Metal-organic-frameworks on 3D-printed electrodes:in situelectrochemical transformation towards the oxygen evolution reaction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU138313" target="_blank" >RIV/00216305:26620/20:PU138313 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/20:43920497

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2020/SE/D0SE00503G#!divAbstract" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2020/SE/D0SE00503G#!divAbstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0se00503g" target="_blank" >10.1039/d0se00503g</a>

Result language

angličtina

Original language name

Metal-organic-frameworks on 3D-printed electrodes:in situelectrochemical transformation towards the oxygen evolution reaction

Original language description

Metal-organic framework (MOF) derived materials are important alternatives for electrochemical energy storage and conversion, due to their highly large surface area, abundant active sites, and diversity in composition and structure. In this work, a controllable electrochemical transformation of ZIF-67 into active porous metal oxides is employed for the oxygen evolution reaction (OER). ZIF-67 is directly coated onto the surface of three-dimensional (3D) printed titanium (Ti) electrodes using a step-by-stepin situgrowth and then converted into cobalt oxide (Co3O4) by electrochemical cycling, designated as ZIF-67/Ti-E electrode. Raman spectroscopy, scanning electron microscopy (SEM), and cyclic voltammetry (CV) have been used to verify the electrochemical transformation from octahedral ZIF-67 to thin sheet-shaped Co3O4. This large-surface-area Co3O4, as well as the existence of Co(IV)species right before water oxidation, plays a critical role in enhanced OER performance under alkaline electrolysis conditions. The optimized ZIF-67/Ti-E electrode has demonstrated a better OER performance with a low overpotential of 360 mV at a current density of 10 mA cm(-2)and excellent durability, compared with its counterparts produced by the widely popular calcination method. Our method provides a simplein situ, fast, mild, and energy-efficient approach to employ MOF-derived materials as promising OER catalysts using scaled-up 3D-printed electrodes.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GX19-26896X" target="_blank" >GX19-26896X: 2D Nanomaterials Electrochemistry</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

SUSTAINABLE ENERGY & FUELS

ISSN

2398-4902

e-ISSN

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Volume of the periodical

4

Issue of the periodical within the volume

7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

3732-3738

UT code for WoS article

000544657200050

EID of the result in the Scopus database

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