Grain boundaries derived from layered Fe/Co di-hydroxide porous prickly-like nanosheets as potential electrocatalyst for efficient electrooxidation of hydrazine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F23%3A43970243" target="_blank" >RIV/49777513:23640/23:43970243 - isvavai.cz</a>

Result on the web

<a href="https://doi" target="_blank" >https://doi</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2023.158265" target="_blank" >10.1016/j.apsusc.2023.158265</a>

Result language

angličtina

Original language name

Grain boundaries derived from layered Fe/Co di-hydroxide porous prickly-like nanosheets as potential electrocatalyst for efficient electrooxidation of hydrazine

Original language description

Constructing a potentially stable and highly active nanostructured catalyst for hydrazine electro-oxidation is of substantial importance in direct-hydrazine fuel cells (DHFCs) application. In this work, we grow layered pricklylike Fe/Co di-hydroxide porous nanostructures as bifunctional catalysts on the surface of nickel mesh (Fe/Co/ NiMn D-HPNs) via controllable electroplating method for an efficient electrooxidation reaction of hydrazine. The layered prickly-like Fe/Co/NiMn D-HPNs samples are explored as potential catalysts for electrooxidation of hydrazine with the enhanced catalytic current response (32.4 mA cm???? 2), which is higher than the monohydroxide nanostructured electrodes (Fe@ D-HPNs and Co@ D-HPNs). The obtained higher catalytic activity is mainly attributed to layered prickly-like nanostructures with a large electroactive surface area (116.5 cm???? 2),Fe and Co elements that promoted synergetic effect, and the presence of grain-boundaries on the surface of prickly-like porous layers. The layered prickly-like Fe/Co/NiM30 D-HPNs catalyst displayed a low Tafel slope (67.4 mV dec???? 1) and longer stability of its original morphology of layered prickly-like porous nanostructures toward the electrooxidation of hydrazine even after &gt;10000 sec. Thus, the layered prickly-like Fe/Co/NiM30 DHPNs are considered as a potential and robust catalyst, and provide new insights in the construction of highlyactive and low-cost alternative non-noble nanostructured materials for DHFCs applications.

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

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

APPLIED SURFACE SCIENCE

ISSN

0169-4332

e-ISSN

1873-5584

Volume of the periodical

639

Issue of the periodical within the volume

DEC 1 2023

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

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UT code for WoS article

001067120300001

EID of the result in the Scopus database

2-s2.0-85168557672