在泡沫碳化硅载体上原位生长silicalite--1型沸石晶体

材料研究学报

2010, Vol. 24

Issue (1): 25-32

研究论文

本期目录 | 过刊浏览

在泡沫碳化硅载体上原位生长silicalite--1型沸石晶体

矫义来; 杨振明; 张劲松

中国科学院金属研究所沈阳 110016

Growth of Silicalite–1 Coatings on SiC Foam Support

JIAO Yilai ; YANG Zhenming ; ZHANG Jinsong

Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016

引用本文:

矫义来杨振明张劲松. 在泡沫碳化硅载体上原位生长silicalite--1型沸石晶体[J]. 材料研究学报, 2010, 24(1): 25-32.
. Growth of Silicalite–1 Coatings on SiC Foam Support[J]. Chin J Mater Res, 2010, 24(1): 25-32.

全文: PDF(1368 KB)

摘要:

以多晶硅颗粒为硅源, 在泡沫碳化硅载体上原位水热合成silicalite--1型沸石晶体。研究了硅颗粒加入量、NaOH浓度以及合成时间等因素对沸石晶体的负载量、晶体尺寸和沸石晶体/泡沫碳化硅复合材料比表面积的影响。结果表明,
以多晶硅颗粒为硅源控制硅酸根的释放速度, 使沸石晶体在碳化硅载体表面异质界面形核, 从而实现沸石晶体在泡沫碳化硅载体表面的连续生长; 当多晶硅量过少时, 溶液中的硅酸根浓度过低, 不能在载体表面形成连续生长的沸石层;
而当多晶硅量过大时, 溶液中硅的浓度过高, 部分沸石晶体在溶液当中形核, 使沸石晶体在载体表面的负载量下降; 提高溶液中NaOH的浓度, 加快硅的溶解, 使溶液中硅的饱和浓度升高, 沸石晶体的形核率也随之升高, 使沸石晶体的负载量增加。在最优条件下制备的silicalite--1/泡沫碳化硅复合材料其沸石晶体的比表面积为81.28 m²g^-1。

关键词 ：无机非金属材料 , silicalite-1/泡沫碳化硅复合材料 , 固态硅源 , silicalite-1 型沸石 , 水热合成

Abstract：

Solid polycrystalline silicon particles were used as Si source for in situ hydrothermal synthesis of continuous silicalite–1 coating on SiC foam support in this paper. It is supposed that the Si dissolution rate was suppressed by using solid Si source, which subsequently led to zeolite crystals preferential nucleation and growth on the support. The loading amount, crystal size, layer thickness and specific surface area of the synthesized zeolite coatings were investigated with respect to the polycrystalline silicon particle amount and concentration of NaOH and reaction time. It is found that continuous zeolite layer can not form on the SiC foam ceramic support with too low amount of polycrystal silicon, because of the low concentration of silicic acid radical ions in the solution. By contrast, when the polycrystal silicon amount is too high, the zeolite loading on the support is low. In addition, increasing the NaOH concentration can promote silicon dissolution, increase the saturation concentration of silicon, promote the zeolite nucleation, and increase the loading of zeolite crystals. Zeolite layer with the maximum loading amount of zeolite and a specific surface area of 81 m2g−1 was fabricated on the SiC foam support under optimum conditions.

Key words： Inorganic non-metallic materials Zeolite/SiC foam composite Solid Si source silicalite-1 type zeolite Hydrothermal synthesis

收稿日期: 2009-08-20

基金资助:

国家八六三计划、十一五新材料领域重点资助项目2007AA030205。

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[1]J.Weitkamp, Zeolites and catalysis, Solid State Ionics, 131(1–2), 175(2000)
[2]J.Coronas, J.Santamaria, The use of zeolite films in small– scale and micro–scale applications, Chemical Engineering Science, 59(22–23), 4879(2004)
[3] M.V.Twigg, J.T.Richardson, Fundamentals and applications of structured ceramic foam catalysts, Industrial & Engineering Chemistry Research, 46(12), 4166(2007)
[4]M.Lacroix, M.Lacroix, P.Nguyen, D.Schweich, C.Pham–Huu, S.Savin–Poncet, Pressure drop measurements and modeling on SiC foams. Chemical Engineering Science, 62(12), 3259(2007)
[5]G.Incera Garrido, F.C.Patcas, S.Lang, B.Kraushaar–Czarnetzki, Mass transfer and pressure drop in ceramic foams: A description for different pore sizes and porosities, Chemical Engineering Science, 63(21), 5202(2008)
[6]F.C.Patcas, G.I.Garrido, B.Kraushaar–Czarnetzki, CO oxidation over structured carriers: A comparison of ceramic foams, honeycombs and beads, Chemical Engineering Science, 62(15), 3984(2007)
[7]JIAO Yilai, YANG Zhenming, CAO Xiaoming, TIAN Chong, SU Dangsheng, ZHANG Jinsong, Preparation of silicalite–1 coating on SiC foam ceramics by support self–transformation, Chinese Journal of Materials Research, 23(5), 458(2009)
[8]矫义来, 杨振明, 曹小明, 田冲, 苏党生, 张劲松, 在泡沫碳化硅载体上自转化合成silicalite--1型沸石晶体, 材料研究学报, 23(5), 458(2009)
[9]R.Szostak, Molecular Sieves: Principles of Synthesis and Identification (London, Thomson Science, 1998) p.77

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