Oxygen adsorption/desorption behavior of YBaCo4O7+δ and its application to oxygen removal from nitrogen

HAO; Haoshan

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Oxygen adsorption/desorption behavior of YBaCo4O7+δ and its application to oxygen removal from nitrogen

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摘要

A new medium-temperature (200-400℃) adsorbent material for oxygen removal and air separation, YBaCo4O7+β, was prepared by the solid-state reaction method. This new adsorbent could adsorb a large quantity of oxygen in the temperature range of 200-370 ℃. Ad-sorbed oxygen could be released by raising temperature over 400 ℃ or by switching the atmosphere from oxygen to nitrogen. This oxygen adsorption and desorption process had good reproducibility. Taking advantage of this unique oxygen intake/release behavior, a nitrogen puri-fication process was investigated. The results showed that YBaCo4O7+δ material was a promising candidate for the oxygen sorption process and could be used to produce high-purity nitrogen or to remove trace oxygen from other gases.

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来源
《中国稀土学报：英文版》 |2009年第005期|P.815-818|共4页
作者
HAO; Haoshan;
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作者单位

Key;

Laboratory;

of;

Material;

Physics;

of;

Ministry;

of;

Education,;

Zhengzhou;

University,;

Zhengzhou;

450052,;

China;

Department;

of;

Mathematical;

and;

Physical;

Sciences,;

Henan;

Institute;

of;

Engineering,;

Zhengzhou;

451191,;

China;

Department;

of;

Chemistry,;

Zhengzhou;

University,;

Zhengzhou;

450052,;

China;

Department;

of;

Mathematical;

and;

Physical;

Sciences,;

Henan;

Institute;

of;

Engineering,;

Zhengzhou;

451191,;

China;

Department;

of;

Mathematical;

and;

Physical;

Sciences,;

Henan;

Institute;

of;

Engineering,;

Zhengzhou;

451191,;

China;

Key;

Laboratory;

of;

Material;

Physics;

of;

Ministry;

of;

Education,;

Zhengzhou;

University,;

Zhengzhou;

450052,;

China;

Department;

of;

Chemistry,;

Zhengzhou;

University,;

Zhengzhou;

450052,;

China;

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原文格式 PDF
正文语种 CHI
中图分类 TF845-55;
关键词
YBaCo4O7+δ; oxygen; adsorption/desorption; adsorbent; nitrogen; purification; rare; earths;

机译：YBaCo4O7 +δ;氧;吸附/解吸;吸附剂;氮;纯化;稀有;地球;

Oxygen adsorption/desorption behavior of YBaCo4O7+δ and its application to oxygen removal from nitrogen

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