Electrochemical performance of cobalt hydroxide nanosheets formed by the delamination of layered cobalt hydroxide in water

Kód výsledku v IS VaVaI

RIV/00216208:11310/14:10293618 - isvavai.cz

Nalezeny alternativní kódy

RIV/61388980:_____/14:00429046 RIV/61388955:_____/14:00429046 RIV/61389013:_____/14:00429046

Výsledek na webu

http://dx.doi.org/10.1039/c4dt00141a

DOI - Digital Object Identifier

10.1039/c4dt00141a

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical performance of cobalt hydroxide nanosheets formed by the delamination of layered cobalt hydroxide in water

Popis výsledku v původním jazyce

We report the preparation of monometallic Co2+/Co3+ layered double hydroxide, intercalated with lactate anions (LCoH-Lactate), and its spontaneous delamination in water to form cobalt hydroxide nanosheets. These hydroxide nanosheets formed stable aqueousdispersions. The thickness of a nanosheet was estimated to be approximately 1 nm by atomic force microscopy and small angle X-ray scattering experiments, and corresponds to a single hydroxide layer. Some of the Co2+ cations were oxidised by oxygen, resulting in a mixed Co0.762+Co0.243+ layer composition. Upon water evaporation, the nanosheets restacked to form transparent self-standing films with a layered structure like that of the original material. The coverage of the surface with side-by-side stacks of nanosheets indicated two-dimensional agglomeration and suggested that these dispersions could be applied to prepare large monolayers of nanosheets. The layers prepared by spin-coating were stable and featured reversible and reproduci

Název v anglickém jazyce

Electrochemical performance of cobalt hydroxide nanosheets formed by the delamination of layered cobalt hydroxide in water

Popis výsledku anglicky

We report the preparation of monometallic Co2+/Co3+ layered double hydroxide, intercalated with lactate anions (LCoH-Lactate), and its spontaneous delamination in water to form cobalt hydroxide nanosheets. These hydroxide nanosheets formed stable aqueousdispersions. The thickness of a nanosheet was estimated to be approximately 1 nm by atomic force microscopy and small angle X-ray scattering experiments, and corresponds to a single hydroxide layer. Some of the Co2+ cations were oxidised by oxygen, resulting in a mixed Co0.762+Co0.243+ layer composition. Upon water evaporation, the nanosheets restacked to form transparent self-standing films with a layered structure like that of the original material. The coverage of the surface with side-by-side stacks of nanosheets indicated two-dimensional agglomeration and suggested that these dispersions could be applied to prepare large monolayers of nanosheets. The layers prepared by spin-coating were stable and featured reversible and reproduci

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

GP13-09462P: Nová metoda pro přípravu nanodestiček oxidů přechodných kovů

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dalton Transactions

ISSN

1477-9226

e-ISSN

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Svazek periodika

43

Číslo periodika v rámci svazku

27

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

10484-10491

Kód UT WoS článku

000338117200020

EID výsledku v databázi Scopus

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