Chen, Xianbin Liu, Yesheng Li, Ziping Wu, Dionysios D. Dionysiou
Summary: Tungsten carbide-embedded graphite carbon films as co-catalysts for hydrogen evolution reaction exhibit high activity and stability, preventing agglomeration of tungsten carbide particles efficiently. Charges easily transfer from Pt NPs to WC via connected-GCFs, contributing to the high HER activity of WC@GCFs-Pt.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Ping Xie, Wei Yuan, Xianbin Liu, Yumeng Peng, Yanhong Yin, Yesheng Li, Ziping Wu
Summary: This review comprehensively and systematically expounds the recent progress of state-of-the-art flexible supercapacitors using advanced carbon nanomaterials, covering micro/nano-structure control, macroscopic morphologies design, property optimization, and application. The challenges and prospects of carbon nanomaterials applied in flexible supercapacitors are outlined and emphasized based on the current advances. Additionally, the matching between the characters of carbon nanomaterials, construction of flexible supercapacitors, and fabrication technologies are proposed.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Jia Wen Fang, Yuan Ma, Zhi Yong Zhang, Bin Ze Yang, Ye Sheng Li, Ying Yan Hu, Yan Hong Yin, Xian Bin Liu, Zi Ping Wu
Summary: The use of magnetic particles and carbon materials is crucial in managing microwave pollution, and the metal-organic framework (MOF)-derived composite with optimized impedance matching shows great potential in solving the issue of mismatched impedance in currently available absorbers. This composite demonstrates extremely strong microwave absorption, even at low temperatures, and is believed to be a promising solution for critical electromagnetic wave pollution.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Wei Deng, Yong Long Wang, Wei Guo, Chao Feng Zhao, Xian Bin Liu, Yin Yan Hu, Ye Sheng Li, Bao Yu Xia, Zi Ping Wu
Summary: This study presents a universal layer-by-layer assembly method to prepare integrated electrodes using carbon nanotubes and active materials, showing high specific capacity and remarkable rate capability in pouch cells. This approach provides a facile way for designing and assembling hybrid materials for energy storage technologies in the future.
Article
Engineering, Environmental
Gang Wang, Ting Liu, Xiangxiang Fu, Ziping Wu, Meilin Liu, Xunhui Xiong
Summary: By designing a free-standing carbon nanotube film functionalized with lithiophilic amide-containing functional groups, uniform Li nucleation and prevention of dendrite growth can be achieved. The A(f)-CNT electrode showed ultralow overpotential and high Coulombic efficiency in a Li||A(f)-CNT half-cell, and exhibited excellent cycle stability and low polarization in full cell configurations with a LFP cathode.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Bin Ze Yang, Ping Xie, Qin Luo, Zhi Wei Li, Cai Ying Zhou, Yan Hong Yin, Xian Bin Liu, Ye Sheng Li, Zi Ping Wu
Summary: In this work, a spraying/discharging strategy is employed to fabricate binder-free omega-Li3V2O5 (omega-LVO) catalytic network with multi-polarization centers for addressing the shuttle effect and sluggish kinetics of polysulfides in lithium-sulfur batteries. The high polarity of Li, V, and O in the catalyst effectively captures polysulfides and promotes their conversion to short chains, leading to excellent kinetics behavior even with low catalyst loading. Additionally, the conductive networks in the omega-LVO octahedron facilitate electronic/ionic transmission and enhance the electrochemical performances of LSBs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Zhi Yong Zhang, Zhi Wei Li, Qin Luo, Bin Ze Yang, Yan Liu, Ying Yan Hu, Xian Bin Liu, Yan Hong Yin, Ye Sheng Li, Zi Ping Wu
Summary: The researchers developed a free-standing Si-based film anode with a structure of carbon nanotube networks and carbon nanocoating layer, which improved the long cycling performance of the Si anode, enhanced electronic contact, and maintained lithium storage properties. The Si anode exhibited ultra-high specific capacity and excellent cycling performance, making it suitable for lithium-ion batteries.
Article
Electrochemistry
Qin Luo, Ming Zhang, Jin Ming Liu, Zhi Wei Li, Ying Yan Hu, Yan Hong Yin, Xian Bin Liu, Ye Sheng Li, Zi Ping Wu
Summary: This study visualized the redox reaction of Li-S batteries and identified their polysulfide component. By discharging solid sulfur, liquid polysulfides with controllable composition and concentration were obtained. The interaction between polysulfides and carbon nanotube sponges (CNSs) promoted fast electrochemical conversion kinetics and inhibited the shuttle effect. The Li-S battery with the polysulfides-CNSs cathode demonstrated high sulfur utilization and long cycling stability.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Qinqi Zhan, Yanhong Yin, Ke Zhang, Peng Deng, Min Wen, Xianbin Liu, Yesheng Li, Ziping Wu
Summary: In this study, WC-Co mixtures with clean surface and controllable carbon content were successfully synthesized by in-situ synthesis using liquid methanol as a carbon source and nitrogen gas as a diluent. This method effectively prevents the occurrence of excess carbon deposition and provides a more economical and efficient pathway for the synthesis of high-quality WC-Co mixtures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yumeng Peng, Changang Lai, Ming Zhang, Xianbin Liu, Yanhong Yin, Yesheng Li, Ziping Wu
Summary: A novel zinc-stannum (Zn-Sn) alloy electrode was prepared to solve the dendrite growth and corrosion problems of zinc electrode during cycling. The optimized Zn-Sn10 alloy electrode showed lower voltage hysteresis and non-dendritic topography compared to pure zinc foil electrode, and exhibited improved corrosion resistance in alkaline electrolyte. The assembled Zn-air battery based on this alloy anode electrode showed satisfactory power density, rate properties and cycling life.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Zhi Wei Li, Jia Wen Fang, Ye Qian Mi, Ting Liu, De Kun Yao, Yi Ping Zheng, Jin Yang Fang, Yan Hong Yin, Xian Bin Liu, Ye Sheng Li, Zi Ping Wu
Summary: Lightweight, flexible, and water-repellent shielding materials are crucial in managing radiation pollution for modern electronic devices. In this study, carbon nanotube-fastened graphene composite film was demonstrated to have high EMI shield performance due to the interconnected bubbles formed by the curved and fastened morphology of reduced graphene. Additionally, the thin hydrophobic SiO2 coating on the film's surface provided stable water repellence even in severe conditions.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Zhong Xu Lu, Ke Wen Mu, Zhi Yong Zhang, Qin Luo, Yan Hong Yin, Xian Bin Liu, Ye Sheng Li, Yong Lei, Zi Ping Wu
Summary: Using a carbon nanotube macrofilm (CMF) as a current collector, this study addresses the instability issues of LiCoO2 at high voltages and achieves high specific capacities even after 300 cycles at 4.5 V. The interactions between decomposed electrolytes and carbon nanotubes play a key role in maintaining an ultrathin cathode electrolyte interphase, leading to stable cycling performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Inorganic & Nuclear
Hu Yan-Jie, Yin Yan-Hong, Zhang Ming, Wu Zi-Ping, Shen Zhong-Rong
Summary: In-situ growth of carbon nanomaterials on active substances is a favorable strategy for preparing electrodes in lithium-ion batteries with excellent electrochemical performance and high stability. The CNS@TiO2SNP-600 electrode demonstrated high discharge specific capacity and retention rate, indicating promising applications in green chemistry fields.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
