Results 341 to 350 of about 457,905 (387)

Edge‐Enriched Mo2TiC2Tx/MoS2 Heterostructure with Coupling Interface for Selective NO2 Monitoring

Advanced Functional Materials, 2022
Endowed with rich terminal groups, good electrical conductivity, and controllable structure, transition metal carbides/nitrides (MXenes) have attracted extensive attention for potential application in gas sensor, but long‐standing challenges of the ...
Qiuni Zhao, Wenzhe Zhou, Mingxiang Zhang, Yang Wang, Zaihua Duan, Chaoliang Tan, Bohao Liu, Fangping Ouyang, Zhentao Yuan, H. Tai, Yadong Jiang   +10 more
semanticscholar   +1 more source

Visible-Light-Activated Response Originating from Carrier-Mobility Modulation of NO2 Gas Sensors Based on MoS2 Monolayers.

ACS Nano, 2021
Some gas sensors exhibit significant increases in their sensitivity and response/recovery rates under light illumination. This photoactivation of the gas response is considered a promising alternative to conventional thermal activation, which requires ...
H. Tabata, Hiroaki Matsuyama, Taishi Goto, O. Kubo, M. Katayama   +4 more
semanticscholar   +1 more source

MoS2 Van der Waals p–n Junctions Enabling Highly Selective Room‐Temperature NO2 Sensor

Advanced Functional Materials, 2020
Van der Waals p–n junctions of 2D materials present great potential for electronic devices due to the fascinating properties at the junction interface.
Wei Zheng, Yongshan Xu, Lingli Zheng, Chen Yang, N. Pinna, Xianghong Liu, Jun Zhang   +6 more
semanticscholar   +1 more source

Roadside NO2/NOx and primary NO2 from individual vehicles

Atmospheric Environment, 2023
Traffic-derived nitrogen oxides (NOx) is a major component of kerbside pollution in large cities and represent an important source of exposure and health risk to urban populations, especially during the use of roadside pave-ments. The ratio of ambient NO2/NOx (xNO(2)) varies widely in urban environments, influenced by relative source strengths, but ...
Peter Brimblecombe, Mengyuan Chu, Chun-Ho Liu, Yunfei Fu, Peng Wei, Zhi Ning   +5 more
openaire   +2 more sources

SO2/NO2 Separation Driven by NO2 Dimerization on SSZ-13 Zeolite Membrane.

Journal of the American Chemical Society, 2022
The molecular state is crucial for precise gas separation using a zeolite membrane, yet the state control remains a big challenge. Herein, we report a NO2 dimerization facilitated high performance SO2/NO2 separation on a SSZ-13 zeolite membrane.
Ziyi Li, Jun Li, Huazhen Rong, Jiayu Zuo, Xiong Yang, Y. Xing, Yingshu Liu, G. Zhu, Xiaoqin Zou   +8 more
semanticscholar   +1 more source

AuPt Bimetal-Functionalized SnSe2 Microflower-Based Sensors for Detecting Sub-ppm NO2 at Low Temperatures.

ACS Applied Materials and Interfaces, 2021
A novel chemiresistive-type sensor for detecting sub-ppm NO2 has been fabricated using AuPt bimetal-decorated SnSe2 microflowers, which was synthesized by the hydrothermal treatment followed by in situ chemical reduction of the bimetal precursors on the ...
Wei Liu, D. Gu, Xiaogan Li
semanticscholar   +1 more source

MoS2-Based Optoelectronic Gas Sensor with Sub-parts-per-billion Limit of NO2 Gas Detection.

ACS Nano, 2019
Red light illumination with photon energy matching the direct band gap of chemical vapor deposition grown single-layer MoS2 with Au metal electrodes was used to induce a photocurrent which was employed instead of dark current for NO2 gas sensing.
Tung Pham, Guanghui Li, E. Bekyarova, M. Itkis, A. Mulchandani   +4 more
semanticscholar   +1 more source

Effects of Gas Adsorption Properties of an Au-Loaded Porous In2O3 Sensor on NO2-Sensing Properties.

ACS Sensors, 2021
Gas adsorption properties of semiconductor-type gas sensors using porous (pr-) In2O3 powders loaded with and without 0.5 wt % Au (Au/pr-In2O3 and pr-In2O3 sensors, respectively) at 100 °C were examined by using diffuse reflectance infrared Fourier ...
T. Ueda, I. Boehme, T. Hyodo, Y. Shimizu, U. Weimar, N. Bârsan   +5 more
semanticscholar   +1 more source

Electronic Structure and Geometry of NO2+ and NO2−

The Journal of Chemical Physics, 1969
The electronic structure of NO2+ and NO2− has been investigated as a function of angle by means of ab initio MO LCAO SCF wavefunctions. Atomic orbitals used in the basis set are close to free-atom Hartree–Fock solutions. Several excited states, in addition to the ground states, have been obtained for the two ions.
Gary V. Pfeiffer, Leland C. Allen
openaire   +1 more source

The HMO treatment of the ONO2, NNO2 and CNO2 groups

Tetrahedron, 1967
Abstract Parameters have been chosen for the coulomb and resonance integrals for the HMO treatment of the ONO 2 , NNO 2 and CNO 2 groups, which correctly predict values of the dipole moments of nitric esters, nitramines and aromatic C-nitro compounds.
openaire   +1 more source