Effect of Pt addition to Ni/La0.7Sr0.3AlO 3-δ catalyst on steam reforming of toluene for hydrogen production

Daiki Mukai, Yuki Murai, Takuma Higo, Shuhei Ogo, Yukihiro Sugiura, Yasushi Sekine

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Pt/Ni/La0.7Sr0.3AlO3-δ (Pt/Ni/LSAO) catalyst showed high catalytic activity and low coke formation for hydrogen production by steam reforming of toluene, even without pre-reduction. STEM-EDX and XAFS analyses revealed that Pt and Ni formed adjacent or alloy structure. Electron donation from supported Pt to Ni was observed by XPS observation, and the improvement of reducibility of Ni by Pt addition was observed by H 2-TPR. Catalytic activity of the reduced Ni was brought by the PtNi interaction. The impregnation order of Pt and Ni affected the catalytic activity and the amount of coke formation due to the difference of the structure of supported metals. Dilution effects of Pt on Ni metal and the contact between Ni and LSAO support apparently affect the suppression of coke formation.

Original languageEnglish
Pages (from-to)157-164
Number of pages8
JournalApplied Catalysis A: General
Volume471
DOIs
Publication statusPublished - 2014 Feb 10

Fingerprint

Steam reforming
Toluene
Hydrogen production
Coke
Catalyst activity
Catalysts
Metals
Impregnation
Dilution
Energy dispersive spectroscopy
X ray photoelectron spectroscopy
Electrons

Keywords

  • Alloy structure
  • Catalytic activity without pre-reduction
  • Electron donation
  • Low coke formation
  • Pt addition

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Effect of Pt addition to Ni/La0.7Sr0.3AlO 3-δ catalyst on steam reforming of toluene for hydrogen production. / Mukai, Daiki; Murai, Yuki; Higo, Takuma; Ogo, Shuhei; Sugiura, Yukihiro; Sekine, Yasushi.

In: Applied Catalysis A: General, Vol. 471, 10.02.2014, p. 157-164.

Research output: Contribution to journalArticle

@article{a8b7388aeb2c44c6b073efefd4632709,
title = "Effect of Pt addition to Ni/La0.7Sr0.3AlO 3-δ catalyst on steam reforming of toluene for hydrogen production",
abstract = "Pt/Ni/La0.7Sr0.3AlO3-δ (Pt/Ni/LSAO) catalyst showed high catalytic activity and low coke formation for hydrogen production by steam reforming of toluene, even without pre-reduction. STEM-EDX and XAFS analyses revealed that Pt and Ni formed adjacent or alloy structure. Electron donation from supported Pt to Ni was observed by XPS observation, and the improvement of reducibility of Ni by Pt addition was observed by H 2-TPR. Catalytic activity of the reduced Ni was brought by the PtNi interaction. The impregnation order of Pt and Ni affected the catalytic activity and the amount of coke formation due to the difference of the structure of supported metals. Dilution effects of Pt on Ni metal and the contact between Ni and LSAO support apparently affect the suppression of coke formation.",
keywords = "Alloy structure, Catalytic activity without pre-reduction, Electron donation, Low coke formation, Pt addition",
author = "Daiki Mukai and Yuki Murai and Takuma Higo and Shuhei Ogo and Yukihiro Sugiura and Yasushi Sekine",
year = "2014",
month = "2",
day = "10",
doi = "10.1016/j.apcata.2013.11.032",
language = "English",
volume = "471",
pages = "157--164",
journal = "Applied Catalysis A: General",
issn = "0926-860X",
publisher = "Elsevier",

}

TY - JOUR

T1 - Effect of Pt addition to Ni/La0.7Sr0.3AlO 3-δ catalyst on steam reforming of toluene for hydrogen production

AU - Mukai, Daiki

AU - Murai, Yuki

AU - Higo, Takuma

AU - Ogo, Shuhei

AU - Sugiura, Yukihiro

AU - Sekine, Yasushi

PY - 2014/2/10

Y1 - 2014/2/10

N2 - Pt/Ni/La0.7Sr0.3AlO3-δ (Pt/Ni/LSAO) catalyst showed high catalytic activity and low coke formation for hydrogen production by steam reforming of toluene, even without pre-reduction. STEM-EDX and XAFS analyses revealed that Pt and Ni formed adjacent or alloy structure. Electron donation from supported Pt to Ni was observed by XPS observation, and the improvement of reducibility of Ni by Pt addition was observed by H 2-TPR. Catalytic activity of the reduced Ni was brought by the PtNi interaction. The impregnation order of Pt and Ni affected the catalytic activity and the amount of coke formation due to the difference of the structure of supported metals. Dilution effects of Pt on Ni metal and the contact between Ni and LSAO support apparently affect the suppression of coke formation.

AB - Pt/Ni/La0.7Sr0.3AlO3-δ (Pt/Ni/LSAO) catalyst showed high catalytic activity and low coke formation for hydrogen production by steam reforming of toluene, even without pre-reduction. STEM-EDX and XAFS analyses revealed that Pt and Ni formed adjacent or alloy structure. Electron donation from supported Pt to Ni was observed by XPS observation, and the improvement of reducibility of Ni by Pt addition was observed by H 2-TPR. Catalytic activity of the reduced Ni was brought by the PtNi interaction. The impregnation order of Pt and Ni affected the catalytic activity and the amount of coke formation due to the difference of the structure of supported metals. Dilution effects of Pt on Ni metal and the contact between Ni and LSAO support apparently affect the suppression of coke formation.

KW - Alloy structure

KW - Catalytic activity without pre-reduction

KW - Electron donation

KW - Low coke formation

KW - Pt addition

UR - http://www.scopus.com/inward/record.url?scp=84892931134&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84892931134&partnerID=8YFLogxK

U2 - 10.1016/j.apcata.2013.11.032

DO - 10.1016/j.apcata.2013.11.032

M3 - Article

VL - 471

SP - 157

EP - 164

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

SN - 0926-860X

ER -