Synthesis and characterization of pure STW-zeotype germanosilicate, Cu- and Co-substituted STW-zeotype materials

doi:10.1016/j.jssc.2014.12.031

CORC > 北京大学 > 化学与分子工程学院

	Synthesis and characterization of pure STW-zeotype germanosilicate, Cu- and Co-substituted STW-zeotype materials
	Zhang, Na ; Shi, Lei ; Yu, Tingting ; Li, Tianduo ; Hua, Wei ; Lin, Cong
刊名	journal of solid state chemistry
	2015
DOI	10.1016/j.jssc.2014.12.031
英文摘要	Pure STW-type germanosilicate (denoted as GeSi-STW), Cu- and Co-containing STW-zeotype (denoted as Cu-STW and Co-STW) materials were synthesized by the hydrothermal method in the presence of an organic structure-directing agent (OSDA), N,N-diethylethylenediamine (DEEDA). The effects of the reaction mixture ratio and the incorporation of transition metals M (M=Cu and Co) on the synthesis of the pure product was investigated. The synthesized samples were characterized by powder and single-crystal X-ray diffraction (XRD), scanning electron microscopy (SEM), inductively coupled plasma analysis (ICP), thermogravimetric and differential scanning calorimetry (TG-DSC) analysis and UV-vis diffuse reflectance spectra (DRS). The results reveal that the crystallization time, the concentration of H2O in the reaction mixture and the addition of HF all have an important impact on the synthesis of pure STW-type zeolite. GeSi-STW is stable up to 800 ??C, and has much higher thermal stability than SU-32 (stable to 400 ??C). Co and Cu have been introduced for the first time into STW-zeotype materials. ? 2015 Elsevier Inc. All rights reserved.; SCI(E); EI; 0; ARTICLE; qg_shilei@163.com; ylpt6296@vip.163.com; 271-277; 225
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/263684]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Na,Shi, Lei,Yu, Tingting,et al. Synthesis and characterization of pure STW-zeotype germanosilicate, Cu- and Co-substituted STW-zeotype materials[J]. journal of solid state chemistry,2015.
APA	Zhang, Na,Shi, Lei,Yu, Tingting,Li, Tianduo,Hua, Wei,&Lin, Cong.(2015).Synthesis and characterization of pure STW-zeotype germanosilicate, Cu- and Co-substituted STW-zeotype materials.journal of solid state chemistry.
MLA	Zhang, Na,et al."Synthesis and characterization of pure STW-zeotype germanosilicate, Cu- and Co-substituted STW-zeotype materials".journal of solid state chemistry (2015).