商业硅油的热分解以高产率生产高表面积碳化硅纳米棒。

Thermal decomposition of commercial silicone oil to produce high yield high surface area SiC nanorods.

作者信息

Pol V G, Pol S V, Gedanken A, Lim S H, Zhong Z, Lin J

机构信息

Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.

出版信息

J Phys Chem B. 2006 Jun 15;110(23):11237-40. doi: 10.1021/jp061407e.

DOI:10.1021/jp061407e

PMID:16771390

Abstract

This article reports on the synthesis of high surface area (563m2/g) beta-SiC nanorods by thermal decomposition of commercial silicone oil at a relatively low reaction temperature (800 degrees C) in a closed Swagelok cell. High yield (75%) of SiC nanorods are obtained in this one-stage, solvent-, catalyst-, and template-free synthesis technique that runs at a relative low temperature and employs cheap single-precursor. The morphological (TEM, HR-SEM), compositional (CHNS, EDX, SAEDX]), structural (XRD, HR-TEM, and ED), thermal (TGA) characterizations and surface area analysis are carried out for the obtained SiC nanorods. The possibility of hydrogen storage in this high surface area nano-SiC rods are also tested and reported for the first time.

摘要

本文报道了通过在封闭的Swagelok管中于相对较低的反应温度（800摄氏度）下热分解市售硅油来合成高表面积（563平方米/克）的β-SiC纳米棒。在这种一步法、无溶剂、无催化剂和无模板的合成技术中，以相对较低的温度运行并使用廉价的单前驱体，可获得75%的高产率SiC纳米棒。对所得的SiC纳米棒进行了形态学（透射电子显微镜、高分辨率扫描电子显微镜）、成分分析（元素分析仪、能谱仪、扫描透射电子能谱）、结构分析（X射线衍射、高分辨率透射电子显微镜和电子衍射）、热分析（热重分析）以及表面积分析。还首次测试并报道了这种高表面积纳米SiC棒中储氢的可能性。