IEEE Sensors Journal, Год журнала: 2024, Номер 24(16), С. 25221 - 25226
Опубликована: Июль 11, 2024
Язык: Английский
Chemosphere, Год журнала: 2024, Номер 352, С. 141234 - 141234
Опубликована: Янв. 24, 2024
Язык: Английский
Процитировано
30
Accounts of Chemical Research, Год журнала: 2024, Номер 57(16), С. 2395 - 2413
Опубликована: Авг. 5, 2024
ConspectusGas sensors are used in various applications to sense toxic gases, mainly for enhanced safety. Resistive particularly popular owing their ability detect trace amounts of high stability, fast response times, and affordability. Semiconducting metal oxides commonly employed the fabrication resistive gas sensors. However, these often require working temperatures, bringing about increased energy consumption reduced selectivity. Furthermore, they do not have enough flexibility, performance is significantly decreased under bending, stretching, or twisting. To address challenges, alternative materials capable operating at lower temperatures with flexibility needed. Two-dimensional (2D) such as MXenes transition-metal dichalcogenides (TMDs) offer surface area conductivity unique 2D structure, making them promising candidates realization Nevertheless, sensing pristine form typically weak unacceptable, terms response, selectivity, recovery time (
Язык: Английский
Процитировано
25
Journal of Advanced Ceramics, Год журнала: 2024, Номер 13(9), С. 1461 - 1472
Опубликована: Авг. 5, 2024
The intensification of electromagnetic (EM) pollution and the development military detection technology have put forward higher requirements for EM functional materials. Herein, molybdenum diselenide@reduced graphene oxide (MoSe2@rGO) assembled architecture are constructed, where MoSe2 nanosheets grow uniformly on rGO sheets. By regulating contributions conduction genes polarization genes, adjustable functions MoSe2@rGO hybrids can be achieved. reflection loss sample reach −68.7 dB at a thickness 2.32 mm, maximum effective absorption bandwidth 5.04 GHz. When dominate, exhibit 98.7% interference (EMI) shielding efficiency. design energy conversion device results radar cross section (RCS) simulation demonstrate practical application potential material. This work provides inspiration designing multifunctional
Язык: Английский
Процитировано
18
Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 110863 - 110863
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
2
Synthetic Metals, Год журнала: 2025, Номер unknown, С. 117838 - 117838
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
ACS Sensors, Год журнала: 2025, Номер unknown
Опубликована: Март 2, 2025
Nitrogen dioxide (NO2) is considered to be a highly hazardous gas found in combustion engine exhaust, which causes several diseases at young age. To detect NO2 room temperature (RT), two-dimensional transition metal dichalcogenides play an essential role because of their greater surface-to-volume ratio. However, higher limit detection (LOD), slow response, and incomplete recovery kinetics hinder use efficient sensors. mitigate these issues, we fabricate facile robust niobium (Nb)-doped molybdenum disulfide (MoS2) sensor using low-pressure chemical vapor deposition on SiO2/Si substrate. Doping confirmed through various characterization techniques. As compared pristine MoS2, three batches sensors are prepared with different weight percentages Nb (8, 16, 24%). Out these, the 16% Nb-MoS2 gives greatly enhanced relative response ∼30% for 500 ppb 100 °C LOD 489 ppt. Also, ultrahigh ∼39% (18%) 50 ppm (500 ppb) under 0.4 mW/cm2 intensity UV light exhibits lower 117 ppt RT. In addition, shows impressive selectivity toward against range reducing oxidizing gases, along exceptional long-term durability stability. Based density functional theory calculations, comprehensive sensing mechanism proposed. The calculations focus identifying favorable sites adsorption nanoflakes. This study offers compelling practical approach boosting efficiency Nb-MoS2-based
Язык: Английский
Процитировано
1
Nanomaterials, Год журнала: 2024, Номер 14(7), С. 633 - 633
Опубликована: Апрель 5, 2024
Significant progress has been made in two-dimensional material-based sensing devices over the past decade. Organic vapor sensors, particularly those using graphene and transition metal dichalcogenides as key components, have demonstrated excellent sensitivity. These sensors are highly active because all atoms ultra-thin layers exposed to volatile compounds. However, their selectivity needs improvement. We propose a novel gas-sensing device that addresses this challenge. It consists of two side-by-side fabricated from same material, few-layer molybdenum disulfide (MoS₂), for detecting organic compounds like alcohol, acetone, toluene. To create dual-channel sensor, we introduce simple step into conventional 2D material sensor fabrication process. This involves treating one-half MoS₂ ultraviolet–ozone (UV-O3) treatment. The responses pristine 3000 ppm ethanol, toluene gases 18%, 3.5%, 49%, respectively. UV-O3-treated MoS₂-based show 13.4%, 3.1%, 6.7%, demonstrates 7-fold improvement gas against ethanol acetone. Our work sheds light on understanding surface processes interaction mechanisms at interface between compounds, leading enhanced sensitivity selectivity.
Язык: Английский
Процитировано
7
Nanoscale, Год журнала: 2024, Номер 16(14), С. 7134 - 7144
Опубликована: Янв. 1, 2024
The electronic properties of MoSe 2 nanowrinkles are simulated from first principles. Wave-function distributions and effective masses analyzed to disclose the potential such systems for charge transport optoelectronics.
Язык: Английский
Процитировано
4
Materials Chemistry and Physics, Год журнала: 2024, Номер 326, С. 129802 - 129802
Опубликована: Авг. 3, 2024
Язык: Английский
Процитировано
4
The Journal of Physical Chemistry Letters, Год журнала: 2024, Номер unknown, С. 10307 - 10313
Опубликована: Окт. 4, 2024
Metal sulfides have been extensively studied in the field of chemical sensors working at room temperature (RT). However, compared to metal oxides, often suffer from incomplete recovery and unsatisfactory selectivity. In this work, we for first time report high-entropy sulfide (HES) (FeCoNiCrMn)S
Язык: Английский
Процитировано
4