Reduced graphene oxide obtained using the spray pyrolysis technique for gas sensing

IF 1.1 Q4 QUANTUM SCIENCE & TECHNOLOGY
O. Slobodian, Y. Milovanov, V. Skryshevsky, A. Vasin, X. Tang, J. Raskin, P. Lytvyn, K. Svezhentsova, S. Malyuta, A. Nazarov
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引用次数: 7

Abstract

Graphene oxide films were formed using the ultrasonic spray coating method and studied with micro-Raman spectroscopy, atomic force microscopy, and electrical dynamic response of resistance measurements. Effect of different gases (water vapor, ethanol, acetone, ammonia, and isopropyl) on the dynamic response of resistance of the Au / graphene oxide / Au structure has been studied. The dynamic response shows that adsorption of all mentioned gases results in increase of the resistance. For ethanol, acetone and isopropyl adsorption and desorption cycles are almost identical. At the same time, in the case of water vapor and ammonia the cycle of desorption is very week, especially for the former, which attests different mechanisms of adsorption/desorption processes regarding to ethanol, acetone and isopropyl. The mechanisms of studied vapors adsorption/desorption are proposed.
使用喷雾热解技术获得用于气敏的还原氧化石墨烯
采用超声波喷涂法形成氧化石墨烯薄膜,并用显微拉曼光谱、原子力显微镜和电阻测量的电动态响应进行了研究。研究了不同气体(水蒸气、乙醇、丙酮、氨和异丙基)对Au/氧化石墨烯/Au结构电阻动态响应的影响。动态响应表明,上述气体的吸附导致电阻的增加。对于乙醇,丙酮和异丙基的吸附和解吸循环几乎相同。同时,在水蒸气和氨的情况下,解吸循环是非常长的一周,特别是对于前者,这证明了关于乙醇、丙酮和异丙基的吸附/解吸过程的不同机制。提出了所研究的蒸汽吸附/解吸机理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.80
自引率
22.20%
发文量
43
审稿时长
15 weeks
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