Effect of Inb class="a-plus-plus">2b>Ob class="a-plus-plus">3b> nanofiber structure on the ammonia sensing performances of Inb class="a-plus-plus">2b>Ob class="a-plus-plus">3b>/PANI composite nanofibers

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• 作者：Zengyuan Pang ; Qingxin Nie ; Anfang Wei ; Jie Yang…
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：52
• 期：2
• 页码：686-695
• 全文大小：1,877 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry<br>Materials Science<br>Characterization and Evaluation Materials<br>Polymer Sciences<br>Continuum Mechanics and Mechanics of Materials<br>Crystallography<br>Mechanics<br>
• 出版者：Springer Netherlands
• ISSN：1573-4803
• 卷排序：52

文摘

Indium oxide/polyaniline (Inb>2b>Ob>3b>/PANI) composite nanofibers with the solid or hollow structure of Inb>2b>Ob>3b> were successfully synthesized via a facile and efficient combined method of electrospinning, high-temperature calcination, and in situ polymerization. Various techniques, including scanning electron microscopy, Brunauer–Emmett–Teller, Fourier transform infrared, transmission electron microscopy, and X-ray diffraction, were employed to acquire the morphological, structural, and crystalline information of the prepared samples. The gas sensing performances of the as-obtained composite nanofibers were investigated by a home-made gas sensing test system at room temperature. All the results demonstrated that both solid and hollow Inb>2b>Ob>3b>/PANI composite nanofibers had higher response values than those of pure PANI sensor. In addition, the ammonia sensing properties of hollow Inb>2b>Ob>3b>/PANI composite nanofibers were much better than that of the solid ones. Furthermore, hollow Inb>2b>Ob>3b>/PANI composite nanofibers also showed ideal repeatability and selectivity due to their more and different types of P-N heterojunctions.