Morphology effect on electrocatalytic activity of TiO 2 spheres synthesized by binary ionic liquids in water electrolysis

Kiwon Hong; Daewon Pak; Kye Sang Yoo

doi:10.5012/bkcs.2012.33.6.1829

Morphology effect on electrocatalytic activity of TiO ₂ spheres synthesized by binary ionic liquids in water electrolysis

Kiwon Hong, Daewon Pak, Kye Sang Yoo

Dept. of Chemical and Biomolecular Engineering

Seoul National University of Science and Technology (SNUST)

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

4 Scopus citations

Abstract

Titania spheres were synthesized using binary ionic liquids to examine the electrocatalytic activity in acid solution. The morphology of TiO ₂ particles was significantly different with the composition of ionic liquids. Among the binary ionic liquids, four set of mixtures led to the formation of TiO ₂ sphere with various sizes. The morphology and structure of TiO ₂ particles were characterized by XRD, N ₂ physisoption and SEM analysis. All samples possessed an anatase phase after calcinations at 500 oC. The structural properties of the samples were varied significantly with the morphology. In cyclic voltammograms, the morphology of TiO ₂ spheres affected the electrocatalytic activity in water electrolysis. Among the samples, [Omim][BF ₄]+[Hmim][BF ₄] was the most effective ionic liquid to synthesize TiO ₂ sphere with optimum morphology showing the highest electocatalytic performance.

Original language	English
Pages (from-to)	1829-1833
Number of pages	5
Journal	Bulletin of the Korean Chemical Society
Volume	33
Issue number	6
DOIs	https://doi.org/10.5012/bkcs.2012.33.6.1829
State	Published - 20 Jun 2012

Keywords

Electrocatalyst
Ionic liquid
TiO sphere

Access to Document

10.5012/bkcs.2012.33.6.1829

Cite this

@article{f246c6faa578496588929c4c84dd15c6,

title = "Morphology effect on electrocatalytic activity of TiO 2 spheres synthesized by binary ionic liquids in water electrolysis",

abstract = "Titania spheres were synthesized using binary ionic liquids to examine the electrocatalytic activity in acid solution. The morphology of TiO 2 particles was significantly different with the composition of ionic liquids. Among the binary ionic liquids, four set of mixtures led to the formation of TiO 2 sphere with various sizes. The morphology and structure of TiO 2 particles were characterized by XRD, N 2 physisoption and SEM analysis. All samples possessed an anatase phase after calcinations at 500 oC. The structural properties of the samples were varied significantly with the morphology. In cyclic voltammograms, the morphology of TiO 2 spheres affected the electrocatalytic activity in water electrolysis. Among the samples, [Omim][BF 4]+[Hmim][BF 4] was the most effective ionic liquid to synthesize TiO 2 sphere with optimum morphology showing the highest electocatalytic performance.",

keywords = "Electrocatalyst, Ionic liquid, TiO sphere",

author = "Kiwon Hong and Daewon Pak and Yoo, \{Kye Sang\}",

year = "2012",

month = jun,

day = "20",

doi = "10.5012/bkcs.2012.33.6.1829",

language = "English",

volume = "33",

pages = "1829--1833",

journal = "Bulletin of the Korean Chemical Society",

issn = "0253-2964",

number = "6",

}

TY - JOUR

T1 - Morphology effect on electrocatalytic activity of TiO 2 spheres synthesized by binary ionic liquids in water electrolysis

AU - Hong, Kiwon

AU - Pak, Daewon

AU - Yoo, Kye Sang

PY - 2012/6/20

Y1 - 2012/6/20

N2 - Titania spheres were synthesized using binary ionic liquids to examine the electrocatalytic activity in acid solution. The morphology of TiO 2 particles was significantly different with the composition of ionic liquids. Among the binary ionic liquids, four set of mixtures led to the formation of TiO 2 sphere with various sizes. The morphology and structure of TiO 2 particles were characterized by XRD, N 2 physisoption and SEM analysis. All samples possessed an anatase phase after calcinations at 500 oC. The structural properties of the samples were varied significantly with the morphology. In cyclic voltammograms, the morphology of TiO 2 spheres affected the electrocatalytic activity in water electrolysis. Among the samples, [Omim][BF 4]+[Hmim][BF 4] was the most effective ionic liquid to synthesize TiO 2 sphere with optimum morphology showing the highest electocatalytic performance.

AB - Titania spheres were synthesized using binary ionic liquids to examine the electrocatalytic activity in acid solution. The morphology of TiO 2 particles was significantly different with the composition of ionic liquids. Among the binary ionic liquids, four set of mixtures led to the formation of TiO 2 sphere with various sizes. The morphology and structure of TiO 2 particles were characterized by XRD, N 2 physisoption and SEM analysis. All samples possessed an anatase phase after calcinations at 500 oC. The structural properties of the samples were varied significantly with the morphology. In cyclic voltammograms, the morphology of TiO 2 spheres affected the electrocatalytic activity in water electrolysis. Among the samples, [Omim][BF 4]+[Hmim][BF 4] was the most effective ionic liquid to synthesize TiO 2 sphere with optimum morphology showing the highest electocatalytic performance.

KW - Electrocatalyst

KW - Ionic liquid

KW - TiO sphere

UR - https://www.scopus.com/pages/publications/84862532869

U2 - 10.5012/bkcs.2012.33.6.1829

DO - 10.5012/bkcs.2012.33.6.1829

M3 - Article

AN - SCOPUS:84862532869

SN - 0253-2964

VL - 33

SP - 1829

EP - 1833

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

IS - 6

ER -

Morphology effect on electrocatalytic activity of TiO ₂ spheres synthesized by binary ionic liquids in water electrolysis

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this