Feasibility of hydrogen production in a steam-carbon electrochemical cell

被引：23

作者：

Lee, Andrew C. ^{[1
]}

Mitchell, Reginald E. ^{[1
]}

Guer, Turgut M. ^{[2
,3
]}

机构：

[1] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[3] Direct Carbon Technol LLC, Palo Alto, CA 94301 USA

来源：

SOLID STATE IONICS | 2011年 / 192卷 / 01期

关键词：

Carbon; Hydrogen production; Steam electrolysis; Yttria stabilized zirconia; Solid oxide fuel cell; ELECTROLYSIS; GASIFICATION; CONVERSION;

D O I：

10.1016/j.ssi.2010.05.034

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A high temperature electrochemical cell with a bed of solid carbon at the anode and steam at the cathode is proposed for carbon-assisted hydrogen production. This scheme eliminates the uphill potential barrier and provides a significant reduction in the required electrical work input to produce hydrogen from steam. The electrochemical cell is made of an yttria stabilized zirconia electrolyte with porous platinum electrodes. Current-voltage measurements and gas chromatographic analysis indicate steam utilization and production of carbon-free hydrogen. Measured open circuit potentials of 0.1-0.6 V agree with theoretical values. This downhill driving force allows for spontaneous hydrogen production and cogeneration of electricity. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：607 / 610

页数：4

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