Hydrogen production via urea electrolysis using a gel electrolyte

被引：97

作者：

King, Rebecca L. ^{[1
]}

Botte, Gerardine G. ^{[1
]}

机构：

[1] Ohio Univ, Dept Chem & Biomol Engn, Ctr Electrochem Engn Res, Athens, OH 45701 USA

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 05期

关键词：

Urea electrolysis; Urea electrolytic cell; On-board hydrogen production; Hydrogen storage; Fuel cells; POLYMER ELECTROLYTES; POLY(ETHYLENE OXIDE); WASTE-WATER; OXIDATION; ACID; CONDUCTIVITY; AMMONIA; NITRATE;

D O I：

10.1016/j.jpowsour.2010.11.006

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 technology was demonstrated for the production of hydrogen and other valuable products (nitrogen and clean water) through the electrochemical oxidation of urea in alkaline media. In addition, this process remediates toxic nitrates and prevents gaseous ammonia emissions. Improvements to urea electrolysis were made through replacement of aqueous KOH electrolyte with a poly(acrylic acid) gel electrolyte. A small volume of poly(acrylic acid) gel electrolyte was used to accomplish the electrochemical oxidation of urea improving on the previous requirement for large amounts of aqueous potassium hydroxide. The effect of gel composition was investigated by varying polymer content and KOH concentrations within the polymer matrix in order to determine which is the most advantageous for the electrochemical oxidation of urea and production of hydrogen. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2773 / 2778

页数：6

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