Characterization of Acid-base Property of ZrO2 by Thermal Desorption: 1. TPD Studies of Acid and Base Probes
文献类型:期刊论文
作者 | Xu Boqing1; Tsutomu, Yamaguchi2; Koze, Tanabe2; Liang Juan3; Zheng Lubin3 |
刊名 | acta physico-chimica sinica
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出版日期 | 1994 |
卷号 | 10期号:2页码:107-113 |
关键词 | Zirconium dioxide Acid-base property Acid and base probes TPD IR |
英文摘要 | acid-base properties of zro2 pretreated at 873 k have been studied in relation to a typical acidic sio2-al2o3 and a typical basic mgo catalysts by examining the tpd behavior of nh3,co2, pyridine, et3n, and phenol. the weakly acidic property of zro2 is evidenced by a much lower desorption temperature of nh3 in comparison with that of sio2-al2o3, and its weakly basic property by a much lower desorption temperature of co2 in comparison with that of mgo. nh3,pyridine and et3n show similar tpd profiles though decomposition to ch3cn occurs in the tpd process of et3n. it is shown by the ir of adsorbed nh3 that the acid sites on zro2 are lewis acidic in nature, and some of them c. become more acidic in strength at elevated temperatures, three tpd peaks on the tpd profiles of nh3 and co2 are observed,respectively.the temperature range of nh3-peaks is very close to that of co2-peaks. it is concluded from these observations that the strength of the acid and base sites on zro2 are well matched, and that zro2 is a typical acid base bifunctional catalyst. a discussion on the relation between the adsorbed surface species and the desorption of nh3 and co2 is given based on the ir results of adsorbed nh3 and co2, respectively. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, physical |
研究领域[WOS] | chemistry |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000207588900004 |
公开日期 | 2015-11-10 |
源URL | [http://159.226.238.44/handle/321008/139413] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Dalian Univ Technol, Sch Chem Engn, Dept Chem, Dalian 116012, Peoples R China 2.Hokkaido Univ, Fac Sci, Dept Chem, Sapporo, Hokkaido 060, Japan 3.Acad Sinica, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Xu Boqing,Tsutomu, Yamaguchi,Koze, Tanabe,et al. Characterization of Acid-base Property of ZrO2 by Thermal Desorption: 1. TPD Studies of Acid and Base Probes[J]. acta physico-chimica sinica,1994,10(2):107-113. |
APA | Xu Boqing,Tsutomu, Yamaguchi,Koze, Tanabe,Liang Juan,&Zheng Lubin.(1994).Characterization of Acid-base Property of ZrO2 by Thermal Desorption: 1. TPD Studies of Acid and Base Probes.acta physico-chimica sinica,10(2),107-113. |
MLA | Xu Boqing,et al."Characterization of Acid-base Property of ZrO2 by Thermal Desorption: 1. TPD Studies of Acid and Base Probes".acta physico-chimica sinica 10.2(1994):107-113. |
入库方式: OAI收割
来源:大连化学物理研究所
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