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The difference between borate and phosphate modified carbon nanotubes in isopentane oxidative dehydrogenation
Huang, Rui; Liang, Chang Hai; Su, Dang Sheng; Zong, Baoning; Rong, Junfeng; dangsheng@fhi-berlin.mpg.de
2015
Source PublicationCATALYSIS TODAY
ISSN0920-5861
Volume249Pages:161-166
AbstractBorate and phosphate modified carbon nanotubes with different loading amounts are synthesized by a facile impregnation method and used as metal-free catalyst for oxidative dehydrogenation of isopentane. When the loading of borate was less than 5 wt% B2O3 decrease in isopentane conversion and increase in alkene selectivity was observed, whereas with increase in borate loading exceeding 5 wt% B2O3 the conversion and selectivity remain constant. This phenomenon is significantly different from the volcanic distribution of dehydrogenation selectivity of the phosphate modified carbon nanotubes. We propose that borate modification is more selective than phosphate modification toward the blockage of defects and the inhibition of combustion reaction on the CNTs supported by X-ray photoelectron spectroscopy, temperature-programmed desorption and oxidation. The synergetic effect of borate and phosphate has not been observed in the isopentane oxidative dehydrogenation. (C) 2014 Elsevier B.V. All rights reserved.
description.department[huang, rui ; liang, chang hai] dalian univ technol, lab adv mat & catalyt engn, dalian 116024, peoples r china ; [huang, rui ; su, dang sheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [zong, baoning ; rong, junfeng] sinopec res inst petr proc, beijing 100083, peoples r china
KeywordBorate Phosphate Carbocatalysis Oxidative Dehydrogenation Isopentane
Funding OrganizationMOST [2011CBA00504]; NSFC of China [21133010, 21203215, 51221264, 21261160487]; Chinese Academy of Sciences [XDA09030103, 21203214]; Sinopec China
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75187
Collection中国科学院金属研究所
Corresponding Authordangsheng@fhi-berlin.mpg.de
Recommended Citation
GB/T 7714
Huang, Rui,Liang, Chang Hai,Su, Dang Sheng,et al. The difference between borate and phosphate modified carbon nanotubes in isopentane oxidative dehydrogenation[J]. CATALYSIS TODAY,2015,249:161-166.
APA Huang, Rui,Liang, Chang Hai,Su, Dang Sheng,Zong, Baoning,Rong, Junfeng,&dangsheng@fhi-berlin.mpg.de.(2015).The difference between borate and phosphate modified carbon nanotubes in isopentane oxidative dehydrogenation.CATALYSIS TODAY,249,161-166.
MLA Huang, Rui,et al."The difference between borate and phosphate modified carbon nanotubes in isopentane oxidative dehydrogenation".CATALYSIS TODAY 249(2015):161-166.
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