Constructing surface active centres using pd-fe-o on zeolite for co oxidation
文献类型:期刊论文
作者 | Bi, Yushui; Chen, Liang; Lu, Gongxuan |
刊名 | Journal of molecular catalysis a-chemical
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出版日期 | 2007-04-02 |
卷号 | 266期号:1-2页码:173-179 |
关键词 | Co oxidation Catalytic active centre Support Construction Zeolite Pd/nazsm-5 |
ISSN号 | 1381-1169 |
DOI | 10.1016/j.molcata.2006.11.011 |
通讯作者 | Lu, gongxuan(gxlu@lzb.ac.cn) |
英文摘要 | Newly active centres for co oxidation using pd-m-o (m = cr, mn, fe, co, ni, cu, zn, mo, and zr) on zeolite have been constructed. the derived co-impregnated pd-fe-o(x)/nazsm-5 catalyst not only showed high catalytic activity for low temperature co oxidation, but was also a good kind of electrocatalyst for co electrochemical stripping. it was probably because that the active centres including special oxygen species exhibit the high activity for co oxidation. the typical 50% and 100% conversion temperatures of the co-impregnated pd-fe-o(x)/nazsm-5 catalyst for low temperature co oxidation (t(50) and t(100)) were 29.1 and 47 degrees c, respectively. xrd and xps characterizations indicated that the addition of fe increased the dispersion of the active pd species and pd species were easy to enrich on the surface of the catalyst. a functional interface, bimetallic catalytic active centre, was formed on the surface of the catalyst, which contained a certain quantity of special oxygen species. the direct proofs of the existence of this kind of active oxygen species were given by our h(2)-tpr and o(2)-tpd experiments. (c) 2006 elsevier b.v. all rights reserved. |
WOS关键词 | CATALYSTS ; NANOPARTICLES ; OXIDES |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Physical |
语种 | 英语 |
WOS记录号 | WOS:000245672000026 |
出版者 | ELSEVIER SCIENCE BV |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383279 |
专题 | 中国科学院大学 |
通讯作者 | Lu, Gongxuan |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Bi, Yushui,Chen, Liang,Lu, Gongxuan. Constructing surface active centres using pd-fe-o on zeolite for co oxidation[J]. Journal of molecular catalysis a-chemical,2007,266(1-2):173-179. |
APA | Bi, Yushui,Chen, Liang,&Lu, Gongxuan.(2007).Constructing surface active centres using pd-fe-o on zeolite for co oxidation.Journal of molecular catalysis a-chemical,266(1-2),173-179. |
MLA | Bi, Yushui,et al."Constructing surface active centres using pd-fe-o on zeolite for co oxidation".Journal of molecular catalysis a-chemical 266.1-2(2007):173-179. |
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来源:中国科学院大学
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