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Selective Sorting of Semiconducting C@Single-Walled Carbon Nanotube Heterostructures with Narrow Diameter Distribution.
Adv Sci (Weinh)
March 2025
Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.
Consistently arranging molecules within single-walled carbon nanotube (SWCNT) templates shows promise for creating advanced 1D heterostructures, but diameter variations in raw SWCNTs pose a significant challenge. In this work, a precise synthesis of C fullerene-filled SWCNTs (C@SWCNTs) is achieved through vapor-phase filling followed by polymer sorting. As the SWCNT diameter increases, C molecules first stack in a single chain, then form unusual configurations, including staggered double chains and double helices-configurations not observed in bulk C crystals.
View Article and Find Full Text PDFRuthenium-cobalt alloy nanoparticles uniformly dispersed on carbon nanotube films for high-performance electrocatalytic hydrogen evolution.
J Colloid Interface Sci
March 2025
School of Materials Science and Engineering, Peking University, Beijing 100871, China. Electronic address:
Rational construction of highly active and long-life electrocatalysts for hydrogen evolution reaction (HER) is of great significance for the development of renewable energy-related applications. Metal alloying is an effective method to improve the activity of electrocatalysts. Here, we report an efficient and stable freestanding film electrocatalyst (RuCo/CNT) consisting of uniformly loaded RuCo alloy on carbon nanotubes (CNTs) film.
View Article and Find Full Text PDFEncapsulation of FeS within N/S-Doped bamboo-like carbon nanotubes for facilitated rapid catalytic conversion of polysulfides in high-performance lithium-sulfur batteries.
J Colloid Interface Sci
March 2025
National Base for International Science & Technology Cooperation of New Energy Equipment, Energy Storage Materials and Devices, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105 Hunan, China.
Lithium-sulfur batteries (LSBs) are considered to be competitive next-generation electrochemical energy storage devices, but their practical application is severely hampered by the shuttle effect and slow redox kinetics of soluble lithium polysulfides (LiPSs). To address this challenge, FeS encapsulated within N/S co-doped bamboo-like carbon nanotubes (FeS/NSC) is synthesized via a pyrolysis sulfidation process, and act as a coating separator for LSBs. The 1-dimensional (1D) S and N co-doped carbon substrate materials can act as conductive networks, exposing more adsorption sites and enhancing the capture of LiPSs.
View Article and Find Full Text PDFMicro-Nano Conductive Network Structured Aramid Paper-Based Self-Supporting Cathode Enhances Cycling Stability in Lithium-Sulfur Battery.
ACS Appl Mater Interfaces
March 2025
College of Bioresources Chemical & Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China.
Lithium-sulfur batteries (LSBs) continue to encounter significant challenges in practical applications, primarily attributed to the low electrical conductivity of the cathode active material sulfur, volume expansion during cycling and the uncontrolled shuttle effect of lithium polysulfides (LiPSs). In this work, flexible meta-aramid fibrids (AFs) were innovatively introduced, and polydopamine (PDA) was employed to effectively adhere highly conductive multiwalled carbon nanotubes (MWCNTs) to the AFs surface, thereby forming nanoscale conductive pathways. A wet-laid process analogous to aramid paper-making was utilized to enhance interfacial bonding between AFs and rigid carbon fibers (CFs), resulting in a self-supporting paper-based cathode material with a uniform, dense three-dimensional micronano-scale conductive network and stable structure.
View Article and Find Full Text PDFSmall-Molecule Self-Assembly Strategy for Ultrafast, Sensitive, and Portable Multiplexed Antibiotics Detection by Transistor Biosensor Arrays.
ACS Nano
March 2025
Hunan Institute of Advanced Sensing and Information Technology, Hunan Provincial Key Laboratory of Smart Carbon Materials and Advanced Sensing, Xiangtan University, Xiangtan, Hunan 411105, China.
The urgent need for portable, sensitive, and accurate techniques to analyze multiple antibiotics is critical to mitigating the health risks associated with low-dose antibiotics coexposure-induced drug resistance, especially in infants. Emerging field-effect transistor (FET) biosensors are expected to realize the above requirement, but face challenges in terms of sensitivity and selectivity for complex solutions in practical applications. Here, we introduce a small-molecule coating strategy on carbon nanotube (CNT)-FET biosensor arrays to simultaneously block nonspecific adsorption and minimize Debye shielding effects, coupled with aptamer for antibiotics recognition through inkjet printing technology, which significantly improves the selectivity and sensitivity.
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