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Catalytic activity of polypyrrole nanotubes decorated with noble-metal nanoparticles and their conversion to carbonized analogues
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SYSNO ASEP 0456092 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Catalytic activity of polypyrrole nanotubes decorated with noble-metal nanoparticles and their conversion to carbonized analogues Tvůrce(i) Sapurina, Irina (UMCH-V) RID
Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Šeděnková, Ivana (UMCH-V) RID
Trchová, Miroslava (UMCH-V) RID, ORCID
Kovářová, Jana (UMCH-V) RID
Hromádková, Jiřina (UMCH-V) RID
Kopecká, J. (CZ)
Cieslar, M. (CZ)
Abu El-Nasr, A. (EG)
Ayad, M. M. (EG)Zdroj.dok. Synthetic Metals. - : Elsevier - ISSN 0379-6779
Roč. 214, April (2016), s. 14-22Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova conducting polymer ; polypyrrole nanotubes ; noble metals Vědní obor RIV CD - Makromolekulární chemie CEP GA13-00270S GA ČR - Grantová agentura ČR LH14199 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LO1507 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000374363500003 EID SCOPUS 84960928954 DOI 10.1016/j.synthmet.2016.01.009 Anotace Polypyrrole nanotubes were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of methyl orange. They were subsequently used as a substrate for the reductive deposition of noble metal particles. Polypyrrole nanotubes decorated with palladium, platinum, rhodium, or ruthenium nanoparticles were characterized by electron microscopy, conductivity, energy dispersive X-ray analysis, and FTIR and Raman spectroscopies. A typical metal content varied between 15 and 20 wt.%. The catalytic activity of composites was illustrated on the reduction of 4-nitrophenol to 4-aminophenol. The carbonization of composites has been followed by thermogravimetric analysis in nitrogen atmosphere. The nanotubular morphology of polypyrrole was retained after carbonization up to 830 °C. The noble-metal nanoparticles, nanometres in size, fused to clusters during this process, except for ruthenium. Polypyrrole nanotubes were converted to a nitrogen-containing carbon and platinum nanoparticles still preserved during carbonization at 400–500 °C. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2017
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