Ni-substituted LaMnO 3 perovskites for ethanol oxidation

Yi Chen Hou, Ming Wei Ding, Shih Kang Liu, Shin Kuan Wu, Yu-Chuan Lin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The B-site substitution of LaMnO 3 perovskites by Ni was investigated under the oxidation of ethanol. Proper characterization techniques, including BET surface area measurement, XRD, FTIR, XPS, TPR, O 2 -TPD, and FE-SEM experiments were performed to survey the physicochemical properties of perovskites. The results reveal that up to 25% of Mn can be replaced by Ni; beyond this limit, segregated NiO x can be synthesized. Inserting Ni into the solid solution of perovskite yields unique bridging lattice oxygen sites (Ni-O-Mn) in Ni-doped LaMnO 3 . Based on catalytic performance in ethanol oxidation, the Ni-O-Mn sites are likely to promote ethanol conversion and the oxidation of acetaldehyde to CO 2 at low reaction temperatures. The abatement of intermediates over Ni-O-Mn sites is hypothesized and a plausible reaction pathway is proposed. Moreover, the time on-stream testing revealed that the interaction between Ni and Mn is likely to enhance perovskite's thermal stability in ethanol oxidation.

Original languageEnglish
Pages (from-to)5329-5338
Number of pages10
JournalRSC Advances
Volume4
Issue number11
DOIs
Publication statusPublished - 2014 Jan 17

Fingerprint

Ethanol
Oxidation
Perovskite
Acetaldehyde
Carbon Monoxide
Temperature programmed desorption
Solid solutions
Thermodynamic stability
Substitution reactions
X ray photoelectron spectroscopy
Oxygen
Scanning electron microscopy
Testing
Experiments
Temperature
perovskite

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Hou, Yi Chen ; Ding, Ming Wei ; Liu, Shih Kang ; Wu, Shin Kuan ; Lin, Yu-Chuan. / Ni-substituted LaMnO 3 perovskites for ethanol oxidation In: RSC Advances. 2014 ; Vol. 4, No. 11. pp. 5329-5338.
@article{c451a4e52b99451980fec4f7c43e5262,
title = "Ni-substituted LaMnO 3 perovskites for ethanol oxidation",
abstract = "The B-site substitution of LaMnO 3 perovskites by Ni was investigated under the oxidation of ethanol. Proper characterization techniques, including BET surface area measurement, XRD, FTIR, XPS, TPR, O 2 -TPD, and FE-SEM experiments were performed to survey the physicochemical properties of perovskites. The results reveal that up to 25{\%} of Mn can be replaced by Ni; beyond this limit, segregated NiO x can be synthesized. Inserting Ni into the solid solution of perovskite yields unique bridging lattice oxygen sites (Ni-O-Mn) in Ni-doped LaMnO 3 . Based on catalytic performance in ethanol oxidation, the Ni-O-Mn sites are likely to promote ethanol conversion and the oxidation of acetaldehyde to CO 2 at low reaction temperatures. The abatement of intermediates over Ni-O-Mn sites is hypothesized and a plausible reaction pathway is proposed. Moreover, the time on-stream testing revealed that the interaction between Ni and Mn is likely to enhance perovskite's thermal stability in ethanol oxidation.",
author = "Hou, {Yi Chen} and Ding, {Ming Wei} and Liu, {Shih Kang} and Wu, {Shin Kuan} and Yu-Chuan Lin",
year = "2014",
month = "1",
day = "17",
doi = "10.1039/c3ra46323k",
language = "English",
volume = "4",
pages = "5329--5338",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "11",

}

Hou, YC, Ding, MW, Liu, SK, Wu, SK & Lin, Y-C 2014, ' Ni-substituted LaMnO 3 perovskites for ethanol oxidation ', RSC Advances, vol. 4, no. 11, pp. 5329-5338. https://doi.org/10.1039/c3ra46323k

Ni-substituted LaMnO 3 perovskites for ethanol oxidation . / Hou, Yi Chen; Ding, Ming Wei; Liu, Shih Kang; Wu, Shin Kuan; Lin, Yu-Chuan.

In: RSC Advances, Vol. 4, No. 11, 17.01.2014, p. 5329-5338.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ni-substituted LaMnO 3 perovskites for ethanol oxidation

AU - Hou, Yi Chen

AU - Ding, Ming Wei

AU - Liu, Shih Kang

AU - Wu, Shin Kuan

AU - Lin, Yu-Chuan

PY - 2014/1/17

Y1 - 2014/1/17

N2 - The B-site substitution of LaMnO 3 perovskites by Ni was investigated under the oxidation of ethanol. Proper characterization techniques, including BET surface area measurement, XRD, FTIR, XPS, TPR, O 2 -TPD, and FE-SEM experiments were performed to survey the physicochemical properties of perovskites. The results reveal that up to 25% of Mn can be replaced by Ni; beyond this limit, segregated NiO x can be synthesized. Inserting Ni into the solid solution of perovskite yields unique bridging lattice oxygen sites (Ni-O-Mn) in Ni-doped LaMnO 3 . Based on catalytic performance in ethanol oxidation, the Ni-O-Mn sites are likely to promote ethanol conversion and the oxidation of acetaldehyde to CO 2 at low reaction temperatures. The abatement of intermediates over Ni-O-Mn sites is hypothesized and a plausible reaction pathway is proposed. Moreover, the time on-stream testing revealed that the interaction between Ni and Mn is likely to enhance perovskite's thermal stability in ethanol oxidation.

AB - The B-site substitution of LaMnO 3 perovskites by Ni was investigated under the oxidation of ethanol. Proper characterization techniques, including BET surface area measurement, XRD, FTIR, XPS, TPR, O 2 -TPD, and FE-SEM experiments were performed to survey the physicochemical properties of perovskites. The results reveal that up to 25% of Mn can be replaced by Ni; beyond this limit, segregated NiO x can be synthesized. Inserting Ni into the solid solution of perovskite yields unique bridging lattice oxygen sites (Ni-O-Mn) in Ni-doped LaMnO 3 . Based on catalytic performance in ethanol oxidation, the Ni-O-Mn sites are likely to promote ethanol conversion and the oxidation of acetaldehyde to CO 2 at low reaction temperatures. The abatement of intermediates over Ni-O-Mn sites is hypothesized and a plausible reaction pathway is proposed. Moreover, the time on-stream testing revealed that the interaction between Ni and Mn is likely to enhance perovskite's thermal stability in ethanol oxidation.

UR - http://www.scopus.com/inward/record.url?scp=84892158093&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84892158093&partnerID=8YFLogxK

U2 - 10.1039/c3ra46323k

DO - 10.1039/c3ra46323k

M3 - Article

VL - 4

SP - 5329

EP - 5338

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 11

ER -