Standard

Harvard

APA

CBE

MLA

Vancouver

Author

Bibtex

@article{b0259986700d47f19e950f4e2fab48d1,
title = "Antimony doped tin oxides and their composites with tin pyrophosphates as catalyst supports for oxygen evolution reaction in proton exchange membrane water electrolysis",
publisher = "Pergamon",
author = "Junyuan Xu and Qingfeng Li and Hansen, {Martin Kalmar} and Erik Christensen and {Tomás García}, {Antonio Luis} and Gaoyang Liu and Xindong Wang and Niels Bjerrum",
year = "2012",
doi = "10.1016/j.ijhydene.2012.09.156",
volume = "37",
number = "24",
pages = "18629--18640",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",

}

RIS

TY - CONF

T1 - Antimony doped tin oxides and their composites with tin pyrophosphates as catalyst supports for oxygen evolution reaction in proton exchange membrane water electrolysis

A1 - Xu,Junyuan

A1 - Li,Qingfeng

A1 - Hansen,Martin Kalmar

A1 - Christensen,Erik

A1 - Tomás García,Antonio Luis

A1 - Liu,Gaoyang

A1 - Wang,Xindong

A1 - Bjerrum,Niels

AU - Xu,Junyuan

AU - Li,Qingfeng

AU - Hansen,Martin Kalmar

AU - Christensen,Erik

AU - Tomás García,Antonio Luis

AU - Liu,Gaoyang

AU - Wang,Xindong

AU - Bjerrum,Niels

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - Proton exchange membrane water electrolysers operating at typically 80 °C or at further elevated temperatures suffer from insufficient catalyst activity and durability. In this work, antimony doped tin oxide nanoparticles were synthesized and further doped with an inorganic proton conducting phase based on tin pyrophosphates as the catalyst support. The materials showed an overall conductivity of 0.57 S cm−1 at 130 °C under the water vapor atmosphere with a contribution of the proton conduction. Using this composite support, iridium oxide nanoparticle catalysts were prepared and characterized in sulfuric and phosphoric acid electrolytes, showing much enhanced catalytic activity. Electrolyzer tests were conducted at both 80 °C with an Aquivion™ membrane and at 130 °C with a phosphoric acid doped Aquivion™ membrane. Significant improvement in the anodic kinetics was achieved on the composite supported catalysts at 130 °C although the electrolyzer cells showed higher ohmic resistance primarily from the membrane and catalyst layer. A durability test of electrolyzer cells was carried out at 130 °C under a current density of 400 mA cm−2 in a period of up to 760 h, showing rather good stability of the system.

AB - Proton exchange membrane water electrolysers operating at typically 80 °C or at further elevated temperatures suffer from insufficient catalyst activity and durability. In this work, antimony doped tin oxide nanoparticles were synthesized and further doped with an inorganic proton conducting phase based on tin pyrophosphates as the catalyst support. The materials showed an overall conductivity of 0.57 S cm−1 at 130 °C under the water vapor atmosphere with a contribution of the proton conduction. Using this composite support, iridium oxide nanoparticle catalysts were prepared and characterized in sulfuric and phosphoric acid electrolytes, showing much enhanced catalytic activity. Electrolyzer tests were conducted at both 80 °C with an Aquivion™ membrane and at 130 °C with a phosphoric acid doped Aquivion™ membrane. Significant improvement in the anodic kinetics was achieved on the composite supported catalysts at 130 °C although the electrolyzer cells showed higher ohmic resistance primarily from the membrane and catalyst layer. A durability test of electrolyzer cells was carried out at 130 °C under a current density of 400 mA cm−2 in a period of up to 760 h, showing rather good stability of the system.

KW - Proton exchange membrane water electrolysis

KW - Oxygen evolution reaction

KW - Iridium oxide

KW - Antimony doped tin oxide

KW - Tin pyrophosphate

KW - Composite support

U2 - 10.1016/j.ijhydene.2012.09.156

DO - 10.1016/j.ijhydene.2012.09.156

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 24

VL - 37

SP - 18629

EP - 18640

ER -