Potentiometric CO sensors using anion-conducting polymer electrolyte: Effects of the kinds of noble metal-loaded metal oxides as sensing-electrode materials on CO-sensing properties

Hyodo, Takeo; Takamori, Mari; Goto, Toshiyuki; Ueda, Taro; Shimizu, Yasuhiro

doi:10.1016/j.snb.2019.02.036

Cited by 30 publications

(15 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, we focus on noble metal-based catalytic materials, i.e., atomic gold. It has been reported that novel sensing materials, such as noble metal nanoclusters [ 1 ] and metal oxides [ 2 , 3 ], show interesting catalytic properties. With noble metal nanoclusters, it has been demonstrated that while bulk metal electrode exhibits some catalytic activity, the activity is greatly enhanced when bulk metal is reduced to nanocluster size [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Indirect Sensing of Lower Aliphatic Ester Using Atomic Gold Decorated Polyaniline Electrode

Chakraborty

Chien

Chang

et al. 2020

Sensors

View full text Add to dashboard Cite

Novel sensing materials have been formed by decorating polyaniline conducting polymers with atomic gold clusters where the number of atoms is precisely defined. Such materials exhibit unique electrocatalytic properties of electrooxidation to aliphatic alcohols, although analytes with other functional groups have not been studied. This paper reports a study of cyclic voltammetric patterns obtained with bi-atomic gold nanocomposite response to analytes with other functional groups for sensor applications. Principal component analysis shows separation among normal-propanol, iso-propanol and ethyl formate/ethanol groups. Indirect sensing of ethyl formate is demonstrated by electrooxidation of the product upon hydrolysis in alkaline medium. Voltammograms of ethyl formate are studied in gaseous phases.

show abstract

Section: Introductionmentioning

confidence: 99%

Indirect Sensing of Lower Aliphatic Ester Using Atomic Gold Decorated Polyaniline Electrode

Chakraborty

Chien

Chang

et al. 2020

Sensors

View full text Add to dashboard Cite

show abstract

“…Metal oxide-based gas sensors are extensively researched and are used widely for detecting volatile organic compounds (VOCs), NO 2 , CO, H 2 , H 2 S, etc., due to easy manufacture, low cost, and high sensing response. − As a primary sensing material, ZnO nanostructures are used widely to detect toxic, flammable, and explosive gases. These ZnO nanostructures include, but are not limited to, nanoparticles, nanorods, nanowires, nanosheets, as well as flowerlike and nestlike hierarchical structures .…”

Section: Introductionmentioning

confidence: 99%

Porous ZnO Ultrathin Nanosheets with High Specific Surface Areas and Abundant Oxygen Vacancies for Acetylacetone Gas Sensing

Liu

Wang

Chen

et al. 2019

ACS Appl. Mater. Interfaces

112

View full text Add to dashboard Cite

In this study, porous ZnO ultrathin nanosheets with abundant surface oxygen vacancies were prepared by a hydrothermal technique followed by an annealing method using graphene oxide (GO) as a template. The high specific surface area of GO with ultrathin thickness provided an important template for the ZnO ultrathin nanosheets. The as-prepared porous ZnO ultrathin nanosheets exhibited superior acetylacetone sensing performance. The sensor response of the porous ZnO ultrathin nanosheets was 191.1 for 100 ppm acetylacetone, which was approximately 4 times higher than that of ZnO clusters (prepared without GO template) at 340 °C. The porous ZnO ultrathin nanosheets also exhibited excellent selectivity and operational stability. The excellent gas sensing performance of the porous ZnO ultrathin nanosheets was due to their high specific surface area (130.5 m2/g) and abundant surface oxygen vacancy.

show abstract

“…These electrodes return a linear current response as a function of gas concentration [9,22] . To improve the properties of gas sensors, noble metal electrodes are often used and give excellent results [23][24][25].…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Gas sensing based on organic composite materials: Review of sensor types, progresses and challenges

Nasri

Pétrissans

Fierro

2021

Materials Science in Semiconductor Processing

View full text Add to dashboard Cite

Over the past decade, organic semiconductors and renewable resources have aroused great interest in basic research and practical applications. Composites based on organic materials and materials of biological origin, if not all bio-based, are potentially abundant and partly biodegradable. These materials have demonstrated advantages making them ideally suited for gas-sensing applications. Herein, we present different detection principles of gas sensing, such as electrochemical, resistive, capacitive, and acoustic sensors. Besides, we describe sensing properties and suitable materials to enhance the selectivity, sensitivity and response/recovery time of gas sensors. In addition, an overview of different forms of materials based on renewable resources and inorganic/organic semiconductors, as well as the development of different types of sensors are discussed. Finally, challenges and future directions are examined in order to develop a low-cost microscale sensing technology using composite materials based on renewable resources. We anticipate that chemical engineering, computer science, machine learning and embedded systems can contribute to the development of new sensing materials.

show abstract

Potentiometric CO sensors using anion-conducting polymer electrolyte: Effects of the kinds of noble metal-loaded metal oxides as sensing-electrode materials on CO-sensing properties

Cited by 30 publications

References 37 publications

Indirect Sensing of Lower Aliphatic Ester Using Atomic Gold Decorated Polyaniline Electrode

Indirect Sensing of Lower Aliphatic Ester Using Atomic Gold Decorated Polyaniline Electrode

Porous ZnO Ultrathin Nanosheets with High Specific Surface Areas and Abundant Oxygen Vacancies for Acetylacetone Gas Sensing

Gas sensing based on organic composite materials: Review of sensor types, progresses and challenges

Contact Info

Product

Resources

About