Počet záznamů: 1
Electrochemically controlled winding and unwinding of substrate-supported carbon nanoscrolls
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SYSNO ASEP 0487730 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electrochemically controlled winding and unwinding of substrate-supported carbon nanoscrolls Tvůrce(i) Tarábková, Hana (UFCH-W) RID, ORCID
Zelinger, Zdeněk (UFCH-W) RID, ORCID
Janda, Pavel (UFCH-W) RID, ORCIDZdroj.dok. Physical Chemistry Chemical Physics. - : Royal Society of Chemistry - ISSN 1463-9076
Roč. 20, č. 8 (2018), s. 5900-5908Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova electrochemistry ; carbon nanoscrolls ; electrical energy Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) CEP GA17-05167s GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000427085400056 EID SCOPUS 85042629396 DOI 10.1039/c7cp08018b Anotace Carbon nanoscrolls (CNSs) formed spontaneously on the basal plane of highly ordered pyrolytic graphite (HOPG) show winding and unwinding movements when potential steps from 0 V to0.5 V,0.6 V and0.9 V are applied on HOPG immersed in an aqueous electrolyte solution (0.1 M H 2 SO 4 ). Reversible changes in CNS radial dimensions exceeding 10 nm in the axial direction and 50 nm in the lateral direction are ascribed to variations in the surface tension and electric double-layer structure under applied potentials. Radial motion is observed exclusively on scrolled tube-shaped nanostructures, while other parts of the HOPG surface including planar areas, simple bended and lifted step edges, and kinks remain intact. The mechanism explaining the observed phenomenon is proposed and its significance for prospective applications in electrochemically controlled nanomechanical actuators is outlined. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2019
Počet záznamů: 1