The highest occupied molecular orbital (HOMO) energies of carbon nanotubes (CNTs) and graphene are crucial in fundamental and applied research of carbon nanomaterials, and so their modulation is desired. Our first-principles calculations reveal that the HOMO energies of CNTs and graphene can both be raised by negatively charging, and that the rate of increase of the HOMO energy of a CNT is much greater and faster than that of graphene with the same number of C atoms. This discriminative modulation holds true regardless of the number of C atoms and the CNT type, and so is universal. This work provides a new opportunity to develop all-carbon devices with CNTs and graphene as different functional elements.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c4cp05418k | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surface interactions of gelatin-sourced carbon quantum dots with a model globular protein: insights into carbon-based nanomaterials and biological systems.
Nanoscale Adv
December 2024
The Department of Chemistry & Biochemistry, The University of Texas at El Paso 500 W. University Ave. El Paso TX 79968 USA
Carbon nanomaterials (CNMs), such as carbon nanotubes (CNTs), graphene quantum dots (GQDs), and carbon quantum dots (CQDs), are prevalent in biological systems and have been widely utilized in applications like environmental sensing and biomedical fields. While their presence in human matrices is projected to increase, the interfacial interactions between carbon-based nanoscopic platforms and biomolecular systems continue to remain underexplored. In this study, we investigated the effect of gelatin-sourced CQDs on the globular milk protein beta-lactoglobulin (BLG).
View Article and Find Full Text PDFSynthesis of 2D NiCo-MOF/GO/CNTs flexible films for high-performance supercapacitors.
Soft Matter
January 2025
Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China.
Article Synopsis
- Researchers developed flexible hybrid films using nickel-cobalt metal-organic frameworks (2D NiCo-MOF), graphene oxide (GO), and carbon nanotubes (CNTs) as supercapacitor electrode materials via vacuum filtration.
- The optimal mass ratio of these materials is 2:1:0.5, leading to a high specific capacitance of 40.3 F/g and impressive cycling stability, with 82.8% capacitance retention after 5000 cycles.
- The films maintain flexibility even after multiple bends and can power an LED when connected in series, showcasing their practical application potential.
Ultrafine metal-organic framework @ graphitic carbon with MoS-CNTs nanocomposites as carbon-based electrochemical sensor for ultrasensitive detection of catechin in beverages.
Mikrochim Acta
December 2024
Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China.
GO/Co-MOF/PPy-350 (GPC-350) was synthesized by in situ growth of ultrafine Co-MOF on graphene oxide (GO), followed by encapsulation with polypyrrole (PPy) and calcination at 350.0℃. Meanwhile, MoS-MWCNTs (MoS-CNTs) were produced via the in situ synthesis of MoS within multi-walled carbon nanotubes (MWCNTs).
View Article and Find Full Text PDFPressure-Induced Assembly of Organic Phase-Change Materials Hybridized with Expanded Graphite and Carbon Nanotubes for Direct Solar Thermal Harvesting and Thermoelectric Conversion.
Nanomaterials (Basel)
December 2024
State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China.
Direct harvesting of abundant solar thermal energy within organic phase-change materials (PCMs) has emerged as a promising way to overcome the intermittency of renewable solar energy and pursue high-efficiency heating-related applications. Organic PCMs, however, generally suffer from several common shortcomings including melting-induced leakage, poor solar absorption, and low thermal conductivity. Compounding organic PCMs with single-component carbon materials faces the difficulty in achieving optimized comprehensive performance enhancement.
View Article and Find Full Text PDFPoint-of-Care Detection of Carcinoembryonic Antigen (CEA) Using a Smartphone-Based, Label-Free Electrochemical Immunosensor with Multilayer CuONPs/CNTs/GO on a Disposable Screen-Printed Electrode.
Biosensors (Basel)
December 2024
Research Laboratory for Analytical Instrument and Electrochemistry Innovation, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
In order to identify carcinoembryonic antigen (CEA) in serum samples, an innovative smartphone-based, label-free electrochemical immunosensor was created without the need for additional labels or markers. This technology presents a viable method for on-site cancer diagnostics. The novel smartphone-integrated, label-free immunosensing platform was constructed by nanostructured materials that utilize the layer-by-layer (LBL) assembly technique, allowing for meticulous control over the interface.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!