期刊
RSC ADVANCES
卷 5, 期 28, 页码 21471-21479出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra14751k
关键词
-
资金
- Science Engineering and Research Council, Department of Science and Technology, Government of India
Nanoenergetic materials have been widely explored for obtaining rapid release of energy, burn-speeds and high pressurization rates. In this study, we have synthesized Co3O4 nanobelts via a simple solid-state process and further integrated as-prepared Co3O4 and calcined Co3O4 (at 400 degrees C for 4 hr) (Co3O4-400) with nano-aluminum (nAl) to realize novel bulk nanoenergetic systems of Co3O4/nAl and Co3O4-400/nAl respectively. The heat of reaction and combustion performance of these nanoenergetic systems are studied by thermogravimetric and differential scanning calorimetry (TG-DSC), combustion front-wave speed and pressure-time characteristics measurements. The heat of reaction has been measured to be 0.96 kJ g(-1) for Co3O4/nAl and 1.02 kJ g(-1) for Co3O4-400/nAl nanoenergetic systems. The Co3O4/nAl nanoenergetic system is able to develop mild peak pressure (12.6 +/- 1 to 20 +/- 2 MPa) and pressurization rate (0.08 +/- 0.05 to 0.14 +/- 0.05 MPa mu s(-1)) having a characteristics of low gas generation, which can be harnessed in low intensity pressure-pulse based microporation of soft matters like bacterial cells without any lysis. The calcined Co3O4 oxidizer is capable to develop more reactive nanoenergetic system than Co3O4/nAl, reflecting the generation of moderate peak pressure (26 +/- 2 to 32.6 +/- 3 MPa) and pressurization rate (0.29 +/- 0.1 to 0.47 +/- 0.1 MPa mu s(-1)). The propagating flames of (Co3O4/Co3O4-400)/nAl are observed accelerating during instrumented burn tube combustion experiment with front combustion front-wave speed ranging from 480 +/- 25 to 830 +/- 75 m s(-1). Through this paper, the Co3O4 nanoenergetic oxidizers can be utilized in the generation of low to moderate pressure pulses to transport biological materials to soft matters.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据