Long-term stability of sulfated hydrous titania-based electrolyte for water electrolysis

Seok Jun Kim, Takaaki Sakai, Hiroyuki Oda, Yuji Okuyama, Yumi Mizutani, Jun Ichi Hamagami, Maki Matsuka, Tatsumi Ishihara, Hiroshige Matsumoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The long-term stability in water was investigated for an inorganic proton conductor based on sulfated hydrous titania electrolyte in water electrolysis. Heat treatment temperature in the range of 400-700 °C during synthesis of the material was chosen as the critical parameter for the conductivity and stability in water. Electric resistance of the membrane electrode assembly using the sulfated hydrous titania in water and pH were investigated by the effect of heat treatment temperature on the stability of conductivity and acid detachment. TG, Fourier transform infrared spectroscopy, and energy-dispersive X-ray analysis measurements were performed to understand the amount and state of the sulfate groups on the surface of sulfated hydrous titania. Heat treatment at 650 °C was found to obtain good conduction behavior for the sulfated hydrous titania and was confirmed to work for a stable water electrolysis.

Original languageEnglish
Pages (from-to)3587-3592
Number of pages6
JournalJournal of Solid State Electrochemistry
Volume16
Issue number11
DOIs
Publication statusPublished - Nov 1 2012

Fingerprint

electrolysis
Electrolysis
Electrolytes
titanium
Titanium
electrolytes
Water
heat treatment
water
Heat treatment
Electric resistance
conductivity
Energy dispersive X ray analysis
detachment
Sulfates
Fourier transform infrared spectroscopy
Protons
sulfates
conductors
assembly

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Long-term stability of sulfated hydrous titania-based electrolyte for water electrolysis. / Kim, Seok Jun; Sakai, Takaaki; Oda, Hiroyuki; Okuyama, Yuji; Mizutani, Yumi; Hamagami, Jun Ichi; Matsuka, Maki; Ishihara, Tatsumi; Matsumoto, Hiroshige.

In: Journal of Solid State Electrochemistry, Vol. 16, No. 11, 01.11.2012, p. 3587-3592.

Research output: Contribution to journalArticle

Kim, Seok Jun ; Sakai, Takaaki ; Oda, Hiroyuki ; Okuyama, Yuji ; Mizutani, Yumi ; Hamagami, Jun Ichi ; Matsuka, Maki ; Ishihara, Tatsumi ; Matsumoto, Hiroshige. / Long-term stability of sulfated hydrous titania-based electrolyte for water electrolysis. In: Journal of Solid State Electrochemistry. 2012 ; Vol. 16, No. 11. pp. 3587-3592.
@article{cb63ab0a31024e16ba1daa3307fbbed0,
title = "Long-term stability of sulfated hydrous titania-based electrolyte for water electrolysis",
abstract = "The long-term stability in water was investigated for an inorganic proton conductor based on sulfated hydrous titania electrolyte in water electrolysis. Heat treatment temperature in the range of 400-700 °C during synthesis of the material was chosen as the critical parameter for the conductivity and stability in water. Electric resistance of the membrane electrode assembly using the sulfated hydrous titania in water and pH were investigated by the effect of heat treatment temperature on the stability of conductivity and acid detachment. TG, Fourier transform infrared spectroscopy, and energy-dispersive X-ray analysis measurements were performed to understand the amount and state of the sulfate groups on the surface of sulfated hydrous titania. Heat treatment at 650 °C was found to obtain good conduction behavior for the sulfated hydrous titania and was confirmed to work for a stable water electrolysis.",
author = "Kim, {Seok Jun} and Takaaki Sakai and Hiroyuki Oda and Yuji Okuyama and Yumi Mizutani and Hamagami, {Jun Ichi} and Maki Matsuka and Tatsumi Ishihara and Hiroshige Matsumoto",
year = "2012",
month = "11",
day = "1",
doi = "10.1007/s10008-012-1793-5",
language = "English",
volume = "16",
pages = "3587--3592",
journal = "Journal of Solid State Electrochemistry",
issn = "1432-8488",
publisher = "Springer Verlag",
number = "11",

}

TY - JOUR

T1 - Long-term stability of sulfated hydrous titania-based electrolyte for water electrolysis

AU - Kim, Seok Jun

AU - Sakai, Takaaki

AU - Oda, Hiroyuki

AU - Okuyama, Yuji

AU - Mizutani, Yumi

AU - Hamagami, Jun Ichi

AU - Matsuka, Maki

AU - Ishihara, Tatsumi

AU - Matsumoto, Hiroshige

PY - 2012/11/1

Y1 - 2012/11/1

N2 - The long-term stability in water was investigated for an inorganic proton conductor based on sulfated hydrous titania electrolyte in water electrolysis. Heat treatment temperature in the range of 400-700 °C during synthesis of the material was chosen as the critical parameter for the conductivity and stability in water. Electric resistance of the membrane electrode assembly using the sulfated hydrous titania in water and pH were investigated by the effect of heat treatment temperature on the stability of conductivity and acid detachment. TG, Fourier transform infrared spectroscopy, and energy-dispersive X-ray analysis measurements were performed to understand the amount and state of the sulfate groups on the surface of sulfated hydrous titania. Heat treatment at 650 °C was found to obtain good conduction behavior for the sulfated hydrous titania and was confirmed to work for a stable water electrolysis.

AB - The long-term stability in water was investigated for an inorganic proton conductor based on sulfated hydrous titania electrolyte in water electrolysis. Heat treatment temperature in the range of 400-700 °C during synthesis of the material was chosen as the critical parameter for the conductivity and stability in water. Electric resistance of the membrane electrode assembly using the sulfated hydrous titania in water and pH were investigated by the effect of heat treatment temperature on the stability of conductivity and acid detachment. TG, Fourier transform infrared spectroscopy, and energy-dispersive X-ray analysis measurements were performed to understand the amount and state of the sulfate groups on the surface of sulfated hydrous titania. Heat treatment at 650 °C was found to obtain good conduction behavior for the sulfated hydrous titania and was confirmed to work for a stable water electrolysis.

UR - http://www.scopus.com/inward/record.url?scp=84868628760&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84868628760&partnerID=8YFLogxK

U2 - 10.1007/s10008-012-1793-5

DO - 10.1007/s10008-012-1793-5

M3 - Article

VL - 16

SP - 3587

EP - 3592

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

SN - 1432-8488

IS - 11

ER -