Electrical behaviour of fractal nanosized tin dioxide films prepared by electrodeposition for gas sensing applications

Kante, I.; Devers, Thierry; Harba, Rachid; Andreazza‐Vignolle, C.; Andreazza, Pascal

doi:10.1016/j.mejo.2005.04.036

Cited by 11 publications

(2 citation statements)

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“…The obtained films exhibited fractal features [ 43 ]. In another study, Kante et al prepared SnO 2 films with fractal morphology by an electrochemical method with a subsequent oxidation process [ 68 ]. Both groups tested the films for CO gas sensing at different temperatures.…”

Section: Reviewmentioning

confidence: 99%

Morphology-driven gas sensing by fabricated fractals: A review

Kamathe

Nagar

2021

Beilstein J. Nanotechnol.

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Fractals are intriguing structures that repeat themselves at various length scales. Interestingly, fractals can also be fabricated artificially in labs under controlled growth environments and be explored for various applications. Such fractals have a repeating unit that spans in length from nano- to millimeter range. Fractals thus can be regarded as connectors that structurally bridge the gap between the nano- and the macroscopic worlds and have a hybrid structure of pores and repeating units. This article presents a comprehensive review on inorganic fabricated fractals (fab-fracs) synthesized in labs and employed as gas sensors across materials, morphologies, and gas analytes. The focus is to investigate the morphology-driven gas response of these fab-fracs and identify key parameters of fractal geometry in influencing gas response. Fab-fracs with roughened microstructure, pore-network connectivity, and fractal dimension (D) less than 2 are projected to be possessing better gas sensing capabilities. Fab-fracs with these salient features will help in designing the commercial gas sensors with better performance.

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Section: Reviewmentioning

confidence: 99%

Morphology-driven gas sensing by fabricated fractals: A review

Kamathe

Nagar

2021

Beilstein J. Nanotechnol.

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“…Three-dimensional (3D) printing, as an advanced additive manufacturing technique, has demonstrated its superiority in fabricating intricate structures with exceptional precision. − It enables near-net-shape forming, mold-free production, and customized design, − and it has found widespread application in creating functional materials and intricate devices. , Considering the multifaceted physical and chemical interactions involved in gas sensing, such as gas adsorption/desorption and aerodynamics-related processes, , which are contingent upon material structures and device configurations, , 3D printing offers unparalleled capabilities in manufacturing such complex devices. In contrast to conventional coating or molding methods, , it affords flexibility in real-time structural adjustments, without being limited by molds or processing conditions in terms of complexity and accuracy.…”

Section: Introductionmentioning

confidence: 99%

Programmable and Modularized Gas Sensor Integrated by 3D Printing

Zhou,

Zhao,

Xun

et al. 2024

Chem. Rev.

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The rapid advancement of intelligent manufacturing technology has enabled electronic equipment to achieve synergistic design and programmable optimization through computer-aided engineering. Three-dimensional (3D) printing, with the unique characteristics of near-net-shape forming and mold-free fabrication, serves as an effective medium for the materialization of digital designs into usable devices. This methodology is particularly applicable to gas sensors, where performance can be collaboratively optimized by the tailored design of each internal module including composition, microstructure, and architecture. Meanwhile, diverse 3D printing technologies can realize modularized fabrication according to the application requirements. The integration of artificial intelligence software systems further facilitates the output of precise and dependable signals. Simultaneously, the self-learning capabilities of the system also promote programmable optimization for the hardware, fostering continuous improvement of gas sensors for dynamic environments. This review investigates the latest studies on 3D-printed gas sensor devices and relevant components, elucidating the technical features and advantages of different 3D printing processes. A general testing framework for the performance evaluation of customized gas sensors is proposed. Additionally, it highlights the superiority and challenges of programmable and modularized gas sensors, providing a comprehensive reference for material adjustments, structure design, and process modifications for advanced gas sensor devices.

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