高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (1): 108-111.

• 研究论文 • 上一篇    下一篇

甲醇在氧化锌表面吸附的研究

王谋华1,2, 董庆年1, 张文郁1, 魏伟1, 孙予罕1   

  1. 1. 中国科学院山西煤炭化学研究所, 煤转化国家重点实验室, 太原 030001;
    2. 中国科学院研究生院, 北京 100039
  • 收稿日期:2004-12-30 出版日期:2006-01-10 发布日期:2006-01-10
  • 通讯作者: 孙予罕(1962年出生), 男, 博士, 研究员, 博士生导师, 从事催化化学和材料科学研究. E-mail: yhsun@sxicc.ac.cn
  • 基金资助:

    国家杰出青年基金(批准号: 29625307)资助

Adsorption of Methanol on Surface of Zinc Oxide

WANG MouHua1,2, DONG QingNian1, ZHANG WenYu1,2, WEI Wei1, SUN YuHan1   

  1. 1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry,
    Chinese Academy of Sciences, Taiyuan 030001, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China)
  • Received:2004-12-30 Online:2006-01-10 Published:2006-01-10
  • Contact: SUN YuHan,E-mail: yhsun@sxicc.ac.cn

摘要:

摘要用原位红外和脉冲实验研究了甲醇在氧化锌表面的吸附行为. FTIR结果表明, 甲醇吸附于氧化锌上易生成甲氧基, 且其生成量随着吸附温度的提高而增加. 进一步的研究结果表明, 甲氧基是由甲醇同氧化锌表面的羟基反应生成的, 将其暴露于水蒸汽中后很快消失. 脉冲实验发现, 氧化锌上脉冲甲醇时产生水, 再脉冲水则产生甲醇. 因此甲醇在氧化锌表面吸附生成甲氧基和水的反应是可逆的.

关键词: 关键词氧化锌; 甲醇; 水; IR光谱; 吸附; 脉冲反应

Abstract:

AbstractThe adsorption of methanol on the surface of zinc oxide was investigated by in situ FTIR and pulse reaction. The FTIR results show that methoxyl group was formed from the adsorbed methanol on the surface of zinc oxide, and its amount increased with increasing adsorption temperature. Further investigation indicates that methoxyl group was produced only by the reaction of methanol with surface hydroxyl group. It was also revealed that methoxyl group vanished quickly when it was exposed to water vapor. In the pulse reaction, water was detected while methanol was adsorbed on the the surface of zinc oxide, and then methanol was found while methoxy group contacted with water. Thus, the reaction of methanol with hydroxy group on the surface of zinc oxide surface was reversible.

Key words: KeywordsZnO; Methanol; Water, IR Spectrum; Adsorption; Pulse reaction

中图分类号: