Cobalt impregnated magnetite-multiwalled carbon nanotube nanocomposite as magnetically separable efficient catalyst for hydrogen generation by NaBH4 hydrolysis

被引：80

作者：

Bandal, H. A. ^{[1
]}

Jadhav, A. R. ^{[1
]}

Kim, H. ^{[1
]}

机构：

[1] Myongji Univ, Dept Energy Sci & Technol, Smart Living Innovat Technol Ctr, Yongin 17058, Gyeonggi Do, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 699卷

基金：

新加坡国家研究基金会;

关键词：

Cobalt impregnated Fe3O4-carbon nanotubes; Hydrogen generation; NaBH4; hydrolysis; SODIUM-BOROHYDRIDE SOLUTION; TIO2; NANOFIBER; ACTIVATED TIO2; SUPPORTED CO; OXIDE; NANOPARTICLES; PERFORMANCE; STORAGE; FOAM;

D O I：

10.1016/j.jallcom.2016.12.428

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Magnetite-multiwalled carbon nanotube nanocomposites were successfully synthesized and investigated as a catalyst for alkali free hydrolysis of sodium borohydride. Structure and morphologies of nanocomposites were studied by FT-IR, SEM-EDX, XRD and BET surface area analysis. SEM images of magnetite revealed the presence of roughly spherical nanoparticles of uniform shape and size. The introduction of carbon nanotubes caused the assembly of otherwise randomly arranged nanoparticles along the surface of carbon nanotubes. FT-IR analysis showed that the hydrophilic functional group introduced on the surface of carbon nanotubes during oxidation process are responsible for assembly of magnetite nanoparticles. The surface area of the nanocomposite was found to increase with an increase in the amount of carbon nanotubes. Catalytic activity of the nanocomposite materials was further enhanced by incorporating Co on their surface. The Co incorporated nanocomposite displayed high catalytic activity with H-2 generation rate of 1213 mL min(-1) g(-1) at room temperature. Furthermore, catalyst could be easily recycled and displayed good stability for 5 recycles making it suitable for commercial application. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1057 / 1067

页数：11

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