Recent Advances in Integrating 1D Nanomaterials into Chemiresistive Gas Sensor Devices

Abstract

There is rapid growth in the global gas sensor market driven by new regulations for industrial emission control and residential environments and increasing demand for portable devices. Nanosensors promise to be the next generation gas sensors for the direct detection of chemical species due to their ultrahigh sensitivity, fast response, ultralow weight, and low power consumption. However, transitioning nanosensors from basic research or prototype projects to commercial products encounters two major technical challenges: difficulty in scale up and inability to demonstrate real‐world use in changing humidity and temperature conditions. The advances in addressing these two technical challenges in recent literature are surveyed. The most common 1D nanomaterials in R&D for gas sensing, metal oxides, and carbon nanotubes, as well as less common metal nanowires and psudo‐1D crystals made from charge‐transfer complexes (CTCs) are included. This review delves into the specifics of each of these 1D nanomaterials for gas sensing applications, their synthesis and deposition, sensing performance, and commercial development in the last 5 years. It highlights the scalability of one‐step electrodeposition of CTC nanowires on prefabricated electrodes, at room temperature, and from solution in making gas nanosensors.

Biogenic amine sensors using organic π-conjugated materials as active sensing components and their commercialization potential

“…Many different types of device designs can be employed to realize electrochemical sensors, some of which include radio frequency identification (RFID) tags, 134,135 chemiresistors, 136,137 and transistors. 138,139 In the case of a RFID tag, the power source can be provided wirelessly by a cellular device, and therefore are appealing as one time use sensors in food packaging.…”

Metal–organic framework-derived metal oxides for resistive gas sensing: a review

“…85 1D nanomaterials are employed in a variety of industries, such as electronics, energy storage, and sensors. [86][87][88] 1D nanomaterials, due to their adjustable size, composition, and surface properties, present a promising opportunity for the advancement of next-generation sensors. [89][90][91] Various 1D MOF-derived metal oxides were employed as sensing materials for resistive gas sensors (see Table 1).…”

Preparation and Performance Analysis of 3D Thermoformed Fluidic Polymer Temperature Sensors for Aquatic and Terrestrial Applications

“…Average Hysteresis = ∑ n k=0 y k+1 − y k y max − y min (2) To verify the rapid response of the fabricated sensor, a transient response of more than five cycles is recorded, as shown in Figure 4c. The analysis of the transient response of two cycles, graphically represented in Figure 4d, divulges a noteworthy insight: the sensors demonstrate a rapid response time of 4 s for effecting a transition from 10% to 90% of their maximum value within the temperature span of 0 • C to 60 • C. The ensuing recovery phase, where the sensors revert to their initial values, registers a duration of 8 s. These temporal parameters align closely with those observed in advanced sensors highlighted within the scientific literature.…”

“…Polymer-based sensors hold considerable promise across industrial, clinical, and environmental applications due to their economical nature and straightforward fabrication processes [1][2][3][4][5][6][7][8][9][10][11][12][13]. They can be conveniently miniaturized and rendered disposable, all while being crafted from environmentally friendly and cost-effective substrates.…”