Hydrothermal synthesis of ultrathin ZnO nanosheets and their gas-sensing properties

Weiwei Guo, Tianmo Liu, Zhongping Gou, Wen Zeng, Yong Chen, Zhongchang Wang

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Gas-sensing performances can often be enhanced significantly once the size of sensing nanomaterials approaches a critical value of 15 nm. Here, we synthesize, by a simple hydrothermal method accompanied by the calcination process, ultrathin ZnO nanosheets with a thickness as thin as 10-13 nm. We find that the prepared zinc hydroxide carbonate precursor is largely agglomerated, yet transformed to the ultrathin ZnO nanosheets in a dispersive fashion after the calcination process. The as-prepared ultrathin nanosheets exhibit excellent gas-sensing functions to ethanol gas at the optimal temperature as low as 300 C under the concentration of 50 ppm, rendering them a promising sensing material for the on-site detection of ethanol.

    Original languageEnglish
    Pages (from-to)1764-1769
    Number of pages6
    JournalJournal of Materials Science: Materials in Electronics
    Volume24
    Issue number6
    DOIs
    Publication statusPublished - 2013 Jun

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Atomic and Molecular Physics, and Optics
    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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