Development of cost effective NO2 gas sensor based on V2O5 micro-flowers

Applicability of the MoS2–aSiC Heterostructure for Durable Supercapacitance and NO2 Gas Sensing in a Harsh Environment

“…Similarly, Wang et al demonstrated the stable supercapacitor performance of Ni x S y /MoS 2 hybrid nanomaterials with enhanced energy storage capability . Recently, materials such as carbon compounds, − transition-metal dichalcogenides, − ferromagnetic shape memory alloys, − perovskite materials, metal oxides, − nitrides, − carbides, two-dimensional (2D) conjugated metal–organic frameworks (c-MOFs), etc. have been widely used in various electronic devices.…”

Multifunctional Resistive Switching in a Magnetization-Graded Ni/NiMnIn/V2O5 Flexible Heterostructure toward Brain-Inspired Neuromorphic Computing

“…The introduction of two-dimensional materials in RS devices can resolve the above issues. V 2 O 5 is a two-dimensional (2D) transparent layered material with outstanding electrical, magnetic, optical, and structural characteristics. − As a result, they are extensively used in lithium-ion batteries, supercapacitors, gas sensors, solar cells, and photodetectors. Further, its layered structure makes it a viable material for next-generation flexible RRAM devices …”

Phenylalanine Dipeptide-Regulated Ag/In2O3 Nanocomposites for Enhanced NO2 Gas Sensing at Room Temperature with UV Illumination

“…Among various efforts, semiconducting metal oxide has been popular due to the simplicity of its fabrication and low cost. 4,5 At the time of this study, a growing number of metal oxides have been used in the detection of various gases, such as tin oxide (SnO 2 ), 6−8 titanium dioxide (TiO 2 ), 9,10 tungsten oxide (WO 3 ), 11 vanadium pentoxide (V 2 O 5 ), 12 and zinc oxide (ZnO). 1,13−15 Furthermore, indium oxide (In 2 O 3 ) has the advantage of being able to detect both reducing and oxidizing gases, 16−19 with a high sensitivity and fast response due to its high surface-to-volume ratio for gas species absorption/desorption and low-resistance pathways for charge carrier transport.…”

“…It is a major atmospheric pollutant that can cause serious health damage to humans, such as lung disease. , Therefore, the development of sensing materials for NO 2 sensors is of extreme importance, and, thus, many researchers have attempted to produce these materials. Among various efforts, semiconducting metal oxide has been popular due to the simplicity of its fabrication and low cost. , At the time of this study, a growing number of metal oxides have been used in the detection of various gases, such as tin oxide (SnO 2 ), − titanium dioxide (TiO 2 ), , tungsten oxide (WO 3 ), vanadium pentoxide (V 2 O 5 ), and zinc oxide (ZnO). ,− Furthermore, indium oxide (In 2 O 3 ) has the advantage of being able to detect both reducing and oxidizing gases, − with a high sensitivity and fast response due to its high surface-to-volume ratio for gas species absorption/desorption and low-resistance pathways for charge carrier transport. However, the oxygen molecules on In 2 O 3 surface grab electrons and become adsorbed oxygen (O 2 – , O – , O 2– ) for gas detection, which usually need to be at a temperature of 100–300 °C .…”