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.

引用

页码：2224 / 2227

页数：4

共 47 条

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