Advanced CuCl Electrolyzer for Hydrogen Production via the Cu-Cl Thermochemical Cycle

被引：13

作者：

Kim, S. ^{[1
]}

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

Khurana, S. ^{[1
]}

Fedkin, M. V. ^{[1
]}

Wang, C. ^{[1
]}

Lvov, S. N. ^{[1
]}

机构：

[1] Penn State Univ, EMS Energy Inst, University Pk, PA 16802 USA

来源：

BATTERIES AND ENERGY TECHNOLOGY (GENERAL)- 219TH ECS MEETING | 2011年 / 35卷 / 32期

关键词：

DECOMPOSITION; WATER;

D O I：

10.1149/1.3655709

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The Cu-Cl thermochemical cycle is among the most attractive technologies for hydrogen production due to its high efficiency and moderate temperature requirements. In this study, the H-2 producing reaction of the cycle, CuCl(aq) electrolysis, was investigated in a recently developed electrolyzer using a new type of double layer Nafion 117 membrane. Enhanced MEA durability allowed the system to operate at 80 degrees C for an extended period of time with continuous anolyte cycling and regeneration. An applied potential of 0.7 V was needed to produce the current density of about 0.12 A/cm(2), and the system maintained performance over a period of 100 hours with no substantial decline of hydrogen production rates. Linear polarization and electrochemical impedance spectroscopy were used to monitor the electrolyzer performance over time. Further research is underway to optimize the process parameters and MEA fabrication to extend the electrolyzer life time and current density.

引用

页码：257 / 265

页数：9

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