Assessing the ozone-sensing capabilities of porous ZnO nanostructures fabricated via microwave-assisted hydrothermal synthesis

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-03 DOI:10.1016/j.matlet.2025.138332

Amanda A. Komorizono, Julia C. Tagliaferro, Valmor R. Mastelaro

引用次数: 0

Abstract

Porous ZnO nanostructures were synthesized using a microwave-assisted hydrothermal method, followed by calcination to induce pore formation by removing the urea used during synthesis. After microwave synthesis, field-emission scanning electron microscopy (FESEM) images confirmed the formation of ZnO flowers and plates, with pores generated in the flower petals and plates following calcination. The porous ZnO sensor demonstrated the ability to detect low concentrations of O₃ and exhibited relatively low response and recovery times. Additionally, the porous ZnO sensor was exposed to four gases (O₃, NO₂, NH₃, and CO), showing a high selectivity for O₃.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive