Amorphous structure in Cu-Zn-V-Al oxide composite catalyst for methanol reforming

Mohd Sabri Mahmud, Zahira Yaakob, Abu Bakar Mohamad, Wan Ramli Wan Daud, Vo Nguyen Dai Viet

Research output: Contribution to journalArticle

Abstract

Cu-Zn-V-Al oxide composite catalysts were prepared using a co-precipitation method to investigate hydrogen and carbon monoxide yield of a methanol reforming reaction. The mass compositions of metals were initially determined on the Simplex Centroid statistical design. The effects of various metal compositions on the physicochemical properties of the catalyst were studied via X-ray diffractogram (XRD), temperature-programmed reduction (TPR) analyses, and reaction. XRD revealed crystals in the samples. Crystalline CuO in Cu30V30Al40 formed with the addition of zinc oxide at the metal loading below 30 wt%. A combination of zinc oxide and vanadia, however, had no Zn-V complex crystal but its scanning electron microscopy image showed the formation of string structures (AS). The catalyst that contained the AS exhibited a broad hydrogen reduction peak in the TPR analysis. Vanadium at a loading below 40 wt% with various zinc and cuprum compositions also formed small ASs and exhibited single TPR peaks. A reaction yield study revealed the optimum compositions of metal oxides when the data was fitted by response surface plots. The catalysts with high content of AS were not at the peaks however. Cu-Zn based catalysts showed the highest hydrogen yield for the reaction temperature of between 150 °C to 225 °C and vanadia-promoted catalyst with AS only appeared to be the optimum catalyst at the higher temperature.

Original languageEnglish
Pages (from-to)197-214
Number of pages18
JournalIIUM Engineering Journal
Volume19
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Reforming reactions
Catalyst
Oxides
Methanol
Composite
Catalysts
Composite materials
Metals
Hydrogen
Zinc Oxide
Zinc oxide
Chemical analysis
Crystal
Temperature
X rays
Vanadium
Carbon Monoxide
Crystals
Response Surface
Zinc

Keywords

  • Amorphous
  • Autothermal
  • Cu-Zn-V-Al
  • Fuel cell
  • Methanol reforming
  • String

ASJC Scopus subject areas

  • Computer Science(all)
  • Chemical Engineering(all)
  • Engineering(all)
  • Applied Mathematics

Cite this

Amorphous structure in Cu-Zn-V-Al oxide composite catalyst for methanol reforming. / Mahmud, Mohd Sabri; Yaakob, Zahira; Mohamad, Abu Bakar; Wan Daud, Wan Ramli; Viet, Vo Nguyen Dai.

In: IIUM Engineering Journal, Vol. 19, No. 1, 01.01.2018, p. 197-214.

Research output: Contribution to journalArticle

Mahmud, Mohd Sabri ; Yaakob, Zahira ; Mohamad, Abu Bakar ; Wan Daud, Wan Ramli ; Viet, Vo Nguyen Dai. / Amorphous structure in Cu-Zn-V-Al oxide composite catalyst for methanol reforming. In: IIUM Engineering Journal. 2018 ; Vol. 19, No. 1. pp. 197-214.
@article{ee1dab9d7383471995486173b8c7b532,
title = "Amorphous structure in Cu-Zn-V-Al oxide composite catalyst for methanol reforming",
abstract = "Cu-Zn-V-Al oxide composite catalysts were prepared using a co-precipitation method to investigate hydrogen and carbon monoxide yield of a methanol reforming reaction. The mass compositions of metals were initially determined on the Simplex Centroid statistical design. The effects of various metal compositions on the physicochemical properties of the catalyst were studied via X-ray diffractogram (XRD), temperature-programmed reduction (TPR) analyses, and reaction. XRD revealed crystals in the samples. Crystalline CuO in Cu30V30Al40 formed with the addition of zinc oxide at the metal loading below 30 wt{\%}. A combination of zinc oxide and vanadia, however, had no Zn-V complex crystal but its scanning electron microscopy image showed the formation of string structures (AS). The catalyst that contained the AS exhibited a broad hydrogen reduction peak in the TPR analysis. Vanadium at a loading below 40 wt{\%} with various zinc and cuprum compositions also formed small ASs and exhibited single TPR peaks. A reaction yield study revealed the optimum compositions of metal oxides when the data was fitted by response surface plots. The catalysts with high content of AS were not at the peaks however. Cu-Zn based catalysts showed the highest hydrogen yield for the reaction temperature of between 150 °C to 225 °C and vanadia-promoted catalyst with AS only appeared to be the optimum catalyst at the higher temperature.",
keywords = "Amorphous, Autothermal, Cu-Zn-V-Al, Fuel cell, Methanol reforming, String",
author = "Mahmud, {Mohd Sabri} and Zahira Yaakob and Mohamad, {Abu Bakar} and {Wan Daud}, {Wan Ramli} and Viet, {Vo Nguyen Dai}",
year = "2018",
month = "1",
day = "1",
doi = "10.31436/iiumej.v19i1.808",
language = "English",
volume = "19",
pages = "197--214",
journal = "IIUM Engineering Journal",
issn = "1511-788X",
publisher = "International Islamic University Malaysia",
number = "1",

}

TY - JOUR

T1 - Amorphous structure in Cu-Zn-V-Al oxide composite catalyst for methanol reforming

AU - Mahmud, Mohd Sabri

AU - Yaakob, Zahira

AU - Mohamad, Abu Bakar

AU - Wan Daud, Wan Ramli

AU - Viet, Vo Nguyen Dai

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Cu-Zn-V-Al oxide composite catalysts were prepared using a co-precipitation method to investigate hydrogen and carbon monoxide yield of a methanol reforming reaction. The mass compositions of metals were initially determined on the Simplex Centroid statistical design. The effects of various metal compositions on the physicochemical properties of the catalyst were studied via X-ray diffractogram (XRD), temperature-programmed reduction (TPR) analyses, and reaction. XRD revealed crystals in the samples. Crystalline CuO in Cu30V30Al40 formed with the addition of zinc oxide at the metal loading below 30 wt%. A combination of zinc oxide and vanadia, however, had no Zn-V complex crystal but its scanning electron microscopy image showed the formation of string structures (AS). The catalyst that contained the AS exhibited a broad hydrogen reduction peak in the TPR analysis. Vanadium at a loading below 40 wt% with various zinc and cuprum compositions also formed small ASs and exhibited single TPR peaks. A reaction yield study revealed the optimum compositions of metal oxides when the data was fitted by response surface plots. The catalysts with high content of AS were not at the peaks however. Cu-Zn based catalysts showed the highest hydrogen yield for the reaction temperature of between 150 °C to 225 °C and vanadia-promoted catalyst with AS only appeared to be the optimum catalyst at the higher temperature.

AB - Cu-Zn-V-Al oxide composite catalysts were prepared using a co-precipitation method to investigate hydrogen and carbon monoxide yield of a methanol reforming reaction. The mass compositions of metals were initially determined on the Simplex Centroid statistical design. The effects of various metal compositions on the physicochemical properties of the catalyst were studied via X-ray diffractogram (XRD), temperature-programmed reduction (TPR) analyses, and reaction. XRD revealed crystals in the samples. Crystalline CuO in Cu30V30Al40 formed with the addition of zinc oxide at the metal loading below 30 wt%. A combination of zinc oxide and vanadia, however, had no Zn-V complex crystal but its scanning electron microscopy image showed the formation of string structures (AS). The catalyst that contained the AS exhibited a broad hydrogen reduction peak in the TPR analysis. Vanadium at a loading below 40 wt% with various zinc and cuprum compositions also formed small ASs and exhibited single TPR peaks. A reaction yield study revealed the optimum compositions of metal oxides when the data was fitted by response surface plots. The catalysts with high content of AS were not at the peaks however. Cu-Zn based catalysts showed the highest hydrogen yield for the reaction temperature of between 150 °C to 225 °C and vanadia-promoted catalyst with AS only appeared to be the optimum catalyst at the higher temperature.

KW - Amorphous

KW - Autothermal

KW - Cu-Zn-V-Al

KW - Fuel cell

KW - Methanol reforming

KW - String

UR - http://www.scopus.com/inward/record.url?scp=85047883532&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047883532&partnerID=8YFLogxK

U2 - 10.31436/iiumej.v19i1.808

DO - 10.31436/iiumej.v19i1.808

M3 - Article

AN - SCOPUS:85047883532

VL - 19

SP - 197

EP - 214

JO - IIUM Engineering Journal

JF - IIUM Engineering Journal

SN - 1511-788X

IS - 1

ER -