Synthesis and Gas-Sensing Properties of MnO2- x and MnO2- x/CuO-Coated Multiwalled Carbon Nanotube Nanocomposites

被引：0
作者：
Sten'kin, Yu A. [1 ]
Bolotov, V. V. [1 ,2 ]
Sokolov, D., V [1 ]
Roslikov, V. E. [1 ]
Ivlev, K. E. [1 ]
机构：
[1] Russian Acad Sci, Omsk Sci Ctr, Siberian Branch, Omsk, Russia
[2] Dostoevsky Omsk State Univ, Omsk, Russia
来源：
PHYSICS OF THE SOLID STATE | 2019年 / 61卷 / 11期
基金：
俄罗斯基础研究基金会;
关键词：
carbon nanotubes; manganese oxide; copper oxide; nanocomposites; gas-sensing response;
D O I：
10.1134/S1063783419110386
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Nanocomposites based on multiwall carbon nanotubes (MWCNTs) impregnated with manganese oxide MnO2 - (x) and copper oxide CuO are synthesized and studied. The morphology and elemental composition of MWCNT layers and MWCNT/MnO2 - (x) and MWCNT/MnO2 - (x)/CuO nanocomposites are investigated by scanning electron microscopy and X-ray photoelectron spectroscopy. We study the gas-sensing response of the prepared nanocomposites to hydrogen sulfide (H2S) and nitrogen dioxide (NO2). An increase in the conductance observed for the as-grown MWCNTs and the nanocomposites upon NO2 adsorption suggests that these structures exhibit a behavior characteristic of p-type conductivity. Nanocomposites with copper show a markedly enhanced gas-sensing response to H2S.
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收藏
页码：2224 / 2227
页数：4
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