Low Temperature Catalytic Water Gas Shift in an Electric Field

Yasushi Sekine, Kodai Yamagishi, Yukako Nogami, Ryo Manabe, Kazumasa Oshima, Shuhei Ogo

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Abstract: Catalytic water gas shift for hydrogen production in the temperature range of 423–873 K, was examined imposing an electric field to the catalyst bed. Reaction trends were investigated based on thermodynamic equilibrium and chemical kinetic law. Pt/La–ZrO2 was chosen as an active catalyst through our screening tests, and the effect of the electric field on the catalytic activity was investigated by changing reaction temperatures and applied electric currents. Although the reaction was ruled by thermodynamic equilibrium at high temperatures, drastic promotion of the reaction by applying the electric field was observed at low temperatures in a kinetic region. Drastic decrease of apparent activation energy for WGS was observed by imposing the electric field to the catalyst bed. Various isotopic transient tests revealed that the reaction mechanism changed by the application of electric field, and redox mechanism using surface lattice oxygen played an important role in case of the catalytic WGS in the electric field. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalCatalysis Letters
DOIs
Publication statusAccepted/In press - 2016 May 24

Fingerprint

Water gas shift
Electric fields
Temperature
Catalysts
Thermodynamics
Electric currents
Hydrogen production
Reaction kinetics
Catalyst activity
Screening
Activation energy
Oxygen
Kinetics

Keywords

  • Catalytic reaction
  • Electric field
  • Water gas shift

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Low Temperature Catalytic Water Gas Shift in an Electric Field. / Sekine, Yasushi; Yamagishi, Kodai; Nogami, Yukako; Manabe, Ryo; Oshima, Kazumasa; Ogo, Shuhei.

In: Catalysis Letters, 24.05.2016, p. 1-6.

Research output: Contribution to journalArticle

Sekine, Yasushi ; Yamagishi, Kodai ; Nogami, Yukako ; Manabe, Ryo ; Oshima, Kazumasa ; Ogo, Shuhei. / Low Temperature Catalytic Water Gas Shift in an Electric Field. In: Catalysis Letters. 2016 ; pp. 1-6.
@article{b478ed16e86246268b41eb96ee470af1,
title = "Low Temperature Catalytic Water Gas Shift in an Electric Field",
abstract = "Abstract: Catalytic water gas shift for hydrogen production in the temperature range of 423–873 K, was examined imposing an electric field to the catalyst bed. Reaction trends were investigated based on thermodynamic equilibrium and chemical kinetic law. Pt/La–ZrO2 was chosen as an active catalyst through our screening tests, and the effect of the electric field on the catalytic activity was investigated by changing reaction temperatures and applied electric currents. Although the reaction was ruled by thermodynamic equilibrium at high temperatures, drastic promotion of the reaction by applying the electric field was observed at low temperatures in a kinetic region. Drastic decrease of apparent activation energy for WGS was observed by imposing the electric field to the catalyst bed. Various isotopic transient tests revealed that the reaction mechanism changed by the application of electric field, and redox mechanism using surface lattice oxygen played an important role in case of the catalytic WGS in the electric field. Graphical Abstract: [Figure not available: see fulltext.]",
keywords = "Catalytic reaction, Electric field, Water gas shift",
author = "Yasushi Sekine and Kodai Yamagishi and Yukako Nogami and Ryo Manabe and Kazumasa Oshima and Shuhei Ogo",
year = "2016",
month = "5",
day = "24",
doi = "10.1007/s10562-016-1765-y",
language = "English",
pages = "1--6",
journal = "Catalysis Letters",
issn = "1011-372X",
publisher = "Springer Netherlands",

}

TY - JOUR

T1 - Low Temperature Catalytic Water Gas Shift in an Electric Field

AU - Sekine, Yasushi

AU - Yamagishi, Kodai

AU - Nogami, Yukako

AU - Manabe, Ryo

AU - Oshima, Kazumasa

AU - Ogo, Shuhei

PY - 2016/5/24

Y1 - 2016/5/24

N2 - Abstract: Catalytic water gas shift for hydrogen production in the temperature range of 423–873 K, was examined imposing an electric field to the catalyst bed. Reaction trends were investigated based on thermodynamic equilibrium and chemical kinetic law. Pt/La–ZrO2 was chosen as an active catalyst through our screening tests, and the effect of the electric field on the catalytic activity was investigated by changing reaction temperatures and applied electric currents. Although the reaction was ruled by thermodynamic equilibrium at high temperatures, drastic promotion of the reaction by applying the electric field was observed at low temperatures in a kinetic region. Drastic decrease of apparent activation energy for WGS was observed by imposing the electric field to the catalyst bed. Various isotopic transient tests revealed that the reaction mechanism changed by the application of electric field, and redox mechanism using surface lattice oxygen played an important role in case of the catalytic WGS in the electric field. Graphical Abstract: [Figure not available: see fulltext.]

AB - Abstract: Catalytic water gas shift for hydrogen production in the temperature range of 423–873 K, was examined imposing an electric field to the catalyst bed. Reaction trends were investigated based on thermodynamic equilibrium and chemical kinetic law. Pt/La–ZrO2 was chosen as an active catalyst through our screening tests, and the effect of the electric field on the catalytic activity was investigated by changing reaction temperatures and applied electric currents. Although the reaction was ruled by thermodynamic equilibrium at high temperatures, drastic promotion of the reaction by applying the electric field was observed at low temperatures in a kinetic region. Drastic decrease of apparent activation energy for WGS was observed by imposing the electric field to the catalyst bed. Various isotopic transient tests revealed that the reaction mechanism changed by the application of electric field, and redox mechanism using surface lattice oxygen played an important role in case of the catalytic WGS in the electric field. Graphical Abstract: [Figure not available: see fulltext.]

KW - Catalytic reaction

KW - Electric field

KW - Water gas shift

UR - http://www.scopus.com/inward/record.url?scp=84969921495&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84969921495&partnerID=8YFLogxK

U2 - 10.1007/s10562-016-1765-y

DO - 10.1007/s10562-016-1765-y

M3 - Article

SP - 1

EP - 6

JO - Catalysis Letters

JF - Catalysis Letters

SN - 1011-372X

ER -