首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
直接合成中孔材料MCM-41
作者:唐晓红 赵蕾 王红心 魏军旗 苏运来 郭益群 
单位:郑州大学化学系 郑州大学化学系 郑州大学化学系 郑州农药厂 郑州大学化学系 郑州大学化学系 郑州450052  郑州450052  郑州450052  郑州450000  郑州450052  郑州450052 
关键词:合成  中孔材料  敞开体系 
分类号:TQ424.25
出版年,卷(期):页码:2003,31(6):612-614
DOI:
摘要:
以水玻璃为硅源 ,三甲基十六烷基溴化胺 (cetyltrimethylammoniumbromide ,CTAB)为模板剂 ,10 %的H2 SO4为pH调节剂 ,在敞开体系中直接合成中孔分子筛MCM 41。利用XRD和孔径分布测定对合成的分子筛进行了结构表征 ,研究了料浆的n(Si) /n(CTAB)比值 ,体系的pH值 ,晶化温度和时间对MCM 41合成的影响。根据实验给出合成条件为 :n(Si) /n(CTAB) =5~ 7,浆料pH值 10 .5~ 10 .7,合成温度 373K ,晶化时间 12~ 2 4h。
married cheaters how many women cheat click
read read here link
A convenient and economic method for direct preparing mesoporous material,MCM 41,in an open vessel byusingwater glass asthesiliconsource ,(CH3) 3C16 H33NBr(cetyltrimethylammoniumbromide,CTAB)astheplattingagent,andH2 SO4 astheadjustableagentof pHvalueofslurrywasstudied .XRDandnitrogenadsorptionshowthattheproducthasahighorderedstructureandthehexagonalarrange mentsofuniformsizeporesdistribution .Theinfluencesofn(Si) /n(CTAB) ,thepHvalueofslurryandthecrystallizingtemperatureandtime onsynthesisarediscussed .Accordingtotheexperimentresultstheoptimizedconditionsforsynthesizingmesoporousmolecularsievesinanopen systemaregivenasfollows :n(Si) /n(CTAB) =5— 7,pH =10 .5— 10 .7,T =3 73K ,t=12— 2 4h .
online women that cheat with married men married woman looking to cheat
read read here link
printable coupons for cialis outbackuav.com coupon for free cialis
sumatriptan side effects sumatriptan side effects sumatriptan side effects
cialis discount coupons cialis 2015 coupon
基金项目:
河南省自然科学基金资助项目 ( 2 0 0 115 0 0 0 2 0 )
作者简介:
why women cheat on husbands online link
how do i know if my wife has cheated men having affairs read
how to catch a cheater link go
printable coupons for cialis outbackuav.com coupon for free cialis
参考文献:
[1]KRESGEC ,LEONOVICZM ,ROTHW ,etal.Orderedmesoporousmolecularsievessynthesizedbyliquid crystaltemplatemechanism[J].Nature,1992,359:710—712. [2]BECKJS ,VARTULIJC ,ROTHWJ,etal.Anewfamilyofmeso porousmolecularsievespreparedwithliquidcrystaltemplates[J].JAmChemSoc,1992,114(27):10834—10843. [3]齐 凯,杨振忠,杨运信,等.模板技术制备单块介孔分子筛[J\〗.高等学校化学学报,2002,23(2):339—341.QIKai,YANGZhenzhong,YANGYunxin,etalChemJChinUniv(inChinese),2002,23(2):339—341. [4]王连洲,禹 剑,施剑林,等.合成条件对介孔氧化硅材料孔径尺寸的影响[J].硅酸盐学报,1999,27(1):22—27.WANGLianzhou,YUJian,SHIJianlin,etal.JChinCeramSoc(inChinese),1999,27(1):22—27. [5]王连洲,禹 剑,施剑林,等.Mn掺杂的介孔氧化硅材料的合成与表征[J].硅酸盐学报,1999,27(1):89—94.WANGLianzhou,YUJian,SHIJianlin,etal.JChinCeramSoc(inChinese),1999,27(1):89—94. [6]王连洲,施剑林,张文华,等.合成温度对介孔氧化硅材料相结构的影响[J].硅酸盐学报,1999,27(6):685—691.WANGLianzhou,SHIJianlin,ZHANGWenhua,etal.JChinCeramSoc(inChinese),1999,27(6):685—691. [7]李文江,赵 纯,宋利珠,等.水玻璃为原料在开放体系中快速合成介孔材料MCM 41[J].高等学校化学学报,2001,22(6):1013—1015.LIWenjiang,ZHAOChun,SONGLizhu,etal.ChemJChinUniv(inChinese),2001,22(6):1013—1015. [8]陈晓银,丁国忠,陈海鹰,等.晶化温度对中孔分子筛结构转变的影响[J].高等学校化学学报,1997,18(2):186—189.CHENHaiyin,DINGGuozhong,CHENHaiying,etal.ChemJChinUniv(inChinese),1997,18(2):186—189. [9]高雄厚,毛学文,唐荣荣,等.提高MCM 41分子筛稳定性的研究[J].石油学报(石油加工),1997,13(3):15—20.GAOXionghou,MAOXuewen,TANGRongrong,etal.ActaPetSinica(inChinese),1997,13(3):15—20.
how to cheat women who want to cheat wife cheat story
online click open
why do wife cheat on husband why wifes cheat how to cheat wife
cialis coupon cialis coupon cialis coupon
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com