用作气相催化反应体系CNF/泡沫炭催化剂载体的合成(英文)  

Synthesis of carbon nanofiber/carbon-foam composite for catalyst support in gas-phase catalytic reactions

作　　者：鲍英[1] 詹亮[1] 王春晓[1] 王艳莉[1] 杨光智[2] 杨俊和[2] 乔文明[1] 凌立成[1] 

机构地区：[1]华东理工大学化学工程联合国家重点实验室特种功能高分子材料及其相关技术教育部重点实验室,上海200237 [2]上海理工大学材料科学与工程学院,上海200093

出　　处：《新型炭材料》2011年第5期341-346,共6页New Carbon Materials

基　　金：National Natural Science Foundation of China(50730003,50672025,20806024 and 51002051);Fundamental Research Fundsfor the Central Universities(WA1014016);Research Fund of China 863 Program(2008AA062302);Project of the Nation-al Science and Technology Ministry(2009BAE72B04)~~

摘　　要：以中间相沥青为碳质前躯体,采用自发泡法制得泡沫炭。为了提高比表面积,泡沫炭经质量分数65%的HNO3氧化后,采用化学气相沉积法在其表面生长一层纳米炭纤维(CNFs)。泡沫炭表面生长一层CNFs后,其比表面积和导热系数分别由40m2/g、107W/mK相应提高到198m2/g、125W/mK。这种结构的CNFs/泡沫炭复合材料可以用作气相催化反应体系的催化剂载体。A carbon foam was prepared by self-bubbling using mesophase pitch as a precursor. To improve its specific surface area, the carbon foam was oxidized with 65 mass% HNO3, and then a layer of carbon nanofibers （CNFs） was grown on the pore walls using chemical vapor deposition. The specific surface area and thermal conductivity of the carbon foam and CNF/carbon foam composite are 40 and 198 m2/g and 107 and 125 W/mK, respectively. This CNF/carbon-foam composite can be used as a catalyst support for gas-phase catalytic reactions.

关 键 词：泡沫炭 纳米碳纤维 催化剂载体 

分 类 号：O643.36[理学—物理化学]