15 年

金牌会员

已认证

每周分享

今天给大家分享的是2014年4月份 《Journal of Power Sources》上发表的一篇名为:Methanol synthesis from CO2 hydrogenation over La–M–Cu–Zn–O (M = Y, Ce, Mg, Zr) catalysts derived from perovskite-type precursors

 文章摘要如下:

A series of La–M–Cu–Zn–O (M = Y, Ce, Mg, Zr) based perovskite-type catalysts are prepared by sol–gel method and characterized by XRD, BET, TPR, N2O-adsorption, XPS and TPD techniques. The results indicate that all the catalysts exhibit La2CuO4 perovskite structure. The addition of Ce, Mg and Zr lead to smaller particles, lower reduction temperature, higher Cu dispersion, larger amount of hydrogen desorption at low temperature and more amount of basic sites. However, Y has less affects on the physicochemical properties. The catalysts derived from perovskite-type precursors show high selectivity for methanol, which is correlated with the Cuα+ species that exists in the reduced catalysts. More exposed Cu surface area is favorable for high CO2 conversion.

 该文章中材料表征采用的是美国麦克仪器AutoChem 2920

 详情可参考下面链接:

http://www.sciencedirect.com/science/article/pii/S0378775313018648

 

美国麦克仪器  2015-02-06  |  阅读:1254
最新动态
更多  
推荐产品 供应产品

分类

留言咨询

留言类型

需求简述

联系信息

联系人

单位名称

电子邮箱

手机号

图形验证码

点击提交代表您同意《用户服务协议》《隐私协议》