AI Article Synopsis
- Metal oxide nanowires (NWs) are promising for resistive gas sensors due to their high surface area, easy fabrication, and the ability to control their diameter and chemical composition.
- The vapor-liquid-solid (VLS) synthesis method is favored for its simplicity, cost-effectiveness, and the capability to create branched structures.
- The article reviews the growth and gas-sensing characteristics of various metal oxide NWs like SnO, ZnO, and CuO, focusing on how factors like catalyst type and growth temperature influence their performance.
Article Abstract
Metal oxide nanowires (NWs) with a high surface area, ease of fabrication, and precise control over diameter and chemical composition are among the best candidates for the realization of resistive gas sensors. Among the different techniques used for the synthesis of materials with NW morphology, approaches based on the vapor-liquid-solid (VLS) mechanism are very popular due to the ease of synthesis, low price of starting materials, and possibility of branching. In this review article, we discuss the gas-sensing features of metal oxide NWs grown by the VLS mechanism, with emphasis on the growth conditions and sensing mechanism. The growth and sensing performance of SnO, ZnO, InO, NiO, CuO, and WO materials with NW morphology are discussed. The effects of the catalyst type, growth temperature, and other variables on the morphology and gas-sensing performance of NWs are discussed.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10532950 | PMC |
| http://dx.doi.org/10.3390/ma16186233 | DOI Listing |
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