Chemical transformation of iron alkoxide nanosheets to FeOOH nanoparticles for highly active and stable oxygen evolution electrocatalysts

Jooyoung Lee; Hoyoung Lee; Byungkwon Lim

doi:10.1016/j.jiec.2017.09.013

Chemical transformation of iron alkoxide nanosheets to FeOOH nanoparticles for highly active and stable oxygen evolution electrocatalysts

Jooyoung Lee
, Hoyoung Lee
, Byungkwon Lim

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

We describe a facile chemical transformation method to produce small iron oxyhydroxide (FeOOH) nanoparticles for application in electrochemical oxygen evolution reaction (OER). In this work, iron alkoxide nanosheets were synthesized by heating a mixture of iron nitrate, ethylene glycol (EG), and oleylamine (OAm), which transformed to FeOOH nanoparticles with sizes less than 10 nm upon alkali treatment in aqueous KOH solution. These FeOOH nanoparticles exhibited much enhanced OER activity compared with that of both commercial FeOOH powders and IrO₂ catalyst, as well as good stability in high pH conditions.

Original language	English
Pages (from-to)	100-104
Number of pages	5
Journal	Journal of Industrial and Engineering Chemistry
Volume	58
DOIs	https://doi.org/10.1016/j.jiec.2017.09.013
State	Published - 25 Feb 2018

Keywords

Chemical transformation
FeOOH
Iron alkoxide
Nanoparticles
Oxygen evolution reaction

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10.1016/j.jiec.2017.09.013

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title = "Chemical transformation of iron alkoxide nanosheets to FeOOH nanoparticles for highly active and stable oxygen evolution electrocatalysts",

abstract = "We describe a facile chemical transformation method to produce small iron oxyhydroxide (FeOOH) nanoparticles for application in electrochemical oxygen evolution reaction (OER). In this work, iron alkoxide nanosheets were synthesized by heating a mixture of iron nitrate, ethylene glycol (EG), and oleylamine (OAm), which transformed to FeOOH nanoparticles with sizes less than 10 nm upon alkali treatment in aqueous KOH solution. These FeOOH nanoparticles exhibited much enhanced OER activity compared with that of both commercial FeOOH powders and IrO2 catalyst, as well as good stability in high pH conditions.",

keywords = "Chemical transformation, FeOOH, Iron alkoxide, Nanoparticles, Oxygen evolution reaction",

author = "Jooyoung Lee and Hoyoung Lee and Byungkwon Lim",

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AU - Lee, Jooyoung

AU - Lee, Hoyoung

AU - Lim, Byungkwon

PY - 2018/2/25

Y1 - 2018/2/25

N2 - We describe a facile chemical transformation method to produce small iron oxyhydroxide (FeOOH) nanoparticles for application in electrochemical oxygen evolution reaction (OER). In this work, iron alkoxide nanosheets were synthesized by heating a mixture of iron nitrate, ethylene glycol (EG), and oleylamine (OAm), which transformed to FeOOH nanoparticles with sizes less than 10 nm upon alkali treatment in aqueous KOH solution. These FeOOH nanoparticles exhibited much enhanced OER activity compared with that of both commercial FeOOH powders and IrO2 catalyst, as well as good stability in high pH conditions.

AB - We describe a facile chemical transformation method to produce small iron oxyhydroxide (FeOOH) nanoparticles for application in electrochemical oxygen evolution reaction (OER). In this work, iron alkoxide nanosheets were synthesized by heating a mixture of iron nitrate, ethylene glycol (EG), and oleylamine (OAm), which transformed to FeOOH nanoparticles with sizes less than 10 nm upon alkali treatment in aqueous KOH solution. These FeOOH nanoparticles exhibited much enhanced OER activity compared with that of both commercial FeOOH powders and IrO2 catalyst, as well as good stability in high pH conditions.

KW - Chemical transformation

KW - FeOOH

KW - Iron alkoxide

KW - Nanoparticles

KW - Oxygen evolution reaction

UR - https://www.scopus.com/pages/publications/85029629263

U2 - 10.1016/j.jiec.2017.09.013

DO - 10.1016/j.jiec.2017.09.013

M3 - Article

AN - SCOPUS:85029629263

SN - 1226-086X

VL - 58

SP - 100

EP - 104

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Chemical transformation of iron alkoxide nanosheets to FeOOH nanoparticles for highly active and stable oxygen evolution electrocatalysts

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Keywords

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