Selective oxidation of H2S over Fe supported on Zr-intercalated Laponite clay mesoporous composite catalysts at low temperature

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	Selective oxidation of H2S over Fe supported on Zr-intercalated Laponite clay mesoporous composite catalysts at low temperature
	Zhang, Fenglian; Zhang, Xin; Jiang, Guoxia; Sun, Yonggang; Hao, Zhengping; Liu, Xin; Qu, Siqiu
刊名	CATALYSIS TODAY
	2020-09-15
卷号	355 页码:366-374
关键词	Zr-intercalated clay Iron oxides Mesoporous structure Catalytic mechanism H2S selective oxidation
ISSN号	0920-5861
英文摘要	A series of iron supported on Zr-intercalated clay composite catalysts with mesoporous structure, a high specific surface area, and high thermal stability were successfully synthesized (named Fe/Zr-Lap catalysts) and tested for H2S selective oxidation. The structural characteristics and physicochemical properties of the catalysts were investigated using various methods. The iron species existed mainly as isolated Fe3+ and polymeric (FeO)(n) species in an octahedral coordination. All of the Fe/Zr-Lap catalysts exhibited excellent catalytic activity at relatively low temperatures (120-200 degrees C). The 8% Fe/Zr-Lap catalyst presented the best catalytic performance at 180 degrees C. It is likely that highly dispersed iron species, abundant chemically adsorbed oxygen vacancies, synergistic effect of iron and zirconium species, and improved reducibility played important roles in the reaction. Besides, the reaction and deactivation mechanisms were also proposed.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44887]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Zhang, Fenglian,Zhang, Xin,Jiang, Guoxia,et al. Selective oxidation of H2S over Fe supported on Zr-intercalated Laponite clay mesoporous composite catalysts at low temperature[J]. CATALYSIS TODAY,2020,355:366-374.
APA	Zhang, Fenglian.,Zhang, Xin.,Jiang, Guoxia.,Sun, Yonggang.,Hao, Zhengping.,...&Qu, Siqiu.(2020).Selective oxidation of H2S over Fe supported on Zr-intercalated Laponite clay mesoporous composite catalysts at low temperature.CATALYSIS TODAY,355,366-374.
MLA	Zhang, Fenglian,et al."Selective oxidation of H2S over Fe supported on Zr-intercalated Laponite clay mesoporous composite catalysts at low temperature".CATALYSIS TODAY 355(2020):366-374.