Themed collection Gas sensing

23 items
Open Access Review Article

Magnetic gas sensing: working principles and recent developments

In magnetic gas sensors, the change in the magnetic properties of the active materials is measured. In this review article, the working principles, fundamentals, recent developments, and future perspectives in magnetic gas sensors are reviewed.

Graphical abstract: Magnetic gas sensing: working principles and recent developments
From the themed collection: Recent Review Articles
Open Access Review Article

Micro/nanostructured gas sensors: the physics behind the nanostructure growth, sensing and selectivity mechanisms

Research focus on control growth of nanostructures, understanding of sensing mechanism through band model, LUMO energy, defect state density. Further, role of electrode for sensing and substrate for devices reliability has been discussed.

Graphical abstract: Micro/nanostructured gas sensors: the physics behind the nanostructure growth, sensing and selectivity mechanisms
From the themed collection: Recent Review Articles
Open Access Review Article

Gas sensors using ordered macroporous oxide nanostructures

Summary and perspective on gas-sensing applications of ordered macroporous oxide nanostructures have been outlined in this review.

Graphical abstract: Gas sensors using ordered macroporous oxide nanostructures
From the themed collection: Recent Review Articles
Open Access Communication

Simple and rapid gas sensing using a single-walled carbon nanotube field-effect transistor-based logic inverter

We design a gas sensor by combining two SWCNT-FET devices in an inverter configuration enabling a better system miniaturization together with a reduction of power consumption and ease of data processing.

Graphical abstract: Simple and rapid gas sensing using a single-walled carbon nanotube field-effect transistor-based logic inverter
Open Access Communication

Boron nanostructures obtained via ultrasonic irradiation for high performance chemiresistive methane sensors

Boron nanostructures obtained via a top-down approach can be efficiently used as the receptor in chemiresistive methane gas sensors.

Graphical abstract: Boron nanostructures obtained via ultrasonic irradiation for high performance chemiresistive methane sensors
Open Access Communication

Carbon dots derived from algae as H2O2 sensors: the importance of nutrients in biomass

Effect of mineral nutrients in biomass was found to be crucial in the synthesized carbon dots, affecting their dispersibility, PL stability and crystallinity.

Graphical abstract: Carbon dots derived from algae as H2O2 sensors: the importance of nutrients in biomass
From the themed collection: Quantum and carbon dots
Open Access Paper

Three-dimensional porous SERS powder for sensitive liquid and gas detections fabricated by engineering dense “hot spots” on silica aerogel

A 3D porous SERS powder was developed in this study. Highly sensitive and homogeneous SERS detections on liquid and gas have been achieved, demonstrating potential application for an artificial “nose”.

Graphical abstract: Three-dimensional porous SERS powder for sensitive liquid and gas detections fabricated by engineering dense “hot spots” on silica aerogel
From the themed collection: Popular Advances
Open Access Paper

Boosting the performance of NO2 gas sensors based on n–n type mesoporous ZnO@In2O3 heterojunction nanowires: in situ conducting probe atomic force microscopic elucidation of room temperature local electron transport

This study emphasis on the effect of n–n heterojunctions in ZnO@In2O3 nanowires on boosting NO2 sensing properties and elucidate the local electron transport properties during sensing process at room-temperature by in situ Conducting Probe Atomic Force Microscopy.

Graphical abstract: Boosting the performance of NO2 gas sensors based on n–n type mesoporous ZnO@In2O3 heterojunction nanowires: in situ conducting probe atomic force microscopic elucidation of room temperature local electron transport
Open Access Paper

Hydrogen gas sensing using aluminum doped ZnO metasurfaces

Hydrogen (H2) sensing is crucial in a wide variety of areas, such as industrial, environmental, energy and biomedical applications. In this work, aluminum-doped zinc oxide (AZO) nanotubes are reported for optical hydrogen sensing.

Graphical abstract: Hydrogen gas sensing using aluminum doped ZnO metasurfaces
Open Access Paper

Gelation of uranyl ions and gel-derived uranium oxide nanoparticles for gas sensing

Gas sensing uranium oxide nanoparticles were synthesized by microwave reaction based on uranyl-ethylene-glycol gel.

Graphical abstract: Gelation of uranyl ions and gel-derived uranium oxide nanoparticles for gas sensing
Open Access Paper

A novel application of nanoporous gold to humidity sensing: a framework for a general volatile compound sensor

In this work, we leverage changes in the electronic properties of electrochemically dealloyed nanoporous gold to sense environmental humidity.

Graphical abstract: A novel application of nanoporous gold to humidity sensing: a framework for a general volatile compound sensor
Open Access Paper

Zirconia nanocomposites with carbon and iron(III) oxide for voltammetric detection of sub-nanomolar levels of methyl parathion

This study reports the synthesis of zirconia nanoparticles loaded on various carbon substrates, namely, reduced graphene oxide (Zr-r-GO), carbon nanotubes (Zr-CNT), and activated carbon (Zr-AC).

Graphical abstract: Zirconia nanocomposites with carbon and iron(iii) oxide for voltammetric detection of sub-nanomolar levels of methyl parathion
Open Access Paper

Enhanced chemiresistive sensing performance of well-defined porous CuO-doped ZnO nanobelts toward VOCs

Due to the synergic effect between the electron depletion layer and the local hole accumulation layer at the p–n junctions of CuO|ZnO heterointerfaces, well-defined porous CuO-doped ZnO nanobelts exhibit an excellent sensing performance toward VOCs.

Graphical abstract: Enhanced chemiresistive sensing performance of well-defined porous CuO-doped ZnO nanobelts toward VOCs
Open Access Paper

Using evolved gas analysis – mass spectrometry to characterize adsorption on a nanoparticle surface

EGA-MS is presented as an experimental technique to characterize the surface of LnF3 nanoparticles as a complementary approach to surface chemistry.

Graphical abstract: Using evolved gas analysis – mass spectrometry to characterize adsorption on a nanoparticle surface
Open Access Paper

Ligand-free all-inorganic metal halide nanocubes for fast, ultra-sensitive and self-powered ozone sensors

Quick and cost-effective fabrication of metal-halide nanostructure ozone sensors.

Graphical abstract: Ligand-free all-inorganic metal halide nanocubes for fast, ultra-sensitive and self-powered ozone sensors
Open Access Paper

Vapour sensing properties of graphene-covered gold nanoparticles

A corrugated graphene overlayer can increase the sensitivity and selectivity of local surface plasmon resonance-based vapour sensing with gold nanoparticles.

Graphical abstract: Vapour sensing properties of graphene-covered gold nanoparticles
Open Access Paper

CdS nanodroplets over silica microballs for efficient room-temperature LPG detection

An LPG sensor operating at RT was fabricated with the morphology of CdS nanodroplets over silica microballs.

Graphical abstract: CdS nanodroplets over silica microballs for efficient room-temperature LPG detection
Open Access Paper

A highly sensitive printed humidity sensor based on a functionalized MWCNT/HEC composite for flexible electronics application

Fully printed, functionalized multi-walled carbon nanotube (FMWCNT)/hydroxyethyl cellulose (HEC) composite-based humidity sensor.

Graphical abstract: A highly sensitive printed humidity sensor based on a functionalized MWCNT/HEC composite for flexible electronics application
From the themed collection: National Nanotechnology Day
Open Access Paper

Highly sensitive and room temperature detection of ultra-low concentrations of O3 using self-powered sensing elements of Cu2O nanocubes

The fundamental development of the design of novel self-powered ozone sensing elements, operating at room temperature, based on p-type metal oxides paves the way to a new class of low cost, highly promising gas sensing devices.

Graphical abstract: Highly sensitive and room temperature detection of ultra-low concentrations of O3 using self-powered sensing elements of Cu2O nanocubes
Open Access Paper

Porous reduced graphene oxide (rGO)/WO3 nanocomposites for the enhanced detection of NH3 at room temperature

Incorporation of reduced graphene oxide (rGO) modifies the properties of semiconducting metal oxide nanoparticles and makes it possible to tune the surface area and pore size to optimum values, which in turn improves their gas sensing properties.

Graphical abstract: Porous reduced graphene oxide (rGO)/WO3 nanocomposites for the enhanced detection of NH3 at room temperature
Open Access Paper

The critical role of hydroxyl groups in water vapor sensing of graphene oxide

The present study provides a significant conceptual advance in graphene oxide based humidity sensors. It is found that sensor response is directly dependent on the amount of OH groups. The proposed strategy to control OH in this report can make significant impact on the development of future smart GO-based humidity sensors and should be applicable to other gases.

Graphical abstract: The critical role of hydroxyl groups in water vapor sensing of graphene oxide
Open Access Paper

A ZnO/porous GaN heterojunction and its application as a humidity sensor

A new humidity sensor based on a heterojunction of ZnO/PGAN is fabricated by a simple spraying process and the heterojunction can be directly applied to a diode-type humidity sensor.

Graphical abstract: A ZnO/porous GaN heterojunction and its application as a humidity sensor
Open Access Paper

Rh-doped MoSe2 as a toxic gas scavenger: a first-principles study

Using first-principles theory, we investigated the most stable configuration for the Rh dopant on a MoSe2 monolayer, and the interaction of the Rh-doped MoSe2 (Rh-MoSe2) monolayer with four toxic gases (CO, NO, NO2 and SO2) to exploit the potential application of the Rh-MoS2 monolayer as a gas sensor or adsorbent.

Graphical abstract: Rh-doped MoSe2 as a toxic gas scavenger: a first-principles study
23 items

About this collection

This topical collection highlights nanoscale-based research on gas sensing recently published in Nanoscale Advances. The collection includes reviews exploring overall progress in gas sensing techniques and methods, and original research showcasing the latest thinking on the synthesis, applications and properties of gas sensors.


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