Co-Electrolysis, Quo Vadis?

被引：11

作者：

Foit, S. R. ^{[1
]}

Dittrich, L. ^{[1
]}

Vibhu, V. ^{[1
]}

Vinke, I. C. ^{[1
]}

Eichel, R. -A. ^{[1
,2
]}

de Haart, L. G. J. ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Energy & Climate Res, Fundamental Electrochem IEK 9, D-52425 Julich, Germany

[2] Rhein Westfal TH Aachen, Inst Phys Chem, D-52074 Aachen, Germany

来源：

SOLID OXIDE FUEL CELLS 15 (SOFC-XV) | 2017年 / 78卷 / 01期

关键词：

CONVERSION; IMPEDANCE;

D O I：

10.1149/07801.3139ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work focuses on the impact of reaction parameters of high-temperature co-electrolysis of carbon dioxide and water on the electrochemical performance and product gas distribution. Experiments have been performed with a conventional electrode (cathode) supported solid oxide cell. The electrochemical performance was investigated by UV-curve measurements and impedance spectroscopy. The temperature was varied in the range of 750 to 900 degrees C. At 900 degrees C the impact of different feed gas compositions was investigated. The provided volumetric water vapor content was changed from 40% with 20% H-2 up to 47.5% with 5% H-2 in addition to the varied CO2 to H2O ratios 0, 1:1, 1:2 and 1:3. Parameter controlled syngas tailoring was shown by ramps of increasing current densities (at 0.001 mA.s(-1)) and coupled online product analysis at feed flow rates of 2, 3 and 6 nl.h(-1), confirming its principle.

引用

页码：3139 / 3147

页数：9

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