Chemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphere

Norliza Dzakaria, Maratun Najiha Abu Tahari, Fairous Salleh, Alinda Samsuri, Masitah Abdul Halim Azizi, Tengku Shafazila Tengku Saharuddin, Muhammad Rahimi Yusop, Wan Nor Roslam Wan Isahak, Mohamed Wahab Mohamed Hisham, Mohd Ambar Yarmo

Research output: Contribution to journalArticle

Abstract

The reduction behavior of nickel oxide (NiO) and zirconia (Zr) doped NiO (Zr/NiO) was investigated using temperature programmed reduction (TPR) using carbon monoxide (CO) as a reductant and then characterized using X-ray diffraction (XRD), nitrogen absorption isotherm using BET technique and FESEM-EDX. The reduction characteristics of NiO to Ni were examined up to temperature 700 °C and continued with isothermal reduction by 40 vol. % CO in nitrogen. The studies show that the TPR profile of doped NiO slightly shifts to a higher temperature as compared to the undoped NiO which begins at 387 °C and maximum at 461 °C. The interaction between ZrO2 with Ni leads to this slightly increase by 21 to 56 °C of the reduction temperature. Analysis using XRD confirmed, the increasing percentage of Zr from 5 to 15% speed up the reducibility of NiO to Ni at temperature 550 °C. At this temperature, undoped NiO and 5% Zr/NiO still show some crystallinity present of NiO, but 15% Zr/NiO shows no NiO in crystalline form. Based on the results of physical properties, the surface area for 5% Zr/NiO and 15% Zr/NiO was slightly increased from 6.6 to 16.7 m2 /g compared to undoped NiO and for FESEM-EDX, the particles size also increased after doped with Zr on to NiO where 5% Zr/NiO particles were 110 ± 5 nm and 15% Zr/NiO 140 ± 2 nm. This confirmed that the addition of Zr to NiO has a remarkable chemical effect on complete reduction NiO to Ni at low reduction temperature (550 °C). This might be due to the formation of intermetallic between Zr/NiO which have new chemical and physical properties.

Original languageEnglish
Pages (from-to)105-112
Number of pages8
JournalIndonesian Journal of Chemistry
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

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Carbon Monoxide
Nickel
Zirconia
Temperature
zirconium oxide
nickel monoxide
Energy dispersive spectroscopy
Nitrogen
Physical properties
Reducing Agents

Keywords

  • Carbon monoxide
  • Nickel
  • Reduction
  • Temperature programmed reduction
  • Zirconia

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Chemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphere. / Dzakaria, Norliza; Abu Tahari, Maratun Najiha; Salleh, Fairous; Samsuri, Alinda; Azizi, Masitah Abdul Halim; Saharuddin, Tengku Shafazila Tengku; Yusop, Muhammad Rahimi; Isahak, Wan Nor Roslam Wan; Hisham, Mohamed Wahab Mohamed; Yarmo, Mohd Ambar.

In: Indonesian Journal of Chemistry, Vol. 20, No. 1, 01.01.2020, p. 105-112.

Research output: Contribution to journalArticle

Dzakaria, N, Abu Tahari, MN, Salleh, F, Samsuri, A, Azizi, MAH, Saharuddin, TST, Yusop, MR, Isahak, WNRW, Hisham, MWM & Yarmo, MA 2020, 'Chemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphere', Indonesian Journal of Chemistry, vol. 20, no. 1, pp. 105-112. https://doi.org/10.22146/ijc.40891
Dzakaria, Norliza ; Abu Tahari, Maratun Najiha ; Salleh, Fairous ; Samsuri, Alinda ; Azizi, Masitah Abdul Halim ; Saharuddin, Tengku Shafazila Tengku ; Yusop, Muhammad Rahimi ; Isahak, Wan Nor Roslam Wan ; Hisham, Mohamed Wahab Mohamed ; Yarmo, Mohd Ambar. / Chemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphere. In: Indonesian Journal of Chemistry. 2020 ; Vol. 20, No. 1. pp. 105-112.
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abstract = "The reduction behavior of nickel oxide (NiO) and zirconia (Zr) doped NiO (Zr/NiO) was investigated using temperature programmed reduction (TPR) using carbon monoxide (CO) as a reductant and then characterized using X-ray diffraction (XRD), nitrogen absorption isotherm using BET technique and FESEM-EDX. The reduction characteristics of NiO to Ni were examined up to temperature 700 °C and continued with isothermal reduction by 40 vol. {\%} CO in nitrogen. The studies show that the TPR profile of doped NiO slightly shifts to a higher temperature as compared to the undoped NiO which begins at 387 °C and maximum at 461 °C. The interaction between ZrO2 with Ni leads to this slightly increase by 21 to 56 °C of the reduction temperature. Analysis using XRD confirmed, the increasing percentage of Zr from 5 to 15{\%} speed up the reducibility of NiO to Ni at temperature 550 °C. At this temperature, undoped NiO and 5{\%} Zr/NiO still show some crystallinity present of NiO, but 15{\%} Zr/NiO shows no NiO in crystalline form. Based on the results of physical properties, the surface area for 5{\%} Zr/NiO and 15{\%} Zr/NiO was slightly increased from 6.6 to 16.7 m2 /g compared to undoped NiO and for FESEM-EDX, the particles size also increased after doped with Zr on to NiO where 5{\%} Zr/NiO particles were 110 ± 5 nm and 15{\%} Zr/NiO 140 ± 2 nm. This confirmed that the addition of Zr to NiO has a remarkable chemical effect on complete reduction NiO to Ni at low reduction temperature (550 °C). This might be due to the formation of intermetallic between Zr/NiO which have new chemical and physical properties.",
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AU - Azizi, Masitah Abdul Halim

AU - Saharuddin, Tengku Shafazila Tengku

AU - Yusop, Muhammad Rahimi

AU - Isahak, Wan Nor Roslam Wan

AU - Hisham, Mohamed Wahab Mohamed

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AB - The reduction behavior of nickel oxide (NiO) and zirconia (Zr) doped NiO (Zr/NiO) was investigated using temperature programmed reduction (TPR) using carbon monoxide (CO) as a reductant and then characterized using X-ray diffraction (XRD), nitrogen absorption isotherm using BET technique and FESEM-EDX. The reduction characteristics of NiO to Ni were examined up to temperature 700 °C and continued with isothermal reduction by 40 vol. % CO in nitrogen. The studies show that the TPR profile of doped NiO slightly shifts to a higher temperature as compared to the undoped NiO which begins at 387 °C and maximum at 461 °C. The interaction between ZrO2 with Ni leads to this slightly increase by 21 to 56 °C of the reduction temperature. Analysis using XRD confirmed, the increasing percentage of Zr from 5 to 15% speed up the reducibility of NiO to Ni at temperature 550 °C. At this temperature, undoped NiO and 5% Zr/NiO still show some crystallinity present of NiO, but 15% Zr/NiO shows no NiO in crystalline form. Based on the results of physical properties, the surface area for 5% Zr/NiO and 15% Zr/NiO was slightly increased from 6.6 to 16.7 m2 /g compared to undoped NiO and for FESEM-EDX, the particles size also increased after doped with Zr on to NiO where 5% Zr/NiO particles were 110 ± 5 nm and 15% Zr/NiO 140 ± 2 nm. This confirmed that the addition of Zr to NiO has a remarkable chemical effect on complete reduction NiO to Ni at low reduction temperature (550 °C). This might be due to the formation of intermetallic between Zr/NiO which have new chemical and physical properties.

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