Synergistic induction of mesoporosity in metal oxide film electrode through electrohydrodynamic splitting of precursor and simultaneous soft templating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F23%3AA2402LES" target="_blank" >RIV/61988987:17310/23:A2402LES - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic induction of mesoporosity in metal oxide film electrode through electrohydrodynamic splitting of precursor and simultaneous soft templating

Popis výsledku v původním jazyce

Porous metal oxide films are formed over Ni foam using template-assisted electrospray deposition of precursor sol. Pluronic F127, a triblock organic copolymer surfactant as the template source is added to the respective metal acetate sols to prepare Ni and Co oxide films. The unique cubic phases of metal oxides with the mesomacroporous structure provide easier access for electrolyte ions for faradic charge storage. Hollow spherical and honeycomb-like morphologies, respectively in NiO, and Co3O4 film electrodes contributes to the specific capacities (108 mC cm-2 (270 mF cm-2) and 98 mC cm-2 (245 mF cm-2) respectively at 1 mA cm-2). These NiO and Co3O4 film electrodes, when placed with porous carbon films as counter electrode, derived from the electrospray coating of the polymer precursor shows specific energy at the levels of 11.7 Wh kg- 1 and 18 Wh kg- 1 respectively. The template-assisted electrospray approach reported here can be extended to the fabrication of other oxides, mixed metal oxides, or binary/ternary oxide systems.

Název v anglickém jazyce

Synergistic induction of mesoporosity in metal oxide film electrode through electrohydrodynamic splitting of precursor and simultaneous soft templating

Popis výsledku anglicky

Porous metal oxide films are formed over Ni foam using template-assisted electrospray deposition of precursor sol. Pluronic F127, a triblock organic copolymer surfactant as the template source is added to the respective metal acetate sols to prepare Ni and Co oxide films. The unique cubic phases of metal oxides with the mesomacroporous structure provide easier access for electrolyte ions for faradic charge storage. Hollow spherical and honeycomb-like morphologies, respectively in NiO, and Co3O4 film electrodes contributes to the specific capacities (108 mC cm-2 (270 mF cm-2) and 98 mC cm-2 (245 mF cm-2) respectively at 1 mA cm-2). These NiO and Co3O4 film electrodes, when placed with porous carbon films as counter electrode, derived from the electrospray coating of the polymer precursor shows specific energy at the levels of 11.7 Wh kg- 1 and 18 Wh kg- 1 respectively. The template-assisted electrospray approach reported here can be extended to the fabrication of other oxides, mixed metal oxides, or binary/ternary oxide systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10400 - Chemical sciences

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

COLLOID SURFACE A

ISSN

0927-7757

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

132028

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

001054411600001

EID výsledku v databázi Scopus

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