Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions
Само за регистроване кориснике
2018
Аутори
Vujković, MilicaBajuk-Bogdanović, Danica V.
Matović, Ljiljana
Stojmenović, Marija
Mentus, Slavko V.
Чланак у часопису (Објављена верзија)
,
© 2018 Elsevier Ltd
Метаподаци
Приказ свих података о документуАпстракт
Coulombic capacity of zeolite-templated carbon (ZTC) measured in alkaline solution was roughly doubled by a previous potentiodynamic treatment in sulfuric acidic solution. In order to explain the reasons of this capacity improvement, the changes in chemical composition of ZTC surface during its pretreatment in sulfuric acid either by simple immersion, or by potentiodynamic polarization, and during subsequent potentiodynamic polarization in KOH solutions, were studied by means of TG/DTA, FTIR spectroscopy and Raman spectroscopy. The results of this study open some novel insights in understanding of very peculiar carbon electrochemistry. The observed changes in surface chemistry include i) fast adsorption of H2O and formation of OH− and epoxide groups on immersion in sulfuric acid, ii) the multiplication of concentration of H2O/OH− and epoxide groups during potentiodynamic cycling in sulfuric acid and iii) the ring-opening of epoxide groups (formed during potentiodynamic cycling in acidi...c solution) upon its potentiodynamic cycling in alkaline solution, according to a SN2 type mechanism, which results in the formation of aromatic OH-containing diol compounds. © 2018 Elsevier Ltd
Кључне речи:
Zeolite-templated carbon / Low-potential activation / Epoxide ring opening / Alkaline-type supercapacitorИзвор:
Carbon, 2018, 138, 369-378Финансирање / пројекти:
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-45014)
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-45012)
- Електропроводни и редокс-активни полимери и олигомери: синтеза, структура, својства и примена (RS-172043)
- Serbian Academy of Sciences and Arts (F-190)
DOI: 10.1016/j.carbon.2018.07.053
ISSN: 0008-6223; 1873-3891
WoS: 000442635300044
Scopus: 2-s2.0-85053199179
URI
https://linkinghub.elsevier.com/retrieve/pii/S0008622318307036https://vinar.vin.bg.ac.rs/handle/123456789/7872
Колекције
Институција/група
VinčaTY - JOUR AU - Vujković, Milica AU - Bajuk-Bogdanović, Danica V. AU - Matović, Ljiljana AU - Stojmenović, Marija AU - Mentus, Slavko V. PY - 2018 UR - https://linkinghub.elsevier.com/retrieve/pii/S0008622318307036 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7872 AB - Coulombic capacity of zeolite-templated carbon (ZTC) measured in alkaline solution was roughly doubled by a previous potentiodynamic treatment in sulfuric acidic solution. In order to explain the reasons of this capacity improvement, the changes in chemical composition of ZTC surface during its pretreatment in sulfuric acid either by simple immersion, or by potentiodynamic polarization, and during subsequent potentiodynamic polarization in KOH solutions, were studied by means of TG/DTA, FTIR spectroscopy and Raman spectroscopy. The results of this study open some novel insights in understanding of very peculiar carbon electrochemistry. The observed changes in surface chemistry include i) fast adsorption of H2O and formation of OH− and epoxide groups on immersion in sulfuric acid, ii) the multiplication of concentration of H2O/OH− and epoxide groups during potentiodynamic cycling in sulfuric acid and iii) the ring-opening of epoxide groups (formed during potentiodynamic cycling in acidic solution) upon its potentiodynamic cycling in alkaline solution, according to a SN2 type mechanism, which results in the formation of aromatic OH-containing diol compounds. © 2018 Elsevier Ltd T2 - Carbon T1 - Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions VL - 138 SP - 369 EP - 378 DO - 10.1016/j.carbon.2018.07.053 ER -
@article{ author = "Vujković, Milica and Bajuk-Bogdanović, Danica V. and Matović, Ljiljana and Stojmenović, Marija and Mentus, Slavko V.", year = "2018", abstract = "Coulombic capacity of zeolite-templated carbon (ZTC) measured in alkaline solution was roughly doubled by a previous potentiodynamic treatment in sulfuric acidic solution. In order to explain the reasons of this capacity improvement, the changes in chemical composition of ZTC surface during its pretreatment in sulfuric acid either by simple immersion, or by potentiodynamic polarization, and during subsequent potentiodynamic polarization in KOH solutions, were studied by means of TG/DTA, FTIR spectroscopy and Raman spectroscopy. The results of this study open some novel insights in understanding of very peculiar carbon electrochemistry. The observed changes in surface chemistry include i) fast adsorption of H2O and formation of OH− and epoxide groups on immersion in sulfuric acid, ii) the multiplication of concentration of H2O/OH− and epoxide groups during potentiodynamic cycling in sulfuric acid and iii) the ring-opening of epoxide groups (formed during potentiodynamic cycling in acidic solution) upon its potentiodynamic cycling in alkaline solution, according to a SN2 type mechanism, which results in the formation of aromatic OH-containing diol compounds. © 2018 Elsevier Ltd", journal = "Carbon", title = "Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions", volume = "138", pages = "369-378", doi = "10.1016/j.carbon.2018.07.053" }
Vujković, M., Bajuk-Bogdanović, D. V., Matović, L., Stojmenović, M.,& Mentus, S. V.. (2018). Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions. in Carbon, 138, 369-378. https://doi.org/10.1016/j.carbon.2018.07.053
Vujković M, Bajuk-Bogdanović DV, Matović L, Stojmenović M, Mentus SV. Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions. in Carbon. 2018;138:369-378. doi:10.1016/j.carbon.2018.07.053 .
Vujković, Milica, Bajuk-Bogdanović, Danica V., Matović, Ljiljana, Stojmenović, Marija, Mentus, Slavko V., "Mild electrochemical oxidation of zeolite templated carbon in acidic solutions, as a way to boost its charge storage properties in alkaline solutions" in Carbon, 138 (2018):369-378, https://doi.org/10.1016/j.carbon.2018.07.053 . .