Počet záznamů: 1

Nickel-cobalt hydroxide nanosheets: Synthesis, morphology and electrochemical properties

SYSNO ASEP	0473696
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Nickel-cobalt hydroxide nanosheets: Synthesis, morphology and electrochemical properties
Tvůrce(i)	Schneiderová, Barbora (UACH-T)_SAI Demel, Jan (UACH-T)_{SAI, RID, ORCID} Zhigunov, Alexander (UMCH-V)_{RID, ORCID} Bohuslav, Jan (UFCH-W) Tarábková, Hana (UFCH-W)_{RID, ORCID} Janda, Pavel (UFCH-W)_{RID, ORCID} Lang, Kamil (UACH-T)_{SAI, RID, ORCID}
Zdroj.dok.	Journal of Colloid and Interface Science. - : Elsevier - ISSN 0021-9797 Roč. 499, AUG (2017), s. 138-144
Poč.str.	7 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	Hydroxide nanosheets ; Delamination ; Exfoliation ; Layered nickel hydroxide ; Layered cobalt hydroxide ; Electrode material
Vědní obor RIV	CA - Anorganická chemie
Obor OECD	Inorganic and nuclear chemistry
Vědní obor RIV – spolupráce	Ústav fyzikální chemie J.Heyrovského - Fyzikální chemie a teoretická chemie Ústav makromolekulární chemie - Makromolekulární chemie
Institucionální podpora	UACH-T - RVO:61388980 ; UMCH-V - RVO:61389013 ; UFCH-W - RVO:61388955
UT WOS	000400952600016
EID SCOPUS	85016507638
DOI	10.1016/j.jcis.2017.03.096
Anotace	This paper reports the synthesis, characterization, and electrochemical performance of nickel-cobalt hydroxide nanosheets. The hydroxide nanosheets of approximately 0.7 nm thickness were prepared by delamination of layered nickel-cobalt hydroxide lactate in water and formed transparent colloids that were stable for months. The nanosheets were deposited on highly oriented pyrolytic graphite by spin coating, and their electrochemical behavior was investigated by cyclic voltammetry in potassium hydroxide electrolyte. Our method of electrode preparation allows for studying the electrochemistry of nanosheets where the majority of the active centers can participate in the charge transfer reaction. The observed electrochemical response was ascribed to mutual compensation of the cobalt and nickel response via electron sharing between these metals in the hydroxide nanosheets, a process that differentiates the behavior of nickel-cobalt hydroxide nanosheets from single nickel hydroxide or cobalt hydroxide nanosheets or their physical mixture. The presence of cobalt in the nickel-cobalt hydroxide nanosheets apparently decreases the time of electrochemical activation of the nanosheet layer, which for the nickel hydroxide nanosheets alone requires more potential sweeps.
Pracoviště	Ústav anorganické chemie
Kontakt	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Rok sběru	2018

Počet záznamů: 1