ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА

ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА

Various methods for unzipping carbon nanotubes are described, which differ only in the method of acting on multi-walled carbon nanotubes which leads to obtain a partial unzipped carbon nanotubes or the creation of a defective hybrid structure in carbon nanotubes. By electrochemical anodic oxidation...

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Datum:2019
Hauptverfasser: Danilov, Michail, Rusetskyi , Ihor, Dovbeshko, Galina, Nikolenko, Andrii, Fomanyuk, Sergey, Kolbasov , Gennadii
Format: Artikel
Sprache:English
Veröffentlicht: V.I.Vernadsky Institute of General and Inorganic Chemistry 2019
Online Zugang:https://ucj.org.ua/index.php/journal/article/view/103
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Назва журналу:Ukrainian Chemistry Journal

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Ukrainian Chemistry Journal
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spelling oai:ojs2.1444248.nisspano.web.hosting-test.net:article-1032019-12-19T18:20:21Z OBTAINING PARTIALLY UNZIPPED CARBON NANOTUBES FOR OXYGEN ELECTRODES ПОЛУЧЕНИЕ ЧАСТИЧНО РАСКРЫТЫХ УГЛЕРОДНЫХ НАНОТРУБОК ДЛЯ КИСЛОРОДНОГО ЭЛЕКТРОДА ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА Danilov, Michail Rusetskyi , Ihor Dovbeshko, Galina Nikolenko, Andrii Fomanyuk, Sergey Kolbasov , Gennadii partially unzipped multi-walled carbon nanotubes, oxygen electrode, electrocatalysis, electrode materials. Various methods for unzipping carbon nanotubes are described, which differ only in the method of acting on multi-walled carbon nanotubes which leads to obtain a partial unzipped carbon nanotubes or the creation of a defective hybrid structure in carbon nanotubes. By electrochemical anodic oxidation in 80 % sulfuric acid of multi-walled carbon nanotubes synthesized partially unzipped nanotubes and shows the results of the study. Using the methods of X-ray phase analysis, electron microscopy, and Raman spectra, it has been established that, as a result of electrochemical anodic oxidation, partially unzipped multi-walled carbon nanotubes are obtained. Two-layer oxygen electrodes were made, where synthesized materials were used as an active layer. Studies of the electrocatalytic characteristics of oxygen electrodes from partially unzipped multi-walled carbon nanotubes were carried out in a mock up of fuel cell with alkaline electrolyte. It is established that the degree of unzipping of multi-walled carbon nanotubes depends on the time of electrochemical oxidation. It has been suggested that it is possible to control the process of synthesis of partially unzipped nanotubes. It has been established that one of the methods for estimating the degree of unzipping of multi-walled carbon nanotubes can be studies the electrochemical characteristics of oxygen electrodes based on these materials. Electrochemical investigation has established that the obtained samples of partially unzipped multi-walled carbon nanotubes are promising materials as catalysts carrier for oxygen electrodes of fuel cells. The developed method synthesis of partially unzipped multi-walled carbon nanotubes allows obtaining electrode materials for chemical current sources. Oxygen electrodes, based on such electrochemically produced materials, were stable for six months at a discharge current density of 200 mA/cm2. Partially unzipped multi-walled carbon nanotubes are promising catalyst carrier for electrodes of chemical current sources, as well as a material for hybrid nanocomposites with predetermined characteristics. V.I.Vernadsky Institute of General and Inorganic Chemistry 2019-12-16 Article Article Physical chemistry Физическая xимия Фізична xімія application/pdf https://ucj.org.ua/index.php/journal/article/view/103 10.33609/0041-6045.85.11.2019.41-51 Ukrainian Chemistry Journal; Vol. 85 No. 11 (2019): Ukrainian Chemistry Journal; 41-51 Украинский химический журнал; Том 85 № 11 (2019): Украинский химический журнал; 41-51 Український хімічний журнал; Том 85 № 11 (2019): Український хімічний журнал; 41-51 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/103/67
institution Ukrainian Chemistry Journal
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datestamp_date 2019-12-19T18:20:21Z
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language English
topic_facet partially unzipped multi-walled carbon nanotubes
oxygen electrode
electrocatalysis
electrode materials.
format Article
author Danilov, Michail
Rusetskyi , Ihor
Dovbeshko, Galina
Nikolenko, Andrii
Fomanyuk, Sergey
Kolbasov , Gennadii
spellingShingle Danilov, Michail
Rusetskyi , Ihor
Dovbeshko, Galina
Nikolenko, Andrii
Fomanyuk, Sergey
Kolbasov , Gennadii
ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
author_facet Danilov, Michail
Rusetskyi , Ihor
Dovbeshko, Galina
Nikolenko, Andrii
Fomanyuk, Sergey
Kolbasov , Gennadii
author_sort Danilov, Michail
title ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
title_short ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
title_full ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
title_fullStr ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
title_full_unstemmed ОТРИМАННЯ ЧАСТКОВО РОЗКРИТИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ДЛЯ КИСНЕВОГО ЕЛЕКТРОДА
title_sort отримання частково розкритих вуглецевих нанотрубок для кисневого електрода
title_alt OBTAINING PARTIALLY UNZIPPED CARBON NANOTUBES FOR OXYGEN ELECTRODES
ПОЛУЧЕНИЕ ЧАСТИЧНО РАСКРЫТЫХ УГЛЕРОДНЫХ НАНОТРУБОК ДЛЯ КИСЛОРОДНОГО ЭЛЕКТРОДА
description Various methods for unzipping carbon nanotubes are described, which differ only in the method of acting on multi-walled carbon nanotubes which leads to obtain a partial unzipped carbon nanotubes or the creation of a defective hybrid structure in carbon nanotubes. By electrochemical anodic oxidation in 80 % sulfuric acid of multi-walled carbon nanotubes synthesized partially unzipped nanotubes and shows the results of the study. Using the methods of X-ray phase analysis, electron microscopy, and Raman spectra, it has been established that, as a result of electrochemical anodic oxidation, partially unzipped multi-walled carbon nanotubes are obtained. Two-layer oxygen electrodes were made, where synthesized materials were used as an active layer. Studies of the electrocatalytic characteristics of oxygen electrodes from partially unzipped multi-walled carbon nanotubes were carried out in a mock up of fuel cell with alkaline electrolyte. It is established that the degree of unzipping of multi-walled carbon nanotubes depends on the time of electrochemical oxidation. It has been suggested that it is possible to control the process of synthesis of partially unzipped nanotubes. It has been established that one of the methods for estimating the degree of unzipping of multi-walled carbon nanotubes can be studies the electrochemical characteristics of oxygen electrodes based on these materials. Electrochemical investigation has established that the obtained samples of partially unzipped multi-walled carbon nanotubes are promising materials as catalysts carrier for oxygen electrodes of fuel cells. The developed method synthesis of partially unzipped multi-walled carbon nanotubes allows obtaining electrode materials for chemical current sources. Oxygen electrodes, based on such electrochemically produced materials, were stable for six months at a discharge current density of 200 mA/cm2. Partially unzipped multi-walled carbon nanotubes are promising catalyst carrier for electrodes of chemical current sources, as well as a material for hybrid nanocomposites with predetermined characteristics.
publisher V.I.Vernadsky Institute of General and Inorganic Chemistry
publishDate 2019
url https://ucj.org.ua/index.php/journal/article/view/103
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last_indexed 2025-09-24T17:43:22Z
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