| 溶胶-凝胶法制备二元炭质-TiO_2气凝胶前驱体 |
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| 引用本文： | 李轩科,刘朗,沈士德,刘静.溶胶-凝胶法制备二元炭质-TiO_2气凝胶前驱体[J].新型炭材料,2000(2). |
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| 作者姓名： | 李轩科 刘朗 沈士德 刘静 |
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| 作者单位： | 中国科学院山西煤炭化学研究所!山西太原03001(李轩科，刘朗)，武汉科学大学!湖北武汉430081(沈士德)，武汉钢铁公司钢研所!湖北武汉430081(刘静) |
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| 摘 要： | 以炭质水性中间相和四氯化钛为原料 ,分别制取了炭质溶胶 -凝胶和钛溶胶 -凝胶 ,然后将二者充分搅拌混合后 ,再进行超临界干燥制得了二元炭质 /二氧化钛气凝胶粉末前驱体。利用 FT- IR,XRD和 TEM技术对二元炭质 /氧化钛粉末进行了表征。研究结果表明 ,二元炭质 /氧化钛粉末具有小于 10 nm的颗粒尺寸 ,炭和氧化钛混合均匀且具有较高的比表面和疏松的表观结构。
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| 关 键 词： | 二元炭质/二氧化钛气凝胶 溶胶-凝胶法 超临界干燥 |
THE PREPARATION OF BINARY CARBONACEOUS TITANIA AEROGEL PRECURSOR BY USING SOL-GEL METHOD |
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| LI Xuan ke ,LIU Lang ,SHEN Shi de ,LIU Jing.THE PREPARATION OF BINARY CARBONACEOUS TITANIA AEROGEL PRECURSOR BY USING SOL-GEL METHOD[J].New Carbon Materials,2000(2). |
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| Authors: | LI Xuan ke LIU Lang SHEN Shi de LIU Jing |
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| Affiliation: | LI Xuan ke 1,LIU Lang 1,SHEN Shi de 2,LIU Jing 3 |
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| Abstract: | By using carbonaceous aqua mesophase and titanium tetrachloride as starting materials, respectively, the carbonaceous sol and titania sol were prepared. Then the two sols were mixed and dried under supercritical conditions to obtain ultrafine carbonaceous titania aerogel powder precursor. The binary carbon titania powder was characterized by FT IR, TEM and X ray analysis. Results showed that the binary carbonaceous titania powders with particle sizes below 10 nm are homogeneously distributed, and have higher BET surface area as well as a loose appearance structure. |
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| Keywords: | Binary carbonaceous TiO 2 aerogel Sol gel method Supercritial drying |
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