Article
Materials Science, Multidisciplinary
Ritu Verma, Neena Jaggi
Summary: This study investigates the effects of osmium and boron co-doping on hydrogen storage in carbon nanotubes using ab-initio calculations. The results show that osmium/boron co-doping enhances the hydrogen storage capacity, but an increase in boron atom concentration reduces the storage ability.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Bogumila Kumanek, Karolina Z. Milowska, Lukasz Przypis, Grzegorz Stando, Karolina Matuszek, Douglas MacFarlane, Mike C. Payne, Dawid Janas
Summary: The charge transport properties of single-walled carbon nanotubes (SWCNTs) can be modified by doping with nitrogen compounds, and their impact on the electrical conductivity of SWCNTs can be predicted based on their Hammett's constants and pK(a) values. The doping level can also be tuned by changing the type, concentration, and orientation of the nitrogen compounds.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Julia Villalva, Aysegul Develioglu, Nicolas Montenegro-Pohlhammer, Rocio Sanchez-de-Armas, Arturo Gamonal, Eduardo Rial, Mar Garcia-Hernandez, Luisa Ruiz-Gonzalez, Jose Sanchez Costa, Carmen J. Calzado, Emilio M. Perez, Enrique Burzuri
Summary: Encapsulating robust Fe-based SCO molecules within the 1D cavities of single-walled carbon nanotubes (SWCNT) can endure encapsulation and positioning of individual heterostructures in nanoscale transistors, triggering a large conductance bistability and providing a backbone for readout and positioning of SCO molecules into nanodevices, as well as helping to tune their magnetic properties at the nanoscale. Spin-crossover molecules are ideal sensors due to their ability to change spin-state under various stimuli, but typically face limitations such as insulating and unstable properties, which can be overcome through encapsulation inside carbon nanotubes.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Thomas R. Durrant, Al-Moatasem El-Sayed, David Z. Gao, Thomas Rueckes, Gennadi Bersuker, Alexander L. Shluger
Summary: The increase in resistance at carbon nanotube junctions is the bottleneck for charge transport, and models can be used to predict the current transport characteristics of different carbon nanotube junctions.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Xinyu Jiao, Chao Shi, Yiming Zhao, Lele Xu, Shaokang Liu, Peng-Xiang Hou, Chang Liu, Hui-Ming Cheng
Summary: In this study, high-quality SWCNTs were prepared on a large scale using a floating catalyst chemical vapor deposition method. The resulting SWCNTs showed a low residual catalyst content and a high rapid oxidation temperature. Macroscopic SWCNT fibers with high electrical conductivity were successfully spun from these high-quality SWCNTs.
Article
Chemistry, Physical
Yutao Zhang, Yahui Li, Haijian Wen, Leitao Cao, Wenxin Xiao, Jintao Zhao, Zeyuan Nan, Suxia Zhang, Song Qiu, Qingwen Li
Summary: This study presents a novel method based on electrochemical shortening and selective adsorption to precisely control the length and distribution of single-walled carbon nanotubes (SWCNTs). Experimental results reveal that SWCNTs with smaller diameters are more prone to truncation, resulting in shorter lengths. Remarkably, a length-dependent fluorescence enhancement was observed when the length of semiconducting-SWCNTs (s-SWCNTs) was reduced to below 120 nm. This research lays the foundation for further exploration of length-dependent properties and applications of s-SWCNTs.
Article
Chemistry, Multidisciplinary
Nataliya A. Sakharova, Jorge M. Antunes, Andre F. G. Pereira, Bruno M. Chaparro, Jose Fernandes
Summary: This study focuses on the elastic properties of non-carbon nanotubes based on compounds of the 13th group of the periodic table. The research reveals that these nanotubes are more suitable candidates than carbon nanotubes for building novel nano-devices, and proposes a robust methodology to calculate the surface elastic moduli of phosphide nanotubes.
Article
Chemistry, Physical
Hassaan A. Butt, Ilya V. Novikov, Dmitry V. Krasnikov, Artem V. Sulimov, Amit K. Pal, Stanislav A. Evlashin, Anton M. Vorobei, Yaroslav I. Zuev, Dmitry Ostrizhiniy, Dmitry Dzhurinskiy, Yuri A. Popov, Olga O. Parenago, Albert G. Nasibulin
Summary: In this work, pre-consolidated form of single-walled carbon nanotubes (SWCNT) - SWCNT briquettes - are proposed as a material for manufacturing electrically and thermally conductive thermoset nanocomposites. The briquettes provide similar performance to other forms of SWCNTs in the nanocomposites, with low percolation thresholds. Compared to other forms of SWCNTs, the pre-consolidated briquettes have lower cost and better dispersibility, making them suitable for large scale production and small scale laboratories.
Article
Materials Science, Multidisciplinary
Georgy A. A. Ermolaev, Ying Xie, Liu Qian, Mikhail K. K. Tatmyshevskiy, Aleksandr S. S. Slavich, Aleksey V. V. Arsenin, Jin Zhang, Valentyn S. S. Volkov, Alexander I. I. Chernov
Summary: This article presents the first measurement of the anisotropic optical constants of monolayer aligned SWCNTs, revealing a large birefringence and high dichroism. The optical response of aligned SWCNTs monolayer can be described by an effective medium approximation using the graphene dielectric function. It also provides a universal approach for determining the carbon concentration in nanotube structures.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Review
Energy & Fuels
Jin-Myung Choi, Jiye Han, Tushar Rane, Soyeon Kim, Ick Soo Kim, Il Jeon
Summary: This review discusses the fundamentals of utilizing SWCNTs in PSCs, including their characteristics as electron-transporting layer, hole-transporting layer, photoactive layer, and interfacial materials. It also presents strategies to improve PSCs performance through defect control and enhancement of electrical and morphological properties.
JOURNAL OF PHYSICS-ENERGY
(2022)
Article
Chemistry, Physical
Nataliya A. Sakharova, Jorge M. Antunes, Andre F. G. Pereira, Bruno M. Chaparro, Jose Fernandes
Summary: This study investigated the elastic properties of chiral and non-chiral single-walled boron nitride nanotubes across a wide range of chiral indices and diameters using a three-dimensional finite element model. The impact of input parameters on numerical simulation results was extensively explored, and the elastic properties of single-walled boron nitride nanotubes were compared with those of single-walled carbon nanotubes.
Article
Materials Science, Ceramics
Dan Chen, Guoqiang Chen, Mao Deng, Haomin Wang, Zhangyi Huang, Jianqi Qi, Tiecheng Lu
Summary: In this study, multi-walled carbon nanotubes (MWCNTs) were uniformly dispersed in aluminium nitride (AlN) powders, and the MWCNTs-doped AlN ceramics were sintered by spark plasma sintering. The effects of MWCNTs content on the microstructure and mechanical properties of the ceramics were investigated, and it was found that a doping amount of 2.5 wt% resulted in the highest relative density and hardness.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Silvia Aidee Solorio-Rodriguez, Andrew Williams, Sarah Sos Poulsen, Kristina Bram Knudsen, Keld Alstrup Jensen, Per Axel Clausen, Pernille Hogh Danielsen, Hakan Wallin, Ulla Vogel, Sabina Halappanavar
Summary: This study aimed to determine the influence of single or multi-walled structures and surface functionalization on pulmonary toxicity of carbon nanotubes (CNTs) and to identify the underlying mechanisms. Mice were exposed to different doses of SWCNTs or MWCNTs, and inflammation and DNA damage were assessed. Transcriptomics analysis showed similar responses across all CNTs, with inflammation, cellular stress, metabolism, and DNA damage responses being affected. One pristine SWCNT was found to be the most potent and potentially fibrogenic, warranting further toxicity testing.
Article
Materials Science, Multidisciplinary
Bo Li, Shufeng Li, Kaiyuan Shi, Xin Zhang, Shenghui Yang, Deng Pan, Lei Liu, Yanli Nan, Xiang Zhu, Xiaolong Song, Lei Su, Guoqiang Yang
Summary: This study investigates the structural properties of SWNT bundles under different dynamic pressures, including phase transition, recovery dynamics, and energy dissipation mechanisms. The results show that the structural behaviors of SWNTs under dynamic pressure differ from those under static pressure, and they exhibit high structural stability.
Article
Materials Science, Multidisciplinary
Deobrat Singh, Vivekanand Shukla, Nabil Khossossi, Per Hyldgaard, Rajeev Ahuja
Summary: In this study, we explore the possibility and potential benefits of rolling a Si2BN sheet into nanotubes. Using density functional theory (DFT), we investigate the structural stability, chemical bonding, and conduction properties of different diameter armchair and zigzag Si2BN nanotubes. Our findings confirm the stability of Si2BN nanotubes and reveal variations in conduction properties due to different structural configurations.
PHYSICAL REVIEW MATERIALS
(2022)
