Bifunctional heterogeneous catalysts for selective epoxidation and visible light driven photolysis: Nickel oxide-containing porous nanocomposite

Tae Woo Kim, Seong Ju Hwang, Sung Hwa Jhung, Jong San Chang, Hyunwoong Park, Wonyong Choi, Jin Ho Choy

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

A study was conducted to synthesize multifunctional heterogeneous catalysts of nickel-oxide-containing porous nanocomposites through the coupling of the nickel oxide nanoparticles with the titanium oxide nanosheets. The XRD peaks of the nanocomposite appear broader than those of the protonated titanium oxide, which is a typical feature of an intercalation complex. This is due to an elastic deformation of the host layer upon lattice expansion. The maintenance of the lepidocrocite-type structure of titanium oxide upon intercalation was clearly evidenced by Ti K-edge X-ray absorption near edge structure (XANES) analysis. An electrostatic interaction between negatively charged titanium oxide nanosheets and positively charged nickel hydroxide clusters is a driving force for the formation of well-ordered heterostructure. The study also showed that the present intercalation hybridization route is expected to produce many porous metal oxide-based nanocomposites with multifunctional catalytic activities.

Original languageEnglish
Pages (from-to)539-542
Number of pages4
JournalAdvanced Materials
Volume20
Issue number3
DOIs
Publication statusPublished - 2008 Feb 4

Fingerprint

Nickel oxide
Epoxidation
Titanium oxides
Photolysis
Nanocomposites
Intercalation
Catalysts
Nanosheets
X ray absorption
Elastic deformation
Coulomb interactions
Nickel
Oxides
Heterojunctions
Catalyst activity
Metals
Nanoparticles
titanium dioxide
nickel monoxide

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Kim, Tae Woo ; Hwang, Seong Ju ; Jhung, Sung Hwa ; Chang, Jong San ; Park, Hyunwoong ; Choi, Wonyong ; Choy, Jin Ho. / Bifunctional heterogeneous catalysts for selective epoxidation and visible light driven photolysis : Nickel oxide-containing porous nanocomposite. In: Advanced Materials. 2008 ; Vol. 20, No. 3. pp. 539-542.
@article{b5c8f46cf3b742728037e2caef32a36b,
title = "Bifunctional heterogeneous catalysts for selective epoxidation and visible light driven photolysis: Nickel oxide-containing porous nanocomposite",
abstract = "A study was conducted to synthesize multifunctional heterogeneous catalysts of nickel-oxide-containing porous nanocomposites through the coupling of the nickel oxide nanoparticles with the titanium oxide nanosheets. The XRD peaks of the nanocomposite appear broader than those of the protonated titanium oxide, which is a typical feature of an intercalation complex. This is due to an elastic deformation of the host layer upon lattice expansion. The maintenance of the lepidocrocite-type structure of titanium oxide upon intercalation was clearly evidenced by Ti K-edge X-ray absorption near edge structure (XANES) analysis. An electrostatic interaction between negatively charged titanium oxide nanosheets and positively charged nickel hydroxide clusters is a driving force for the formation of well-ordered heterostructure. The study also showed that the present intercalation hybridization route is expected to produce many porous metal oxide-based nanocomposites with multifunctional catalytic activities.",
author = "Kim, {Tae Woo} and Hwang, {Seong Ju} and Jhung, {Sung Hwa} and Chang, {Jong San} and Hyunwoong Park and Wonyong Choi and Choy, {Jin Ho}",
year = "2008",
month = "2",
day = "4",
doi = "10.1002/adma.200701677",
language = "English",
volume = "20",
pages = "539--542",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-VCH Verlag",
number = "3",

}

Bifunctional heterogeneous catalysts for selective epoxidation and visible light driven photolysis : Nickel oxide-containing porous nanocomposite. / Kim, Tae Woo; Hwang, Seong Ju; Jhung, Sung Hwa; Chang, Jong San; Park, Hyunwoong; Choi, Wonyong; Choy, Jin Ho.

In: Advanced Materials, Vol. 20, No. 3, 04.02.2008, p. 539-542.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Bifunctional heterogeneous catalysts for selective epoxidation and visible light driven photolysis

T2 - Nickel oxide-containing porous nanocomposite

AU - Kim, Tae Woo

AU - Hwang, Seong Ju

AU - Jhung, Sung Hwa

AU - Chang, Jong San

AU - Park, Hyunwoong

AU - Choi, Wonyong

AU - Choy, Jin Ho

PY - 2008/2/4

Y1 - 2008/2/4

N2 - A study was conducted to synthesize multifunctional heterogeneous catalysts of nickel-oxide-containing porous nanocomposites through the coupling of the nickel oxide nanoparticles with the titanium oxide nanosheets. The XRD peaks of the nanocomposite appear broader than those of the protonated titanium oxide, which is a typical feature of an intercalation complex. This is due to an elastic deformation of the host layer upon lattice expansion. The maintenance of the lepidocrocite-type structure of titanium oxide upon intercalation was clearly evidenced by Ti K-edge X-ray absorption near edge structure (XANES) analysis. An electrostatic interaction between negatively charged titanium oxide nanosheets and positively charged nickel hydroxide clusters is a driving force for the formation of well-ordered heterostructure. The study also showed that the present intercalation hybridization route is expected to produce many porous metal oxide-based nanocomposites with multifunctional catalytic activities.

AB - A study was conducted to synthesize multifunctional heterogeneous catalysts of nickel-oxide-containing porous nanocomposites through the coupling of the nickel oxide nanoparticles with the titanium oxide nanosheets. The XRD peaks of the nanocomposite appear broader than those of the protonated titanium oxide, which is a typical feature of an intercalation complex. This is due to an elastic deformation of the host layer upon lattice expansion. The maintenance of the lepidocrocite-type structure of titanium oxide upon intercalation was clearly evidenced by Ti K-edge X-ray absorption near edge structure (XANES) analysis. An electrostatic interaction between negatively charged titanium oxide nanosheets and positively charged nickel hydroxide clusters is a driving force for the formation of well-ordered heterostructure. The study also showed that the present intercalation hybridization route is expected to produce many porous metal oxide-based nanocomposites with multifunctional catalytic activities.

UR - http://www.scopus.com/inward/record.url?scp=44149088944&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44149088944&partnerID=8YFLogxK

U2 - 10.1002/adma.200701677

DO - 10.1002/adma.200701677

M3 - Article

AN - SCOPUS:44149088944

VL - 20

SP - 539

EP - 542

JO - Advanced Materials

JF - Advanced Materials

SN - 0935-9648

IS - 3

ER -