In present investigation, we report humidity dependent electrical properties of molybdenum disulphide (MoS₂) nanosheets. MoS₂ nanosheets were prepared through a facile hydrothermal method with different reaction temperatures. The as-synthesized MoS₂ nanosheets were characterized with XRD, SEM, TEM, and Raman spectroscopy, which confirmed successful preparation and rationality. Further, the humidity dependent electrical properties against relative humidity (RH) of these samples were carried out at room temperature. The results evinced that the sensors film fabricated with MoS₂ nanosheets prepared at temperature 220 °C exhibited better performance compared to the nanosheets synthesized at 180 °C and 200 °C temperature. The RH sensing results exhibits highly sensitive, ultrafast response/recovery behaviour and outstanding repeatability than reported earlier. The excellent humidity sensing properties of the resultant MoS₂ nanosheets was proved to be an excellent candidate for constructing ultrahigh-performance humidity sensor toward various applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1166/jnn.2019.16828 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ionic liquid-delaminated TiC MXene nanosheets for enhanced electrocatalytic oxidation of tryptophane in normal and breast cancer serum.
Mikrochim Acta
January 2025
Department of Chemistry, Faculty of Basic Sciences, Ayatollah Boroujerdi University, Boroujerd, Iran.
A cost-effective strategy is reported utilizing ionic liquid (IL), 1-hexyl-3-methylimidazolium bisulfate ([HMIM] HSO), to delaminate TiC MXene, thereby enhancing its efficiency in electrocatalyzing tryptophan (Trp) oxidation. The positively charged IL effectively intercalates within the negatively charged MXene layers, fostering structural stability through π-π stacking and electrostatic interactions. Consequently, the resulting IL-TiC composite not only maintained the inherent electronic conductivity of TiC but also significantly augmented its electrocatalytic prowess.
View Article and Find Full Text PDFNanomedicine-enabled concurrent regulations of ROS generation and copper metabolism for sonodynamic-amplified tumor therapy.
Biomaterials
January 2025
State Key Laboratory of High-performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences (2021RU012), Shanghai, 200050, PR China. Electronic address:
Sonodynamic therapy (SDT) shows substantial potentials in cancer treatment thanks to the deep tissue penetration of ultrasound. However, its clinical translation suffers from the potential damages to healthy tissues and the resistance of tumors, particularly from cancer stem-like cells (CSCs), to the ultrasound. To address these challenges, we designed a novel glutathione (GSH)-activated nanomedicine to simultaneously enhance the safety and efficacy of SDT by in situ regulating the generation of reactive oxygen species (ROS) and copper metabolism.
View Article and Find Full Text PDFRapid Electrochemical Uranium Extraction from Real Seawater via the Intermediate of Vacancy-Trapped Isolated Uranyl.
Inorg Chem
January 2025
State Key Laboratory of Environment-friendly Energy Materials, School of National Defence Science & Technology, Nuclear Waste and Environmental Safety Key Laboratory of Defense, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China.
Electrochemical uranium extraction from seawater is a vital project for the sustainable development of the nuclear industry, which requires selective intrinsic binding sites for uranyl. In this work, oxygen vacancies (O vacancies) were developed as an atomically identified confinement for uranyl, and thus, rapid uranium extraction from seawater was achieved. In a short period of 700 s, InO nanosheets with rich O vacancies (V-rich InO nanosheets) exhibited a high extraction efficiency of 88.
View Article and Find Full Text PDFUnique hierarchical NiFe-LDH/Ni/NiCoS heterostructure arrays on nickel foam for the improvement of overall water splitting activity.
Nanoscale
January 2025
Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing, 401331, PR China.
The development of environmentally friendly, high-efficiency, stable, earth-abundant and non-precious metal-based electrocatalysts with fast kinetics and low overpotential for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is of exceeding significance but still challenging. Herein, a bifunctional electrode of unique hierarchical NiFe-LDH/Ni/NiCoS/NF (NiFe-LDH = nickel-iron layered double hydroxide and NF = nickel foam) electrocatalytic architecture, which is built up from NiFe-LDH nanosheets, Ni nanoparticles and NiCoS nanoneedles sequentially arrayed on a porous NF substrate, has been prepared by a facile hydrothermal and electrodeposition method. This electrocatalytic architecture is binder-free and its outer NiFe-LDH nanosheets can effectively prevent the oxidation of inner Ni nanoparticles and corrosion of NiCoS nanoneedles during water electrolysis.
View Article and Find Full Text PDFBioinspired Chestnut Burr-like Polyaniline: Achieving Superhydrophobicity and Excellent Microwave Transparency through Controlled Polymerization.
ACS Appl Mater Interfaces
January 2025
Department of Materials Science and Engineering, Beijing Technology and Business University, Beijing 100048, PR China.
Achieving dual functionalities of hydrophobicity and excellent microwave transmission in a single material remains a significant challenge, especially for advanced applications in aerospace, telecommunications, and navigation engineering. Inspired by natural designs like chestnut burrs, bioinspired polyaniline (PANI) particles with tunable micro-/nanostructures through a facile template-free polymerization process have been developed. By regulating the polarity of the reaction system, temperature, and reaction time, various hierarchical structures, including cross-linked nanosheets, chestnut burr-like spheres, and starburst flower-like structures, are synthesized.
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!