DICP OpenIR
The mechanism studies of ethanol oxidation on PdO catalysts by TPSR techniques
Lin, R; Luo, MF; Xin, Q; Sun, GQ
关键词Catalytic Oxidation Of Ethanol Pdo/ce0.75zr0.25o2 Catalyst Co-tpd Ethanol-tpsr Conversion Mechanism
刊名CATALYSIS LETTERS
2004-03-01
93期:3-4页:139-144
收录类别SCI
文章类型Article
项目归属305
产权排名2;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]CARBON-MONOXIDE ; REDOX BEHAVIOR ; CEO2 ; PALLADIUM ; PERFORMANCE ; METHANE ; ZRO2 ; VOCS ; CO
英文摘要The paper studies the direct oxidation of ethanol and CO on PdO/Ce0.75Zr0.25O2 and Ce(0.75)Zr(0.2)5O(2) catalysts. Characterization of catalysts is carried out by temperature-programmed desorption (TPD), temperature-programmed surface reaction (TPSR) techniques to correlate with catalytic properties and the effect of supports on PdO. The simple Ce0.75Zr0.25O2 is in less active for ethanol and CO oxidation. After loaded with PdO, the catalytic activity enhances effectively. Combined the ethanol and CO oxidation activity with CO-TPD and ethanol-TPSR profiles, we can find the more intensive of CO2 desorption peaks, the higher it is for the oxidation of CO and ethanol. Conversion versus yield plot shows the acetaldehyde is the primary product, the secondary products are acetic acid, ethyl acetate and ethylene, and the final product is CO2. A simplified reaction scheme (not surface mechanism) is suggested that ethanol is first oxidized to form intermediate of acetaldehyde, then acetic acid, ethyl acetate and ethylene formed going with the formation of acetaldehyde, acetic acid, ethyl acetate; finally these byproducts are further oxidized to produce CO2. PdO/Ce0.75Zr0.25O2 catalyst has much higher catalytic activity not only for the oxidation of ethanol but also for CO oxidation. Thus the CO poison effect on PdO/Ce0.75Zr0.25O2 catalysts can be decreased and they have the feasibility for application in direct alcohol fuel cell (DAFC) with high efficiency.
语种英语
原文出处查看原文
WOS记录号WOS:000189175900003
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/83483
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, DMFC, Dalian 116023, Peoples R China
2.Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, SKLC, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Lin, R,Luo, MF,Xin, Q,et al. The mechanism studies of ethanol oxidation on PdO catalysts by TPSR techniques[J]. CATALYSIS LETTERS,2004,93(3-4):139-144.
APA Lin, R,Luo, MF,Xin, Q,&Sun, GQ.(2004).The mechanism studies of ethanol oxidation on PdO catalysts by TPSR techniques.CATALYSIS LETTERS,93(3-4),139-144.
MLA Lin, R,et al."The mechanism studies of ethanol oxidation on PdO catalysts by TPSR techniques".CATALYSIS LETTERS 93.3-4(2004):139-144.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2004VYSP72J0TO.pdf(220KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Lin, R]的文章
[Luo, MF]的文章
[Xin, Q]的文章
百度学术
百度学术中相似的文章
[Lin, R]的文章
[Luo, MF]的文章
[Xin, Q]的文章
必应学术
必应学术中相似的文章
[Lin, R]的文章
[Luo, MF]的文章
[Xin, Q]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。