Thermal stability studies of zeolites A and X synthesized from South African coal fly ash

Nicholas M. Musyoka; Leslie F. Petrik; Eric Hums; Andreas Kuhnt; Wilhelm Schwieger

doi:10.1007/s11164-013-1211-3

Thermal stability studies of zeolites A and X synthesized from South African coal fly ash

Nicholas M. Musyoka, Leslie F. Petrik, Eric Hums, Andreas Kuhnt, Wilhelm Schwieger

Research output: Journal Publication › Article › peer-review

89 Citations (Scopus)

Abstract

The thermal stability of zeolites A and X synthesized from coal fly ash was studied by evaluation of TGA-DTA curves obtained on increasing the temperature and by in-situ temperature-programmed XRD analysis. It was found that zeolites A and X were both stable up to approximately 800 °C and retained their characteristic diffraction peaks up to 440 °C, meaning the crystal structure was still stable. Of particular interest was that zeolite X, which has a unique hierarchical morphology, was thermally stable and was, hence, suitable for applications requiring elevated temperatures, for example catalysis and pollution control.

Original language	English
Pages (from-to)	575-582
Number of pages	8
Journal	Research on Chemical Intermediates
Volume	41
Issue number	2
DOIs	https://doi.org/10.1007/s11164-013-1211-3
Publication status	Published - Feb 2015
Externally published	Yes

Keywords

Fly ash
In-situ XRD
Thermal stability
Zeolites

ASJC Scopus subject areas

General Chemistry

Access to Document

10.1007/s11164-013-1211-3

Cite this

@article{16a1eb62f2cc4d07b8323ba9107ae0f4,

title = "Thermal stability studies of zeolites A and X synthesized from South African coal fly ash",

abstract = "The thermal stability of zeolites A and X synthesized from coal fly ash was studied by evaluation of TGA-DTA curves obtained on increasing the temperature and by in-situ temperature-programmed XRD analysis. It was found that zeolites A and X were both stable up to approximately 800 °C and retained their characteristic diffraction peaks up to 440 °C, meaning the crystal structure was still stable. Of particular interest was that zeolite X, which has a unique hierarchical morphology, was thermally stable and was, hence, suitable for applications requiring elevated temperatures, for example catalysis and pollution control.",

keywords = "Fly ash, In-situ XRD, Thermal stability, Zeolites",

author = "Musyoka, {Nicholas M.} and Petrik, {Leslie F.} and Eric Hums and Andreas Kuhnt and Wilhelm Schwieger",

note = "Publisher Copyright: {\textcopyright} 2013 Springer Science+Business Media Dordrecht.",

year = "2015",

month = feb,

doi = "10.1007/s11164-013-1211-3",

language = "English",

volume = "41",

pages = "575--582",

journal = "Research on Chemical Intermediates",

issn = "0922-6168",

publisher = "Springer Netherlands",

number = "2",

}

TY - JOUR

T1 - Thermal stability studies of zeolites A and X synthesized from South African coal fly ash

AU - Musyoka, Nicholas M.

AU - Petrik, Leslie F.

AU - Hums, Eric

AU - Kuhnt, Andreas

AU - Schwieger, Wilhelm

PY - 2015/2

Y1 - 2015/2

N2 - The thermal stability of zeolites A and X synthesized from coal fly ash was studied by evaluation of TGA-DTA curves obtained on increasing the temperature and by in-situ temperature-programmed XRD analysis. It was found that zeolites A and X were both stable up to approximately 800 °C and retained their characteristic diffraction peaks up to 440 °C, meaning the crystal structure was still stable. Of particular interest was that zeolite X, which has a unique hierarchical morphology, was thermally stable and was, hence, suitable for applications requiring elevated temperatures, for example catalysis and pollution control.

AB - The thermal stability of zeolites A and X synthesized from coal fly ash was studied by evaluation of TGA-DTA curves obtained on increasing the temperature and by in-situ temperature-programmed XRD analysis. It was found that zeolites A and X were both stable up to approximately 800 °C and retained their characteristic diffraction peaks up to 440 °C, meaning the crystal structure was still stable. Of particular interest was that zeolite X, which has a unique hierarchical morphology, was thermally stable and was, hence, suitable for applications requiring elevated temperatures, for example catalysis and pollution control.

KW - Fly ash

KW - In-situ XRD

KW - Thermal stability

KW - Zeolites

UR - http://www.scopus.com/inward/record.url?scp=84921067324&partnerID=8YFLogxK

U2 - 10.1007/s11164-013-1211-3

DO - 10.1007/s11164-013-1211-3

M3 - Article

AN - SCOPUS:84921067324

SN - 0922-6168

VL - 41

SP - 575

EP - 582

JO - Research on Chemical Intermediates

JF - Research on Chemical Intermediates

IS - 2

ER -

Thermal stability studies of zeolites A and X synthesized from South African coal fly ash

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this