Structure and phase analysis of one-pot hydrothermally synthesized FePO4-SBA-15 as an extremely stable catalyst for harsh oxy-bromination of methane

	Structure and phase analysis of one-pot hydrothermally synthesized FePO4-SBA-15 as an extremely stable catalyst for harsh oxy-bromination of methane
	Wang, Runqin 1,3; Lin, Ronghe 1; Ding, Yunjie 1,2; Liu, Jia 1,3; Wang, Junhu 2,4; Zhang, Tao 2,4
刊名	applied catalysis a-general
	2013-02-26
卷号	453 页码:235-243
关键词	SBA-15 Iron phosphate Methane Oxy-bromination Stability
ISSN号	0926-860x
通讯作者	丁云杰
产权排序	待补充
合作状况	英
英文摘要	fepo4-sba-15 (op) was directly synthesized via a one-pot hydrothermal technique, using fe(no3)(3) and h3po4 as the precursors. fepo4/sba-15 (imp) was also prepared as a reference, using an impregnation method and commercially available sba-15 as the support. the yielding samples were employed to catalyze the harsh oxy-bromination of methane (obm) reaction, showing similar initial catalytic performances. the fresh and spent samples after catalytic reaction were thoroughly characterized by n-2-physisoption, inductively coupled plasma, wide- and small-angle x-ray diffraction, transmission electron microscopy, diffuse reflectance uv-vis spectroscopy, temperature-programmed oxidation, and room temperature fe-57 mossbauer spectroscopy. it was found that the fepo4 was in good crystalline in the op sample while it was in amorphous for the imp catalyst. despite this difference, both fepo4 phases in the fresh samples were transformed into fe-2(po4)(6) and fe2p2o7 in the spent ones. furthermore, the op catalyst showed excellent stability in a period of 1000 h time-on-stream performance without apparent deposition of cokes. the losses of p and fe after the catalytic evaluation were only 9.5% and 15.5%, respectively, while the ratio of p/fe remained close to 1.0. n-2-adsorption and tem observations confirmed that the mesoporous pores were extremely stable under the harsh reaction ambience, which might play a crucial role in the stability test. (c) 2012 elsevier b.v. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; life sciences & biomedicine
类目[WOS]	chemistry, physical ; environmental sciences
研究领域[WOS]	chemistry ; environmental sciences & ecology
关键词[WOS]	iron phosphate catalyst ; mesoporous materials ; oxidative bromination ; nitrous-oxide ; sba-15 ; acid ; silica ; dehydrogenation ; hydrolysis ; fe-sba-15
收录类别	SCI
资助信息	1，1
原文出处	243
语种	英语
WOS记录号	WOS:000315610300028
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119369]
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Runqin,Lin, Ronghe,Ding, Yunjie,et al. Structure and phase analysis of one-pot hydrothermally synthesized FePO4-SBA-15 as an extremely stable catalyst for harsh oxy-bromination of methane[J]. applied catalysis a-general,2013,453:235-243.
APA	Wang, Runqin,Lin, Ronghe,Ding, Yunjie,Liu, Jia,Wang, Junhu,&Zhang, Tao.(2013).Structure and phase analysis of one-pot hydrothermally synthesized FePO4-SBA-15 as an extremely stable catalyst for harsh oxy-bromination of methane.applied catalysis a-general,453,235-243.
MLA	Wang, Runqin,et al."Structure and phase analysis of one-pot hydrothermally synthesized FePO4-SBA-15 as an extremely stable catalyst for harsh oxy-bromination of methane".applied catalysis a-general 453(2013):235-243.