scholarly journals Probing luminescent Fe-doped ZnO nanowires for high-performance oxygen gas sensing application

RSC Advances ◽  
2014 ◽  
Vol 4 (98) ◽  
pp. 54953-54959 ◽  
Author(s):  
Rishi Vyas ◽  
Pawan Kumar ◽  
Jaya Dwivedi ◽  
Sarla Sharma ◽  
Shabana Khan ◽  
...  
Keyword(s):  
High Performance ◽  
Gas Sensing ◽  
Synthesis Method ◽  
Vapour Phase ◽  
Zno Nanowires ◽  
Oxygen Gas ◽  
Doped Zno ◽  
Sensing Application ◽  
Vapour Phase Transport ◽  
Phase Transport

Successful demonstration of Fe-doped ZnO nanowires using a facile vapour phase transport synthesis method for high-performance oxygen gas sensing application.

Vapour phase transport growth and characterization of ZnO nanowires

2014 ◽  
Author(s):  
B. V. Shrisha ◽  
Shashidhar Bhat ◽  
K. Gopalakrishna Naik
Keyword(s):  
Vapour Phase ◽  
Zno Nanowires ◽  
Vapour Phase Transport ◽  
Phase Transport

scholarly journals Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 372
Author(s):  
Liyang Lin ◽  
Susu Chen ◽  
Tao Deng ◽  
Wen Zeng
Keyword(s):  
Energy Storage ◽  
Gas Sensors ◽  
High Performance ◽  
Gas Sensing ◽  
Synthesis Method ◽  
Rate Capability ◽  
Stannic Oxide ◽  
Energy Storage Devices ◽  
Graphene Nanocomposites ◽  
Storage Devices

The metal oxides/graphene nanocomposites have great application prospects in the fields of electrochemical energy storage and gas sensing detection. However, rational synthesis of such materials with good conductivity and electrochemical activity is the topical challenge for high-performance devices. Here, SnO2/graphene nanocomposite is taken as a typical example and develops a universal synthesis method that overcome these challenges and prepares the oxygen-deficient SnO2 hollow nanospheres/graphene (r-SnO2/GN) nanocomposite with excellent performance for supercapacitors and gas sensors. The electrode r-SnO2/GN exhibits specific capacitance of 947.4 F g−1 at a current density of 2 mA cm−2 and of 640.0 F g−1 even at 20 mA cm−2, showing remarkable rate capability. For gas-sensing application, the sensor r-SnO2/GN showed good sensitivity (~13.8 under 500 ppm) and short response/recovering time toward methane gas. These performance features make r-SnO2/GN nanocomposite a promising candidate for high-performance energy storage devices and gas sensors.

scholarly journals Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4425
Author(s):  
Ana María Pineda-Reyes ◽  
María R. Herrera-Rivera ◽  
Hugo Rojas-Chávez ◽  
Heriberto Cruz-Martínez ◽  
Dora I. Medina
Keyword(s):  
Carbon Monoxide ◽  
High Performance ◽  
Gas Sensing ◽  
Experimental Studies ◽  
Electrical Performance ◽  
Long Term Stability ◽  
Sensing Applications ◽  
Recent Advances ◽  
Sensitivity And Selectivity ◽  
Doped Zno

Monitoring and detecting carbon monoxide (CO) are critical because this gas is toxic and harmful to the ecosystem. In this respect, designing high-performance gas sensors for CO detection is necessary. Zinc oxide-based materials are promising for use as CO sensors, owing to their good sensing response, electrical performance, cost-effectiveness, long-term stability, low power consumption, ease of manufacturing, chemical stability, and non-toxicity. Nevertheless, further progress in gas sensing requires improving the selectivity and sensitivity, and lowering the operating temperature. Recently, different strategies have been implemented to improve the sensitivity and selectivity of ZnO to CO, highlighting the doping of ZnO. Many studies concluded that doped ZnO demonstrates better sensing properties than those of undoped ZnO in detecting CO. Therefore, in this review, we analyze and discuss, in detail, the recent advances in doped ZnO for CO sensing applications. First, experimental studies on ZnO doped with transition metals, boron group elements, and alkaline earth metals as CO sensors are comprehensively reviewed. We then focused on analyzing theoretical and combined experimental–theoretical studies. Finally, we present the conclusions and some perspectives for future investigations in the context of advancements in CO sensing using doped ZnO, which include room-temperature gas sensing.

Cl-Doped ZnO Nanowires with Metallic Conductivity and Their Application for High-Performance Photoelectrochemical Electrodes

2014 ◽  
Vol 6 (2) ◽  
pp. 1288-1293 ◽  
Author(s):  
Fei Wang ◽  
Jung-Hun Seo ◽  
Zhaodong Li ◽  
Alexander V. Kvit ◽  
Zhenqiang Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Zno Nanowires ◽  
Metallic Conductivity ◽  
Doped Zno

Notizen: The Crystal Structure of MnIn2Se4, a Ternary Layered Semiconductor

1991 ◽  
Vol 46 (8) ◽  
pp. 1122-1124 ◽  
Author(s):  
K.-J. Range ◽  
U. Klement ◽  
G. Döll ◽  
E. Bucher ◽  
J. R. Baumann
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Layered Structure ◽  
Chemical Vapour ◽  
Vapour Phase ◽  
Tetrahedral Coordination ◽  
Layered Semiconductor ◽  
Vapour Phase Transport ◽  
Phase Transport ◽  
Transport Technique

Single crystals of MnIn2Se4 have been grown by the chemical vapour phase transport technique using AlCl3 as the transporting agent. The structure was refined to R = 0.064, Rw, = 0.059 for 609 reflections. MnIn2Se4 (R 3̄m, hexagonal axes a = 4.051(1), c = 39.464(2) Å, c/a = 9.74, Z = 3) crystallizes with a nearly close-packed layered structure (sequence of the Se layers ABCA|CABC|BCAB) with Moct (= 0.56 Mn + 0.44 In) in octahedral coordination (Moct,–Se = 6 × 2.721(1) A) and Mtet (= 0.78 In + 0.22 Mn) in tetrahedral coordination (Mtet-Se = 1 × 2.527(2) and 3 × 2.593(1) Å). The overall layer sequences is ΑβΒαCyA| Cα AγBβC| BγCβAα B.

Ag-Doped ZnO Nanoparticles for Enhanced Ethanol Gas Sensing Application

2018 ◽  
Vol 18 (5) ◽  
pp. 3557-3562 ◽  
Author(s):  
Ahmad Umar ◽  
M. Ajmal Khan ◽  
Rajesh Kumar ◽  
H Algarni
Keyword(s):  
Zno Nanoparticles ◽  
Gas Sensing ◽  
Doped Zno ◽  
Sensing Application
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